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• Unable to connect to OpenVPN server

  - by Incognito

  I'm trying to get a working setup of OpenVPN on my VM and authenticate into it from a client. I'm not sure but it looks to me like it's socket related, as it's not set to LISTEN, and localhost seems wrong. I've never set up VPN before. # netstat -tulpn | grep vpn Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name udp 0 0 127.0.0.1:1194 0.0.0.0:* 24059/openvpn I don't think this is set up correctly. Here's some detail into what I've done. I have a VPS from MediaTemple: These are my interfaces before starting openvpn: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:39482 errors:0 dropped:0 overruns:0 frame:0 TX packets:39482 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3237452 (3.2 MB) TX bytes:3237452 (3.2 MB) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:4885284 errors:0 dropped:0 overruns:0 frame:0 TX packets:4679884 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:835278537 (835.2 MB) TX bytes:1989289617 (1.9 GB) venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:205.[redacted] P-t-P:205.186.148.82 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 I've followed this guide on setting up a basic server and getting a .p12 file, however, I was receiving an error that stated /dev/net/tun was missing, so I created it mkdir -p /dev/net mknod /dev/net/tun c 10 200 chmod 600 /dev/net/tun This resolved the error preventing the service from launching, however, I am unable to connect. On the server I've set up the myserver.conf file (as per the tutorial) to indicate local 127.0.0.1 (I've also attempted with the public IP address, perhaps I don't understand what they mean by local IP?). The server launches without error, this is what the log looks like when it starts: Sun Apr 1 17:21:27 2012 OpenVPN 2.1.3 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Mar 11 2011 Sun Apr 1 17:21:27 2012 IMPORTANT: OpenVPN's default port number is now 1194, based on an official port number assignment by IANA. OpenVPN 2.0-beta16 and earlier used 5000 as the default port. Sun Apr 1 17:21:27 2012 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts Sun Apr 1 17:21:27 2012 /usr/bin/openssl-vulnkey -q -b 1024 -m <modulus omitted> Sun Apr 1 17:21:27 2012 TUN/TAP device tun0 opened Sun Apr 1 17:21:27 2012 /sbin/ifconfig tun0 10.8.0.1 pointopoint 10.8.0.2 mtu 1500 Sun Apr 1 17:21:27 2012 GID set to openvpn Sun Apr 1 17:21:27 2012 UID set to openvpn Sun Apr 1 17:21:27 2012 UDPv4 link local (bound): [AF_INET]127.0.0.1:1194 Sun Apr 1 17:21:27 2012 UDPv4 link remote: [undef] Sun Apr 1 17:21:27 2012 Initialization Sequence Completed This creates a tun0 interface that looks like this: tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) And the netstat command still indicates the state is not set to LISTEN. On the client-side I've installed the p12 certs onto two devices (one is an android tablet, the other is an Ubuntu desktop). I don't see port 1194 as open either. Both clients install the cert files and then ask me for the L2TP secret (which was set on the file), but then they oddly ask me for a username and a password, which I don't know where I could possibly get those from. I attempted all of my logins, and some whacky guesses that were frantically pulling at straws. If there's any more information I could provide let me know.

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• UFW as an active service on Ubuntu

  - by lamcro

  Every time I restart my computer, and check the status of the UFW firewall (sudo ufw status), it is disabled, even if I then enable and restart it. I tried putting sudo ufw enable as one of the startup applications but it asks for the sudo password every time I log on, and I'm guessing it does not protect anyone else who logs on my computer. How can I setup ufw so it is activated when I turn on my computer, and protects all accounts? Update I just tried /etc/init.d/ufw start, and it activated the firewall. Then I restarted the computer, and again it was disabled. content of /etc/ufw/ufw.conf # /etc/ufw/ufw.conf # # set to yes to start on boot ENABLED=yes # set to one of 'off', 'low', 'medium', 'high' LOGLEVEL=full content of /etc/default/ufw # /etc/default/ufw # # Set to yes to apply rules to support IPv6 (no means only IPv6 on loopback # accepted). You will need to 'disable' and then 'enable' the firewall for # the changes to take affect. IPV6=no # Set the default input policy to ACCEPT, ACCEPT_NO_TRACK, DROP, or REJECT. # ACCEPT enables connection tracking for NEW inbound packets on the INPUT # chain, whereas ACCEPT_NO_TRACK does not use connection tracking. Please note # that if you change this you will most likely want to adjust your rules. DEFAULT_INPUT_POLICY="DROP" # Set the default output policy to ACCEPT, ACCEPT_NO_TRACK, DROP, or REJECT. # ACCEPT enables connection tracking for NEW outbound packets on the OUTPUT # chain, whereas ACCEPT_NO_TRACK does not use connection tracking. Please note # that if you change this you will most likely want to adjust your rules. DEFAULT_OUTPUT_POLICY="ACCEPT" # Set the default forward policy to ACCEPT, DROP or REJECT. Please note that # if you change this you will most likely want to adjust your rules DEFAULT_FORWARD_POLICY="DROP" # Set the default application policy to ACCEPT, DROP, REJECT or SKIP. Please # note that setting this to ACCEPT may be a security risk. See 'man ufw' for # details DEFAULT_APPLICATION_POLICY="SKIP" # By default, ufw only touches its own chains. Set this to 'yes' to have ufw # manage the built-in chains too. Warning: setting this to 'yes' will break # non-ufw managed firewall rules MANAGE_BUILTINS=no # # IPT backend # # only enable if using iptables backend IPT_SYSCTL=/etc/ufw/sysctl.conf # extra connection tracking modules to load IPT_MODULES="nf_conntrack_ftp nf_nat_ftp nf_conntrack_irc nf_nat_irc" Update Followed your advise and ran update-rc.d with no luck. lester@mcgrath-pc:~$ sudo update-rc.d ufw defaults update-rc.d: warning: /etc/init.d/ufw missing LSB information update-rc.d: see <http://wiki.debian.org/LSBInitScripts> Adding system startup for /etc/init.d/ufw ... /etc/rc0.d/K20ufw -> ../init.d/ufw /etc/rc1.d/K20ufw -> ../init.d/ufw /etc/rc6.d/K20ufw -> ../init.d/ufw /etc/rc2.d/S20ufw -> ../init.d/ufw /etc/rc3.d/S20ufw -> ../init.d/ufw /etc/rc4.d/S20ufw -> ../init.d/ufw /etc/rc5.d/S20ufw -> ../init.d/ufw lester@mcgrath-pc:~$ ls -l /etc/rc?.d/*ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc0.d/K20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc1.d/K20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc2.d/S20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc3.d/S20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc4.d/S20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc5.d/S20ufw -> ../init.d/ufw lrwxrwxrwx 1 root root 13 2009-12-20 20:34 /etc/rc6.d/K20ufw -> ../init.d/ufw

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• Openldap/Sasl/GSSAPI on Debian: Key table entry not found

  - by badbishop

  The goal: to make an OpenLDAP server to authenticate using Kerberos V via GSSAPI Setup: several virtual machines running on freshly installed/updated Debian Squeeze A master KDC server kdc.example.com A LDAP server, running OpenLDAP ldap.example.com The problem: tom@ldap:~$ ldapsearch -b 'dc=example,dc=com' SASL/GSSAPI authentication started ldap_sasl_interactive_bind_s: Other (e.g., implementation specific) error (80) additional info: SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Key table entry not found) One might suggest to add that bloody keytab entry, but here's the real problem: ktutil: rkt /etc/ldap/ldap.keytab ktutil: list slot KVNO Principal ---- ---- --------------------------------------------------------------------- 1 2 ldap/[email protected] 2 2 ldap/[email protected] 3 2 ldap/[email protected] 4 2 ldap/[email protected] So, the entry as suggested by the OpenLDAP manual is there allright. Deleting and re-creating both service principal and the keytab on ldap.example.com didn't help, I get the same error. And before I make the keytab file readable by openldap, I get "Permission denied" error instead of the one in the subject. Which implies, that the right keytab file is being accessed, as set in /etc/default/slapd. I have my doubts about the following part of slapd config: root@ldap:~# cat /etc/ldap/slapd.d/cn\=config.ldif | grep -v "^#" dn: cn=config objectClass: olcGlobal cn: config olcArgsFile: /var/run/slapd/slapd.args olcLogLevel: 256 olcPidFile: /var/run/slapd/slapd.pid olcToolThreads: 1 structuralObjectClass: olcGlobal entryUUID: d6737f5c-d321-1030-9dbe-27d2a7751e11 olcSaslHost: kdc.example.com olcSaslRealm: EXAMPLE.COM olcSaslSecProps: noplain,noactive,noanonymous,minssf=56 olcAuthzRegexp: {0}"uid=([^/]*),cn=EXAMPLE.COM,cn=GSSAPI,cn=auth" "uid=$1,ou=People,dc=example,dc=com" olcAuthzRegexp: {1}"uid=host/([^/]*).example.com,cn=example.com,cn=gssapi,cn=auth" "cn=$1,ou=hosts,dc=example,dc=com" A HOWTO at https://help.ubuntu.com/community/OpenLDAPServer#Kerberos_Authentication mentiones vaguely: Also, it is frequently necessary to map the Distinguished Name (DN) of an authorized Kerberos client to an existing entry in the DIT. I fail to understand where in the tree this should be defined, what schema should be used, etc. After hours of googling, it's official: I'm stuck! Please, help. Other things checked: Kerberos as such works fine (I can ssh without using a password to any machine in this setup). That means there should be no DNS-related problems. ldapsearch -b 'dc=example,dc=com' -x works OK. SASL/GSSAPI has been tested using sasl-sample-server -m GSSAPI -s ldap and sasl-sample-client -s ldap -n ldap.example.com -u tom without errors: root@ldap:~# sasl-sample-server -m GSSAPI -s ldap Forcing use of mechanism GSSAPI Sending list of 1 mechanism(s) S: R1NTQVBJ Waiting for client mechanism... C: R1NTQVBJAGCCAmUGCSqGSIb3EgECAgEAboICVDCCAlCgAwIBBaEDAgEOogcDBQAgAAAAo4IBamGCAWYwggFioAMCAQWhDRsLRVhBTVBMRS5DT02iIzAhoAMCAQOhGjAYGwRsZGFwGxBsZGFwLmV4YW1wbGUuY29to4IBJTCCASGgAwIBEqEDAgECooIBEwSCAQ8Re8XUnscB8dx6V/cXL+uzSF2/olZvcrVAJHZBZrfRKUFEQmU1Li46bUGK3GZwsn6qUVwmW6lyqVctOIYwGvBpz81Rw/5mj4V5iQudZbIRa+5Ew6W1oBB7ALi2cnPsbUroqzGmEh8/Vw8zSFk7W1gND4DLuWrPXD2xhLDUMMekBn5nXEPTnNAnV4w81Sj3ZlyLZz5OSitGVUEnQweV53z1spWsASHHWod/tSuxb19YeWmY5QHXPLG+lL5+w+Cykr0EhYVj8f8MDWFB8qoN1cr85xDfn18r8JldSw+i18nFKOo8usG+37hZTWynHYvBfMONtG9mLJv82KGPZMydWK7pzyTZDcnSsIjo2AftMZd5pIHMMIHJoAMCARKigcEEgb5aG1k4xgxmUXX7RKfvAbVBVJ12dWOgFFjMYceKjziXwrrOkv8ZwIvef9Yn2KsWznb5L55SXt2c/zlPa5mLKIktvw77hsK1h/GYc7p//BGOsmr47aCqVWsGuTqVT129uo5LNQDeSFwl2jXCkCZJZavOVrqYsM6flrPYE4n5lASTcPitX+/WNsf6WrvZoaexiv1JqyM/MWqS/vMBRMMc5xlurj6OARFvP9aFZoK/BLmfkSyAJj6MLbLVXZtkHiIPgot 'GSSAPI' Sending response... S: YIGZBgkqhkiG9xIBAgICAG+BiTCBhqADAgEFoQMCAQ+iejB4oAMCARKicQRvkxggi9pW+yJ1ExbTwLDclqw/VQ98aPq8mt39hkO6PPfcO2cB+t6vJ01xRKBrT9D2qF2XK0SWD4PQNb5UFbH4RM/bKAxDuCfZ1MHKgIWTLu4bK7VGZTbYydcckU2d910jIdvkkHhaRqUEM4cqp/cR Waiting for client reply... C: got '' Sending response... S: BQQF/wAMAAAAAAAAMBOWqQcACAAlCodrXW66ZObsEd4= Waiting for client reply... C: BQQE/wAMAAAAAAAAFUYbXQQACAB0b20VynB4uGH/iIzoRhw=got '?' Negotiation complete Username: tom Realm: (NULL) SSF: 56 sending encrypted message 'srv message 1' S: AAAASgUEB/8AAAAAAAAAADATlqrqrBW0NRfPMXMdMz+zqY32YakrHqFps3o/vO6yDeyPSaSqprrhI+t7owk7iOsbrZ/idJRxCBm8Wazx Waiting for encrypted message... C: AAAATQUEBv8AAAAAAAAAABVGG17WC1+/kIV9xTMUdq6Y4qYmmTahHVCjidgGchTOOOrBLEwA9IqiTCdRFPVbK1EgJ34P/vxMQpV1v4WZpcztgot '' recieved decoded message 'client message 1' root@ldap:~# sasl-sample-client -s ldap -n ldap.example.com -u tom service=ldap Waiting for mechanism list from server... S: R1NTQVBJrecieved 6 byte message Choosing best mechanism from: GSSAPI returning OK: tom Using mechanism GSSAPI Preparing initial. Sending initial response... C: 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 Waiting for server reply... S: YIGZBgkqhkiG9xIBAgICAG+BiTCBhqADAgEFoQMCAQ+iejB4oAMCARKicQRvkxggi9pW+yJ1ExbTwLDclqw/VQ98aPq8mt39hkO6PPfcO2cB+t6vJ01xRKBrT9D2qF2XK0SWD4PQNb5UFbH4RM/bKAxDuCfZ1MHKgIWTLu4bK7VGZTbYydcckU2d910jIdvkkHhaRqUEM4cqp/cRrecieved 156 byte message C: Waiting for server reply... S: BQQF/wAMAAAAAAAAMBOWqQcACAAlCodrXW66ZObsEd4=recieved 32 byte message Sending response... C: BQQE/wAMAAAAAAAAFUYbXQQACAB0b20VynB4uGH/iIzoRhw= Negotiation complete Username: tom SSF: 56 Waiting for encoded message... S: AAAASgUEB/8AAAAAAAAAADATlqrqrBW0NRfPMXMdMz+zqY32YakrHqFps3o/vO6yDeyPSaSqprrhI+t7owk7iOsbrZ/idJRxCBm8Wazxrecieved 78 byte message recieved decoded message 'srv message 1' sending encrypted message 'client message 1' C: AAAATQUEBv8AAAAAAAAAABVGG17WC1+/kIV9xTMUdq6Y4qYmmTahHVCjidgGchTOOOrBLEwA9IqiTCdRFPVbK1EgJ34P/vxMQpV1v4WZpczt

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• Postfix certificate verification failed for smtp.gmail.com

  - by Andi Unpam

  I have problem, my email server using postfix with gmail smtp, i use account google apps, but always ask for SASL authentication failed, I sent an email using php script, after I see the error logs in the wrong password, after I open the URL from the browser and no verification postfixnya captcha and could return, but after 2-3 days later happen like that again. This my config postfix #myorigin = /etc/mailname smtpd_banner = Hostingbitnet Mail Server biff = no append_dot_mydomain = no readme_directory = no myhostname = webmaster.hostingbitnet.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = localhost, webmaster.hostingbitnet.com, localhost.localdomain, 103.9.126.163 relayhost = [smtp.googlemail.com]:587 relay_transport = relay relay_destination_concurrency_limit = 1 mynetworks = 127.0.0.0/8, 192.168.0.0/16, 172.16.0.0/16, 10.0.0.0/8, 103.9.126.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all default_transport = smtp relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/google-apps smtp_sasl_security_options = noanonymous smtp_use_tls = yes smtp_sender_dependent_authentication = yes tls_random_source = dev:/dev/urandom default_destination_concurrency_limit = 1 smtp_tls_CAfile = /etc/postfix/tls/root.crt smtp_tls_cert_file = /etc/postfix/tls/cert.pem smtp_tls_key_file = /etc/postfix/tls/privatekey.pem smtp_tls_session_cache_database = btree:$data_directory/smtp_tls_session_cache smtp_tls_security_level = may smtp_tls_loglevel = 1 smtpd_tls_CAfile = /etc/postfix/tls/root.crt smtpd_tls_cert_file = /etc/postfix/tls/cert.pem smtpd_tls_key_file = /etc/postfix/tls/privatekey.pem smtpd_tls_session_cache_database = btree:$data_directory/smtpd_tls_session_cache smtpd_tls_security_level = may smtpd_tls_loglevel = 1 #secure smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,check_client_access hash:/var/lib/pop-before-smtp/hosts,reject_unauth_destination Log from mail.log Oct 30 14:51:13 webmaster postfix/smtp[9506]: Untrusted TLS connection established to smtp.gmail.com[74.125.25.109]:587: TLSv1 with cipher RC4-SHA (128/128 bits) Oct 30 14:51:15 webmaster postfix/smtp[9506]: 87E2739400B1: SASL authentication failed; server smtp.gmail.com[74.125.25.109] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 ix9sm156630pbc.7 Oct 30 14:51:15 webmaster postfix/smtp[9506]: setting up TLS connection to smtp.gmail.com[74.125.25.108]:587 Oct 30 14:51:15 webmaster postfix/smtp[9506]: certificate verification failed for smtp.gmail.com[74.125.25.108]:587: untrusted issuer /C=US/O=Equifax/OU=Equifax Secure Certificate Authority Oct 30 14:51:16 webmaster postfix/smtp[9506]: Untrusted TLS connection established to smtp.gmail.com[74.125.25.108]:587: TLSv1 with cipher RC4-SHA (128/128 bits) Oct 30 14:51:17 webmaster postfix/smtp[9506]: 87E2739400B1: to=<[email protected]>, relay=smtp.gmail.com[74.125.25.108]:587, delay=972, delays=967/0.03/5.5/0, dsn=4.7.1, status=deferred (SASL authentication failed; server smtp.gmail.com[74.125.25.108] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 s1sm3850paz.0) Oct 30 14:51:17 webmaster postfix/error[9508]: B3960394009D: to=<[email protected]>, orig_to=<root>, relay=none, delay=29992, delays=29986/5.6/0/0.07, dsn=4.7.1, status=deferred (delivery temporarily suspended: SASL authentication failed; server smtp.gmail.com[74.125.25.108] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 s1sm3850paz.0) BTW I made cert follow the link here http://koti.kapsi.fi/ptk/postfix/postfix-tls-cacert.shtml and it worked, but after 2/3 days my email back to problem invalid SASL, and then i'm required to log in use a browser and enter the captcha there but success log in after input captcha, and my email server can send emails from telnet or php script. but it will be back in trouble after 2/3days later. My question is how to make it permanent certificate? Thanks n greeting.

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• Ubuntu 10.04: OpenVZ Kernel and pure-ftpd issues on HOST (no guest setup yet)

  - by Seidr

  After compiling and installing the OpenVZ flavour of kernel under Ubuntu 10.04, I am unable to browse to certain directories when connecting to the pure-ftpd server. The clients are dropping into PASSIVE mode, which is fine. This behaviour was happening before the change of kernel, however now when I browse to certain directories the connection just gets dropped. This only happens with a few directories under one login (web in specific), where as with another login it happens as soon as I connect. I've got the nf_conntrack_ftp kernel module installed (required to keep track of passive FTP connections as I understand, and an alias of the ip_conntrack_ftp module), however this has provided no alleviation of my problem. This module was actually required upon initial setup of my OS to get passive FTP working correctly, however when I compiled the OpenVZ kernel a lot of these modules were missing (iptables, conntrack etc). I recompiled the kernel with the missing modules, but to no effect. I've turned verbosity for the pure-ftpd server up, and still no clues have been spotted in either syslog or the transfer log. Neither did an strace provide any clues (that I could discern anyway) - although one strange thing is both in the output to the client and in the strace I notice that it does infact probe the directory and return the number of matches - it just fails after that. One more thing to mention is that if I FTP using the same credentials locally, everything works fine. This suggests that it is in fact an issue with either the conntrack_ftp module not functioning as expected, or a deeper networking issue. The Kernel was compiled and installed following the instructions at https://help.ubuntu.com/community/OpenVZ - bar the changes to the Kernel configuration (such as add iptables as a module). Below is an example of the log sent to the data (under FileZilla). Status: Resolving address of xxxx.co.uk Status: Connecting to 78.46.xxx.xxx:21... Status: Connection established, waiting for welcome message... Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- Response: 220-You are user number 4 of 10 allowed. Response: 220-Local time is now 08:52. Server port: 21. Response: 220-This is a private system - No anonymous login Response: 220-IPv6 connections are also welcome on this server. Response: 220 You will be disconnected after 15 minutes of inactivity. Command: USER xxx Response: 331 User xxx OK. Password required Command: PASS ******** Response: 230-User xxx has group access to: client1 sshusers Response: 230 OK. Current restricted directory is / Command: OPTS UTF8 ON Response: 200 OK, UTF-8 enabled Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is your current location Status: Directory listing successful Status: Retrieving directory listing... Command: CWD /web Response: 250 OK. Current directory is /web Command: TYPE I Response: 200 TYPE is now 8-bit binary Command: PORT 10,0,2,30,14,143 Response: 500 I won't open a connection to 10.0.2.30 (only to 188.220.xxx.xxx) Command: PASV Response: 227 Entering Passive Mode (78,46,79,147,234,110) Command: MLSD Response: 150 Accepted data connection Response: 226-ASCII Response: 226-Options: -a -l Response: 226 57 matches total Error: Could not read from transfer socket: ECONNRESET - Connection reset by peer Error: Failed to retrieve directory listing Any suggestions please? I'm willing to try anything!

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• Auth-Type :- Reject in RADIUS users file matches inner tunnel request but sends Access-Accept

  - by mgorven

  I have WPA2 802.11x EAP authentication setup using FreeRADIUS 2.1.8 on Ubuntu 10.04.4 talking to OpenLDAP, and can successfully authenticate using PEAP/MSCHAPv2, TTLS/MSCHAPv2 and TTLS/PAP (both via the AP and using eapol_test). I am now trying to restrict access to specific SSIDs based on the LDAP groups which the user belongs to. I have configured group membership checking in /etc/freeradius/modules/ldap like so: groupname_attribute = cn groupmembership_filter = "(|(&(objectClass=posixGroup)(memberUid=%{User-Name}))(&(objectClass=posixGroup)(uniquemember=%{User-Name})))" and I have configured extraction of the SSID from Called-Station-Id into Called-Station-SSID based on the Mac Auth wiki page. In /etc/freeradius/eap.conf I have enabled copying attributes from the outer tunnel into the inner tunnel, and usage of the inner tunnel response in the outer tunnel (for both PEAP and TTLS). I had the same behaviour before changing these options however. copy_request_to_tunnel = yes use_tunneled_reply = yes I'm running eapol_test like this to test the setup: eapol_test -c peap-mschapv2.conf -a 172.16.0.16 -s testing123 -N 30:s:01-23-45-67-89-01:Example-EAP with the following peap-mschapv2.conf file: network={ ssid="Example-EAP" key_mgmt=WPA-EAP eap=PEAP identity="mgorven" anonymous_identity="anonymous" password="foobar" phase2="autheap=MSCHAPV2" } With the following in /etc/freeradius/users: DEFAULT Ldap-Group == "employees" and running freeradius-Xx, I can see that the LDAP group retrieval works, and that the SSID is extracted. Debug: [ldap] performing search in dc=example,dc=com, with filter (&(cn=employees)(|(&(objectClass=posixGroup)(memberUid=mgorven))(&(objectClass=posixGroup)(uniquemember=mgorven)))) Debug: rlm_ldap::ldap_groupcmp: User found in group employees ... Info: expand: %{7} -> Example-EAP Next I try to only allow access to users in the employees group (regardless of SSID), so I put the following in /etc/freeradius/users: DEFAULT Ldap-Group == "employees" DEFAULT Auth-Type := Reject But this immediately rejects the Access-Request in the outer tunnel because the anonymous user is not in the employees group. So I modify it to only match inner tunnel requests like so: DEFAULT Ldap-Group == "employees" DEFAULT FreeRADIUS-Proxied-To == "127.0.0.1" Auth-Type := Reject, Reply-Message = "User does not belong to any groups which may access this SSID." Now users which are in the employees group are authenticated, but so are users which are not in the employees group. I see the reject entry being matched, and the Reply-Message is set, but the client receives an Access-Accept. Debug: rlm_ldap::ldap_groupcmp: Group employees not found or user is not a member. Info: [files] users: Matched entry DEFAULT at line 209 Info: ++[files] returns ok ... Auth: Login OK: [mgorven] (from client test port 0 cli 02-00-00-00-00-01 via TLS tunnel) Info: WARNING: Empty section. Using default return values. ... Info: [peap] Got tunneled reply code 2 Auth-Type := Reject Reply-Message = "User does not belong to any groups which may access this SSID." ... Info: [peap] Got tunneled reply RADIUS code 2 Auth-Type := Reject Reply-Message = "User does not belong to any groups which may access this SSID." ... Info: [peap] Tunneled authentication was successful. Info: [peap] SUCCESS Info: [peap] Saving tunneled attributes for later ... Sending Access-Accept of id 11 to 172.16.2.44 port 60746 Reply-Message = "User does not belong to any groups which may access this SSID." User-Name = "mgorven" and eapol_test reports: RADIUS message: code=2 (Access-Accept) identifier=11 length=233 Attribute 18 (Reply-Message) length=64 Value: 'User does not belong to any groups which may access this SSID.' Attribute 1 (User-Name) length=9 Value: 'mgorven' ... SUCCESS Why isn't the request being rejected, and is this the right way to implement this?

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• IIS 7.5 on Windows Server 2008 R2 refusing to create PASSIVE MODE FTP connections

  - by Campbell

  I'm attempting to get an FTP client written in perl to transfer files from an IIS 7.5 FTP server using passive mode. I've configured the FTP server as per instructions and have also configured Windows Firewall to allow this type of traffic. I have validated that the firewall is behaviong correctly by checking to ensure there are no blocked packets in the logs. I have verified the that FTP control channel is being opened on Port 21. I believe the client is being told by IIS which port to connect on for passive mode and IIS is refusing to allow this connection. The perl log looks like: C:\cygwin\Perl\lib\FMT>perl FTPTest.pl Net::FTP>>> Net::FTP(2.77) Net::FTP>>> Exporter(5.64_01) Net::FTP>>> Net::Cmd(2.29) Net::FTP>>> IO::Socket::INET(1.31) Net::FTP>>> IO::Socket(1.31) Net::FTP>>> IO::Handle(1.28) Net::FTP=GLOB(0x20abac0)<<< 220 Microsoft FTP Service Net::FTP=GLOB(0x20abac0)>>> USER ftpuser Net::FTP=GLOB(0x20abac0)<<< 331 Password required for ftpuser. Net::FTP=GLOB(0x20abac0)>>> PASS .... Net::FTP=GLOB(0x20abac0)<<< 230 User logged in. Net::FTP=GLOB(0x20abac0)>>> CWD /Logs Net::FTP=GLOB(0x20abac0)<<< 250 CWD command successful. Net::FTP=GLOB(0x20abac0)>>> PASV Net::FTP=GLOB(0x20abac0)<<< 227 Entering Passive Mode (xx,xxx,xxx,xxx,160,41). Net::FTP=GLOB(0x20abac0)>>> RETR filename.txt Can't use an undefined value as a symbol reference at C:/Utilities/strawberryper l/perl/lib/Net/FTP/dataconn.pm line 54. IIS logs look as follows: 2010-10-02 17:40:06 xx.xxx.xx.xx - yy.y.yy.yy ControlChannelOpened - - 0 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a - - 2010-10-02 17:40:06 xx.xxx.xx.xx - yy.y.yy.yy USER ftpuser 331 0 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a - - 2010-10-02 17:40:06 xx.xxx.xx.xx MACHINENAME\ftpuser yy.y.yy.yy PASS *** 230 0 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a / - 2010-10-02 17:40:06 xx.xxx.xx.xx MACHINENAME\ftpuser yy.y.yy.yy CWD /Logs 250 0 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a /Logs - 2010-10-02 17:40:06 xx.xxx.xx.xx MACHINENAME\ftpuser yy.y.yy.yy PASV - 227 0 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a - - 2010-10-02 17:40:27 - MACHINENAME\ftpuser zz.z.zz.zzz 41001 DataChannelClosed - - 64 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a - - 2010-10-02 17:40:27 xx.xxx.xx.xx MACHINENAME\ftpuser yy.y.yy.yy ControlChannelClosed - - 64 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a - - 2010-10-02 17:40:27 xx.xxx.xx.xx MACHINENAME\ftpuser yy.y.yy.yy RETR filename.txt 550 1236 0 27a48c9b-9dce-4770-8bcf-fc89f2569b1a filename.txt - We've managed to see this issue with other FTP clients also, I don't think its something funny in Perl. I've been informed that this works fine in the IIS 6 FTP server. I'm wondering if there is something we're missing here.

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• VPN in Ubuntu fails every time

  - by fazpas

  I am trying to setup a vpn connection in Ubuntu 10.04 to use the service from relakks.com I used the network manager to add the vpn connection and the settings are: Gateway: pptp.relakks.com Username: user Password: pwd IPv4 Settings: Automatic (VPN) Advanced: MSCHAP & MSCHAPv2 checked Use point-to-point encryption (security:default) Allow BSD data compression checked Allow deflate data compression checked Use TCP header compression checked The connection always fail, here is the syslog: Jun 27 20:11:56 desktop NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'... Jun 27 20:11:56 desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started (org.freedesktop.NetworkManager.pptp), PID 2064 Jun 27 20:11:56 desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' just appeared, activating connections Jun 27 20:11:56 desktop NetworkManager: <info> VPN plugin state changed: 3 Jun 27 20:11:56 desktop NetworkManager: <info> VPN connection 'Relakks' (Connect) reply received. Jun 27 20:11:56 desktop pppd[2067]: Plugin /usr/lib/pppd/2.4.5//nm-pptp-pppd-plugin.so loaded. Jun 27 20:11:56 desktop pppd[2067]: pppd 2.4.5 started by root, uid 0 Jun 27 20:11:56 desktop NetworkManager: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp1, iface: ppp1) Jun 27 20:11:56 desktop NetworkManager: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp1, iface: ppp1): no ifupdown configuration found. Jun 27 20:11:56 desktop pppd[2067]: Using interface ppp1 Jun 27 20:11:56 desktop pppd[2067]: Connect: ppp1 <--> /dev/pts/0 Jun 27 20:11:56 desktop pptp[2071]: nm-pptp-service-2064 log[main:pptp.c:314]: The synchronous pptp option is NOT activated Jun 27 20:11:57 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request' Jun 27 20:11:58 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply Jun 27 20:11:58 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established. Jun 27 20:11:58 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request' Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply. Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 1024). Jun 27 20:11:59 desktop kernel: [ 56.564074] Inbound IN=ppp0 OUT= MAC= SRC=93.182.139.2 DST=186.110.76.26 LEN=61 TOS=0x00 PREC=0x00 TTL=52 ID=40460 DF PROTO=47 Jun 27 20:11:59 desktop kernel: [ 56.944054] Inbound IN=ppp0 OUT= MAC= SRC=93.182.139.2 DST=186.110.76.26 LEN=60 TOS=0x00 PREC=0x00 TTL=52 ID=40461 DF PROTO=47 Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[pptp_read_some:pptp_ctrl.c:544]: read returned zero, peer has closed Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown) Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request' Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[pptp_read_some:pptp_ctrl.c:544]: read returned zero, peer has closed Jun 27 20:11:59 desktop pptp[2079]: nm-pptp-service-2064 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state) Jun 27 20:11:59 desktop pppd[2067]: Modem hangup Jun 27 20:11:59 desktop pppd[2067]: Connection terminated. Jun 27 20:11:59 desktop NetworkManager: <info> VPN plugin failed: 1 Jun 27 20:11:59 desktop NetworkManager: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp1, iface: ppp1) Jun 27 20:11:59 desktop pppd[2067]: Exit. Does someone can identify something in the syslog? I've been googling and reading about pptp but couldn't find anything about the error "read returned zero, peer has closed"

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• Postfix sasl login failing no mechanism found

  - by Nat45928

  following the link here: http://flurdy.com/docs/postfix/ with posfix, courier, MySql, and sasl gave me a web server that has imap functionality working fine but when i go to log into the server to send a message using the same user id and password for connecting the the imap server it rejects my login to the smtp server. If i do not specify a login for the outgoing mail server then it will send the message just fine. the error in postfix's log is: Jul 6 17:26:10 Sj-Linux postfix/smtpd[19139]: connect from unknown[10.0.0.50] Jul 6 17:26:10 Sj-Linux postfix/smtpd[19139]: warning: SASL authentication failure: unable to canonify user and get auxprops Jul 6 17:26:10 Sj-Linux postfix/smtpd[19139]: warning: unknown[10.0.0.50]: SASL DIGEST-MD5 authentication failed: no mechanism available Jul 6 17:26:10 Sj-Linux postfix/smtpd[19139]: warning: unknown[10.0.0.50]: SASL LOGIN authentication failed: no mechanism available Ive checked all usernames and passwords for mysql. what could be going wrong? edit: here is some other information: installed libraires for postfix, courier and sasl: aptitude install postfix postfix-mysql aptitude install libsasl2-modules libsasl2-modules-sql libgsasl7 libauthen-sasl-cyrus-perl sasl2-bin libpam-mysql aptitude install courier-base courier-authdaemon courier-authlib-mysql courier-imap courier-imap-ssl courier-ssl and here is my /etc/postfix/main.cf myorigin = domain.com smtpd_banner = $myhostname ESMTP $mail_name biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. #myhostname = my hostname alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname local_recipient_maps = mydestination = relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all mynetworks_style = host # how long if undelivered before sending warning update to sender delay_warning_time = 4h # will it be a permanent error or temporary unknown_local_recipient_reject_code = 450 # how long to keep message on queue before return as failed. # some have 3 days, I have 16 days as I am backup server for some people # whom go on holiday with their server switched off. maximal_queue_lifetime = 7d # max and min time in seconds between retries if connection failed minimal_backoff_time = 1000s maximal_backoff_time = 8000s # how long to wait when servers connect before receiving rest of data smtp_helo_timeout = 60s # how many address can be used in one message. # effective stopper to mass spammers, accidental copy in whole address list # but may restrict intentional mail shots. # but may restrict intentional mail shots. smtpd_recipient_limit = 16 # how many error before back off. smtpd_soft_error_limit = 3 # how many max errors before blocking it. smtpd_hard_error_limit = 12 # Requirements for the HELO statement smtpd_helo_restrictions = permit_mynetworks, permit # Requirements for the sender details smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit # Requirements for the connecting server smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.njabl.org # Requirement for the recipient address smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, permit smtpd_data_restrictions = reject_unauth_pipelining # require proper helo at connections smtpd_helo_required = yes # waste spammers time before rejecting them smtpd_delay_reject = yes disable_vrfy_command = yes # not sure of the difference of the next two # but they are needed for local aliasing alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/virtual # this is for the mailbox location for each user virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf # and this is for aliases virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf # and this is for domain lookups virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf # this is how to connect to the domains (all virtual, but the option is there) # not used yet # transport_maps = mysql:/etc/postfix/mysql_transport.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 # SASL smtpd_sasl_auth_enable = yes # If your potential clients use Outlook Express or other older clients # this needs to be set to yes broken_sasl_auth_clients = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain =

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• Single-Signon options for Exchange 2010

  - by freiheit

  We're working on a project to migrate employee email from Unix/open-source (courier IMAP, exim, squirrelmail, etc) to Exchange 2010, and trying to figure out options for single-signon for Outlook Web Access. So far all the options I've found are very ugly and "unsupportable", and may simply not work with Forefront. We already have JA-SIG CAS for token-based single-signon and Shibboleth for SAML. Users are directed to a simple in-house portal (a Perl CGI, really) that they use to sign in to most stuff. We have an HA OpenLDAP cluster that's already synchronized against another AD domain and will be synchronized with the AD domain Exchange will be using. CAS authenticates against LDAP. The portal authenticates against CAS. Shibboleth authenticates with CAS but pulls additional data from LDAP. We're moving in the direction of having web services authenticate against CAS or Shibboleth. (Students are already on SAML/Shibboleth authenticated Google Apps for Education) With Squirrelmail we have a horrible hack linked to from that portal page that authenticates against CAS, gets your original plaintext password (yes, I know, evil), and gives you an HTTP form pre-filled with all the necessary squirrelmail login details with javaScript onLoad stuff to immediately submit the form. Trying to find out exactly what is possible with Exchange/OWA seems to be difficult. "CAS" is both the acronym for our single-signon server and an Exchange component. From what I've been able to tell there's an addon for Exchange that does SAML, but only for federating things like free/busy calendar info, not authenticating users. Plus it costs additional money so there's no way to experiment with it to see if it can be coaxed into doing what we want. Our plans for the Exchange cluster involve Forefront Threat Management Gateway (the new ISA) in the DMZ front-ending the CAS servers. So, the real question: Has anybody managed to make Exchange authenticate with CAS (token-based single-signon) or SAML, or with something I can reasonably likely make authenticate with one of those (such as anything that will accept apache's authentication)? With Forefront? Failing that, anybody have some tips on convincing OWA Forms Based Authentication (FBA) into letting us somehow "pre-login" the user? (log in as them and pass back cookies to the user, or giving the user a pre-filled form that autosubmits like we do with squirrelmail). This is the least-favorite option for a number of reasons, but it would (just barely) satisfy our requirements. From what I hear from the guy implementing Forefront, we may have to set OWA to basic authentication and do forms in Forefront for authentication, so it's possible this isn't even possible. I did find CasOwa, but it only mentions Exchange 2007, looks kinda scary, and as near as I can tell is mostly the same OWA FBA hack I was considering slightly more integrated with the CAS server. It also didn't look like many people had had much success with it. And it may not work with Forefront. There's also "CASifying Outlook Web Access 2", but that one scares me, too, and involves setting up a complex proxy config, which seems more likely to break. And, again, doesn't look like it would work with Forefront. Am I missing something with Exchange SAML (OWA Federated whatchamacallit) where it is possible to configure to do user authentication and not just free/busy access authorization?

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• Cannot connect to MySQL Server on RHEL 5.7

  - by Jeffrey Wong

  I have a standard MySQL Server running on Red hat 5.7. I have edited /etc/my.cnf to specify the bind address as my server's public IP address. [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Default to using old password format for compatibility with mysql 3.x # clients (those using the mysqlclient10 compatibility package). old_passwords=1 # Disabling symbolic-links is recommended to prevent assorted security risks ; # to do so, uncomment this line: # symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid bind-address=171.67.88.25 port=3306 And I have also restarted my firewall sudo /sbin/iptables -A INPUT -i eth0 -p tcp --destination-port 3306 -j ACCEPT /sbin/service iptables save The network administrator has already opened port 3306 for this box. When connecting from a remote computer (running Ubuntu 10.10, server is running RHEL 5.7), I issue mysql -u jeffrey -p --host=171.67.88.25 --port=3306 --socket=/var/lib/mysql/mysql.sock but receive a ERROR 2003 (HY000): Can't connect to MySQL server on '171.67.88.25' (113). I've noticed that the socket file /var/lib/mysql/mysql.sock is blank. Should this be the case? UPDATE The result of netstat -an | grep 3306 tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN Result of sudo netstat -tulpen Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name tcp 0 0 127.0.0.1:2208 0.0.0.0:* LISTEN 0 7602 3168/hpiod tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 27 7827 3298/mysqld tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 0 5110 2802/portmap tcp 0 0 0.0.0.0:8787 0.0.0.0:* LISTEN 0 8431 3326/rserver tcp 0 0 0.0.0.0:915 0.0.0.0:* LISTEN 0 5312 2853/rpc.statd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 0 7655 3188/sshd tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 0 7688 3199/cupsd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 0 8025 3362/sendmail: acce tcp 0 0 127.0.0.1:2207 0.0.0.0:* LISTEN 0 7620 3173/python udp 0 0 0.0.0.0:909 0.0.0.0:* 0 5300 2853/rpc.statd udp 0 0 0.0.0.0:912 0.0.0.0:* 0 5309 2853/rpc.statd udp 0 0 0.0.0.0:68 0.0.0.0:* 0 4800 2598/dhclient udp 0 0 0.0.0.0:36177 0.0.0.0:* 70 8314 3476/avahi-daemon: udp 0 0 0.0.0.0:5353 0.0.0.0:* 70 8313 3476/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 0 5109 2802/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 0 7691 3199/cupsd Result of sudo /sbin/iptables -L -v -n Chain INPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 6373 2110K RH-Firewall-1-INPUT all -- * * 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 RH-Firewall-1-INPUT all -- * * 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT 1241 packets, 932K bytes) pkts bytes target prot opt in out source destination Chain RH-Firewall-1-INPUT (2 references) pkts bytes target prot opt in out source destination 572 861K ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 1 28 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmp type 255 0 0 ACCEPT esp -- * * 0.0.0.0/0 0.0.0.0/0 0 0 ACCEPT ah -- * * 0.0.0.0/0 0.0.0.0/0 46 6457 ACCEPT udp -- * * 0.0.0.0/0 224.0.0.251 udp dpt:5353 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:631 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:631 782 157K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 120 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:443 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:23 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80 4970 1086K REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Result of nmap -P0 -p3306 171.67.88.25 Host is up (0.027s latency). PORT STATE SERVICE 3306/tcp filtered mysql Nmap done: 1 IP address (1 host up) scanned in 0.09 seconds Solution When everything else fails, go GUI! system-config-securitylevel and add port 3306. All done!

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• Home ADSL Modem Dropping Packets?

  - by Cody

  I know this is supposed to be a "pro" forum, but I'm hoping someone can help since my ISP isn't doing much to try and fix things. My ISP has given me a DSL modem / Router combo - a ADB / Pirelli P.DG A2100N and I have a 4096 / 767 kbps connection. I use it purely as modem and router, and have the wireless AP feature turned off. I run it to a Ubiquiti Networks Toughswitch and use a Ubiquiti UAP as the wireless access point - although I've ran tests directly wired to the router with nothing else connected, and still see the same issues. I've been having issues where latency suddenly spikes from 8ms to google.com to 250+ if someone does anything on the internet. If I run a speedtest or something, I can see latencies above 3000ms. Regularly when downloading something, even if the speed is throttled to , it can get random drops to 0kbps every few seconds. Online gaming is impossible because I notice the sudden lag-outs in the connection, and video streams or VoIP drop out as well - it's not at all consistent. I managed to find the password to my modem and I don't think I see anything wrong with the settings - but I looked for the logs and found this: Jun 6 17:10:30 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:30 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:31 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: __ratelimit: 63 callbacks suppressed Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:10:40 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:22 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:23 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:24 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:24 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:24 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:24 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:24 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:25 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:25 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:25 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:29 user warn kernel: __ratelimit: 15 callbacks suppressed Jun 6 17:11:29 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:29 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:30 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:11:30 user warn kernel: nf_conntrack: table full, dropping packet. Jun 6 17:55:26 user warn kernel: bcmxtmcfg: OAM loopback response not received on VCC 1.1.3 Jun 6 17:55:27 user warn kernel: bcmxtmcfg: OAM loopback response not received on VCC 1.1.4 So, as I understand it, it appears the router is dropping packets? If that's the case, is there anything in the config that I can change? Or should I buy a new router, a new modem, or both?

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• problem in run oracle server please help

  - by rima

  I used Oracle 11g, from few days ago I face below error: SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 7 07:33:19 2011 Copyright (c) 1982, 2010, Oracle. All rights reserved. Enter user-name: pentacms Enter password: ERROR: ORA-01033: ORACLE initialization or shutdown in progress Process ID: 0 Session ID: 0 Serial number: 0 Enter user-name: I try to solve the error, but it raised an other error, I try to open log file but I receive below error(last line) "ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] " please advice me, It's an emergency case. FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SYS$USERS DISABLED FALSE SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- FALSE FIRST EXEC 0 000007FF5D4D8D70 2 SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- 16 rows selected. SQL> desc dba_user; ERROR: ORA-04043: object dba_user does not exist SQL> desc dba_users; ERROR: ORA-04043: object dba_users does not exist SQL> desc v$user; ERROR: ORA-04043: object v$user does not exist SQL> desc v$users ERROR: ORA-04043: object v$users does not exist SQL> seleect * from dba_users; SP2-0734: unknown command beginning "seleect * ..." - rest of line ignored. SQL> select * from dba_users; select * from dba_users * ERROR at line 1: ORA-01219: database not open: queries allowed on fixed tables/views only SQL> alter database open; alter database open * ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] SQL> alter database mount; alter database mount * ERROR at line 1: ORA-01100: database already mounted SQL> alter database mount;

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• overriding new ubuntu installation

  - by tkoomzaaskz

  I've got a ubuntu 11.10 which has lost its support in May 2013, now I'd like to reintall up to the most up-to-date LTS, which is 12.04. My question is regarding my current partitions and doing backups. Is there a safe way to backup my data on some local partitions instead of copying files into DVDs/external drives (this is very uncormortable in my situation). Following are system commands shoing my disk: $ lsblk NAME MAJ:MIN RM SIZE RO MOUNTPOINT sda 8:0 0 232,9G 0 +-sda1 8:1 0 48,8G 0 +-sda2 8:2 0 63G 0 +-sda3 8:3 0 1K 0 +-sda4 8:4 0 53,7G 0 / +-sda5 8:5 0 18,6G 0 +-sda6 8:6 0 25,5G 0 +-sda7 8:7 0 23,3G 0 [SWAP] sr0 11:0 1 1024M 0 and $ sudo fdisk -l [sudo] password for xyz: Disk /dev/sda: 250.1 GB, 250059350016 bytes glowic: 255, sektorów/sciezke: 63, cylindrów: 30401, w sumie sektorów: 488397168 Jednostka = sektorów, czyli 1 * 512 = 512 bajtów Rozmiar sektora (logiczny/fizyczny) w bajtach: 512 / 512 Rozmiar we/wy (minimalny/optymalny) w bajtach: 512 / 512 Identyfikator dysku: 0xc3ffc3ff Device Boot Beginning End Blocks ID System /dev/sda1 * 2048 102402047 51200000 7 HPFS/NTFS/exFAT /dev/sda2 215044096 347080703 66018304 7 HPFS/NTFS/exFAT /dev/sda3 347082750 488392064 70654657+ 5 Extended /dev/sda4 102402048 215042047 56320000 83 Linux /dev/sda5 395905923 434975939 19535008+ 83 Linux /dev/sda6 434976003 488392064 26708031 83 Linux /dev/sda7 347082752 395905023 24411136 82 Linux swap / Solaris In the beginning I had Windows Vista pre-installed with the machine when it was bought (damn!) and I installed linux (the one I have now). The windows-program in master boot record has been overriden by grub and now I can boot with both Windows and Linux. This is list of mounted devices: $ mount /dev/sda4 on / type ext4 (rw,errors=remount-ro,commit=0) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/tomasz/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=tomasz) It's strange (I don't remember such thing) that my current linux uses only one partition (/dev/sda4). But, anyway, it seems like that. My final question is: am I able to use one of the existing linux partitions for a backup and install ubuntu 12.04 without removing neither windows nor ubuntu 11.04? I mean - will grub automatically accept both old windows vista and 2 linuxes (old 11.10 and "new" 12.04)? Is there any hidden operation done while installation that could harm my custom-backup-partition while installing? my fstab file: proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda4 during installation UUID=d44e89f5-9da2-48eb-83b3-887652ec95d2 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda7 during installation UUID=bbe50535-ba57-434a-9272-211d859f0e00 none swap sw 0 0 sda5 and sda6 are trash partitions created during unsuccessful linux installation (this was linux installation before my current installation), I didn't delete these partitions, but I have access to them (and I can use them as backup partitions). edit: second question is: why does lsblk show /dev/sda having 232,9G while fdisk shows that it has 250.1GB? Where does the difference come from?

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• SBS2003 to SBS2011 Migration - Installation Error

  - by Shawn Gradwell

  Microsoft Small Business Server 2003 to 2011 Migration. I followed the Migration Guide from Microsoft and the source server had no errors when running the various tests prior to the migration. I have completed the destination server setup using the Answer File and the server is up and running. It all looks good, I can access Exchange and AD and the only problem is the error message when you log in stating that the setup did not complete and to check the logs. Because all looks good I am continuing the migration to the destination server. I also have to state that this client does not use Sharepoint at all. Do I have to redo everything? Herewith the logs: [4992] 121016.225454.5905: Task: Starting Add User or Group access VSS registry. [4992] 121016.225454.7645: TaskManagement: In TaskScheduler.RunTasks(): The "ConfigureSharePointVSSRegistryTask" Task threw an Exception during the Run() call:System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) [4992] 121016.225454.7655: Setup: An error was encountered on the TME thread: System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter._RunTasks(Object sender, DoWorkEventArgs e) [4956] 121016.225455.0685: Setup: _UnhandledExceptionHandler: Setup encountered an error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: The TME thread failed (see the inner exception). ---> System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter._RunTasks(Object sender, DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) --- End of inner exception stack trace --- at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter.TasksCompleted(Object sender, RunWorkerCompletedEventArgs e) --- End of inner exception stack trace --- at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Delegate.DynamicInvokeImpl(Object[] args) at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbacks() at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at Microsoft.WindowsServerSolutions.Common.Wizards.Framework.WizardChainEngine.Launch() at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass._LaunchWizard() at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass.RealMain(String[] args) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass.Main(String[] args) [4956] 121016.225455.0865: Setup: Removed the password. [4956] 121016.225455.0905: Setup: Deleting scheduled task at path Microsoft\Windows\Windows Small Business Server 2011 Standard with name Setup [4956] 121016.225455.8055: Setup: Removed SBSSetup from the RunOnce.

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• Accessing resources on localhost using domain credentials

  - by jas

  I'm trying to set up Team Foundation Server 2010, Sharepoint Server 2010 and Report Server 2008R2. I apologize for how long my question/problem is but I'm really lost on where to even look so am being as descriptive as possible in hopes that I'm making sense. The goal: Since developers can be inside or outside the firewall there needs to be a single http point of entry to TFS that works regardless of which side of the firewall you are and needs to work with external access to SharePoint and Report Server. Meaning we have it set up in DNS so buildserver.mydomain.com: points to the build service box which contains all of the services listed at the top of this post and specific services are defined/located by the port number. This is working great on every machine inside and out except for from the build server itself. All services must be able to work using external URLs. If I use http:// buildserver.mydomain.com:4800/tfs (the external URL) from my notebook which is behind the firewall I'm able to login with my domain credentials as expected. If the other developer points to the same URL from their home which isn't on the domain they are also able to login using their domain credentials. However if I am directly on buildserver and call SharePoint, TFS or Reporting Server from (i.e. http:// buildserver.mydomain.com:4800) itself using the external URL, I am prompted for a username and password. Entering my domain credentials results in another prompt to enter my credentials again. It will prompt three times regardless of which credentials are used (I have rights as a domain admin) and then after the third prompt directs me to a blank white page as though access was denied. There are no errors displayed on the page and nothing ends up in the event viewer. From buildserver if i use just the host name (the internal URL), then I'm prompted a single time for credentials and it works. i.e. http:// buildserver:4800/tfs works from the server itself. The behavior is identical for any service requiring authentication. Meaning from the box itself Sharepoint Central Admin, SharePoint WebApp, TFS, TFS Web Access, Report Server and Report Manager all fail using the external URL but will succeed if called using the interal URL. So the problem comes into play when configuring all of the services to work together. The only way to configure TFS is locally from the server which means I must point to the internal reporting server url (http:// buildserver:4800/reports and reportServer respectively instead of http:// buildserver.domainname.com:4800 like they need to be) since external URLs aren't working from itself. If I configure TFS to use the internal URL for Report Server then creating team projects or working in the SharePoint site for the team project fails for anyone not inside the domain since their machines have no idea who http:// buildserver:/reports even is or how to resolve them. I have configured Sharepoint with Alternate Access Mappings as well as set up Report Server to listen for external URLs. The external URLs simply aren't working when called from the server itself. I hope this makes sense. Thanks for taking the time to read this rather verbose plea for help.

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• KVM + Cloudmin + IpTables

  - by Alex

  I have a KVM virtualization on a machine. I use Ubuntu Server + Cloudmin (in order to manage virtual machine instances). On a host system I have four network interfaces: ebadmin@saturn:/var/log$ ifconfig br0 Link encap:Ethernet HWaddr 10:78:d2:ec:16:38 inet addr:192.168.0.253 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::1278:d2ff:feec:1638/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:589337 errors:0 dropped:0 overruns:0 frame:0 TX packets:334357 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:753652448 (753.6 MB) TX bytes:43385198 (43.3 MB) br1 Link encap:Ethernet HWaddr 6e:a4:06:39:26:60 inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0 inet6 addr: fe80::6ca4:6ff:fe39:2660/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16995 errors:0 dropped:0 overruns:0 frame:0 TX packets:13309 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2059264 (2.0 MB) TX bytes:1763980 (1.7 MB) eth0 Link encap:Ethernet HWaddr 10:78:d2:ec:16:38 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:610558 errors:0 dropped:0 overruns:0 frame:0 TX packets:332382 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:769477564 (769.4 MB) TX bytes:44360402 (44.3 MB) Interrupt:20 Memory:fe400000-fe420000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:239632 errors:0 dropped:0 overruns:0 frame:0 TX packets:239632 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:50738052 (50.7 MB) TX bytes:50738052 (50.7 MB) tap0 Link encap:Ethernet HWaddr 6e:a4:06:39:26:60 inet6 addr: fe80::6ca4:6ff:fe39:2660/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:17821 errors:0 dropped:0 overruns:0 frame:0 TX packets:13703 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:2370468 (2.3 MB) TX bytes:1782356 (1.7 MB) br0 is connected to a real network, br1 is used to create a private network shared between guest systems. Now I need to configure iptables for network access. First of all I allow ssh sessions on port 8022 on the host system, then I allow all connections in state RELATED, ESTABLISHED. This is working ok. I install another system as guest, it's IP address is 192.168.10.2, and now I have two problems: I want to allow the access from this host to the outside world, cannot accomplish this. I can ssh from the host. I want to be able to ssh to the guest from the outside world using 8023 port. Cannot accomplish this. Full iptables configuration is following: ebadmin@saturn:/var/log$ sudo iptables --list [sudo] password for ebadmin: Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere tcp dpt:8022 ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED LOG all -- anywhere anywhere LOG level warning Chain FORWARD (policy ACCEPT) target prot opt source destination LOG all -- anywhere anywhere LOG level warning Chain OUTPUT (policy ACCEPT) target prot opt source destination LOG all -- anywhere anywhere LOG level warning ebadmin@saturn:/var/log$ sudo iptables -t nat --list Chain PREROUTING (policy ACCEPT) target prot opt source destination DNAT tcp -- anywhere anywhere tcp spt:8023 to:192.168.10.2:22 Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination The worst of all is that I don't know how to interpret iptables logs. I don't see the final decision of the firewall. Need help urgently.

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• Long connection times from PHP to MySQL on EC2

  - by Erik Giberti

  I'm having an intermittent issue connecting to a database slave with InnoDB. Intermittently I get connections taking longer than 2 seconds. These servers are hosted on Amazon's EC2. The app server is PHP 5.2/Apache running on Ubuntu. The DB slave is running Percona's XtraDB 5.1 on Ubuntu 9.10. It's using an EBS Raid array for the data storage. We already use skip name resolve and bind to address 0.0.0.0. This is a stub of the PHP code that's failing $tmp = mysqli_init(); $start_time = microtime(true); $tmp-options(MYSQLI_OPT_CONNECT_TIMEOUT, 2); $tmp-real_connect($DB_SERVERS[$server]['server'], $DB_SERVERS[$server]['username'], $DB_SERVERS[$server]['password'], $DB_SERVERS[$server]['schema'], $DB_SERVERS[$server]['port']); if(mysqli_connect_errno()){ $timer = microtime(true) - $start_time; mail($errors_to,'DB connection error',$timer); } There's more than 300Mb available on the DB server for new connections and the server is nowhere near the max allowed (60 of 1,200). Loading on both servers is < 2 on 4 core m1.xlarge instances. Some highlights from the mysql config max_connections = 1200 thread_stack = 512K thread_cache_size = 1024 thread_concurrency = 16 innodb-file-per-table innodb_additional_mem_pool_size = 16M innodb_buffer_pool_size = 13G Any help on tracing the source of the slowdown is appreciated. [EDIT] I have been updating the sysctl values for the network but they don't seem to be fixing the problem. I made the following adjustments on both the database and application servers. net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_sack = 0 net.ipv4.tcp_timestamps = 0 net.ipv4.tcp_fin_timeout = 20 net.ipv4.tcp_keepalive_time = 180 net.ipv4.tcp_max_syn_backlog = 1280 net.ipv4.tcp_synack_retries = 1 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 87380 16777216 [EDIT] Per jaimieb's suggestion, I added some tracing and captured the following data using time. This server handles about 51 queries/second at this the time of day. The connection error was raised once (at 13:06:36) during the 3 minute window outlined below. Since there was 1 failure and roughly 9,200 successful connections, I think this isn't going to produce anything meaningful in terms of reporting. Script: date /root/database_server.txt (time mysql -h database_Server -D schema_name -u appuser -p apppassword -e '') /dev/null 2 /root/database_server.txt Results: === Application Server 1 === Mon Feb 22 13:05:01 EST 2010 real 0m0.008s user 0m0.001s sys 0m0.000s Mon Feb 22 13:06:01 EST 2010 real 0m0.007s user 0m0.002s sys 0m0.000s Mon Feb 22 13:07:01 EST 2010 real 0m0.008s user 0m0.000s sys 0m0.001s === Application Server 2 === Mon Feb 22 13:05:01 EST 2010 real 0m0.009s user 0m0.000s sys 0m0.002s Mon Feb 22 13:06:01 EST 2010 real 0m0.009s user 0m0.001s sys 0m0.003s Mon Feb 22 13:07:01 EST 2010 real 0m0.008s user 0m0.000s sys 0m0.001s === Database Server === Mon Feb 22 13:05:01 EST 2010 real 0m0.016s user 0m0.000s sys 0m0.010s Mon Feb 22 13:06:01 EST 2010 real 0m0.006s user 0m0.010s sys 0m0.000s Mon Feb 22 13:07:01 EST 2010 real 0m0.016s user 0m0.000s sys 0m0.010s [EDIT] Per a suggestion received on a LinkedIn question, I tried setting the back_log value higher. We had been running the default value (50) and increased it to 150. We also raised the kernel value /proc/sys/net/core/somaxconn (maximum socket connections) to 256 on both the application and database server from the default 128. We did see some elevation in processor utilization as a result but still received connection timeouts.

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• Rails app deployment challenge, not finding database table in production.log

  - by Stefan M

  I'm trying to setup PasswordPusher as my first ruby app ever. Building and running the webrick server as instructed in README works fine. It was only when I tried to add Apache ProxyPass and ProxyPassReverse that the page load slowed down to several minutes. So I gave mod_passenger a whirl but now it's unable to find the password table. Here's what I get in log/production.log. Started GET "/" for 10.10.2.13 at Sun Jun 10 08:07:19 +0200 2012 Processing by PasswordsController#new as HTML Completed 500 Internal Server Error in 1ms ActiveRecord::StatementInvalid (Could not find table 'passwords'): app/controllers/passwords_controller.rb:77:in `new' app/controllers/passwords_controller.rb:77:in `new' While in log/private.log I get a lot more output so here's just a snippet but it looks to me like it's working with the database. Edit: This was actually old log output, maybe from db:create. Migrating to AddUserToPassword (20120220172426) (0.3ms) ALTER TABLE "passwords" ADD "user_id" integer (0.0ms) PRAGMA index_list("passwords") (0.2ms) CREATE INDEX "index_passwords_on_user_id" ON "passwords" ("user_id") (0.7ms) INSERT INTO "schema_migrations" ("version") VALUES ('20120220172426') (0.1ms) select sqlite_version(*) (0.1ms) SELECT "schema_migrations"."version" FROM "schema_migrations" (0.0ms) PRAGMA index_list("passwords") (0.0ms) PRAGMA index_info('index_passwords_on_user_id') (4.6ms) PRAGMA index_list("rails_admin_histories") (0.0ms) PRAGMA index_info('index_rails_admin_histories') (0.0ms) PRAGMA index_list("users") (4.8ms) PRAGMA index_info('index_users_on_unlock_token') (0.0ms) PRAGMA index_info('index_users_on_reset_password_token') (0.0ms) PRAGMA index_info('index_users_on_email') (0.0ms) PRAGMA index_list("views") In my vhost I have it set to use RailsEnv private. <VirtualHost *:80> # ProxyPreserveHost on # # ProxyPass / http://10.220.100.209:180/ # ProxyPassReverse / http://10.220.100.209:180/ DocumentRoot /var/www/pwpusher/public <Directory /var/www/pwpusher/public> allow from all Options -MultiViews </Directory> RailsEnv private ServerName pwpush.intranet ErrorLog /var/log/apache2/error.log LogLevel debug CustomLog /var/log/apache2/access.log combined </VirtualHost> My passenger.conf in mods-enabled is default for Debian. <IfModule mod_passenger.c> PassengerRoot /usr PassengerRuby /usr/bin/ruby </IfModule> In the apache error.log I get something more cryptic to me. [Sun Jun 10 06:25:07 2012] [notice] Apache/2.2.16 (Debian) Phusion_Passenger/2.2.11 PHP/5.3.3-7+squeeze9 with Suhosin-Patch mod_ssl/2.2.16 OpenSSL/0.9.8o configured -- resuming normal operations /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 08:07:19 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 10:17:16 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / Maybe that's routine stuff. I can see the rake command create files in the relative app root db/. I have private.sqlite3, production.sqlite3 among others. And here's my config/database.yml. base: &base adapter: sqlite3 timeout: 5000 development: database: db/development.sqlite3 <<: *base test: database: db/test.sqlite3 <<: *base private: database: db/private.sqlite3 <<: *base production: database: db/production.sqlite3 <<: *base I've tried setting absolute paths in it but that did not help.

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• Windows XP Video Configuration Issues

  - by Matt

  Recently I had my motherboard burn out on me. Needing the machine for work, I purchased a different motherboard and installed that. Generally a reinstall of windows is good at that point but I am not in a position to do that so I just decided I would live with it for now. When I can log-in, everything works fine, what doesn't is getting to the log-in prompt to begin with. Basically when I first installed the new mobo, every time I rebooted the machine, I would not get the windows login prompt. One of the monitors would receive a signal but the screen would be black. Moving the mouse would not show the cursor and hitting the up arrow key and typing my password and hitting enter (which will normally log you in without mouse) wouldn't change anything. I would then change the monitor configuration around (2 lcd's and a crt) and reboot and at least one of the monitors would work and display the login prompt. I could then go into display properties and turn on the other monitors. However if I rebooted again, I would get the black screen on one monitor again. I would then have to change the configuration again to one not used before and I could re-do the manual setup at that point. I think windows saves the configurations so I had to keep giving it new ones. Needless to say I've been trying to not turn off my machine. Early this week I actually got the prompt to come up without playing musical monitors. Thinking everything was getting better, I found no harm in rebooting to install the latest windows updates. Boy was I wrong. Now no matter what I do I can't get a windows log-in prompt to display. I've tried almost every conceivable combination. The new mobo has onboard video so I set that in the bios (yea bios screen always displays fine, its not until windows boots that there is a problem) to be the primary video. Still no luck. I have two other graphics cards in the machine which I'm using. Tried all kinds of configurations between those and on-board but still get this black screen of death. I read somewhere that deleting the video drivers would reset the configurations. I logged into safe mode (which works on one monitor), and uninstalled the display drivers. Still no luck and when I booted back into safe mode, it wanted to install new hardware and the display adapters weren't there as expected. Anyone have any ideas? A fresh install would be a pain and I might be getting my old board back from RMA soon so not sure I want to go through with that just yet. Only thing I can think of is to continue to try other combinations like physically removing the graphics cards. They are both EVGA 8600 cards and the windows boot screen does display fwiw.

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• All client browsers repeatedly asking for NTLM authentication when running through local proxy server

  - by Marko

  All client browsers repeatedly asking for NTLM authentication when running through local proxy server. When pointing browsers through the local proxy to the internet, some but not all clients are being repeatedley prompted to authenticate to the proxy server. I have inspected the headers using firefox live headers as well as fiddler, and in all cases the authentication prompts happen when requesting SSL resources. an example of this would be as follows: GET http://gmail.google.com/mail/ HTTP/1.1 Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave- flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms- xpsdocument, application/xaml+xml, */* Accept-Language: en-gb User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Accept-Encoding: gzip, deflate Proxy-Connection: Keep-Alive Host: gmail.google.com GET http://gmail.google.com/mail/ HTTP/1.1 Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave- flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms- xpsdocument, application/xaml+xml, */* Accept-Language: en-gb User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Accept-Encoding: gzip, deflate Proxy-Connection: Keep-Alive Host: gmail.google.com Proxy-Authorization: NTLM TlRMTVNTUAABAAAAB7IIogkACQAvAAAABwAHACgAAAAFASgKAAAAD1dJTlhQMUdGTEFHU0hJUDc= GET http://gmail.google.com/mail/ HTTP/1.1 Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave- flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms- xpsdocument, application/xaml+xml, */* Accept-Language: en-gb User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Accept-Encoding: gzip, deflate Proxy-Connection: Keep-Alive Proxy-Authorization: NTLM TlRMTVNTUAADA (more stuff goes here I cut it short) Host: gmail.google.com At this point the username and password prompt has appeared in the browser, it does not matter what is typed into this box, correct credentials, random nonsense the browser does not accept anything in this box it will continue to popup. If I press cancel, I sometimes get a http 407 error, but on other occasions I click cancel the website proceeds to download and show normally. This is repeatable with some clients running through my proxy server, but in other cases it does not happen at all. In the cases where a client computer works normally, the only difference I can see is that the 3rd request for SSL resource comes back with a 200 response, see below: CONNECT gmail.google.com:443 HTTP/1.0 User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; MALC) Proxy-Connection: Keep-Alive Content-Length: 0 Host: gmail.google.com Pragma: no-cache Proxy-Authorization: NTLM TlRMTVNTUAADAAAAGAAYAIAAAA A SSLv3-compatible ClientHello handshake was found. I have tried resetting user accounts as well as computer accounts in Active Directory. User accounts and passwords that are being used are correct and the passwords have been reset so they are not out of sync. I have removed the clients and even the proxy server from the domain, and rejoined them. I have installed a complete separate proxy server and get exactly the same problem when I point clients to a different proxy server on a different IP address.

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• LDAP object class violation: attribute ou not allowed in suffix?

  - by Paramaeleon

  I am about to set up a LDAP directory. It is used as a tool to communicate user permissions from a web application to WebDav file system access, e.g. adding a user to the web platform shall allow login to the file system with the same credentials. There are no other usages intended. Following this German tutorial which encourages the use of the attributes c, o, ou etc. over dc, I configured the following suffix and root: suffix "ou=webtool,o=myOrg,c=de" rootdn "cn=ldapadmin,ou=webtool,o=myOrg,c=de" Server starts and I can connect to it by LDAP Admin, which reports “LDAP error: Object lacks”. Well, there aren’t any objects yet. I now want to create the root and admin elements from shell. I created an init.ldif file: dn: ou=webtool,o=myOrg,c=de objectclass: dcObject objectclass: organization dc: webtool o: webtool dn: cn=ldapadmin,ou=webtool,o=myOrg,c=de objectclass: organizationalRole cn: ldapadmin Trying to load the file runs into an error, telling me that ou is not allowed: server:~ # ldapadd -x -D "cn=ldapadmin,ou=webtool,o=myOrg,c=de" -W -f init.ldif Enter LDAP Password: adding new entry "ou=webtool,o=myOrg,c=de" ldap_add: Object class violation (65) additional info: attribute 'ou' not allowed I am not using ou anywhere except in the suffix, so the question: Isn’t it allowed here? What is allowed here? Here is my answer. I am not allowed to post it as answer for 8 hours, so don’t mind that it is part of the question by now. I will move it outside some day, if I don’t forget to do so. There are numberous dependencies for the creation of elements, and error messages are rather confusing if you don’t know of the concept. The objectclass isn’t necessarily dcObject for the databases’ root node, as it is likely to guess when you read several tutoriales. Instead, it must correspond to the object’s type: Here, for a name starting with ou=, it must be organizationalUnit. I found this piece of information in these tables [Link removed due to restriction: Oops! Your edit couldn't be submitted because: We're sorry, but as a spam prevention mechanism, new users can only post a maximum of two hyperlinks. Earn more than 10 reputation to post more hyperlinks. Link is below]. Further on, the object class dictates which properties must and can be added in the record. Here, organizationalUnit must have an ou: entry and must not have neither dc: nor o: entry. The healthy init.ldif file looks like that: dn: ou=webtool,o=myOrg,c=de objectclass: organizationalUnit ou: LDAP server for my webtool dn: cn=ldapadmin,ou=webtool,o=myOrg,c=de objectclass: organizationalRole cn: ldapadmin Note: The page also states: “While many objectClasses show no MUST attributes you must (ouch) follow any hierarchy […] to determine if this is the really case.” I thought that would mean my root record would have to provide the must fields for c= and o= (c: and o:, respectively) but this isn’t the case. Link in answer is (1): http :// www (dot) zytrax (dot) com/books/ldap/ape/ "Appendix E: LDAP - Object Classes and Attributes"

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• Setting up VPN client: L2TP with IPsec

  - by zachar

  I've got to connect to vpn server. It works on Windows, but in Ubuntu 10.04 not. Number of options is confusing for me. There is the input that I have: IP Address of VPN Pre-shared key to authenticate Information that MS-CHAPv2 is used Login and Password to VPN I was trying to achive that with network manager and with L2TP IPsec VPN Manager 1.0.9 but at failed. There is some logged information from L2TP IPsec VPN Manager 1.0.9: Nov 09 15:21:46.854 ipsec_setup: Stopping Openswan IPsec... Nov 09 15:21:48.088 Stopping xl2tpd: xl2tpd. Nov 09 15:21:48.132 ipsec_setup: Starting Openswan IPsec U2.6.23/K2.6.32-49-generic... Nov 09 15:21:48.308 ipsec__plutorun: Starting Pluto subsystem... Nov 09 15:21:48.318 ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d Nov 09 15:21:48.338 ipsec__plutorun: 002 added connection description "my_vpn_name" Nov 09 15:21:48.348 ipsec__plutorun: 003 NAT-Traversal: Trying new style NAT-T Nov 09 15:21:48.348 ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(1) setup failed for new style NAT-T family IPv4 (errno=19) Nov 09 15:21:48.349 ipsec__plutorun: 003 NAT-Traversal: Trying old style NAT-T Nov 09 15:21:48.994 104 "my_vpn_name" #1: STATE_MAIN_I1: initiate Nov 09 15:21:48.994 003 "my_vpn_name" #1: received Vendor ID payload [RFC 3947] method set to=109 Nov 09 15:21:48.994 003 "my_vpn_name" #1: received Vendor ID payload [Dead Peer Detection] Nov 09 15:21:48.994 106 "my_vpn_name" #1: STATE_MAIN_I2: sent MI2, expecting MR2 Nov 09 15:21:48.994 003 "my_vpn_name" #1: NAT-Traversal: Result using RFC 3947 (NAT-Traversal): i am NATed Nov 09 15:21:48.994 108 "my_vpn_name" #1: STATE_MAIN_I3: sent MI3, expecting MR3 Nov 09 15:21:48.994 004 "my_vpn_name" #1: STATE_MAIN_I4: ISAKMP SA established {auth=OAKLEY_PRESHARED_KEY cipher=oakley_3des_cbc_192 prf=oakley_sha group=modp1024} Nov 09 15:21:48.995 117 "my_vpn_name" #2: STATE_QUICK_I1: initiate Nov 09 15:21:48.995 004 "my_vpn_name" #2: STATE_QUICK_I2: sent QI2, IPsec SA established transport mode {ESP=>0x0c96795d <0x483e1a42 xfrm=AES_128-HMAC_SHA1 NATOA=none NATD=none DPD=none} Nov 09 15:21:49.996 [ERROR 210] Failed to open l2tp control file 'c my_vpn_name' and from syslog: Nov 9 15:21:46 o99 L2tpIPsecVpnControlDaemon: Opening client connection Nov 9 15:21:46 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec setup stop Nov 9 15:21:46 o99 ipsec_setup: Stopping Openswan IPsec... Nov 9 15:21:48 o99 kernel: [ 4350.245171] NET: Unregistered protocol family 15 Nov 9 15:21:48 o99 ipsec_setup: ...Openswan IPsec stopped Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec setup stop finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command invoke-rc.d xl2tpd stop Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command invoke-rc.d xl2tpd stop finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Opening client connection Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Closing client connection Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec setup start Nov 9 15:21:48 o99 kernel: [ 4350.312483] NET: Registered protocol family 15 Nov 9 15:21:48 o99 ipsec_setup: Starting Openswan IPsec U2.6.23/K2.6.32-49-generic... Nov 9 15:21:48 o99 ipsec_setup: Using NETKEY(XFRM) stack Nov 9 15:21:48 o99 kernel: [ 4350.410774] Initializing XFRM netlink socket Nov 9 15:21:48 o99 kernel: [ 4350.413601] padlock: VIA PadLock not detected. Nov 9 15:21:48 o99 kernel: [ 4350.427311] padlock: VIA PadLock Hash Engine not detected. Nov 9 15:21:48 o99 kernel: [ 4350.441533] padlock: VIA PadLock not detected. Nov 9 15:21:48 o99 ipsec_setup: ...Openswan IPsec started Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec setup start finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command invoke-rc.d xl2tpd start Nov 9 15:21:48 o99 ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d Nov 9 15:21:48 o99 pluto: adjusting ipsec.d to /etc/ipsec.d Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command invoke-rc.d xl2tpd start finished with exit code 0 Nov 9 15:21:48 o99 ipsec__plutorun: 002 added connection description "my_vpn_name" Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec auto --ready Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: Trying new style NAT-T Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(1) setup failed for new style NAT-T family IPv4 (errno=19) Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: Trying old style NAT-T Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec auto --ready finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec auto --up my_vpn_name Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec auto --up my_vpn_name finished with exit code 0 Nov 9 15:21:49 o99 L2tpIPsecVpnControlDaemon: Closing client connection Can anyone tell me something more about that? Where is the mistake?

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• Server overloaded: DBCP issue on Mysql.

  - by taras

  Hi, I have 2 setups tomcat5.5.20 on Redhat and mysql 4.1.22 on another Redhat server. Recently i started getting the repeating error(each seconds) in catalina.out: DBCP object created 2010-12-22 13:33:12 by the following code was never closed: java.lang.Exception at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.init(AbandonedTrace.java:96) at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.(AbandonedTrace.java:79) at org.apache.tomcat.dbcp.dbcp.DelegatingResultSet.(DelegatingResultSet.java:71) at org.apache.tomcat.dbcp.dbcp.DelegatingResultSet.wrapResultSet(DelegatingResultSet.java:80) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92) at org.apache.jsp.external_005fpage.signup_jsp._jspService(signup_jsp.java:1185) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) i have to restart tomcat once a day when server load reaches 80-90%. Also catalina.out file is growing too fast which every few hours need to clear the logs. My datasource config: <bean id="myDataSource" class="org.apache.tomcat.dbcp.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"> <value>com.mysql.jdbc.Driver</value> </property> jdbc:mysql://XXX/XXX?autoReconnect=true 20 20 <property name="maxIdle"> <value>50</value> </property> <property name="maxActive"> <value>50</value> </property> <property name="removeAbandoned"> <value>false</value> </property> <property name="removeAbandonedTimeout"> <value>2400</value> </property> <property name="username"> <value>XXX</value> </property> <property name="password"> <value>XXX</value> </property> </bean> Any idea what can be the issue ? Thanks for any direction.

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• i cant ping to my DMZ zone from the local inside PC

  - by Big Denzel

  HI everybody. Can anyone please help me on the following issue. I got a Cisco Asa 5520 configured at my network. I cant ping to my DMZ interface from a local inside network PC. so the only way a ping the DMZ is right from the Cisco ASA firewall, there i can pint to all 3 interfaces, Inside, Outside and DMZ,,,, But no PC from the Inside Network can access the DMZ. Can please any one help? I thank you all in advance Bellow is my Cisco ASA 5520 Firewall show run; ASA-FW# sh run : Saved : ASA Version 7.0(8) ! hostname ASA-FW enable password encrypted passwd encrypted names dns-guard ! interface GigabitEthernet0/0 description "Link-To-GW-Router" nameif outside security-level 0 ip address 41.223.156.109 255.255.255.248 ! interface GigabitEthernet0/1 description "Link-To-Local-LAN" nameif inside security-level 100 ip address 10.1.4.1 255.255.252.0 ! interface GigabitEthernet0/2 description "Link-To-DMZ" nameif dmz security-level 50 ip address 172.16.16.1 255.255.255.0 ! interface GigabitEthernet0/3 shutdown no nameif no security-level no ip address ! interface Management0/0 description "Local-Management-Interface" no nameif no security-level ip address 192.168.192.1 255.255.255.0 ! ftp mode passive access-list OUT-TO-DMZ extended permit tcp any host 41.223.156.107 eq smtp access-list OUT-TO-DMZ extended permit tcp any host 41.223.156.106 eq www access-list OUT-TO-DMZ extended permit icmp any any log access-list OUT-TO-DMZ extended deny ip any any access-list inside extended permit tcp any any eq pop3 access-list inside extended permit tcp any any eq smtp access-list inside extended permit tcp any any eq ssh access-list inside extended permit tcp any any eq telnet access-list inside extended permit tcp any any eq https access-list inside extended permit udp any any eq domain access-list inside extended permit tcp any any eq domain access-list inside extended permit tcp any any eq www access-list inside extended permit ip any any access-list inside extended permit icmp any any access-list dmz extended permit ip any any access-list dmz extended permit icmp any any access-list cap extended permit ip 10.1.4.0 255.255.252.0 172.16.16.0 255.255.25 5.0 access-list cap extended permit ip 172.16.16.0 255.255.255.0 10.1.4.0 255.255.25 2.0 no pager logging enable logging buffer-size 5000 logging monitor warnings logging trap warnings mtu outside 1500 mtu inside 1500 mtu dmz 1500 no failover asdm image disk0:/asdm-508.bin no asdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 1 0.0.0.0 0.0.0.0 static (dmz,outside) tcp 41.223.156.106 www 172.16.16.80 www netmask 255.255.255 .255 static (dmz,outside) tcp 41.223.156.107 smtp 172.16.16.25 smtp netmask 255.255.2 55.255 static (inside,dmz) 10.1.0.0 10.1.16.0 netmask 255.255.252.0 access-group OUT-TO-DMZ in interface outside access-group inside in interface inside access-group dmz in interface dmz route outside 0.0.0.0 0.0.0.0 41.223.156.108 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00 timeout uauth 0:05:00 absolute http server enable http 10.1.4.0 255.255.252.0 inside no snmp-server location no snmp-server contact snmp-server enable traps snmp authentication linkup linkdown coldstart crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 telnet timeout 5 ssh timeout 5 console timeout 0 management-access inside ! ! match default-inspection-traffic ! ! policy-map global_policy class inspection_default inspect dns maximum-length 512 inspect ftp inspect h323 h225 inspect h323 ras inspect netbios inspect rsh inspect rtsp inspect skinny inspect esmtp inspect sqlnet inspect sunrpc inspect tftp inspect sip inspect xdmcp ! service-policy global_policy global Cryptochecksum: : end ASA-FW# Please Help. Big Denzel

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