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  • Installing gitosis and closed port?

    - by Nicolas GUILLAUME
    I'm trying to install gitosis on a Server (hosted by OVH and running Ubuntu server 11.04). I've done it a few times and never had any problems. But this time I have something very wired when I simply try to clone gitosis. [root@ovks-1:~/]#git clone git://eagain.net/gitosis.git Cloning into gitosis... eagain.net[0: 208.78.102.120]: errno=Connection refused fatal: unable to connect a socket (Connection refused) zsh: exit 128 git clone git://eagain.net/gitosis.git Based on my searches it looks like the port 9418 is closed. But I don't understand, a server by definition shouldn't have any closed port and I can't find a way to see if they are. So how can I check is a port is open and how can I open it if closed? Thank you for your help. Requested by WesleyDavid: iptables -L result [root@odeoos-vks-1:~/]#iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I have no idea what it means... Thanks :)

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  • QoS for Cisco Router to Prioritize Voice and Interactive Traffic

    - by TJ Huffington
    I have a Cisco 891W NATing Voice and Data to the internet over a 10mbit/2mbit connection. Voice traffic gets degraded when I upload large files. Pings time out as well. I tried to configure a QoS policy but it's basically not doing anything. Voice traffic still degrades when upload bandwidth gets saturated. Here is my current configruation: class-map match-any QoS-Transactional match protocol ssh match protocol xwindows class-map match-any QoS-Voice match protocol rtp audio class-map match-any QoS-Bulk match protocol secure-nntp match protocol smtp match protocol tftp match protocol ftp class-map match-any QoS-Management match protocol snmp match protocol dns match protocol secure-imap class-map match-any QoS-Inter-Video match protocol rtp video class-map match-any QoS-Voice-Control match access-group name Voice-Control policy-map QoS-Priority-Output class QoS-Voice priority percent 25 set dscp ef class QoS-Inter-Video bandwidth remaining percent 10 set dscp af41 class QoS-Transactional bandwidth remaining percent 25 random-detect dscp-based set dscp af21 class QoS-Bulk bandwidth remaining percent 5 random-detect dscp-based set dscp af11 class QoS-Management bandwidth remaining percent 1 set dscp cs2 class QoS-Voice-Control priority percent 5 set dscp ef class class-default fair-queue interface FastEthernet8 bandwidth 1024 bandwidth receive 20480 ip address dhcp ip nat outside ip virtual-reassembly duplex auto speed auto auto discovery qos crypto map mymap max-reserved-bandwidth 80 service-policy output QoS-Priority-Output crypto map mymap 10 ipsec-isakmp set peer 1.2.3.4 default set transform-set ESP-3DES-SHA match address 110 qos pre-classify ! fa8 is my connection to the internet. Voice traffic goes over a VPN ("mymap") to the SIP server. That's why I specified "qos pre-classify" which I believe is the way to classify traffic over the VPN. However even when I ping a public IP while saturating upload bandwidth, the latency is exceptionally high. Is this configuration correct? Are there any suggestions that might make this work for my setup? Thanks in advance.

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  • QoS for Cisco Router to Prioritize Voice and Interactive Traffic

    - by TJ Huffington
    I have a Cisco 891W NATing Voice and Data to the internet over a 10mbit/2mbit connection. Voice traffic gets degraded when I upload large files. Pings time out as well. I tried to configure a QoS policy but it's basically not doing anything. Voice traffic still degrades when upload bandwidth gets saturated. Here is my current configruation: class-map match-any QoS-Transactional match protocol ssh match protocol xwindows class-map match-any QoS-Voice match protocol rtp audio class-map match-any QoS-Bulk match protocol secure-nntp match protocol smtp match protocol tftp match protocol ftp class-map match-any QoS-Management match protocol snmp match protocol dns match protocol secure-imap class-map match-any QoS-Inter-Video match protocol rtp video class-map match-any QoS-Voice-Control match access-group name Voice-Control policy-map QoS-Priority-Output class QoS-Voice priority percent 25 set dscp ef class QoS-Inter-Video bandwidth remaining percent 10 set dscp af41 class QoS-Transactional bandwidth remaining percent 25 random-detect dscp-based set dscp af21 class QoS-Bulk bandwidth remaining percent 5 random-detect dscp-based set dscp af11 class QoS-Management bandwidth remaining percent 1 set dscp cs2 class QoS-Voice-Control priority percent 5 set dscp ef class class-default fair-queue interface FastEthernet8 bandwidth 1024 bandwidth receive 20480 ip address dhcp ip nat outside ip virtual-reassembly duplex auto speed auto auto discovery qos crypto map mymap max-reserved-bandwidth 80 service-policy output QoS-Priority-Output crypto map mymap 10 ipsec-isakmp set peer 1.2.3.4 default set transform-set ESP-3DES-SHA match address 110 qos pre-classify ! fa8 is my connection to the internet. Voice traffic goes over a VPN ("mymap") to the SIP server. That's why I specified "qos pre-classify" which I believe is the way to classify traffic over the VPN. However even when I ping a public IP while saturating upload bandwidth, the latency is exceptionally high. Is this configuration correct? Are there any suggestions that might make this work for my setup? Thanks in advance.

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  • Remote Desktop Connection Only Works One Way

    - by advocate
    I can't get my desktop to connect to my laptop through remote desktop connection. Unfortunately I can only get my laptop to connect to my desktop (quite useless). Desktop: Windows 7 Ultimate 64 Bit SP1 Windows firewall is off for all 3 profiles (domain / private / public) Remote desktop connection is installed and set to allow all connections Under running services is: Running Remote Desktop Configuration Running Remote Desktop Services Running Remote Desktop Services UserMode Port Redirector Running Remote Procedure Call (RPC) Stopped Remote Access Auto Connection Manager Stopped Remote Access Connection Manager Stopped Remote Procedure Call (RPC) Locator Stopped Remote Registry Stopped Routing and Remote Access Stopped Windows Remote Management (WS-Management) Laptop: Windows 7 Home Premium 64 Bit SP1 Windows firewall is off for all3 profiles (domain / private / public) Remote desktop connection is installed and set to 'Allow Remote Assistance connections to this computer' Under running services is: Running Remote Procedure Call (RPC) Stopped Remote Access Auto Connection Manager Stopped Remote Access Connection Manager Stopped Remote Desktop Configuration Stopped Remote Desktop Services Stopped Remote Procedure Call (RPC) Locator Stopped Remote Registry Stopped Routing and Remote Access Stopped Windows Remote Management (WS-Management) It should be noted that the Laptop that I'm trying to connect to is an Alienware and might be running some wonky Dell settings. Also, the settings are slightly different for remote desktop connection as it's a Home edition of Windows and not Ultimate like my desktop. Finally, both computers are on the same Homegroup so that RDC can be accessed by one click through the network section of Windows. They're also on the same workgroup, MSHOME, just to see if that helps.

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  • Why are UDP messages from outside the network received but not delivered?

    - by Warren Pena
    I have an Ubuntu Server 10.04 application I've developed that receives messages over a UDP port. The ultimate purpose of this application is to receive messages sent from workers' 3G modems out in the field. If use netcat on either another ubuntu Server or my Vista laptop (both on the same LAN as my test machine) to send a message, the message arrives correctly and appears in my application. However, if I go out to my car and use its 3G modem to send a message from the same Vista laptop, it doesn't work. If I run tcpdump -A, I see the message arrive correctly, but it's never delivered to my application. Clearly, the OS is the one making the choice not to deliver the messages (else they wouldn't appear in tcpdump nor would my app receive them when coming from local machines). I have not installed any firewall software on this machine, nor am I aware of anything installed by default that would block the traffic. sudo iptables --list returns Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I'm not too familiar with iptables, but it looks to me like that's telling it to not do anything. What could be going on that's preventing my messages from being delivered?

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  • Why can’t two programs access my webcam simultaneously?

    - by qdii
    I first launch cheese and my webcam turns on. I then run vlc to grab the output of /dev/video0 but it fails with: [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3eb4000b78] main input error: open of `v4l2:///dev/video0' failed Whatever pair of video programs I run (skype, cheese, vlc, etc.), the result is always the same: the second program can no longer use the webcam when the first one has already grabbed the output. However I find it curious as video4linux states: In general, V4L2 devices can be opened more than once. When this is supported by the driver, users can for example start a "panel" application to change controls like brightness or audio volume, while another application captures video and audio. My webcam is seen in lspci as 058f:a014 Alcor Micro Corp. Asus Integrated Webcam, but I don’t even know what the underlying driver is, so I can’t check whether my problem is driver-related or not. Any input would be more than welcome!

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  • How does SELinux affect the /home directory?

    - by Matt Solnit
    Hi everyone. I'm migrating a CentOS 5.3 system from MySQL to PostgreSQL. The way our machine is set up is that the biggest disk partition is mounted to /home. This is out of my control and is managed by the hosting provider. Anyway, we obviously want the database files to be on /home for this reason. With MySQL, we did the following: Edited my.cnf and changed the datadir setting to /home/mysql Added a new "File type" policy record (I hope I'm using the right terminology) to set /home/mysql(/.*)? to mysqld_db_t Ran restorecon -R /home/mysql to assign the labels and everything was good. With PostgreSQL, however, I did the following: Edited /etc/init.d/postgresql and changed the PGDATA and PGLOG variables to /home/pgsql/data and /home/pgsql/pgstartup.log, respectively Added a new policy record to set /home/pgsql/pgstartup.log to postgresql_log_t Added a new policy record to set /home/pgsql/data(/.*)? to postgresql_db_t Ran restorecon -R /home/pgsql to assign the labels At this point, I still cannot start PostgreSQL. pgstartup.log says: # cat pgstartup.log postmaster cannot access the server configuration file "/home/pgsql/data/postgresql.conf": Permission denied The weird thing is that I don't see any messages related to this in /var/log/messages or /var/log/secure, but if I turn off SElinux, then everything works. I made sure all the permissions are correct (600 for files and 700 for directories), as well as the ownership (postgres:postgres). Can anyone tell me what I am doing wrong? I'm using the Yum repository from commandprompt.com, version 8.3.7. EDIT: The reason my question specifically mentions the /home directory is that if I go through all these steps for any other directory, e.g. /var/lib/pgsql2 or /usr/local/pgsql, then it works as expected.

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  • CoreStore Encryption Error on Mac Lion

    - by Michael
    I am trying to encrypt an external drive using diskutil CoreStorage on Mac Lion 10.7.4. I thought the only requirements were that the drive have GUID partition scheme and Journaled HFS+ file system. I think my drive is configured accordingly but when I type the following command I get an error message back: Michaels-MacBook-Pro:~ Michael$ diskutil cs convert disk2 -passphrase TestPassword Error converting disk to CoreStorage: The given file system is not supported on Core Storage (-69756) Here are the details reported for the drive in question: Michaels-MacBook-Pro:~ Michael$ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Test1 499.8 GB disk2s2 Michaels-MacBook-Pro:~ Michael$ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Test1 499.8 GB disk2s2 Michaels-MacBook-Pro:~ Michael$ diskutil info disk2s2 Device Identifier: disk2s2 Device Node: /dev/disk2s2 Part of Whole: disk2 Device / Media Name: Test1 Volume Name: Test1 Escaped with Unicode: Test1 Mounted: Yes Mount Point: /Volumes/Test1 Escaped with Unicode: /Volumes/Test1 File System Personality: Journaled HFS+ Type (Bundle): hfs Name (User Visible): Mac OS Extended (Journaled) Journal: Journal size 40960 KB at offset 0xe8e000 Owners: Disabled Partition Type: Apple_HFS OS Can Be Installed: Yes Media Type: Generic Protocol: FireWire SMART Status: Not Supported Volume UUID: 1024D0B8-1C45-3057-B040-AE5C3841DABF Total Size: 499.8 GB (499763888128 Bytes) (exactly 976101344 512-Byte-Blocks) Volume Free Space: 499.3 GB (499315826688 Bytes) (exactly 975226224 512-Byte-Blocks) Device Block Size: 512 Bytes Read-Only Media: No Read-Only Volume: No Ejectable: Yes Whole: No Internal: No I'm a little concerned that the "Partition Type: Apple_HFS" entry is causing the problem, but I don't know how to change that. I only seem to be able to control the "File System Personality: Journaled HFS+" in Disk Utility. Can anyone shed some light on this for me?

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  • How to get the permissions right for /dev/raw1394

    - by Mark0978
    I recently upgraded one of my ubuntu machines to Karmic and I'm having trouble getting the permissions of /dev/raw1394 set to 0666. They only thing this machine is used for is recording audio from a firepod which uses /dev/raw1394 via jackd and there are no other FireWire devices connected, so security around this device is not really an issue. If I run as root, everything works as expected, but I have some folks that run the recorder that I don't want to have root access. However, I can't figure out which lines setup the perms I've tied this: /etc/udev/permissions.d/raw1394.rules:raw1394:root:root:0666 And I have this setup (default install) /lib/udev/rules.d/75-persistent-net-generator.rules:SUBSYSTEMS=="ieee1394", ENV{COMMENT}="Firewire device $attr{host_id})" /lib/udev/rules.d/75-cd-aliases-generator.rules:# the "path" of usb/ieee1394 devices changes frequently, use "id" /lib/udev/rules.d/75-cd-aliases-generator.rules:ACTION=="add", SUBSYSTEM=="block", SUBSYSTEMS=="usb|ieee1394", ENV{ID_CDROM}=="?*", ENV{GENERATED}!="?*", \ /lib/udev/rules.d/60-persistent-storage-tape.rules:KERNEL=="st*[0-9]|nst*[0-9]", ATTRS{ieee1394_id}=="?*", ENV{ID_SERIAL}="$attr{ieee1394_id}", ENV{ID_BUS}="ieee1394" /lib/udev/rules.d/50-udev-default.rules:# FireWire (deprecated dv1394 and video1394 drivers) /lib/udev/rules.d/50-udev-default.rules:KERNEL=="dv1394-[0-9]*", NAME="dv1394/%n", GROUP="video" /lib/udev/rules.d/50-udev-default.rules:KERNEL=="video1394-[0-9]*", NAME="video1394/%n", GROUP="video" /lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="sd*[!0-9]|sr*", ATTRS{ieee1394_id}=="?*", SYMLINK+="disk/by-id/ieee1394-$attr{ieee1394_id}" /lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="sd*[0-9]", ATTRS{ieee1394_id}=="?*", SYMLINK+="disk/by-id/ieee1394-$attr{ieee1394_id}-part%n" And I find these lines in /var/log/syslog Apr 30 09:11:30 record kernel: [ 3.284010] ieee1394: Node added: ID:BUS[0-00:1023] GUID[000a9200c7062266] Apr 30 09:11:30 record kernel: [ 3.284195] ieee1394: Host added: ID:BUS[0-01:1023] GUID[00d0035600a97b9f] Apr 30 09:11:30 record kernel: [ 18.372791] ieee1394: raw1394: /dev/raw1394 device initialized What I can't figure out, is which line actually creates that raw1394 device in the first place. How do you get /dev/raw1394 to have permissions 0666?

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  • Secure iptables config for Samba

    - by Eric
    I'm trying to setup an iptables config such that outbound connections from my CentOS 6.2 server are allowed ONLY if they are of state ESTABLISHED. Currently, the following setup is working great for sshd, but all the Samba rules get totally ignored for a reason I cannot figure out. iptables Bash script to setup ALL rules: # Remove all existing rules iptables -F # Set default chain policies iptables -P INPUT DROP iptables -P FORWARD DROP iptables -P OUTPUT DROP # Allow incoming SSH iptables -A INPUT -i eth0 -p tcp --dport 22222 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 22222 -m state --state ESTABLISHED -j ACCEPT # Allow incoming Samba iptables -A INPUT -i eth0 -s 10.1.1.0/24 -p udp --dport 137:138 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -d 10.1.1.0/24 -p udp --sport 137:138 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -s 10.1.1.0/24 -p tcp --dport 139 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -d 10.1.1.0/24 -p tcp --sport 139 -m state --state ESTABLISHED -j ACCEPT # Enable these rules service iptables restart iptables rule list after running the above script: [root@repoman ~]# iptables -L Chain INPUT (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:22222 state NEW,ESTABLISHED Chain FORWARD (policy DROP) target prot opt source destination Chain OUTPUT (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp spt:22222 state ESTABLISHED Ultimately, I'm trying to restrict Samba the same way I have done for sshd. In addition, I'm trying to restrict connections to the following IP address range: 10.1.1.12 - 10.1.1.19 Can you guys offer some pointers or possibly even a full-blown solution? I've read man iptables quite extensively, so I'm not sure why the Samba rules are getting thrown out. Additionally, removing the -s 10.1.1.0/24 flags don't change the fact the rules get ignored.

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  • KVM Guest with NAT + Bridged networking

    - by Daniel
    I currently have a few KVM Guests on a dedicated server with bridged networking (this works) and i can successfully ping the outside ips i assign via ifconfig (in the guest). However, due to the fact i only have 5 public ipv4 ip addresses, i would like to port forward services like so: hostip:port - kvm_guest:port UPDATE I found out KVM comes with a "default" NAT interface, so added the virtual NIC to the Guest virsh configuration then configured it in the Guest, it has the ip address: 192.168.122.112 I can successfully ping 192.168.122.112 and access all ports on 192.168.122.112 from the KVM Host, so i tried to port forward like so: iptables -t nat -I PREROUTING -p tcp --dport 5222 -j DNAT --to-destination 192.168.122.112:2521 iptables -I FORWARD -m state -d 192.168.122.0/24 --state NEW,RELATED,ESTABLISHED -j ACCEPT telnet KVM_HOST_IP 5222 just hangs on "trying" telnet 192.168.122.112 2521 works [root@node1 ~]# tcpdump port 5222 tcpdump: WARNING: eth0: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 23:43:47.216181 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445777813 ecr 0,sackOK,eol], length 0 23:43:48.315747 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445778912 ecr 0,sackOK,eol], length 0 23:43:49.415606 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445780010 ecr 0,sackOK,eol], length 0 7 packets received by filter 0 packets dropped by kernel [root@node1 ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere 192.168.122.0/24 state NEW,RELATED,ESTABLISHED Chain OUTPUT (policy ACCEPT) target prot opt source destination All help is appreciated. Thanks.

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  • Why is mkfs overwriting the LUKS encryption header on LVM on RAID partitions on Ubuntu 12.04?

    - by Starchy
    I'm trying to setup a couple of LUKS-encrypted partitions to be mounted after boot-time on a new Ubuntu server which was installed with LVM on top of software RAID. After running cryptsetup luksFormat, the LUKS header is clearly visible on the volume. After running any flavor of mkfs, the header is overwritten (which does not happen on other systems that were setup without LVM), and cryptsetup will no longer recognize the device as a LUKS device. # cryptsetup -y --cipher aes-cbc-essiv:sha256 --key-size 256 luksFormat /dev/dm-1 WARNING! ======== This will overwrite data on /dev/dm-1 irrevocably. Are you sure? (Type uppercase yes): YES Enter LUKS passphrase: Verify passphrase: # hexdump -C /dev/dm-1|head -n5 00000000 4c 55 4b 53 ba be 00 01 61 65 73 00 00 00 00 00 |LUKS....aes.....| 00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000020 00 00 00 00 00 00 00 00 63 62 63 2d 65 73 73 69 |........cbc-essi| 00000030 76 3a 73 68 61 32 35 36 00 00 00 00 00 00 00 00 |v:sha256........| 00000040 00 00 00 00 00 00 00 00 73 68 61 31 00 00 00 00 |........sha1....| # cryptsetup luksOpen /dev/dm-1 web2-var # mkfs.ext4 /dev/mapper/web2-var [..snip..] Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done # hexdump -C /dev/dm-1|head -n5 # cryptsetup luksClose /dev/mapper/web2-var 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000400 00 40 5d 00 00 88 74 01 66 a0 12 00 17 f2 6d 01 |.@]...t.f.....m.| 00000410 f5 3f 5d 00 00 00 00 00 02 00 00 00 02 00 00 00 |.?].............| 00000420 00 80 00 00 00 80 00 00 00 20 00 00 00 00 00 00 |......... ......| # cryptsetup luksOpen /dev/dm-1 web2-var Device /dev/dm-1 is not a valid LUKS device. I have also tried mkfs.ext2 with the same result. Based on setups I've done successfully on Debian and Ubuntu (but not LVM or Ubuntu 12.04), it's hard to see why this is failing.

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  • Dell PE2950 - slow IO rates for writing and reading locally

    - by OrenM
    I'm having a serious issue with dell server PE2950. The server has really slow IO rates, so slow that I'm not able to use it anymore I tried few things to solve this: changing disks to new disks (configured them as raid1) changing perc card + perc cables reinstalling the OS of course, had to cause of changing of disks, centos 5.5 x64bit firmware update to everything virtual disks policy: No Read Ahead,Write Back, disk cache policy disabled. openmanage doesn't alert about anything, also i ran dell's diag tests, everything passed, also dell didn't see anything in deset log. dell offered to reseat everything, including the cpu, we did that as well, still io rates are slow I have several PE2950 servers, and I never had such a thing with any of those. All have similar or exact hardware as this one, all configured the same, with the same os centos 5.5 x64, same disks, same raid, same policy. Just for comparison: the problematic PE2950 server: [root@bad ~]# time sh -c "dd if=/dev/zero of=/tmp/ddfile bs=8k count=200000 && sync" 200000+0 records in 200000+0 records out 1638400000 bytes (1.6 GB) copied, 27.7946 seconds, 58.9 MB/s real 0m33.968s user 0m0.531s sys 0m26.000s good PE2950 server (with the exact same hardware): [root@good ~]# time sh -c "dd if=/dev/zero of=/tmp/ddfile bs=8k count=200000 && sync" 200000+0 records in 200000+0 records out 1638400000 bytes (1.6 GB) copied, 3.19999 seconds, 512 MB/s real 0m7.694s user 0m0.053s sys 0m4.057s Hopefully you will have an idea what can cause the problem.

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  • netconfig won't change DNS on opensuse 12.2

    - by Krystian
    I'm trying to update my dns servers after openvpn connection, but netconfig won't do that for me. Here's how I'm trying to do it [manually now]: /sbin/netconfig modify -v -i tap0 -s openvpn <<-EOF INTERFACE='tap0' DNSSERVERS='10.10.0.1' EOF And here's the verbose output: debug: lockfile created (/var/run/netconfig.pid) for PID 5530 debug: lockfile created debug: write new STATE file /var/run/netconfig//tap0/netconfig0 debug: Module order: dns-resolver dns-bind dns-dnsmasq nis ntp-runtime debug: dns-resolver module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_dns_settings: service 'NetworkManager' => rank '1' debug: get_dns_settings: DNS_SEARCHLIST_1='mydomain.com' debug: get_dns_settings: DNS_SERVERS_1='192.168.0.1' debug: exit get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: write_resolv_conf: ' mydomain.com ' ' 192.168.0.1 ' debug: No changes for /etc/resolv.conf debug: dns-bind Module called debug: dns-dnsmasq Module called debug: nis Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: exit get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: set_nisdomainname: eth0 24 debug: set_nisdomainname: => yes debug: set_nisdomainname: old[]=, new[24]= debug: format_yp_conf called with : debug: Using static fallback debug: format_static[0] called debug: No changes for /etc/yp.conf debug: nis domainname '' is up to date debug: ntp-runtime Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_ntp_settings: NTP_SERVER_LIST='' debug: exit get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig I've been trying to find something relevant on the web, but failed to do so. I have no other clue on how to progress with this issue. Any thoughts?

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  • Problems with ipsec betwen Cisco ASA 5505 and Juniper ssg5

    - by Oskar Kjellin
    I am trying to set up an ipsec tunnel between our ASA 5505 and a Juniper ssg5. The tunnel is up and running, but I cannot get any data through it. The local network I am on is 172.16.1.0 and the remote is 192.168.70.0. But I cannot ping anything on their netowork. I receive a "Phase 2 OK" when I set up the ipsec. I think this is the part of the config that is applicable. It seems like the data is not routed through the tunnel, but I am not sure... object network our-network subnet 172.16.1.0 255.255.255.0 object network their-network subnet 192.168.70.0 255.255.255.0 access-list outside_cryptomap extended permit ip object our-network object their-network crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto map outside_map 1 match address outside_cryptomap crypto map outside_map 1 set pfs crypto map outside_map 1 set peer THEIR_IP crypto map outside_map 1 set ikev1 phase1-mode aggressive crypto map outside_map 1 set ikev1 transform-set ESP-3DES-MD5 crypto map outside_map 1 set ikev2 pre-shared-key ***** crypto map outside_map 1 set reverse-route crypto map outside_map interface outside webvpn group-policy GroupPolicy_THEIR_IP internal group-policy GroupPolicy_THEIR_IP attributes vpn-filter value outside_cryptomap ipv6-vpn-filter none vpn-tunnel-protocol ikev1 tunnel-group THEIR_IP type ipsec-l2l tunnel-group THEIR_IP general-attributes default-group-policy GroupPolicy_THEIR_IP tunnel-group THEIR_IP ipsec-attributes ikev1 pre-shared-key ***** ikev2 remote-authentication pre-shared-key ***** ikev2 local-authentication pre-shared-key *****

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  • How do I install the main repositories for RHEL6

    - by eisaacson
    We've setup RHEL6 on a new server. As far as we can tell, our subscription is all setup properly. However, when I run yum repolist, it doesn't show any repositories. /etc/yum.repos.d/redhat.repo is empty. I tried pasting in the content from another RHEL6 server's redhat.repo but as soon as I run yum, it wipes it out again. I just need to get the basic RedHat repositories setup so I can install packages. EDIT: Using the GUI, I went to System Administration Red Hat Subscription Manager. Under the 'Products' tab, it did not show any products. EDIT: When I run yum update, here's what I get: # yum update Loaded plugins: product-id, refresh-packagekit, security, subscription-manager This system is receiving updates from Red Hat Subscription Management. Setting up Update Process No Packages marked for Update When I log in to RedHat customer portal, it shows that subscription as active. EDIT: To make sure I wasn't having a subscription issue. I re-registered and re-subscribed. I get all the same results. # subscription-manager register --force # subscription-manager subscribe --pool=*redacted* EDIT: contents of /etc/yum.conf [main] cachedir=/var/cache/yum/$basearch/$releasever keepcache=0 debuglevel=2 logfile=/var/log/yum.log exactarch=1 obsoletes=1 gpgcheck=1 plugins=1 installonly_limit=3 contents of /etc/yum/pluginconf.d/rhnplugin.conf: [main] enabled = 0 gpgcheck = 1

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  • Windows 7 Not Recognizing Camera Nor iPhone as Camera

    - by taudep
    I've been struggling with this one for a few days. I've recently upgraded an older computer to Windows 7 Home Premium. Neither my digital camera (A Canon SD1200IS) nor iPhone are ever detected as cameras, nor ever show up as accessable in Explorer. With the Canon camera, no driver is required. It's supposed to work with the default Windows 7 drivers. However, in the Control Panel's Device Manager, I'm always seeing a yellow icon next to the "Canon Digital Camera" device. I've uninstalled the device and let Windows attempt to reinstall, but it can never find a driver to install. With the iPhone, it's very similar. One big difference, though, is that iTunes can see the iPhone and back it up, etc. However, again when I go to the Device Manager, there's a yellow icon next to the iPhone. I've uninstalled iTunes, reinstalled, rebooted, deleted drivers, and let Window try to reinstall the driver, but it can never find the driver. So there seems to be some correlation that my machine can't detect cameras properly, and that it might be even a lower-level type of driver I'm struggling with. I know that USB however, does work, because I have have an external drive hooked into the machine. I've gone through the web and tried two hours worth of fixes, without success. I feel like if I can get the Canon camera detected, then the iPhone will be on it's way to being fixed too. BTW, I couldn't really find anything of use in the Event viewer. Any and all suggestions welcome.

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  • Windows 7 Users unable to add Windows 2003 server printers

    - by TravBrack
    Hi there I just rolled out a few Windows 7 x64 machines and ran into this issue where non-admin users are unable to add printers hosted on a windows 2003 server. It works fine on a 2008 server. The issue appears to be with the point and print system. A user will attempt to add the printer, a prompt will come up requiring the user to elevate privileges in order to install a driver, and will fail citing 'access denied'. I found the group policy setting Point and Print Restrictions: When the policy setting is disabled: -Windows Vista computers will not show a warning or an elevated command prompt when users create a printer connection to any server using Point and Print. So I disabled it, verified that the policy was being picked up using rsop, but it still does the same thing. I've also tried the following: Recreating the printers using newer drivers Adding the printer using 32 bit drivers on the 2003 machine, then adding the 64 bit drivers on a Windows 7 machine Adding the printer from a windows 7 machine using print management None of these things work. The security settings are no different than the working printers. Help?

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  • ext4 filesystem corruption -- maybe hardware error?

    - by pts
    I'm getting these errors in dmesg after about half an hour after I turn on the computer: [ 1355.677957] EXT4-fs error (device sda2): htree_dirblock_to_tree: inode #1318420: (comm updatedb.mlocat) bad entry in directory: directory entry across blocks - block=5251700offset=0(0), inode=1802725748, rec_len=179136, name_len=32 [ 1355.677973] Aborting journal on device sda2-8. [ 1355.678101] EXT4-fs (sda2): Remounting filesystem read-only [ 1355.690144] EXT4-fs error (device sda2): htree_dirblock_to_tree: inode #1318416: (comm updatedb.mlocat) bad entry in directory: directory entry across blocks - block=5251699offset=0(0), inode=2194783952, rec_len=53280, name_len=152 [ 1356.864720] EXT4-fs error (device sda2): htree_dirblock_to_tree: inode #1312795: (comm updatedb.mlocat) bad entry in directory: directory entry across blocks - block=5251176offset=1460(13748), inode=1432317541, rec_len=208208, name_len=119 /dev/sda is an SSD, and it's using the noop scheduler. /etc/fstab entry: UUID=acb4eefa-48ff-4ee1-bb5f-2dccce7d011f / ext4 errors=remount-ro,noatime,discard,user_xattr 0 1 System information: $ cat /proc/mounts | grep /dev/sd /dev/sda1 /boot ext2 rw,noatime,errors=continue 0 0 $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.04 DISTRIB_CODENAME=lucid DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS" $ uname -a Linux leetpad 2.6.35-30-generic-pae #61~lucid1-Ubuntu SMP Thu Oct 13 21:14:29 UTC 2011 i686 GNU/Linux I've run memtest for 7 hours, it didn't found any memory errors. Any obvious ideas what can go wrong in this case? The most reasonable thing I can imagine is that the SSD is silently dropping some write requests, which eventually leads to an EXT4 filesystem inconsistency (but no disk I/O errors). How can this happen? Is there a relevant configuration option I should ensure to be set correctly? What tools should I use to diagnose the hardware failures? Would it be possible to diagnose the SSD failure without overwriting data?

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  • Is it possible to detect nearby Wi-Fi enabled devices, not necessarily on the same network? [closed]

    - by Sky
    first question on StackExchange ever. I hope I got the right board. I'm trying to create a device (either from a standard AP or some other unconventional means) that will be able to detect nearby Wi-Fi enabled devices. For example, if a cellular phone (iPhone for instance) would be carried into the secured area, its MAC address will be logged. A cellular phone is a good example because it's the most common threat that should be detected. Some important points: The detection can be either active or passive, doesn't matter. The detected device might be connected to a different network, or might not be connected to anything at all. I assume most cellular phones are actively probing when not connected, but I'm not sure. It is important to not only identify the breach, but also to identify the device (MAC address). Conventional hardware is only optional. Distance of detection is at least 6 meters (20 feet). Handling one device at a time is good. Speed of detection is important, under 5 seconds is ideal. So my question is, is this even possible? If so, what can I use in order to make this a reality? Thank you for reading!

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  • Kerberos service on win2k dc will not start following disk failure

    - by iwilson68
    Hi, I have a win2k (mixed mode domain) with 4 DCS. One of these also acts an exchange 2000 server which uses 2 logical volumes from an MSA 2000 array. AD etc is stored on local drives. We experienced a problem last week when the raid array fell back to a redundant controller and this temporarily meant that the two logical drives were not visible to the server for around 5 minutes and a couple of reboots. The log records these Events as Type: Warning Event Source: Disk Event Category: None Event ID: 51 Date: 06/11/2009 Time: 11:46:23 User: N/A Computer: server1 Description: An error was detected on device \Device\Harddisk1\DR1 during a paging operation. Following these problems, the server “kerberos Key Distribution” service refuses to start with an “error.31 a device attached to the system is not functioning”. All other automatic start services (including net logon) are running and there are no DNS issues etc. All devices are also functioning but the two logical MSA disks are now numbered in the Windows Disk Management MMC as 2 and 4 and I suspect that they may have previously been identified as disks 1 & 2 and perhaps windows still sees this as an ongoing failure?? Replication has not been affected but obviously there are many audit failures in the security log relating to users and workstations presumably linked to the Kerberos issue. Attempting to manually start the kerberos service generates the following in the System Log. Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7023 Date: 09/11/2009 Time: 09:46:55 User: N/A Computer: Server1 Description: The Kerberos Key Distribution Center service terminated with the following error: A device attached to the system is not functioning. DCDIAG passes all tests except “Advertising” and “Services” which I believe relate directly to the failure of Kerberos only. Any advice would be appreciated.

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  • How to disable auto insert notification in Windows 7?

    - by White Phoenix
    Alright, here's the problem. My hard drive activity light on my custom built PC is blinking exactly once every second. Microsoft has this to say on the issue: http://support.microsoft.com/kb/138598 There has been discussion on this issue several months ago: Why does my hard drive LED light blink every second? The problem seems to stem from primarily Windows 7 polling the CD-ROM/DVD drive every second to see if something is inserted. The Windows 7 users in the thread that was linked in the superuser question, https://social.technet.microsoft.com/Forums/fi-FI/w7itprohardware/thread/4f6f63b3-4b58-4154-9298-1566100f9d00, have confirmed that this IS a known issue with Windows 7. Some people point at the motherboard circuitry causing the CD-ROM and SATA activity to both be linked to that hard drive activity, but whatever the case, the temporary solution seems to be to disable the CD/DVD-ROM drive in Device Manager. In fact, disabling the CD/DVD-ROM does stop the blinking, but of course this solution is counterproductive, because I shouldn't have to entirely disable a device to fix this problem. I've done the following suggestions in that thread: Change the autorun registry entry to 0 Completely disable autoplay in the autoplay control panel Disable autoplay in the Local Group Policy Editor. None of these stop the blinking from happening - apparently these solutions work for both XP and Vista, but it seems to be different in Windows 7. So I'm wondering if anyone has found out how to completely disable the polling in Windows 7, or if this will just have to be an issue we will have to deal with. There's no option to disable the auto insert notification when you go to the device within device manager (there was in XP), so I got no idea where this option is hidden, or if there's a registry key entry I could change to stop the polling. Anyone have any idea?

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  • NetApp NDMP backup with BE 2010 R2 works, restore fails

    - by uuwe
    Hi, I'm having some issues with a new Backup Exec 2010 R2 installation. I configured a NetApp FAS2020 as an NDMP device and want to backup files from the NAS to a tape drive connected to my backup server. I set up ndmpd according to this document (http://www.symantec.com/business/support/index?page=content&id=TECH48957) and created a separate backup user (http://filers.blogspot.com/2006/09/setting-veritas-netbackup-with-non.html). Backup works perfectly, but restoring any file gives me an authentication failed error. The NDMP device has a "global" ndmp user configured in the device tab (tried this with the newly created ndmpd backup user and the netapp root) and I can also configure separate resource credentials in the BE restore job. I have tried setting the same accounts for the "global" ndmp device and the restore credentials and have also tried setting different accounts for them. NDMP debug level is at 5 and this is what shows up in /etc/messages. The session is closed immediately after it has been granted. 16:12:07 PST [Java_Thread:info]: ndmpdserver: ndmpd.access allowed for version = 4, sessionId = 51, from src ip = 192.168.11.17, dst ip = FAS2020-1/192.168.11.75, src port = 50857, dst port = 10000 16:12:07 PST [Java_Thread:info]: Ndmpd51: ndmpd session closed successfully for version = 4, sessionId = 51, from src ip = 192.168.11.17, dst ip = FAS2020-1/192.168.11.75, src port = 50857, dst port = 10000 Running wireshark on the backup server doesn't produce much. It shows a SYN - SYN/ACK - NDMP CONNECT_CLOSE Request from the backup server. The Resource Credentials for the restore job behave very oddly. If I enter NDMP credentials and do "Test All" it fails. If I use my regular domain backup account, it is successful. There are no failed or succeeded logons in the NetApp ndmp log and tracing this check shows that it doesn't even connect to the NAS. This makes me think that this is more likely flaky BE behaviour rather than misconfiguration of the NAS. Here is the options ndmp output: FAS2020-1 options ndmp ndmpd.access all ndmpd.authtype challenge ndmpd.connectlog.enabled on ndmpd.enable on ndmpd.ignore_ctime.enabled off ndmpd.offset_map.enable on ndmpd.password_length 16 ndmpd.preferred_interface disable ndmpd.tcpnodelay.enable off

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  • QNAP NAS 509 (LINUX) - how to unmout busy volume and find physical disk?

    - by Horst Walter
    On my NAS QNAP TS 509 I do have a technical issue. I need to run e2fsck. This works fine for me on md0 (see below), but how can I unmount the busy devices md9 and sda4 in order to do the same. Whenever I try, I fail because the device is busy. [This part is solved, see below] In order to further track down the issue, I'd need to sort out the physical disk to device relationship. How can I find out this, e.g. md0 is a stripped volume on 2 disk (but I need to find out on what physical disk). Remark: As you can easily derive from my questions, I am not a Linux expert, but manage to get along. /dev/ram0 124.0M 94.1M 29.8M 76% / tmpfs 32.0M 80.0k 31.9M 0% /tmp /dev/sda4 310.0M 103.9M 206.1M 34% /mnt/ext /dev/md9 509.5M 39.2M 470.2M 8% /mnt/HDA_ROOT /dev/md0 1.8T 1.4T 444.7G 76% /share/MD0_DATA tmpfs 32.0M 0 32.0M 0% /.eaccelerator.tmp -- Added -- QNAP seems to be based on Busybox. I do not find something like init / telinit / runlevel. At busybox docs it says that I need to run the below. But in /var/service sv is not available. I want to go to single user mode to unmount the devices. # cd /var/service # sv d * # sv u getty* -- Added, thanks A4L -- This QNAP Box runs a special flavor of Linux, so not all SOPs do apply. In my particular case I found a services.sh script, stopping all services. After that the drive could be unmounted. The information passed by A4L is valid and worth reading it, maybe I'll profit from it next time. Links: http://unix.stackexchange.com/questions/19918/umount-device-is-busy and http://unix.stackexchange.com/questions/15024/umount-device-is-busy-why So the unmount issue is solved, still looking for the best option to find the physical to volume mapping.

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  • LDAP Authentication woes

    - by Marcelo de Moraes Serpa
    Hello list, I have a local OpenLDAP server with a couple of users. I'm using it for development purposes, here's the ldif: #Top level - the organization dn: dc=site, dc=com dc: site description: My Organization objectClass: dcObject objectClass: organization o: Organization #Top level - manager dn: cn=Manager, dc=site, dc=com objectClass: organizationalRole cn: Manager #Second level - organizational units dn: ou=people, dc=site, dc=com ou: people description: All people in the organization objectClass: organizationalunit dn: ou=groups, dc=site, dc=com ou: groups description: All groups in the organization objectClass: organizationalunit #Third level - people dn: uid=celoserpa, ou=people, dc=site, dc=com objectclass: pilotPerson objectclass: uidObject uid: celoserpa cn: Marcelo de Moraes Serpa sn: de Moraes Serpa userPassword: secret_12345 mail: [email protected] So far, so good. I can bind with "cn=Manager,dc=site,dc=com" and the 12345678 password (the local server password, setup on slapd.conf). However, I would like to bind with any user in under the people OU. In this case, I'd like to bind with: dn: uid=celoserpa, ou=people, dc=site, dc=com userPassword: secret_12345 But I'm getting a "(49) - Invalid Credentials" error everytime. I have tried through CLI tools (such as ldapadd, ldapwhoami, etc) and also ruby/ldap. The bind with these credentials fails with a invalid credentials error. I thought that it could be an ACL issue, however, the ACLs on slapd.conf seem to be right: access to attrs=userPassword by self write by dn.sub="ou=people,dc=site,dc=com" read by anonymous auth access to * by * read I was suspecting that maybe OpenLDAP doesn't compare against userPassword? Or maybe some ACL configuration I am missing that is somehow affecting the read access to userPassword for the specific DN. I'm really lost here, any suggestion appreciated! Cheers, Marcelo.

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