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• Per client DNS server assignment using Pfsense

  - by Trix

  I have a network where pfsense is the gateway. There are two sets of clients that I want. One where there will be some restrictions to the network (example, IM being blocked) and one network where there are no restrictions. One easy way I thought about doing this was assigning the different domains different DNS servers. One set could use OpenDNS, the other could use Google's Public DNS. The set with OpenDNS would have the filter options on (using OpenDNS' dashboard, I can check block IM .... so I do not manually need to block login.oscar.aol.com, meebo.com, gmail chat ....etc). So the problem is the DHCP server looks like it will only assign a single set of DNS servers to clients. Is there a way to set a per client assignment? Is there a better way to obtain what I want to obtain. This is just a small home network. I do not need anything fancy, but I do need this functionality in one way or another.

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• Fast User Switching still disabled after disabling Cisco AnyConnect VPN's "Start Before Login" feature

  - by mindless.panda

  I am running Windows 7 64 bit Ultimate and using Cisco AnyConnect VPN 2.5.3041. As expected, Fast User Switching got disabled as soon as I installed the VPN software. This FAQ from Cisco references how to enable Fast User Switching when their VPN product is installed: A. Microsoft automatically disables Fast User Switching in Windows XP when a GINA.dll is specified in the registry. The Cisco VPN Client installs the CSgina.dll to implement the "Start Before Login" feature. If you need Fast User Switching, then disable the "Start Before Login" feature. Registered users can get more information in Cisco Bug ID CSCdu24073 (registered customers only) in Bug Toolkit. My problem is that I have disabled this on the client, but fast user switching is still greyed out. This article mentions a registry edit, however they key they mention, GinaDLL, does not exist at the WinLogon registry point. Update: This article from Cisco covering AnyConnect specifically gives a one liner: AnyConnect is not compatible with fast user switching. The only problem is I now I had found a workaround before the last reformat/reinstall, but I can't remember what exactly I did previously.

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• PPTP Client setup, Fedora 17

  - by Suarez Romina

  I am trying to connect to hidemyass.com VPN services via PPTP, but I am having issues understanding why it isn't working, since I don't get a warning or fatal error and my IP remains the same. This is how i create the connection: [root@lasvegas-nv-datacenter ~]# pptpsetup --create TUNNELNAME --server 199.58.165.20 --username MYUSERNAME --password MYPASSWORD --encrypt --start And this is the output: Using interface ppp0 Connect: ppp0 <-- /dev/pts/1 CHAP authentication succeeded MPPE 128-bit stateless compression enabled local IP address 10.200.21.14 remote IP address 10.200.20.1 After that, I check the log and this is what i get: [root@lasvegas-nv-datacenter ~]# tail -f /var/log/messages Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 1 'Start-Control-Connection-Request' Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:754]: Received Start Control Connection Reply Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:788]: Client connection established. Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 7 'Outgoing-Call-Request' Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:873]: Received Outgoing Call Reply. Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:912]: Outgoing call established (call ID 0, peer's call ID 20096). Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: CHAP authentication succeeded Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: MPPE 128-bit stateless compression enabled Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: local IP address 10.200.21.14 Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: remote IP address 10.200.20.1 Can someone help me? Basically, i Ieed to connect to the VPN and have my IP changed after the connection. I read a lot of guides but still cannot understand why I don't get a connection.

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• Samba authentication problem when attempting to connect from Windows client

  - by Camsoft

  I've got a Linux server running Ubuntu and Samba. I've created two shares in Samba that point to directories that are owned by the user "cameron". When I attempt to connect to these shares on Windows 7 is connects and allows me to see the files but they are read-only. This is the desired action for guest users but not for authenticated users. My user on the Windows client is "Cameron" and has the same password as the Linux user "cameron". I don't think my Windows user has authenticated against the Linux user. I even created a users.map file to map the user cameron (linux) to Cameron (windows) but still it does not work. Here is my samba config file (UPDATED): [global] server string = %h server (Samba, Ubuntu) map to guest = Bad User passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . username map = /etc/samba/users.map syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 os level = 65 preferred master = Yes dns proxy = No wins support = Yes usershare allow guests = Yes panic action = /usr/share/samba/panic-action %d valid users = cameron write list = cameron [www] path = /usr/local/apache2/htdocs write list = @www-data force group = www-data guest ok = Yes [cameron] path = /home/cameron write list = @www-data force group = www-data guest ok = Yes

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• Azure can't ping or telnet VM from client

  - by Raif

  I have a VM on Azure with an instance sqlserver 2012 running on it. From my work computer and my home computer I can't get sqlserver management studio connect to it. I have looked at ALL the settings recommended in numerous articles. everything is setup correctly. endpoint 1433 Private and public sqlserver tcp enabled. sqlserver tcp listening on right port sqlserver using mixed auth windows fire wall, holes poked and then disabled on both client and VM can log in from VM using the credentials that I'm trying to use remotely further more I can't ping the dns or ip or tellnet address from my local machines. I can however hit the iis from a browser using the ip. strange. CS asked me to download MS Network Monitor, which I did and pinged and telneted. I have the results saved but can't really make heads or tails of them. CS hasn't responded yet. I can post some info here that would help. EDIT Never one to shrink from a challenge, I deleted my VM and re-did everything. Now it works although my confidence azure is somewhat shaken.

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• Problem running mysql client, cannot connect to mysql server

  - by ehsanul

  Edit3: Thanks for the help everyone. Sorry for wasting anybody's time, but it seems like a simple reboot solved it. I should've known better, but I just had the assumption that the "restart" solution is mostly valid just for MS Windows (no offense). I'll keep this in mind before I ask a question here again. I installed the mysql-client-5.0 and mysql-server-5.0 packages on Ubuntu 8.04, using sudo apt-get install. When I try to run the "mysql" command, I get the following error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) To verify that mysql server is running, I tried this, and it does seem to be running, with the correct socket too: $ ps aux | grep mysql root 13388 0.0 0.0 1772 528 ? S 06:24 0:00 /bin/sh /usr/bin/mysqld_safe mysql 13553 0.0 1.4 127012 15332 ? Sl 06:25 0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/var/run/mysqld/mysqld.sock root 13555 0.0 0.0 3008 696 ? S 06:25 0:00 logger -p daemon.err -t mysqld_safe -i -t mysqld ehsanul 16910 0.0 0.0 3092 772 pts/4 R+ 07:17 0:00 grep mysql So I don't understand why I'm getting an error trying to connect to mysql server. Note that I'm completely new to mysql. Edit: As requested in comments, the exact command that is returning the error is simply "sudo mysql". And when I check netstats for active networks services, I do see an entry for port 3306, with Protocol: tcp, IP Source: 127.0.0.1, State: LISTEN Edit2: It appears as if the /var/run/mysqld/mysqld.sock socket doesn't exist (if I'm interpreting the following output correctly): $ ls -al /var/run/mysqld/ total 0 drwxr-xr-x 2 mysql root 40 2009-08-06 06:36 . drwxr-xr-x 20 root root 860 2009-08-06 06:25 ..

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• Accessing network shares on Windows7 via SonicWall VPN client

  - by Jack Lloyd

  I'm running Windows7 x64 (fully patched) and the SonicWall 4.2.6.0305 client (64-bit, claims to support Windows7). I can login to the VPN and access network resources (eg SSH to a machine that lives behind the VPN). However I cannot seem to be able to access shared filesystems. Windows is refusing to do discovery on the VPN network. I suspect part of the problem is Windows persistently considers the VPN connection to be a 'public network'. Normally, you can open the network and sharing center and modify this setting, however it does not give me a choice for the VPN. So I did the expedient thing and turned on file sharing for public networks. I also disabled the Windows firewall for good measure. Still no luck. I can access the server directly by putting \\192.168.1.240 in the taskbar, which brings up the list of shares on the server. However, trying to open any of the shares simply tells me "Windows cannot access \\192.168.1.240\share You do not have permission to access ..."; it never asks for a domain password. I also tried Windows7 native VPN functionality - it couldn't successfully connect to the VPN at all. I suspect this is because SonicWall is using some obnoxious special/undocumented authentication system; I had similar problems trying to connect on Linux with the normal IPsec tools there. What magical invocation or control panel option am I missing that will let this work? Are there any reasonable debugging strategies? I'm feeling quite frustrated at Windows tendency to not give me much useful information that might let me understand what it is trying to do and what is going wrong.

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• Exporting Client Data from Groupwise 6.5 to Outlook 2010 without Crashing

  - by Adam Doherty

  My employer has recently moved from Novell GroupWise 6.5 to Exchange 2010. We've imposed mailbox limits on staff but we still need to move their old messages, contacts, calendars, etc. over to Outlook 2010. Our problem however is this, utilizing the Novell MAPI client is slow within Outlook 2010 and upon exporting messages to a PST file (for later re-attachment, and offline backup purposes) crashes the GroupWise server. Connecting to the server in Outlook via IMAP to export messages to PST is faster and apparently more stable but also crashes the server. We'll be keeping our GroupWise server online internally until then end of the year but I have staff with mailboxes approaching 12 gigabytes, which is fine if we're going to move the data to offline storage (DVD set) but if I keep crashing the server every time I try to get the data I'll just be spinning my wheels. In my first attempts, I tried to move mail for a staff member with 3GB of data. The transfer lasted roughly 8 hours before crashing. I'm wondering if there is an open source solution to my problem. Paid solutions exist but we're a not-for-profit organization and have too many staff to justify the costs of per seat licenses just to migrate mail.

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• Mysql, SSL and java client problem

  - by CarlosH

  I'm trying to connect to an SSL-enabled mysql server from my own java application. After setting up ssl on mysqld, and successfuly tested an account using "REQUIRE ISSUER and SUBJECT", I wanted to use that account in a java app. I've generated a private key (to a file called keystore.jks) and csr using keytool, and signed the csr using my own CA(The same used with mysqld and its certificate). Once signed the csr, I've imported the CA and client cert into the keystore.jks file. When running the application the SSL connection can't be established. Relevant logs: ... [Raw read]: length = 5 0000: 16 00 00 02 FF ..... main, handling exception: javax.net.ssl.SSLException: Unsupported record version Unknown-0.0 main, SEND TLSv1 ALERT: fatal, description = unexpected_message Padded plaintext before ENCRYPTION: len = 32 0000: 02 0A BE 0F AD 64 0E 9A 32 3B FE 76 EF 40 A4 C9 .....d..2;.v.@.. 0010: B4 A7 F3 25 E7 E5 09 09 09 09 09 09 09 09 09 09 ...%............ main, WRITE: TLSv1 Alert, length = 32 [Raw write]: length = 37 0000: 15 03 01 00 20 AB 41 9E 37 F4 B8 44 A7 FD 91 B1 .... .A.7..D.... 0010: 75 5A 42 C6 70 BF D4 DC EC 83 01 0C CF 64 C7 36 uZB.p........d.6 0020: 2F 69 EC D2 7F /i... main, called closeSocket() main, called close() main, called closeInternal(true) main, called close() main, called closeInternal(true) connection error com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Any idea why is this happening?

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• Checkpoint VPN-1 R60 and Windows 7 64 Bit Client

  - by Mohit

  As per my knowledge of checkpoint VPN-1. My company is using checkpoint VPN-1 R 60 ( I guess as I dont know how to check server version) Firewall(VPN Server). Now the problem is that I installed Windows 7 64 bit. But, after my research I found that there are not even one client (SecuRemote/SecuClient) for Win7 64 bit, when Firewall or server is R60. I thought of some open source solutions. Can you guys please suggest me some with the configuration required. As of now, I know the IP of the server. I know my username and password using which I connect and that is not my domain password. that i can confirm to you guys. I am not a network guy. I am more of a developer. But, I need some help in this.So, let me know if I can provide you more details. Please please i need urgent help on this.

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• Exchange Online SMTP Not Working With Any Email Client

  - by emre nevayeshirazi

  I am trying to switch our company mail server to exchange online. I have successfully added my domain and users and can send and receive mails through Outlook Web App. I can also send and receive if I configure my Outlook 2013 client using Exchange protocol. However, some folks in company are using Thunderbird and some old Outlook Clients. For those, I tried to connect to Exchange via IMAP/SMTP. This is what I use, For incoming, IMAP / Port : 993 with SSL / Host : outlook.office365.com For outgoing, SMTP / Port : 589 with TSL / Host : smtp.office365.com I can receive emails, however I could not be able to send emails. I keep getting An error occurred while sending mail. The mail server responded: 4.3.2 Service not active. Please verify that your email address is correct in your Mail preferences and try again. My username and password are correct, I am using my mail address as my username to mailbox. I also tried sending mail via C# application which was working for outlook.com and gmail.com SMTP settings. It also fails to send emails and returns the same error code. I thought TB and other old clients such as Office 2003 might not support Exc. Online so I tried same settings in Office 2013. It successfully connected my mailbox when checking for configuration but failed in sending test message and returned the same error code. Configuration for incoming and outgoing mailbox are taken from here. They are also available on Office 365 user page and they are same. What could be the reason for error ?

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• Filezilla client unable to get directory listing from Filezilla Server (Windows)

  - by sestocker

  I've set up a self signed certificate in FileZilla server and enabled FTP over SSL/TPS. When I connect from the client FileZilla, I am able to authenticate but cannot get a directory listing: Status: Connecting to MY_SERVER_IP:21... Status: Connection established, waiting for welcome message... Response: 220-FileZilla Server version 0.9.39 beta Response: 220-written by Tim Kosse ([email protected]) Response: 220 Please visit http://sourceforge.net/projects/filezilla/ Command: AUTH TLS Response: 234 Using authentication type TLS Status: Initializing TLS... Status: Verifying certificate... Command: USER MYUSER Status: TLS/SSL connection established. Response: 331 Password required for MYUSER Command: PASS ******** Response: 230 Logged on Command: PBSZ 0 Response: 200 PBSZ=0 Command: PROT P Response: 200 Protection level set to P Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is current directory. Command: TYPE I Response: 200 Type set to I Command: PORT 10,10,25,85,219,172 Response: 200 Port command successful Command: MLSD Response: 150 Opening data channel for directory list. Response: 425 Can't open data connection. Error: Failed to retrieve directory listing I have ports 21 and 50001 through 50005 open on the firewall. We are migrating servers - the 50001 - 50005 is one of the things that helped get FTPS working on the old server. I'm not sure this installation would use the same ports? What else could be the problem?

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• Problems with connecting Thunderbird client to dovecot installed on Ubuntu

  - by Michael Omer

  I am trying to connect a Thunderbird client to my dovecot server. The dovecot is installed on Ubuntu. I know that my server works (at least partially), since when I send a mail to a user in the server ([email protected]), I see the new file created in /home/feedback/Maildir/new. However, when I try to connect with my Thunderbird to the server, It recognizes the server, but informs me that my user/password is wrong (they are not wrong). The exact message is: Configuration could not be verified - is the username or password wrong? The server configuration it tries to connect to is: incoming - IMAP 143, outgoing - SMTP 587 The dovecot configuration file is located here: dovecot.conf My PAM configuration is: @include common-auth @include common-account @include common-session In the log, I see: May 23 06: 07: 20 misfortune dovecot: imap-login: Disconnected (no auth attempts): ? rip=77.126.236.118, lip=184.106.69.153 Dovecot -n gives me: Log_timestamp: %Y-%m-%d %H: %M: %S Protocols: pop3 pop3s imap imaps Ssl: no Login_dir: /var/run/dovecot/login Login_executable(default): /usr/lib/dovecot/imap-login Login_executable(imap): /usr/lib/dovecot/imap-login Login_executable(pop3): /usr/lib/dovecot/pop3-login Mail_privileged_group: mail Mail_location: maildir: ~/Maildir Mbox_write_locks: fcntl dotlock Mail_executable(default): /usr/lib/dovecot/imap Mail_executable(imap): /usr/lib/dovecot/imap Mail_executable(pop3): /usr/lib/dovecot/pop3 Mail_plugin_dir(default): /usr/lib/dovecot/modules/imap Mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap Mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 Imap_client_workarounds(default): tb-extra-mailbox-sep Imap_client_workarounds(imap): tb-extra-mailbox-sep Imap_client_workarounds(pop3): Auth default: passdb: driver: pam userdb: driver: passwd

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• Verify client certificate CN in Tomcat(APR)

  - by Petter

  I'm running a tomcat installation with the APR libraries installed (with the OpenSSL HTTPS stack that comes with it). What I'm trying to do is to lock a specific HTTPS connector down to users of a specific certificate. Adding client certificate verification is no issue, but I can't get it to validate against a specific Common name only. I was perhaps a bit naïve and thought the mod_ssl attribute SSLRequire typically used in Apache Httpd would work, but that property is not recognized by the Tomcat implementation. (http://tomcat.apache.org/tomcat-7.0-doc/config/http.html#SSL%20Support points to some mod_ssl docs, but the Tomcat implementation does not seem to cover all aspects of mod_ssl). I can get this to work by using the Java version of the connector instead of APR (losing some performance) and just add a trust store with that one certificate in it. However, using openssl without the SSLRequire expressions, I'm not sure how to do this with Tomcat7 (on Windows if that matters). <Connector protocol="HTTP/1.1" port="443" maxThreads="150" scheme="https" secure="true" SSLEnabled="true" SSLCertificateFile="mycert.pem" SSLCertificateKeyFile="privkey.pem" SSLCACertificateFile="CABundle.pem" SSLVerifyClient="require" SSLProtocol="TLSv1" SSLRequire="(%{SSL_CLIENT_S_DN_CN} eq &quot;host.example.com&quot;)"/> Can you suggest a way to make this work using Tomcat/APR/OpenSSL?

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• Persistent routes for DD-WRT PPTP VPN client

  - by Tim Kemp

  My home network in the USA is behind a Buffalo router (G300NH) running their version of DD-WRT. I use the built-in PPTP VPN client to connect to a VPN provider in the UK. I route certain traffic over the VPN (so it has a UK source address, for various entirely legal reasons) which I achieved by following the instructions in the DD-WRT docs and my VPN provider's own instructions. I placed two commands like this in the firewall script: route add -net xxx.xxx.0.0 netmask 255.255.0.0 dev ppp0 route add -net yyy.yyy.0.0 netmask 255.255.0.0 dev ppp0 I didn't put any of the iptables rules in since it my setup doesn't seem to need them. It works like a charm. Traffic to the xxx subnets goes over the VPN, everything else goes out over my ISPs own pipes. The problem comes when the VPN drops, which it does occasionally. DD-WRT does a fine job of reconnecting it automatically, but the routes are trashed every time that happens. How do I automate the process of re-establishing my routes? I thought about static routes, but the IP address of the VPN connection is dynamically assigned (which is why I'm using dev ppp0). Many thanks, Tim

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• Copying compressed files from Server 2008 R2 network share to XP client via VPN fails

  - by Dejan Janjuševic

  At the first sight the question looks similar to this one. I have experienced an odd behavior while trying to copy a certain file from Windows Server 2008 R2 network share to Windows XP Professional client via VPN. The VPN was set up using RRAS on the server machine. I will try to provide as much informations as possible in order to make the issue more clear. When trying to copy the compressed file sized ~2.5 MB (via Explorer or CMD, doesn't matter), the process stalls after some 20%, producing an error message after few seconds: Cannot copy filename: The specified network name is no longer available. If i start the command ping -t 192.168.2.1 (where the IP address specified belongs to the server) side by side with the copy command, I can clearly see that the ping command times out for few seconds as the copy process stalls. When this happens all network activities are frozen. After a few seconds, the network recovers, ping continues to run normally, however the copy process stands still before it displays the above error message. Copying other files (I tried 4-5 files), of which some are larger and some are smaller, succeeds. Seems to me that I can copy all uncompressed files. As soon as I try to copy an archive, the process freezes. Even a 707 KB large archive can't be copied. I can only reproduce this behavior on 2 machines, both Windows XP Professional, one is w/ SP2 and the other w/ SP3. Other XP clients don't have this problem, neither do Windows 7 clients. If I connect to the server using Remote Desktop Connection without using VPN from either of these 2 machines (using the same user account), I can copy anything I want normally, even these "problematic" files. Does anyone have any clue about what could possibly be going on?

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• How does Windows 7 DNS client work?

  - by Mark Allison

  I am using a local DHCP and DNS server on my home network on a linux machine. It is running CentOS 6.3 with dnsmasq 2.48. It's all working fine except for local DNS lookups for Windows machines only. I have a mix of Ubuntu, CentOS and Windows machines on the network, some virtual, some physical. I have a machine called boron and the domain is called localdomain If I ping boron from any linux machine, I get [root@lithium lists]# ping -c3 boron PING boron.localdomain (10.0.0.5) 56(84) bytes of data. 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=1 ttl=64 time=0.740 ms 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=2 ttl=64 time=0.478 ms 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=3 ttl=64 time=0.458 ms --- boron.localdomain ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2000ms rtt min/avg/max/mdev = 0.458/0.558/0.740/0.131 ms If I do it from my Windows 7 machine, I get: Ping request could not find host boron. Please check the name and try again. If I try ping boron.localdomain I get: Pinging boron.localdomain [67.215.65.132] with 32 bytes of data: Reply from 67.215.65.132: bytes=32 time=16ms TTL=57 Reply from 67.215.65.132: bytes=32 time=188ms TTL=57 Reply from 67.215.65.132: bytes=32 time=15ms TTL=57 Reply from 67.215.65.132: bytes=32 time=14ms TTL=57 Ping statistics for 67.215.65.132: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 14ms, Maximum = 188ms, Average = 58ms which is clearly wrong. Why is it going out to the internet? Why can't my windows machine resolve the boron hostname to a FQDN? My Windows machines and linux machines get their network config from DHCP. UPDATE If I do ipconfig /all in Windows, it looks as I would expect: Windows IP Configuration Host Name . . . . . . . . . . . . : lanthanum Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : .localdomain Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : .localdomain Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : 50-E5-49-38-FC-A2 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 10.0.0.57(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 23 August 2012 13:58:45 Lease Expires . . . . . . . . . . : 24 August 2012 07:58:48 Default Gateway . . . . . . . . . : 10.0.0.6 DHCP Server . . . . . . . . . . . : 10.0.0.6 DNS Servers . . . . . . . . . . . : 10.0.0.6 208.67.222.222 208.67.220.220 NetBIOS over Tcpip. . . . . . . . : Enabled When I do an nslookup I get: Server: carbon.localdomain Address: 10.0.0.6 *** carbon.localdomain can't find boron: Unspecified error However if I do ifconfig -a in Linux I get: [root@nitrogen ~]# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0C:29:AF:EC:2A inet addr:10.0.0.7 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:187687 errors:0 dropped:0 overruns:0 frame:0 TX packets:5857 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:23910700 (22.8 MiB) TX bytes:712964 (696.2 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:329894 errors:0 dropped:0 overruns:0 frame:0 TX packets:329894 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:67153143 (64.0 MiB) TX bytes:67153143 (64.0 MiB) and nslookup: [root@nitrogen ~]# nslookup boron Server: 10.0.0.6 Address: 10.0.0.6#53 Name: boron Address: 10.0.0.5 Both machines are on the same network using the same DHCP server. UPDATE 2 I thought the issue was resolved but I am getting intermittent DNS resolving issues but only on my Windows 7 machine. All my linux boxes are fine. This is what happens when I ping and nslookup from Windows to a Windows 2008 Server: C:\Users\mark>nslookup magnesium Server: carbon.localdomain Address: 10.0.0.6 Name: magnesium.localdomain Address: 10.0.0.12 C:\Users\mark>ping magnesium Pinging magnesium.localdomain [67.215.65.132] with 32 bytes of data: Reply from 67.215.65.132: bytes=32 time=267ms TTL=57 Reply from 67.215.65.132: bytes=32 time=162ms TTL=57 Reply from 67.215.65.132: bytes=32 time=510ms TTL=57 Reply from 67.215.65.132: bytes=32 time=146ms TTL=57 Ping statistics for 67.215.65.132: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 146ms, Maximum = 510ms, Average = 271ms And from Linux: [root@beryllium ~]# ping -c4 magnesium PING magnesium.localdomain (10.0.0.12) 56(84) bytes of data. 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=1 ttl=128 time=0.176 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=2 ttl=128 time=0.634 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=3 ttl=128 time=0.685 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=4 ttl=128 time=0.263 ms --- magnesium.localdomain ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3002ms rtt min/avg/max/mdev = 0.176/0.439/0.685/0.223 ms [root@beryllium ~]# nslookup magnesium Server: 10.0.0.6 Address: 10.0.0.6#53 Name: magnesium.localdomain Address: 10.0.0.12 UPDATE 3 I stopped the Windows DNS client on my Windows 7 machine with net stop dnscache and it is now working fine. It would be nice to get DNS working with the DNS client on, but I might be OK without it, what do you think?

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• Use WSUS without client configuration

  - by sc911

  Hello *, is there any way to let client-PCs use the local WSUS-server without having to configure them? What we need is a system to update PCs before they are delivered to the users. So the WSUS-server is accessible only within our lab, not later on at the users place. We'd like to use WSUS because it will fasten up the download very much. And we don't like to modify the clients as those changes might be forgotten to remove and then at the users place no update will be possible. So the easiest way would be, if one could redirect the normal Microsoft update, but I'm pretty sure that this will not be possible as this update will not be WSUS compliant. An other option I thought of might be, that the DHCP delivers an extra option telling the clients where to get the updates. But I could not find any information about this, so it looks like that this isn't possible too. So, is there any way? Or will it be easier to use a little script to change the WSUS-entries automatically? Regards sc911

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• Checkpoint VPN-1 R60 and Windows 7 64 Bit Client

  - by Mohit

  Hi All, As per my knowledge of checkpoint VPN-1. My company is using checkpoint VPN-1 R 60 ( I guess as I dont know how to check server version) Firewall(VPN Server). Now the problem is that I installed Windows 7 64 bit. But, after my research I found that there are not even one client (SecuRemote/SecuClient) for Win7 64 bit, when Firewall or server is R60. I thought of some open source solutions. Can you guys please suggest me some with the configuration required. As of now, I know the IP of the server. I know my username and password using which I connect and that is not my domain password. that i can confirm to you guys. I am not a network guy. I am more of a developer. But, I need some help in this.So, let me know if I can provide you more details. Please please i need urgent help on this.

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• Measure Upload Speed between a client and our server

  - by tresstylez

  We host a SAAS application specially customized for multiple clients. For one customer in particular -- they are reporting sporadic performance issues from various locations on their network, in particular UPLOADING documents through a form on our website. The client claims they have "bandwidth to spare" and that utilization of their "pipe" is so low that it MUST be our application, but our application has MANY clients and all features are working fine for all other clients. Interestingly enough -- DOWNLOADS (ie. just accessing the website, or downloading documents) is working fine. Speed test shows that they should get 1.2Mbps UP. So, a 3MB file should take 20 secs to upload. It takes 60+ seconds on their network. Sometimes even small files take OVER 10 minutes to upload or they timeout. Pings and Traceroutes don't show any abnormally long hops or response times. They claim other SAAS applications they use allow them to upload just fine. Both IT teams are working together to resolve this issue. What kind of data can I request from the clients to begin ruling things out. Seems like we need to somehow measure LATENCY of the networks involved or even at the switch level, we need to understand if packets are getting dropped somewhere and why. Where should I start? Any help is appreciated. I'll provide more info upon requests

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• TortoiseSVN client slows Explorer to a crawl in Windows XP running in Parallels

  - by Cory Larson

  I thought I'd make my first SuperUser question relatively simple, though it's the kind of question that may not get many responses as I'm not directly involved with the issue. A colleague does his development in Windows XP running in Parallels on his Mac. We've just migrated our VSS repository to SVN, and we've gone with TortoiseSVN as our client of choice with the Ankhsvn plugin for Visual Studio. On his XP instance, after installing TortoiseSVN, browsing through folders using Explorer is extremely slow; about 15 - 30 seconds before the contents of the next folder displays. It's the slowest when opening My Computer. Once he reaches a folder that contains the working content of an SVN project, Explorer behaves quickly again as expected. It seems that TortoiseSVN may be spending a bunch of time searching subfolders for stuff so it can do its icon-overlay thing, but that's just a guess. I've used TortoiseSVN for years on both XP and Vista on far less powerful machines without any issues with Explorer, so I'm attributing the slowness to it being run in a VM, though that may not be the actual issue. So has anyone encountered similar performance issues, and/or know of a fix? Keep in mind that any requests to make changes to his configuration will need to be communicated and thus my response time might be slow. Thanks everyone!

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• Client cannot access my IIS7 web server

  - by Soccerwiz

  I have a Windows 2008 web server on running IIS 7 with about 25 websites. One of those sites is an SaaS application that is accessed constantly throughout the day. However, one particular client keeps getting blocked from my server. They will be using the service, and then all of a sudden they cannot access the program, or any other site on the server. The entire office of 4 users is blocked from accessing anything on the web server. A trace route reveals they get all the way to the server before they are blocked. However, they can access a linux server that is a different VM with a different IP on the same physical server. Also, when they are blocked from their office, they can still access the site from their mobile phone or local Starbucks. They can also occasionally reset the router and gain access to the web server again as they are on a dynamic IP address. I checked IIS and allow all IPs to access the server. There is nothing in the logs the says anything about a user being banned. I really have no idea what is causing this? Could it be a virus on their end? I have even moved the SaaS to a completely new server in a different location, and they were working fine for about a month, and then the problem started occurring again. Are there any hidden blacklists in IIS? Or is it a routing issue on their end?

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• Windows preventing running of Telnet client

  - by palswim

  At first, I had issues because Windows 7 doesn't install the Telnet client by default (also, SuperUser has a thread). So, after installing it (and restarting, like Windows asked, though completely unnecessary), I opened a command prompt, and went to run my new Telnet program. I enter telnet, and receive: C:\Users\[USER]>telnet 'telnet' is not recognized as an internal or external command, operable program or batch file. "That's odd," I think to myself. So, in Windows explorer, I navigate to \Windows\System32 and see telnet.exe sitting in that folder. If I double-click on the executable file, the Telnet command prompt opens for me without a problem. So, I return to my Windows Command Prompt, and enter: C:\Users\[USER]>\Windows\System32\telnet.exe '\Windows\System32\telnet.exe' is not recognized as an internal or external command, operable program or batch file. And then (grep comes from cygwin): C:\Users\ryan\Desktop>dir \Windows\System32 | grep telnet Nothing. I've disabled UAC and have no idea why my Command Prompt is lying to me. Anyone experience something similar? To recap: In Windows 7, I have installed Telnet and can see it in my System32 folder, but cannot run it via a Command Prompt.

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• How to stop split tunnelling over cisco VPN (OS X)?

  - by Notre

  I'm using OS X (Snow Leopard) and the built in Cisco IP Sec client to connect to my corporate VPN. Currently, everything works as designed, and desired for most people. However, I would like to be able to funnel all traffic (particularly all web browser traffic) through the VPN. (Note - I'm an end user here, not the network administrator). Is this possible? In searching around, most people are looking to do the opposite; break out the VPN and enable split tunnelling of data. I'd like to avoid the split tunnelling. Is there some setting I can make in my OS X client to make this happen? I ran across a post where routing table changes are made to force split tunnelling: how to force split tunnel routing on mac -> cisco vpn I'm thinking something similar to that might work, but I'm not a networking expert so I'm not sure where to start (or if it is even possible). Thank you! Notre

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• jqGrid filtering on the client-side using "filterToolbar"

  - by cosminaru

  Hi guys, I have to add filtering to a jqGrid that is completely managed on the client side (data is only loaded once from the server). I need to use filterToolbar in order to filter the grid data, but couldn't find info if there is a default search mechanism on the client side. Is a server-side search the only way to do this? Thanks, Cosmin

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