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• Connecting to VPN via Proxy

  - by Rodrigo

  Hi, My company's VPN server is located in Netherlands, from my current location this is a really crappy place in terms of connectivity, connection keeps dropping, it's slow and keeps being reset during high traffic times. I have a dedicated server over USA which is able to connect to VPN server without this issues, connection is stable and fast. My question is, how do I connect to this VPN using a proxy running on my dedicated server? I'm on Windows 7 using a VM on XP to connect to the VPN. Thanks.

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• Oracle Installation issue on Oracle Linux 6.4

  - by Pradhyoth

  I am trying to install Oracle 11g(11.2.0.1.0) on Oracle Linux 6.4(Remote Server). I get the following error(s) when Database Configuration Assistant is running ORA-01092: ORACLE instance terminated Disconnection forced ORA-48210: Relation Not Found Can someone help me regarding this errors, I cant seem to find what exactly that I have to do to solve this issue. I have done the same install on Oracle Linux 5.7 but never faced this issue before. The only problem while installing(which happens on 5.7 too) is that the required packages fail, but upon checking, it seems much higher versions are already installed. Also I cant do a yum update because the system seems to have connectivity issues with public-yum.oracle.com as I cant ping it(even though the IP Address gets resolved)

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• ClearOS - how to avoid getting stuck at a fsck message at boot?

  - by Scott Szretter

  I have had this happen a couple times - I have a ClearOS Enterprise 5.2 box, and due to a power outage or similar, it ends up showing an error at boot and saying that fsck needs to be run (I think it said with (or without?) the -a parameter). The problem is, I need this box to be headless, at a remote location (miles away)! SO, I need to come up with a solution on how to either have it automatically repair itself, without someone to be present with a monitor and keyboard. Another possibility is to simply avoid the issue all together - maybe there is something that can be changed so it's very unlikely to happen (I am unable to avoid the power outage of course - at least not practically). Finally, maybe it can be boot off a read only media (cd) or file system or similar? At least the base OS, so that it would always at least boot with enough configuration that might allow remote access, or basic connectivity?

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• Cisco VPN Solution [on hold]

  - by Joey Harris

  Not sure if I can ask this type of question here so please delete if it should not be here. Im building a small server environment for a company and they are going to require a VPN gateway to connect to a main office from potentially anywhere in the world. I was hoping somebody could give me a recommendation on a Cisco product that can offer VPN connectivity for up to 100 clients and supports split tunneling. All products I've looked at are a few thousand dollars. I'm hoping someone can find me something that's only a few hundred dollars. I've seen the VPN Concentrator series but the modals that aren't thousands of dollars only support 4Mbps throughput. There will be file transfers going on so I'm hoping for something more then 500KBps.

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• Windows XP environment variable editor replacement that handles lines

  - by Codism

  I'm looking for an environment variable editor that handles linebreaks well. I have a monster %PATH% to edit (edited to save side-scrolling): C:\Program Files\Windows Resource Kits\Tools\;C:\Program Files\PC Connectivity Solution\;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem; C:\cygwin\bin;C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin;C:\WINDOWS \system32\WindowsPowerShell\v1.0\;C:\Utils;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\; C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\; C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\; C:\Program Files\MKVtoolnix;C:\Program Files\Common Files\Roxio Shared\ DLLShared;C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE I want the editor to put each path in a line and when I click save & close, for the editor put the lines back in the right format. Is there an editor that can do that?

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• Getting Partial / No Redundancy on VM's created on latest datastore

  - by Germano

  Hi, First some background. I'm in the process of upgrading my ESX servers from 3.5 to vSphere 4 and so far I have setup the new vCenter Server. Before I start the upgrade of the ESX, I needed more storage so I created 3 datastores from available space on my Equallogic PS6000 which has been connected for a while so as far as connectivity, nothing has changed. but now here's my problem, I get a "Partial / No Redundancy" on any VM that I create in any of these new datastores. I can create VM's on any of the older datstores on LUN's from exactly the same Equallogic and it works fine, but not the new ones. Keep in mind that these new datastores are the only ones that were created under the new vCenter, so I believe it must have something to do with it. Is anyone aware of any issues about creating datastored using the new vCenter but on a 3.5 ESX host? ISCSI with QLogic QLE406x Thanks in advance for nay help. Germano

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• ADSL connetion (BSNL dataone) with puppy Linux

  - by Vaibhav Garg

  I have an old PC which I want to use for internet browsing. I tried using Puppy Linux (version 4.3.1) for the same but have not been able to connect. I connect via PPPoE. My network card is RTL 8029b which is automatically detected by Puppy Linux. However, the LED indicator on the MODEM designating LAN connectivity stays off. This post is being typed from the same PC running XP, so there are no connection issues. I am a complete newbie for Linux. can somebody point me to instructions. I will be willing to give any more information if required. P.S. My MODEM is Huewei Smartax MT 882 Thanks

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• Windows 2008 RRAS and PPPoE

  - by Massimo

  I'm trying to use Windows Server 2008's Routing and Remote Access Server to share an ADSL connection which uses PPPoE, but I'm having no luck. I can setup the connection as a broadband Internet connection in Windows, and it works. I can share it using Internet Connection sharing, and it works (but it's not what I need). I have installed and enabled the Routing and Remote Access Service and configured it for NAT with a demand-dial interface; I create the aforementioned interface using PPPoE with the exact same parameters used on the Windows connection; I connected it, and it seems to work: I can also see it gets its public IP address and DNS assigned correctly. But it just doesn't work. The server has no Internet connectivity at all, and PINGing anything on the Internet results in a cryptic "general error". Any help?

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• Static IPv4 and dynamic IPv6 on same interface

  - by Zsub

  I am trying to set up a CentOS 5.4 box to use a static IPv4 address, while getting a dynamic IPv6 address at boot time. I have only one interface, apart from the loopback interface, eth0. It has a static v4 and internet connectivity (I can SSH in). However, it doesn't get an IPv6 by default. I have enabled IPv6 in /etc/sysconfig/network and I have added IPV6INIT=yes to the config in /etc/sysconfig/networking/devices/. If I use dhcp6c it does get a valid IPv6 address, but the main question is how do I configure it to get one at boot-time?

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• http, https and ftp is not working but smtp and imap is working

  - by Unicron

  hi all, yesterday on a computer of a friend a strange thing happened. after booting the ports fo http, https and ftp are closed but e-mail is still working. in the control panel the windows firewall seems active even if he tries to deactivate it. i have a suspision that it is the faul of norton internet security 2010, we have tried to uninstall it, but the uninstallation did not work. when using the removal tool from symantec it just goes to 23% and then it crashes. the process ccSvcHst.exe is still running. how can i safeley remove the rest of norton internet security? thanks in advance [edit] norton internet security 2010 is sucesfully removed, but still no connectivity

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• Ubuntu server failing daily

  - by deanvz

  Symptoms: Server becomes unresponsive - Increase in load, all services stop Loss of connectivity - Ping/SSH Flush MySQL hosts after reboot - As MySQL refuses new connections Intermittent Apache crashes Generally happens early morning hours - 2 days of the week are however excluded Changes made: Updated the OS - to Ubuntu 10.04.4 LTS Not sure if the MySQL server was also updated in the process Current MySQL version - mysql Ver 14.14 Distrib 5.1.63, for debian-linux-gnu (x86_64) using readline 6.1 Updated Plesk from 10.4.4 Update #47 to 11.0.9 Update #23 Rebooted on almost daily basis All crons stopped for the times corresponding to the server crashes Created a MySQL log to monitor the lock times on queries Possible causes: Failing hardware Incorrect software configuration (MySQL, Apache etc) Responsibilities: Small webserver Runs our billing system - WHMCS Responsible for CRONs Bulk-email solution - No delivery times coincide with server crashes Proposed solutions: Move machine over to VM Format and restore the Plesk server backup and take it from there? Side notes: Seems to be a general Apache failure across all our linux servers - Intermittent problem Are we doing something fundamentally wrong in the Apache config? (I understand that this is a secondary question, just making sure that it isnt possibly holding any relevance)

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• How to configure a wireless router to point to a remote www proxy

  - by Mark

  I have a LG smart Tv with browser. I need the tv browser to connect to a uk based proxy server on port 808. Unfortunately there is no option within tv to setup proxy for its browser. Now the Tv connects via a wireless connection to the internet. IE: TV <- D-Link DIR-605L <- ADSL <- WWW. Is it possible to setup this wireless router to connect the TV to the Proxy ?? If so ? where ? and what setings do i need to change in the wireless router ?? In short my question is ? How do i get the wireless router to make up for the lack of proxy connectivity within my Tv browser ?? Thanks in advance NB: I have configured my Pc's browser's proxy settings, and streaming via the proxy works 100%

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• Cloudstack virtual machines can't communicate with virtual routers when they are on different hosts

  - by Jorge Suárez de Lis

  I'm using Cloudstack 2.2.14 on a Ubuntu 10.04 set of hosts, and I have a problem on my setup. I have two hosts running. When a virtual router is created on host 1 and a virtual machine using that virtual router is created on host 2, or vice versa, I have no connectivity at all on the virtual machine. First of all, I have to setup the network manually on that virtual machine -usually DHCP is working, but not here-. Then, I can't ping to the virtual router from the virtual machine or vice versa. When both virtual router and virtual machine are created on the same host, everything works! Maybe those packages are being filtered somehow? I have no clue on how to proceed. Both hosts can communicate directly outside the virtualization.

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• How can I delete virtual networks from command line?

  - by David Cobb

  I have Hyper-V Server 2008 R2 (without GUI) running at my colo for a week. I was connected via RDP and could use the menu interface and command line. I figured out how to connect Hyper-V Manager from my Win7 laptop (THANK YOU HVREMOTE!), and created and installed my VM. I created a virtual network that didn't work (no connectivity from my VM) so I created another using different settings, and now have lost access to the Hyper-V host. No ping, no RDP. Since I don't have console access, I cannot troubleshoot. I believe if I deleted the Virtual Networks I'd regain access, but I need a command line instruction for this, that the staff onsite could enter to accomplish this. I find no help anywhere obvious (MSDN, etc), the keywords are too general. Can anyone refer me to simple steps how to do this over command line or with the menu based interface on the console?

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• Running bridged-networking vmware player on a Linux machine with 2 interfaces

  - by Roman D

  I have got a laptop running Arch Linux with 2 interfaces: wireless (wlan0) and ethernet (eth0). I use wlan0 to access internet (static IP, networking is configured using netcfg), and I connect a second PC to the eth0. Now, whenever I start vmware player (v. 4.0.4), it chooses wlan0 to connect its bridged virtual NIC to, but I need it to connect to eth0 (I want my guest machine to be able to talk to the second physical PC on eth0). So, I disable the wlan0 interface (netcfg -d wireless) and restart vmware. Now, it connects to eth0, and everything works fine; I can ping the host PC from the virtual one, and I can ping the virtual PC from the second physical PC connected to eth0. Then, if I try to reenable the wlan0 interface (netcfg -u wireless), all of the connectivity between the host and the guest (and between the second physical PC and the guest) gets lost, until I disable wlan0 again. Can someone please give me a hint on what's going on?

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• Windows 2008R2 two node failover cluster creation fails

  - by Francois Wolmarans

  We have just installed two Windows 2008R2 Enterprise machines with identical hardware. When running the cluster validation everything is ok. When creating the cluster it fails with the following error: An error occurred while creating the cluster. An error occurred creating cluster 'CLUSTER04'. The parameter is incorrect The logfile on the first node where we are running our config from, does not show any errors. On the second node we get: The Cluster service is shutting down because quorum was lost. This could be due to the loss of network connectivity between some or all nodes in the cluster, or a failover of the witness disk. I've double checked and all communication between the servers are fine. Even when creating a one node cluster it gives the error. There are other failover clusters we have setup without any issues.

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• Sending single emails works, but sending to the same email in a distribution list is bounced

  - by EvilChookie

  I'm running an Exchange 2003 server on a Telstra Business internet connection (in Australia). I'm routing emails through the SMTP connecter, using the host smtp.telstrabusiness.com When users send single emails to a single recipient, the emails are sent correctly. However, when users send emails to a distribution list, they bounce back with: The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient. One of the people in the list was able to recieve a single email from us just a few minutes afterwards, but did not recieve any of the email that should have come from the distribution list. Is there a way I can throttle the number of messages that Exchange will send at a time, so as not to appear as spam to Telstra?

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• dead man's switch for remote networking interventions

  - by ascobol

  Hi, As I'm going to change the network configuration of a remote server, I was thinking of some security mechanisms to protect me from accidentally loosing control on the server. The level-0 protection I'm using is a scheduled system reboot: # at now+x minutes > reboot > ctrl+D where x is the delay before reboot. While this works relatevly well for very simple tasks like playing with iptables this method has at least two drawbacks: It's not very reactive, ie a connectivity problem should be detected automatically if for example an automatic remote ssh command fails does not work anymore for x seconds. It can obviously not work if one need to modify some configuration files and then reboot to test the changes. Are you guys using some tool for the second point ? I would love to have something able to revert the system configuration in a previously known stable state if I can't join the server X minutes after reboot. Thanks!

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• Cisco asa 5505 locks up / unresponsive

  - by Chris

  We have a cisco asa 5505 that's new (in service for about 2 months) running 7.2(4) software. Every day around 10a it locks up for approx 10 minutes. We're monitoring it via snmp with stg, and snmp doesn't respond during that time. There's no output in the 'show crash' output. Internet connectivity is also dropped. Wondering if anyone else has seen this and what the fix might be. Currently we're looking at upgrading software, but will need memory upgrade for that. We've forced the speed and duplex on the internal and external interfaces, but the problem is still occurring. It's connected on the internal lan to a netgear 724 gige switch.

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• Agent admitted failure to sign using the key.

  - by Delirium tremens

  .ssh dir is chmodded 700, id_rsa.pub 600, id_rsa 400. I ran ssh-keygen -t rsa, imported key to launchpad and ran bzr branch lp:unity, but got error message: Agent admitted failure to sign using the key. Permission denied (publickey). bzr: ERROR: Connection closed: Unexpected end of message. Please check connectivity and permissions, and report a bug if problems persist. auth.log: Nov 28 20:23:13 ubuntu sudo: deltrem : TTY=pts/0 ; PWD=/home/deltrem/Documentos/repositories ; USER=root ; COMMAND=/usr/bin/bzr branch lp:unity Nov 28 20:39:01 ubuntu CRON[2959]: pam_unix(cron:session): session opened for user root by (uid=0) Nov 28 20:39:01 ubuntu CRON[2959]: pam_unix(cron:session): session closed for user root Nov 28 20:41:04 ubuntu gnome-screensaver-dialog: gkr-pam: unlocked login keyring

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• Windows 2008 DHCP service fails - "...failed to see a directory server for authorization."

  - by ewwhite

  I have a small environment running Windows 2008 R2 where the DHCP service on the domain controller fails every two weeks. The most-visible error is Event ID 1059 and the Event Viewer message is: "The DHCP service failed to see a directory server for authorization." The setup features two domain controller and the usual services and roles (file, print, Exchange). Restarting the service fails for a variety of reasons. I've had the following messages at different times: "Not enough storage is available to complete this operation". "Unable to determine the DHCP Server version for the Server 192.168.x.x" "The DHCP service has detected that it is running on a DC and has no credentials configured for use with Dynamic DNS registrations initiated by the DHCP service." A reboot of the domain controller resolves the issue for ~2 weeks. The systems are virtualized and there are no network connectivity issues. Any ideas what's happening here?

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• Switch computer off automatically when the internet is disconnected

  - by Vin

  Is there any free software that will detect the status of internet and shutdown the system when the internet disconnects? Or (more generally) can something run a task when the internet disconnects, and I can route it to shutdown the machine? I am downloading things overnight. But my problem is that sometimes the internet connection will be disconnected in the middle of the night, so there is no point in keeping the system running the rest of the night. So I need to avoid this problem by detecting the net connectivity.

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• Recommendation for e-mail forwarding

  - by Paul Mrozowski

  We currently have a provider that we use to primarily forward our e-mails to both a hosted Exchange site and to outside e-mail addresses. We have a large # of forwards set-up (maybe 500). They work fine for us but the bandwidth costs are a getting pretty expensive (approx 80GB in email a month) so we're looking for a less expensive alternative (it costs us nearly $150/mo). I've looked at just hosting this here via a PostFix server and one of the nice front-ends available for it. However, I'm not thrilled with the prospect of being responsible for maintaining yet another server, backups, network connectivity, etc. So I'm leaning towards having this hosted by someone else if possible. Does anyone have any recommendations for hosting providers? Are there some I should stay away from?

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• Asterisk: Forcing a sip peer to connect via ipv6?

  - by growse

  I've got an asterisk server that connects to an upstream provider over a WAN. The upstream provider supports both IPv4 and IPv6 connectivity, and the asterisk server is behind a NAT. When asterisk connects to the upstream sip peer via IPv6, everything works perfectly. The issue I have is that when I configure the asterisk server IPv6 address via DHCPv6, a race condition means that asterisk sometimes ends up attempting to contact the upstream peer via IPv4 (the SIP DNS name has both A and AAAA records). This is because asterisk starts up before the system has a valid IPv6 address. The connection does not work via IPv4 because of the NAT. Is there a way of configuring the peer to specify that it should only be contactable over IPv6? I guess it might be possible to hack together a firewall rule to deny all IPv4 traffic to that IP, but it'd be easier to configure this within asterisk itself.

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• fsck: FILE SYSTEM WAS MODIFIED after each check with -c, why?

  - by Chris

  Hi I use a script to partition and format CF cards (connected with a USB card writer) in an automated way. After the main process I check the card again with fsck. To check bad blocks I also tried the '-c' switch, but I always get a return value != 0 and the message "FILE SYSTEM WAS MODIFIED" (see below). I get the same result when checking the very same drive several times... Does anyone know why a) the file system is modified at all and b) why this seems to happen every time I check and not only in case of an error (like bad blocks)? Here's the output: linux-box# fsck.ext3 -c /dev/sdx1 e2fsck 1.40.2 (12-Jul-2007) Checking for bad blocks (read-only test): done Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information Volume (/dev/sdx1): ***** FILE SYSTEM WAS MODIFIED ***** Volume (/dev/sdx1): 5132/245760 files (1.2% non-contiguous), 178910/1959896 blocks Thanks, Chris

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