CentOS 5 :: Gathering Additional Troubleshooting Information

Mar 30, 2010

One of our devices running CentOS 5--an 8e6 Technologies Enterprise Reporter network appliance--has started displaying the following three messages repeatedly, though not continuously.Best as I can tell, hard drive four may be experiencing sector errors.(The messages do differ slightly at times. For example, 16384 may instead read 49152 or 12285, and the two strings of colon-separated hexadecimal digits may also vary in content.)Other than these messages, the device seems to be running fine. Its internal diagnostics indicate no problems.I will, of course, call 8e6 Techonologies tech support. But, prior to that, I'd like to do some troubleshooting on my own. What other troubleshooting techniques may I employ to gather more information?

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CentOS 5 Networking :: Gathering Network Usage Of Xen / Virtual Machines?

Jun 23, 2009

I've run into a problem gathering usage for my xen virtual systems. With my old model I used to gather all network usage via my cisco devices using the the counters for each port. Each system had it's own port on the switch, and I tracked network usage accordingly. Now that I'm using xen for virtual systems, and multiple vm's share the same switch port, i'm not exactly sure what my best option is for tracking usage.

I thought I may be able to setup vlans on the switch, and bind each vm to a different vlan using vconfig... but it seems like there has to be a better solution than that.

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Server :: Centos 5.5 Box Troubleshooting ?

May 13, 2011

The server is booting up properly and the system is running. When browsing web sites on the sever and they seem to run fine. But when you make requests to it, it seems to take a long time to process stuff. Such as large mysql request. Even to the point it freezes. It seems that if you make a request of some sort it just over loads. I have checked the logs and the most I can get from it that one of my wiki sites that seem to be getting nailed with spam bots trying to getting which is one of the databaes that where repaired could be slowing it down A LOT. Now I did find a couple databases that where marked as crashed and they have been repaired. I am not really sure what is causes the errors since the HD space is fine, ram is fine, internet connection is fine...So I am not familiar with diagnoses linux as much as I am with a windows pc. I am not real shell friendly. I am not good with the basic troubleshooting commands to try and identify the source of the problem to correct it. Could anyone point me the way...

Thanks in advance and I apologize for being a ra-tard on these. I should know this stuff more than I do running a server like this. It was created in 2006 and has been problem free since. Another thing, mass emailing isnt working either. It may be mysqld related. Sorry for the fragments and such. It also seems the SMTP isn't working properly as well suddenly.

Another error I been seeing:

PHP Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 16 bytesPHP Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 16 bytes some times I see this as a 32 or 64 bytes as well.

FTP Connection: It is also slow when making ftp connects. It is extremly slow but they finally do complete. It can be just a simple connection to display content. Slow.

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CentOS 5 :: Snmp Troubleshooting- Not Able To Query Remotely

Feb 22, 2010

I have 2 Centos 5.2 install that cant be snmp queried from another machine and I am unsure of what to check next.

To make sure it was not an incorrect iptables rule i temporarily turned off iptabes with the same results. I have checked the hosts file and it is correct on both machines.

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CentOS 5 Hardware :: Cannot See Additional RAM Installed - Mac Pro

Dec 17, 2009

I have successfully installed Centos 5.3 on a Mac Pro which had 1 gig of ram. I upgraded to 5 gigs of ram and the OS cannot see the additional memory. I ran the command free -g and it showed me only 1GB of ram. I pulled the memory and put it in an identical Mac Pro running OSX and it saw the additional memory without any problem, so I know the crucial ram is good. Do anyone know if there is something I need to do in order for Centos to see the additional ram?

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CentOS 5 :: Get Additional Larger Screen Resolutions?

Sep 11, 2009

I am running CentOS within VMWare on my Lenovo T61p laptop. This laptop has Windows XP Pro installed on it. My problem is that the resolution in CentOS within the VMWare is way to small. There are only two selectable resolutions, both are way to small. How can I get additional larger screen resolutions?

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CentOS 5 :: Installing Additional Perl And Mysql?

Dec 9, 2009

I have a permission to use several CentOS5 computers that are connected to a server where all shared programs sit. Accordingly, all Perl users for example have an identical path to Perl (e.g. /export/user/bin). The administrator suggested I'll install all the programs I need (specifically Perl and Mysql) in my personal space, and then add them to the path before the already installed ones. Accordingly, I could add/change modules without "sudo" privileges, and without changing the global setting.

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CentOS 5 Networking :: Add An Additional IPv6 IP To My Already Present VPS?

Jul 28, 2011

I have configured IPv6 in my main server and I can ping IPv6 address (eg. google). but I want to do the same on my VPS.What do I have to do to add an additional IPv6 IP to my already present VPS (IPv4 configured)?I tried the web, but no complete info of doing so anywhere.

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General :: Operating System Will Be Effective In Detering The Gathering Of Viruses From The Internet?

Aug 25, 2010

Just a few words in the form of introduction.I have just purchased an older server to use on my home LAN.I understand that the use of Linux or Unix as an operating system will be effective in detering the gathering of viruses from the internet.I am totally unfamiliar with either system, but if this is the case, that's about to change.

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CentOS 5 Networking :: Fails At Determining IP Information For Eth0 (onboard NIC Asus P6T On Centos 5.3)?

Apr 28, 2009

I'm running a fresh install on an intel i7 system on an asus p6t deluxe v2 motherboard with the onboard NIC (Marvell Technology pci-e). I know the NIC is working as when I boot into the onboard OS that Asus provides (Asus Express Gate SSD)I have a working net connection.Booting up CentOS hangs at determining IP information for eth0 and eventually fails with the following error:PING xxx.170.30.1 from xxx.170.31.231 eth0: 56(84) bytes of data---xxx.170.30.1 ping statistics ---4 packets transmitted, o received, +3 errors, 100% packet loss, time 2999ms, pipe 3 failed.

RTNETLINK answers: file exists.
RTNETLINK answers: file exists.
RTNETLINK answers: file exists.

[code]....

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CentOS 5 Networking :: Is There Any Additional Configuration In Order To Make Network Stable

Jul 8, 2010

I have a webserver to host some system application to the public. the server have two network interface. I set eth0 with wan IP and eth1 with internal LAN IP.the reason for the internal ip on eth1 is to enable LAN pc directly access to the webserver application..is this configuration is ok. sometimes the server link down and i have to restart network to get it back to normal again.. Is there any additional configuration in order to make the network stable.

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General :: Add Additional Search Domains To The Resolv.conf Created By Dhclient In CentOS?

Feb 19, 2010

When my CentOS virtual machine boots it uses DHCP to get an IP address. It also overwrites resolv.conf with the DNS settings provided by the DHCP server. The DHCP server doesn't supply any search domains so I would like to get dhclient to put in a list of search domains when it writes it. How can I configure dhclient to do this?

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CentOS 5 :: Information About Customizing ISO Images

Nov 4, 2009

I know there are similar topics about this that have been posted, but the information I need I cannot find. Im in a situation where I have two new HP DL360 G6 servers, both have a HP Smart Array B110i Sata Raid Controller. Since the raid controller is so new CentOS 5.3/5.4 and RHEL 5.3/5.4 do not have support built into the installer.I do have a driver for the raid controller which I have used and successfully installed CentOS 5.3 on one of the systems.The reason I need to customize an ISO is because I need the raid controller driver as part of the installation disc. As these systems are servers and are going to be deployed remotely I will not have physical access to these systems if they need to be rebuilt. I also have to build machines remotely as well using iLO (having a floppy image or usb image of the drivers does not work through iLO).

The installation rpm's can be as is, I do not need to make any changes there. I just need to make sure that the raid controller driver is loaded into memory from the media rather than another media source, before the installer kicks in.

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CentOS 5 :: How To Change KVM Vcpu Information

Jan 17, 2011

CentOS 5.5 x86_64, the use of KVM virtual install WIN2003, show CPU information is QEMU Virtual CPU version 0.9.1

Some applications need to verify information on CPU, resulting in not running.

Information on how to modify the physical machine VCPU CPU information?

My CPU is a Xeon 5504 physical machine

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General :: CentOS 5.4 - Disk Usage Information

Mar 16, 2010

I am trying to get my head around my new server. I am using CENTOS 5.4 x86_64 with 300GB harddrive.

The 300 GB been partitioned with the following:

Device Size Used Available Percent Used Mount Point
/dev/md0 99M 18M 77M 19% /boot
/dev/md1 16G 8.7G 5.8G 61% /
/dev/md2 246G 40G 194G 18% /home
/dev/md3 4.8G 1.6G 3.0G 35% /var
/usr/tmpDSK 3.9G 432M 3.3G 12% /tmp

I have increased teh tmpDSK as it was getting full very quickly. My question is, what are these md0; md1, md2 and md3 are they harddrive partitions and as md1 is getting full will that have an impact on my sites.

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CentOS 5 Networking :: Unable To Retrieve Software Information

Feb 26, 2010

When I attempt to add software i get the following error:

Unable to Retrieve Software Information

This could be caused by not having available connection.

Cannot find a valid baseurl for repo: addons

To get my browser to work properly, I have to specify a proxy (manual) and use the IP address of our proxy server. After this, I'm able to get out through the internet
using my browser. Not sure why I fail to get software updates though. I used the same setting in Proxy - Control Center. Repository Manager show's CentOS-5 - Addons mirror list as :

[URL]

..and I can get to the site with the browser.

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CentOS 5 Networking :: Fails At Determining IP Information For Eth0?

Oct 7, 2009

I have been running into network issues lately with my CentOS 5 (installed on AMD Athlon X2 - 64 bit machine about 2 years ago). It was able to connect to the network fine until yesterday when I installed more memory into the machine restarted it.

Upon restart, the boot up was paused at 'Determining IP information for eth0' step for a while and booted with out connecting to the network. I tried restarting the network (/sbin/service network restart), but this is the error message I continuously get: Determining IP information for eth0...PING xxx.1.226.1 (xxx.1.226.1) from xxx.1.226.83 eth0: 56(84) bytes of data

[Code]...

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CentOS 5 :: VLC Doesn't Show Album Information With Music CDs?

Jan 1, 2010

Man VLC is a bit of a mess in CentOS.I can't get it to show album tracks when playing music CDs.

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CentOS 5 Networking :: Another Determining IP Information For Eth0... Failed?

Apr 1, 2010

I've seen this pop up a few times on the forum but my setup is slightly different. I have a PC with an ASUS P5N32-SLI Premium motherboard. I've just installed CentOS 5.1. Yes, I know this is ancient, but this is what they're developing on at work. I'm trying to get connected either via ethernet or wireless and neither one works. When I boot the computer to Window XP it does connect on ethernet. Ethernet should be easy so I'm concentrating on that. But I get "Determining IP information for eth0... failed." after a 'service network start'.Here is some other information that was asked on similar threads:

> uname -rmi
2.6.18-53.el5 x86_64 x86_64
> grep eth0 /etc/modprobe.conf

[code]....

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CentOS 5 Networking :: Unable To Retrieve Software Information?

Nov 19, 2010

I'm on a corporate network .

When I attempt to add software i get the following error:

Unable to Retrieve Software Information This could be caused by not having available connection.

Cannot find a valid baseurl for repo: addons

To get my browser to work properly, I have to specify a proxy (manual) and use the IP address of our proxy server. After this, I'm able to get out through the internet using my browser.

Not sure why I fail to get software updates though. I used the same setting in Proxy - Control Center.

Repository Manager show's CentOS-5 - Addons mirror list as :

[URL]

..and I can get to the site with the browser.

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CentOS 5 :: 5.3 - Install Exited Abnormally [1/1] - Terminals (F3 And F4) Don't Appear To Have Any Interesting Information

Jun 9, 2009

I'm trying to install centos 5.3 as part of AsteriskNow 1.5 on a SuperMicro server with main board type X5DA8 The anaconda fails with the following text visible:

[Code]....

Other terminals (F3 and F4) don't appear to have any interesting information on why it barfed. I tried it with a text install too, much the same result. I get this error with other Centos 5.n based Asterisk and GUI bundled mini distors too, specifically TrixBox

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CentOS 5 Networking :: AD Shares Browsing Doesn't Use Login Information

Aug 4, 2010

i've configured my laptop so i can use my domain account (active directory win 2003 DC) to logon to my machine. Now i'd like to browse and mount shares etc using my logon information. Now when i connect to a share with nautilus it tells me 'guest' can't log in and i need to re-enter my user info. This is a real pain since our passwords change often. Is there some way i can use PAM to authenticate? I've searched everywhere, but you only find info about the other way round (win->linux).

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Fedora :: Write A Program Which Would Get Information From A Webpage And Display The Information On Desktop Sort Of Like A Widget?

Sep 3, 2009

I'm trying to write a program which would get information from a webpage and display the information on my desktop sort of like a widget. I kind of remember there being something like this already made, but for the life of me I can't remember what it's calledDoes anyone know?

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General :: Monitoring Users' Download Information In The Proxy Server - OS Is CentOS

Jan 24, 2010

I have configured the proxy server. I want to observer users's download information. What should I need to do? Shall I install squint? what is the process? How do I monitor the users?

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CentOS 5 Networking :: Determining IP Information For Wlan0...SIOCSIFFLAGS: No Such File Or Directory

Oct 18, 2009

i wanted to learn linux, so i just installed Centos on a thinkpad x200. my wireless will not work. when i try to activate it i get this error:

Determining IP information for wlan0...SIOCSIFFLAGS: No such file or directory
SIOCSIFFLAGS: No such file or directory
# lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)

[code]....

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CentOS 5 Hardware :: Eth0: Error Fetching Interface Information: Device Not Found?

Nov 15, 2009

I have 2 network cards eth0 and eth1, for eth0 i set a manual MACADDR in network scripts. Ok so every time i boot, if the cable is plugged in, my eth0 fails to mount or i don't know.. i get this after bood when i type ifoncifg eth0 (eth0: error fetching interface information:Device not found). So i have to unplug the cable when i boot, then plug it in and do a service network restart.

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General :: Make NIS User Information Override Local User Information On Client Systems?

Jul 30, 2011

How would you make NIS user information override local user information on client systems? This is what I think is right? Add nis on the passwd registration file on the second line Is this correct?

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Debian :: Troubleshooting New Wireless Network?

Aug 16, 2010

I have had no problems connecting to any of my wireless networks in the past. Right now I am at a friend's house and can't get internet access with my laptop. I have entered the appropriate fields in /etc/network/interfaces (as I usually do)

auto wlan0
iface wlan0 inet static
address 192.168.2.64
netmask 255.255.255.0
broadcast 192.168.2.255
gateway 192.168.2.1

I checked this info with the router's web interface and everything seems fit. The network does not have a password. I have tried adding "wpa-ssid belkin5g" and "wireless-ssid belkin54g", and neither one works (can't ping the router after bringing wlan0 down then back up). I have also tried connecting with DHCP instead of setting a static address.

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Ubuntu Networking :: Win 7 Connection Troubleshooting?

Apr 1, 2011

I installed Gadmin-Samba and a eth1. Setup the info in gadmin for waht I could follow and then shared the bub folder in win7. Have direct cable between the 2 nics, they see each other, however Win 7 says "unidentified network" (with a bench) and no connection established. In Ubuntu Places/network folder it has "Windows Netork" folder, but its empty. What am I missing?

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General :: Not Able To Connect To Internet / Troubleshooting This?

Mar 21, 2010

I have an internet connection with 512kbs speed. I have PCLinuxOS installed on my laptop. when I boot the machine through PCLinxOS, I am not able to connect to the internet.

I am not getting IP/DNS entries/Gateway by my ISP. Can anyone please help me in troubleshooting this ?

But when the same Internet connection is connected to another Windows XP machine. Its working fine.

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