Software :: MRTG Stopped Working On CentOS CPU Only?
Feb 25, 2010
I recently migrated my mail server over to a new machine. For some reason, after verifying that the OIDs are correct, MRTG won't graph anything. I've quadruple checked the OIDs and used the strings as well, it won't graph at all. Graphs for RAM, ethernet, packets, etc. are working. CPU is the only thing not working. They work when I use snmpwalk with them and they do populate values. The logs show unknown SNMP vars for cores 1 & 2, but there's no mention of cores 3 & 4 entries in the logs.
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Apr 9, 2011
After upgrading to 5.6 I was trying things out and noticed for some reason the php on my server has stopped working. Anybody have a clue what's wrong ? I did read the release and it did mention the upgrade would then change my php.
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Sep 21, 2010
Is it just me, or has 'lock screen' stopped working in a recent update? I updated my install today and after rebooting I can't lock the screen... the screen saver doesn't lock it and if I select 'lock screen' manually from the menu then... nothing happens.
I even created a new user in case there was something weird in my configuration, but logged in as them I can't lock the screen either.
This is obviously a bit of an issue in an office environment as I don't want to have to log out every time I leave my desk.
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May 31, 2010
We are running CentOS 5.4 x86 on ESX 4 Server. We have a busy Help Desk, a Forum and several name-based websites running. Weve been using CentOS for this 'purpose for several years (different versions) and so far we have never had a problem. On Saturday, I applied all the latest updates including the Kernel updates. I rebooted the server and all seemed well until Sunday morning when I didn't get my Logwatch in the mail. Then I got a telephone call from a customer asking me why I hadn't responded to a Trouble Ticket he had created on Saturday afternoon (creating a TT sends an email via sendmail to all the support staff). I did a few tests and sendmail has just stopped working. The Logwatch had been created and had been sent to root, but all mail for root is redirected to my Mail Server on e different box (GroupWise). There was nothing wrong with the mail server, but sendmail has just stopped.
Fortunately I had created a snapshot before I applied the updates, so I reverted back to the snapshot and mail started working again, but I lost 2 days info because I had run the backup before I applied the patches. Now I see there are 132 Updates available, but there is obviously a problem somewhere in there!
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Aug 18, 2010
I built the system with one name and now want to change it.I do the usual things. change the /etc/hosts file change the hostname with the command hostname newname changed /etc/sysconfig/network and then mail stops working. Put it back to the old name and it works fine.So I am guessing I am missing something in the configuration for sendmail. I checked the sendmail.cf file under /etc/mail and no reference back to the hostname was found.I also tried the GUI on the console to change the hostbname.
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Oct 1, 2010
I have openssh running it was working last week then an update was done and now ssh does not work. removed the updates and the problem still exists.
Its CentOS 5.5 with all the latest updates for 64 bit!
Issue if as follows:
Connect locally to the loop back ip or remote ip the connection is disconnect right after the correct password is entered.
Here are copies of the log, sshd config.
sshd config:
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Jan 21, 2011
My mail server stopped working this weekend, when I got in today I restarted and all the emails came through. The panic_log shows: daemon: accept process fork failed: Cannot allocate memory several times over the course of a few minutes. Can anyone give me advice on troubleshooting this one?
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Aug 26, 2011
I have a 2TB hard-drive connecting via a usb port on my server for automatic backups. I noticed the backups had stopped working and then I realize I had lost the ability to communicate with the drive.
/sbin/lsusb gives:
Bus 005 Device 001: ID 0000:0000
Bus 002 Device 003: ID 046b:ff10 American Megatrends, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 002: ID 046b:ff01 American Megatrends, Inc.
Bus 001 Device 005: ID 059f:1018 LaCie, Ltd
[Code]...
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Sep 27, 2009
I have made sure the card is not muted using kmix, alsamixer, and running alsaunmute 0. It was working for some time and just stopped. I am not sure if getting rdesktop to work on the laptop caused the issue or not since that seems to be the last major thing I did. (missing my sipie.py). This is what I am working with:
~]$ uname -a
Linux xxxx.xxx.xxx 2.6.18-128.7.1.el5 #1 SMP Mon Aug 24 08:20:55 EDT 2009 i686 i686 i386 GNU/Linux
~]$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
[Code].....
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Apr 9, 2011
I've been administrating a dedicated Linux CentOS 5 (Linux 2.6.26.5-rootserver-20080917a) server for around 2 years, and although not a network or Linux expert, been learning to configure as need arises. Primarily using Plesk for day-to-day, but occasionally using Putty to SSH into server.
For all the time I've had the server, I've been connecting to my server via sFTP using "root" password. ( Although, I know this is really bad practice, I assume made safer by connecting with SSH FTP)
After spending another normal day in the office developing websites, connecting to my server as root using SFTP in Filezilla AND Dreamweaver I left for the night.
Returned next morning, after having done no manual updates or amends to my server; I could no longer SFTP into my server?
Thought it may be related to my office network, so tried it from home over the weekend, same result; can no longer connect SFTP for root?
I can connect to the server via Putty using my "root" username and password.
After spending hours looking on the internet for a solution, I'm lost for ideas as I didn't make any changes?
What happens when I open my Filezilla and try connecting as SFTP is it states:
Error:Connection timed out
Error:Could not connect to server
I checked server log /var/log/secure and it states:
Accepted password for root from UNKNOWN port 49212 ssh2
Apr 9 07:41:41 s15320264 sshd[7122]: fatal: Write failed: Connection reset by peer
Odd part is, it's worked fine for weeks, months without ever failing to connect?
Also, notice that Putty connection seems to take much longer to authenticate root user than it used to?
Checked via Plesk Health Monitoring and all CPU, Memory and Disk Levels are well below any alarm levels.
I have run all Plesk updates to 10.2.0 in the hope that it resolved it, but to no avail.
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Jul 26, 2009
Its been a while (maybe too long) since I last used yum to check for updates / install anything on my server, but when I tried the other day I got the following response:
# yum list updates
Loading "installonlyn" plugin
Setting up repositories
Error: Cannot find a valid baseurl for repo: updates[code]......
Trying other mirror.Error: Cannot open/read repomd.xml file for repository: updates
A few weeks ago there were some network changes, but nothing else should have changed OS side.I have checked /etc/resolv.conf and that looks ok - ping and wget have no problem resolving hostnames.I tried setting enabled=0 in yhe .repos files - this allowed me to do a 'yum list', but 'yum list updates' returned an empty list - I am definitely not 100% up to date!
P.S. Attachment not there at the moment - getting the following error when I try to upload the zip file...Errors Returned While Uploading
Failed to open directory with write permission: /var/wwwthtml/oldwebcopy.centos.org/uploads/newbb
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Feb 3, 2010
Yesterday I got my wireless network setup working and the tried to do a
yum check-update
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Apr 4, 2011
Are there any document or website for creating MRTG with CentOS 5.5 step by step?
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Jul 13, 2011
When originally installing 11.04 I had problems getting my Ralink 5390 wireless card to work.
Today my computer froze completely and I had to turn it off via the power switch. When I turned it back on, wireless was no longer recognized! My iPod can connect to the network just fine, so it must be an Ubuntu problem. There are no problems with my ethernet connection either.
I researched this and found several threads about blocking and unblocking wireless devices using the rfkill command. Well, unfortunately for me the rfkill command doesn't work. When I type sudo rfkill list or sudo rfkill unblock all, nothing happens; it just returns me to my bash prompt. I even tried uninstalling and reinstalling rfkill...nothing.
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Jan 22, 2010
Installed F12 a while back. Everything was working fine. Then I wanted to install perl-cpan, so when I run "yum install perl-cpan", or "yum update", it hangs on "Loaded plugins: presto, refresh-packagekit".
I've let it hang there for hours, nothing ever happens.
For the first week or so, Yum worked fine, I could manually update as I've done on other Fedora versions without any issue.
In the Gnome gui I have automatic updating disabled. As far as I can tell, yum-updatesd isn't running and isn't enabled. I wanted to update things manually for a while until I got this new box "settled in".
I know I can install cpan via other methods, but this strange behavior with Yum has me worried.
I ran all the "yum clean" commands, and now yum actually displays errors:
Trying other mirror.
I get these errors over and over.
I read up on how to edit the /etc/yum/fedora.repo and fedora-update.repo files to fix this, BUT, I have no such files...
This is what I have:
The other interesting thing is that my /var/log/yum.log is 0 bytes.
Yet the yum.log-20100101 is 209709 bytes and shows all the updates I did just a month ago...
Where can I download the repo files from? How can I fix the repository?
When I try "yum repolist" I get the same errors.
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Aug 3, 2011
I am new to Opensuse, I used Fedora for more than a year and installed OS 11.4 64bit to experience the awesome KDE that Opensuse offers. I added KDE 4.6 Stable: Index of /repositories/KDE:/Release:/46/openSUSE_11.4/x86_64 It worked fine since the install(I installed 11.4 this Saturday), suddenly yesterday I don't remember what I did, KDE stopped working. What happens is I login using kdm, then all the stuff loads up but when I try to open anything the whole KDE freezes. If I clicked the launcher on bottom bar it opens only at the beginning, then if I press anything inside the launcher things freeze. Then even the launcher freezes too.I rememeber doing 2 things I did before restart:1) I did sudo zypper dup2) I changed my theme to Qtcurve gtk look. I thought the problem might be because of the QTCurve theme and even uninstalled using alt+f2 command line restarted, no change
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May 14, 2010
resubscribed to Rapidshare and in the past could easily download my friend's discussion papers using the file manager called DTA that integrates into Firefox. I have taken out a new subscription to RS and instead of getting the files I am receiving small html referer files. In theory this should be corrected by ticking a direct download setting on RS, but it is making no difference. I can manually download the files so I am certain the files are on RS in full form. I am also successfully auto logging into RS and this means the name and password are being handed over correctly
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Mar 10, 2011
I have been running X applications over my ssh connection for a long time using the command ssh -Y servername.example.com -p 222 . About a week ago, I noticed that it no longer works. I also tried ssh -X servername.example.com -p 222 but again, no success.
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Dec 12, 2009
While on holiday skype on my laptop Fedora 11 just stopped working. It would no longer load. I tried removing it and reinstaling more than once now. the icon just sits there when clicked it does nothing. I have tried starting it from the applications folder same thing it does nothing. the program was working perfectly then it just stopped
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Jan 5, 2010
I am still struggling to get skype running on that platform, but it hardly works. First I tried to install skype-2.1.0.47-fc10.i586.rpm but it did not work, always ending in "Aborted (core dumped)".Then I found an entry in some forum and tried to use skype-2.1.0.47-fc9.i586. rpm, and it worked! I could make calls, the microphone was recognized and everything worked as it should be.
Until today. For reasons beyond my scope skype stopped working, and after I have looged in with my skype-name I got the above Aborted-message again. Even after the reboot of my Dell Laptop skype refused to work.I even installed all the recommended yum packages I found in this skype forum topic.Can anyone please advise me how to properly install a stable version of skype with Fedora 12? I searched the Fedora forums but did not use any useful entry.
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Mar 2, 2010
I've seen a couple of threads about recent issues with skype, but nothing like this. Since today my mic is not working in skype (it does work otherwise, for exmaple in sound recorder). I'm using F11 x64. Yesterday I upgraded to the last skype version, and today the mic wasn't working. I downgraded now, thinking that was the problem, but still the same issue, so maybe some update did this (I'm not sure if alsa or pulseaudio got any update yesterday or today).
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Aug 23, 2010
I've been running F12 and then upgraded to F13 this summer. All was working great until I came home from vacation and my F13 box hung. Upon reboot the X server will not start. I have a Nvidia 8400GS card and it's been working fantastic since I install the box last year. I have tried Nouveau and AKMOD Nvidia drivers to no avail. What info do you guys need to help me out???
Here is a snip from messages.log:
Aug 22 21:15:21 bigbertha kernel: [drm] nouveau 0000:01:00.0: nouveau_channel_free: freeing fifo 2
Aug 22 21:15:21 bigbertha gdm-binary[8620]: WARNING: GdmDisplay: display lasted 0.862857 seconds
Aug 22 21:15:21 bigbertha kernel: [drm] nouveau 0000:01:00.0: Allocating FIFO number 2
Aug 22 21:15:21 bigbertha kernel: [drm] nouveau 0000:01:00.0: nouveau_channel_alloc: initialised FIFO 2
Aug 22 21:15:21 bigbertha kernel: [drm] nouveau 0000:01:00.0: Allocating FIFO number 3
Aug 22 21:15:21 bigbertha kernel: [drm] nouveau 0000:01:00.0: nouveau_channel_alloc: initialised FIFO 3
Aug 22 21:15:21 bigbertha gdm-simple-slave[8666]: WARNING: Unable to parse output:
[Code]...
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Oct 25, 2010
it was always so intuitive to set up, but it suddenly stopped working between 2 hosts, and now refuses to setup.I looked for documentation for system-config-nfs on how to set up between 2 hosts to verify my methods, but there is absolutely no documentation online on how to set up the share with the utility after several hours of googling.Does anyone who where to find the documentation or have any idea why it took a dump and wont configure?
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Feb 26, 2011
I migrated a few VirtualBox vdi's to a new laptop. My Windows XP and 7 virtual hard drives imported nicely when I created and started the guests; however, Fedora bombs as soon as the boot progress bar completes. I get this error message: VirtualBox GUI has stopped working.
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Aug 8, 2010
My setup:
- scanner - Canon MP640
- sane 1.0.21
- xsane 0.997
Problem: xsane recognizes my scanner, but when I try to "Acquire Preview" or scan it doesn't do anything. It's like it can't communicate with the scanner. It waits till I click cancel.Sane is setup correctly - I tried skanlite and it works just fine
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Aug 16, 2010
I recently upgraded to 11.3 and must say am highly disappointed. Between the multitude of problems, and sudden lack of long standing tools ( Sax2, system repair, loss of functionality in software installer), this to me has been a major step backward.
Now I have found out Samba as well has stopped working, sort of. I can still copy from windows share to my Suse box, however copying from Suse to the windows share now results in an error, the details for which just say invalid argument. Also note there are no logs in /var/logs/samba so I don't really have a clue whats happening.
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Aug 22, 2010
My java-plugins stopped working. I can'tlog on to my webbank and Danish authorities without it. I've tried in Google Chrome, Konqueror, Firefox and Opera. None of them works. All browsers report that java is enabled. According to yast2 I have:
Code:
java-1_6_0-sun
java-1_6_0-sun-plugin
[code]...
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Sep 21, 2010
I have Firefox 3.5.11 for Opensuse Linux 11.2. This morning I tried to install an add-in and it was not compatible with Firefox. Now, Firefox will not load. I tried to reinstall Firefox through YAST but this did not work. How do I get Firefox working again?
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Feb 13, 2011
I made un update yesterday. Main change was from kde 4.5 to 4.6. Caliber stopped working. If I launch it from konsole, I have:
Code:
wrbbt:~> calibre
Traceback (most recent call last):
File "/usr/bin/calibre", line 19, in <module>
sys.exit(main())
[Code]....
RuntimeError: Failed to load the Progress Indicator plugin: the sip module implements API v8.0 to v8.1 but the progress_indicator module requires API v7.1
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Apr 13, 2011
After 2 years of good service and after I've changed IP addresses in the router from 192.168.1.2 to 192.168.1.102 my autofs stopped mounting my NAS with NFS. That was the only change.
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