Questions tagged [centos]

Questions specific to the CentOS Linux distribution. Use this tag if your question relates to how the CentOS distribution affects your problem; do not use it if you just happen to be using CentOS and your question is about a specific configuration detail or syntax.

Adapted from CentOS.org:

The CentOS Linux distribution is a stable, predictable, manageable and reproducible platform derived from the sources of Red Hat Enterprise Linux (RHEL). Since March 2004, CentOS Linux has been a community-supported distribution derived from sources freely provided to the public by Red Hat. As such, CentOS Linux aims to be functionally compatible with RHEL. It mainly change packages to remove upstream vendor branding and artwork. CentOS Linux is no-cost and free to redistribute.

CentOS is developed by team of core developers. The core developers are supported by an active user community, including: system administrators, network administrators, enterprise users, managers, core Linux contributors and Linux enthusiasts from around the world.

Commercial support is offered via a number of vendors.

Using the CentOS tag

Use this tag if your question relates to how the CentOS distribution affects your problem; do not use it if you just happen to be using CentOS and your question is about a specific configuration detail or syntax (e.g. a shell script; a web server configuration question; user or group permissions).

Further reading

8363 questions
141
votes
12 answers

How can I fix "cannot find a valid baseurl for repo" errors on CentOS?

I finished installing CentOS 6, but when I tried running yum update I got: [root@centos6test ~]# yum update Loaded plugins: fastestmirror, refresh-packagekit Determining fastest mirrors Could not retrieve mirrorlist…
shivshankar
  • 1,538
29
votes
3 answers

CentOS - killall command (to kill all processes with names matching a given pattern)

I recently started using CentOS. I went to try to use the killall utility but found it missing, with me receiving a command not found message when trying to use it. How can I get this functionality on my system so that I can, for instance, kill…
21
votes
3 answers

How to check which specific processes (Python scripts) are running?

Using the command 'top' I can see 2 python scripts are running. However, how do I check their names or directory/location? I want to identify them so I can see what is running properly and what isn't.
User
  • 329
15
votes
6 answers

Kipmi0 eating up to 99.8% cpu on centos 6.4

We have CentOS 6.4 and the kipmi0 is showing as 99.8%cpu and 0.0% memory and load average is 1.00. What should we do to rectify on this?
biz14
  • 471
12
votes
3 answers

yum installation fails because of a saved transaction

I am trying to install some packages and yum fails every time stating that the package should be installed by load-transaction command. I want yum to fetch the packages from internet and install it as exiting in this way is lame? Please find the…
learner
  • 351
10
votes
3 answers

iptraf: command not found

I installed iptraf on CentOS 7 to monitor the network: [root@test ~]# yum install iptraf Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp.osuosl.org * extras: mirrors.usinternet.com * updates:…
Amin
  • 151
8
votes
3 answers

GLIBCXX 3.4.15 on Centos 6

I need to install GLIBCXX 3.4.15 on my Centos 6 version (to run a server for a game on Steam). I've googled around and had several websites where they installed programs where the error appeared where it said that 3.4.15 was needed (LoadLibrary…
PMint
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8
votes
3 answers

How do I check what distribution of CentOS 7 I have installed? (Minimal or Everything)

So I have CentOS running in a virtual box on my machine, and I downloaded the ISO from here. Problem is, I can't remember which distribution I used, the Everything ISO or the Minimal ISO. What is a good way to check for that in the Command Line…
8
votes
4 answers

" Cannot find a valid baseurl for repo: base/7/x86_64" on "yum update all"

I am using Centos 7.1.1503 (core) as a VM. The host OS is Windows 10. I created this VM so this is a fresh installation of CentOS. My laptop has a direct connection to the internet, without a proxy. When I execute the command yum update all I get…
KurioZ7
  • 513
8
votes
2 answers

Installing Epel repository on CentOS fails

This has been working on my vagrant vm for a few month without any issues. I didn't change anything, it has been vagrant up and vagrant destroy'd several times before with no problems. But now it fails and I can't find out what the problem seems to…
daniel
  • 131
7
votes
2 answers

Missing /lib64/libstdc++.so.6: version `CXXABI_1.3.8' and CXXABI_1.3.9' on Centos 7?

I'm trying to run a certain program and I get the errors /lib64/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by ./software1_runtime) /lib64/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by…
7
votes
1 answer

Increase Space of /usr directory in Cent OS

On my CentOS 5 server, fdisk -l outputs: Disk /dev/xvda: 100.0 GB, 100000595968 bytes 255 heads, 63 sectors/track, 12157 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id …
Astha
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7
votes
4 answers

How to install keepass2 on CentOS 7?

I am looking for instructions on how to install Keepass2 on CentOS 7 unfortunately no luck so far. Is there any rpm available anywhere? Any info will be much appreciated!
5
votes
4 answers

CPU monitoring tool for Centos

I'm looking for a CPU monitoring tool that could monitor the different processors in my machine, and also has a GUI (similar to the Ubuntu monitoring tool). Is there anything like that in Centos?
Omar Abid
  • 341
5
votes
3 answers

tracker-extract high cpu usage

I see that one of the users has a 100% cpu process named tracker-extract. I tried to terminate that based on the suggestion here, however, still I see that it is running. All users have such process but as you can see one of them consumes a lot of…
mahmood
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1
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