CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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3
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1answer
567 views

Make RPM Satisfy Dependency Requirements of Other Installed Packages

So, I am installing a java app that I wrote which uses jnetpcap. This requires libpcap of at least v1.0.0. My CentOS 5.8 only has libpcap 0.9.4, which is required by other installed packages. I've ...
0
votes
1answer
4k views

How to remove Oracle Wallet using orapki?

Hi i'm on Centos using oracle 11g And i've created a wallet using : $ orapki wallet create -wallet /u01/app/oracle/admin/DB11G/wallet -pwd WalletPasswd123 -auto_login Now i want to remove it to ...
0
votes
4answers
4k views

How can I reinstall Network Manager after uninstalling it?

I am running a version of RHCE6 on my laptop, and lately I've been trying various stuff about network configuration through command line. Last night, I tried removing the NetworkManager using yum ...
5
votes
1answer
684 views

How can I make the eth1 up and always available for remote access, where eth0 will be used for host to host IPSec VPN?

I am running Amazon EC2 instance with Red hat enterprise linux, where I have two network interface. Now: eth0 is currently active having public ip where I am remotely logged in via SSH, to ...
7
votes
8answers
40k views

How to extend CentOS 5 partition on VMware?

I have a CentOS 5 virtual machine and I added 20GB more to disk size. How do I initialize and extend the available space? I'm new to Linux, so what should I do? I tried loading GParted as well, ...
1
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2answers
3k views

Installing Dovecot and Exim on CentOS 6.4

I've been looking for some guides on setting up a secure Dovecot and Exim mail server setup on CentOS 6.4, however it seems there's nothing out there. Does anyone know of any guides - or - if someone ...
0
votes
2answers
2k views

httpd error: Address already in use: AH00072

I have a server, CentOs 6.5 which were installed xampp by a friend of mine. But I thought it's best to install apache, php and mysql from yum. I have it removed simply by using this #rm -rf ...
3
votes
1answer
863 views

ioctl: invalid argument for HDIO_GET_IDENTITY

I wrote a program to get the details of hard disk drive using HDIO_ ioctl calls. For writing program, I'm referring Documentation/ioctl/hdio.txt in kernel source(2.6.32). Here is my main part of ...
18
votes
5answers
99k views

How to change hostname on centos 6.5?

Hi can't seem to change the hostname on my centos 6.5 host. I am following the instructions I found here: http://www.rackspace.com/knowledge_center/article/centos-hostname-change I set my /etc/hosts ...
2
votes
1answer
2k views

Unable to use yum repos whether with baseurl or mirrorlist in CentOS 6.5

Since a couple of days, I'm unable to retrieve repositories data with Yum, in my CentOS 6.5 server. I did yum clean all a dozen of times, it emptied all but didn't solved the problem. I tried to ...
0
votes
1answer
960 views

CentOS 7 won't serve static https content, why not?

I just re-installed httpd and created a static index.html file. I have firewalld configured to allow internet access to the https service. But when I type https://my.server.ip in a web browser, the ...
1
vote
0answers
24 views

how do I mount an external hard drive connected via SATA Wire to CentOS 7

I have CentOS 7 installed as a guest OS inside VirtualBox running on a Windows 8.1 machine. There is a SATA Wire connecting the machine to an external hard drive that used to contain a dual boot ...
0
votes
1answer
39 views

why are colors mixed up in CentOS 7 terminal?

I have CentOS 7 running as a guest OS inside a VirtualBox host. I opened a terminal to write some commands, but the colors are all messed up as shown in the following print screen: It looks ...
6
votes
5answers
20k views

How to solve “building the main Guest Additions module Failed”

I tried to install the VirtualBox Guest Additions module in a VM guest running CentOS but I get this error message when everything else was okay: building the main Guest Additions module Failed ...
1
vote
2answers
62 views

Creating Group and User for Tomcat RHEL/CentOS

I newbie I want to create an user for my Tomcat installation, but I was viewing multiple options: # groupadd tomcat # # useradd -g tomcat -d /usr/local/tomcat tomcat # useradd -g tomcat -c "Tomcat ...
3
votes
4answers
5k views

Slow start of Midnight Commander on CentOS

Is there any way to prevent mc from taking 10-30 seconds to open? Never seen this with Debian.
1
vote
1answer
128 views

Cannot start NFS in Centos 7

I can't start an NFS server in CentOS7. The packages downloaded: yum -y install nfs-utils yum -y install nfs-utils-lib Enable/start services systemctl enable/start rpcbind systemctl enable/start ...
0
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0answers
86 views

Nvidia nouveau driver problem on CentOS 6.6

I'm having problems using the nouveau driver for my Nvidia GeForce 9100. Xorg starts up and works fine, I am able to use everything, although in /var/log/Xorg.0.log I have: $ cat /var/log/Xorg.0.log ...
0
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0answers
18 views

1920 1080 resolution is not showing up [VBOX Cent OS 6.6] [duplicate]

MY /etc/X011/xorg.conf has the following configuration, but its not showing up 1920x1080 resolution in Guest centos 6.6 Section "Monitor" Identifier "Monitor0" VendorName "Monitor ...
1
vote
1answer
53 views

Files in folder /run/udev/data

Does someone know, when and how the files in this folder /run/udev/data are generated. I ask because I have a program, which needs udev in jail. But the version in jail is newer (version 208) than ...
1
vote
1answer
483 views

How to block the social websites in centos through proxy?

I am installed squid in centos system. Blocked the social websites to all ip address through squid in my server systems. But someone access social websites through proxy websites, because lot of proxy ...
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0answers
13 views

CentOS 6.3 - Firefox icon missing after reinstall

On CentOS 6.3, I have reinstalled FireFox to latest version using following set of commands: yum remove firefox cd /usr/local wget ...
1
vote
3answers
3k views

New local user can't login to vsftpd

I'm a bit puzzled with this one and could really use some help. We have a CentOS 6 box running VSFTPD as a dropbox for our customers. Each customer gets a local user and is chrooted to their home ...
1
vote
1answer
3k views

Named service won't start - seems to be caching errors

When I try to restart / start the named service, it keeps failing. service named restart Results in:- Stopping named: [ OK ] Starting named: Error in ...
0
votes
1answer
20 views

How to exclude .jpg, .jpeg, .png, .gif from a ClamAV Scan (clamscan)

As the title says. I'm running a clamscan command to scan my users home directories, I'd like to exclude images from the scan as these sites specifically have thousands of images. M
1
vote
1answer
20 views

Trying to install a cluster, DHCP failing to start

Trying to install a linux cluster using this tutorial. I am running CentOS 6.3. When I try to start DHCP with service dhcpd start, it fails. I've used tail -f /var/log/messages and dhcpd -t, but I ...
1
vote
2answers
30 views

What is the equivalent CentOS for Red Hat Enterprise Linux 6.5?

According to CentOS website, they use the source code from Red Hat, but I am not clear about what version of Red Hat source code is being used to build each version of CentOS. Is there a numeric ...
0
votes
0answers
21 views

Have kickstart install TCPdump

I have a kickstart file for RHEL 6 and in the package section for the installing of the TCPdump command line utility I put tcpdump as the package name. Like I did with java and g++ in the kickstart ...
1
vote
2answers
30 views

Using rsync to Synchronize Directories

I have a script that I am using to backup a directory on a CentOS 6 machine. It's very basic but it is executing rsync -a remote:~/original ./backup Which works fine it is copying the contents of ...
2
votes
1answer
3k views

php5.6.2 installation with httpd24 ( apache version 2.4.10 ) on centos/rhel

using this repo : http://dl.iuscommunity.org/pub/ius/stable/CentOS/6/x86_64/ius-release-1.0-13.ius.centos6.noarch.rpm for php installation , and for apache i am using amazon linux repo current ...
0
votes
0answers
47 views

PuTTY does not connect over SSH; other clients work fine

I have a CentOS system that I can connect to using several SSH clients (FireSSH, WinSCP, MySQL Workbench over SSH). For some reason, PuTTY, which was working a few days ago, can not connect. It will ...
0
votes
1answer
37 views

CentOS 5.11: yum installs, but packages remain missing

I'm trying to figure out a very strange problem with yum on a fairly old CentOS 5.11 VPS using DirectAdmin. Executing the following command suggests the telnet package is installed: # yum install ...
1
vote
1answer
36 views

How do I get X to start without a monitor attached while using NVIDIA drivers?

card : Geforce GT 730 OS : Centos 6.5 I'm trying to demo HP RGS on a CentOS 6.5 machine located in a DC offsite. RGS requires X to be running with NVidia HW acceleration, but I can't get X to start ...
1
vote
1answer
413 views

Install SVN 1.8 on Centos 7

I've tried installing the newest version of SVN but nothing is working. On yum there is 1.7. When downloading rpm/zip error occurs when trying to configure. Setting some additional repositories ...
1
vote
1answer
24 views

luks volume disappears after reboot

I created a separate partition on a CentOS install (VirtualBox), and am attempting to encrypt it using cryptsetup and LUKS. I'm using the following commands to get this set up: cryptsetup luksOpen ...
0
votes
2answers
52 views

CentOS 6.6: OpenSSL version

I have a CentOS 6.6 system. When I type into command line openssl version, the system gives me OpenSSL 1.0.1e-fips 11 Feb 2013. When I type yum update openssl, then yum says No Packages marked for ...
0
votes
1answer
6k views

CentOS 6 not regestering new hostname on Windows Server 2003

I rebuilt a Windows 7 Workstation with CentOS 6.5. The Windows 7 had a host name aaa attached to domain ddd.local. The new CentOS hostname is bbb. When I try to ping it: $ ping bbb ping: unknown ...
0
votes
1answer
26 views

Terminal doesn't calls 'then' a syntax error, command not found [closed]

I am a newbie for linux. I have centOS7. I am running a very simple script from BASH. I execute the chmod command and then run the script file from terminal, I get an error saying that if command not ...
3
votes
1answer
5k views

CentOS 6.5 Login Screen GDM Issues

I have a few issues with the GDM login screen. I am using CentOS 6.5 and installed GNOME. I was able to change the background of the login screen by replacing the default.png image on the system. ...
1
vote
1answer
74 views

How do I troubleshoot these SELinux AVC errors?

Background: I have a CentOS 6 LAMP server. Recently the server has started to become unresponsive every few days. Originally, mysqld would throw a nagios alert and I would be unable to even ssh into ...
0
votes
2answers
1k views

Why can't I access to my ftp server with my local user account?

First of all I'm using Centos 6 server, putty and wordpress.org I followed the instructions from this link to set up vsftpd and ftp in centos server. For the vsftpd.conf file, these were the changes ...
0
votes
1answer
17 views

trouble with glib while installing Midnight Commander on centOS

I am trying to ./configure midnight commander downloaded from http://ftp.midnight-commander.org/mc-4.8.14.tar.bz2 and I get the following: checking for GLIB... no configure: error: glib-2.0 not found ...
1
vote
1answer
21 views

I tried to resize an ext4 partition and now the VM is not working

I tried to resize the primary ext4 partition and I think that i forgot to set the primary partition as bootable. Now the only thing I see from the VNC is the grub. I used fdisk to resize and ...
-2
votes
1answer
33 views

Is this a violation? using https service in intranet?

I have CentOS 7 servers in the cloud which is offering HTTPS services. Now this Enterprise cant use our services from cloud, so they wanted a local intranet solution, same like i am running in the ...
1
vote
1answer
643 views

Can't find vgaswitcheroo directory in CentOS6

I've installed CentOS6 on my laptop, which has a built in VGA and a discrete (AMD) VGA. I used to switch AMD video off in other distro's (e.g. Fedora, Arch) using: $ echo OFF > ...
0
votes
2answers
80 views

CentOS 7 update using “yum update” does not work

I have a VM running CentOS 7 that I have not used for a long time. Today I launched it and tried to update the CentOS system to the latest version using yum update, but I got a lot of errors: ...
2
votes
2answers
88 views

Automate slappasswd

I want to automate slappasswd, but the following does not work: [root@controller ~]# echo -e "vagrant\nvagrant\n" | slappasswd New password: while it works to automate passwd: [root@controller ~]# ...
0
votes
0answers
42 views

PHP 5.6.10 Bad Installation on CentOS 7 using Plesk 12

I upgraded the PHP version from 5.4 to 5.6.10 with remi and while I am trying to access to a file.php I can see the full code in "Source code". I was reading about that and it seems that the ...
0
votes
1answer
12 views

/var/lib/puppet/state/agent_catalog_run.lock exists

I'm seeing the following error on CentOS 6.4: # puppet agent --test Run of Puppet configuration client already in progress; skipping (/var/lib/puppet/state/agent_catalog_run.lock exists) What ...
1
vote
1answer
27 views

How to copy a installed library to a remote Linux host

I am a newbie on Linux and trying to host my Java project on a remote linux host(CentOS). My Project depends on some native libraries that needs to be existing in the host, and since it is a shared ...