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
71 views

rpm macros on CentOS 6.5

Trying to create a spec file for a CentOS 6.5 system. The rpm should check release to add specific Requires: lines based on the OS version....and it doesn't work at all: Spec file snippet: %if ...
2
votes
1answer
52 views

Virtual Host only works when SELinux is set to permissive - why?

Wondering why my virtual hosts will only work when SELinux is set to "permissive". When SELinux is set to "enforce" my virtual hosts are ignored and default host is shown. Apache/2.2.15 (Unix) Here ...
1
vote
2answers
2k views

Can't wget from github, sslv3 handshake error

We have a script that downloads mod security from github that has recently started failing. The servers run CentOS 6 but RHEL 6 probably has the same issue. The output is: # wget ...
2
votes
1answer
129 views

set up centos7, configuration of ip

when I'm searching for ip setting of centos 7. Responed is centos 6.X 's or ealier, and I tried. But how is the default DHCP configuration of centos 7. Some configurations have been done like I want ...
0
votes
1answer
85 views

Create ssh root password

For some reason, after a plesk update, I can no longer login to ssh as root using my old password. I have tried to create a user with: /bin/bash & /bin/bash (chrooted) in plesk Which lets me ...
1
vote
1answer
37 views

How to update tcpdump?

I would like to update tcpdump on my computer (CentOS 6.5) which is currently old. I download the zip file from TCPDUMP/LIBPCAP public repository already but I don't know how to update with this file. ...
1
vote
0answers
46 views

Virtual Host setup works for one server, not another

Having an issue with my virtual host set up. Used this tutorial as a reference on both: http://youtu.be/wXIJMtwmPCE Apache/2.2.15 (Unix) on both servers. Seemingly Identical httpd.conf file on both ...
2
votes
1answer
1k views

Centos 7 and VNC access right?

UPDATE: I posted on the Tiger VNC forum and someone suggested that this may be a result of PolicyKit (now called PolKit, I believe). Does anyone know how to change this policy? These are all ...
0
votes
0answers
31 views

VMWare CenOS files disappear after reboot

Solved: I used install to hard disk file from CentOS desktop. after instalation I have two CentOS in VMWare player. The new installation saves everything. I've installed VMWare player and CentOS on ...
0
votes
0answers
67 views

port being in use not displayed in netstat output

In what scenarios port being used by a process don't show up in netstat -a output. I'm running jenkins on my machine. It's listening on port 8080. I'm trying to start another process that tries to ...
0
votes
1answer
99 views

Apache Virtual Host Include Not Working

Attempting to get my domain to redirect to the associated vitual hosts, but the Include is not working as expected and displaying the proper htdocs directory. It is still displaying the default apache ...
1
vote
0answers
44 views

Unable to start apache

I'm running CentOS7 in virtualbox on a mac (osx 10.9.3). Ultimately, I want to acces the website on my Guest VM from my Host. I can Ping and SSH to VM but I can't acces the webpage when entering the ...
0
votes
1answer
44 views

What's the default server root path (CentOS7)

In /etc/httpd/conf/httpd.conf line 36 the ServerRoot is set. Mine is : ServerRoot /etc/httpd But this returns a syntax error when I try to start httpd service. Can anyone give me the default ...
2
votes
1answer
121 views

Unable to access website hosted on virtual machine

I'm on a mac (osx 10.9.3) running CentOS7 in virtualbox. I would like to access the website hosted on the virtual machine. Browsing to the Guest IP returns webpage not available. I'm able to ping and ...
4
votes
1answer
747 views

ifconfig command not found

I've just installed CentOS7 as a virtual machine on my mac (osx10.9.3 + virtualbox) .Running ifconfig returns command not found. Also running sudo /sbin/ifconfig returns commmand not found. I am root. ...
2
votes
0answers
62 views

iptables hangs at applying rules

I have a set of rules that are supposed to give me the most protection before things like fail2ban and other things are added to the mix. The issue is that although everything checks out in the test, ...
1
vote
0answers
280 views

openswan l2tp/IPsec VPN server (NAT'ed)

I have searched for a solution for this problem for a few days now and cannot seem to find anything close to my situation (server is always NAT'd and clients are sometimes NAT'd). I am trying to ...
4
votes
3answers
6k views

Installed Centos 7 after Windows and can't boot into Centos

I wanted to setup a dual boot for Windows 7 and Centos 7 I had a Windows 7 machine with 500GB disk. I shrank the Windows partition to provide space for Centos 7 (roughly 230GB). I created a USB ...
0
votes
1answer
29 views

Cobbler+Kickstart $basearch problems

I'm using CentOS 6.5 with Cobbler 2.4 (from EPEL). I'm trying to use a heredoc comment to create a repo file (which works) without the $basearch being interpreted. What happens is the file is created ...
1
vote
1answer
58 views

'altinstall' python-devel; can't install psycopg2 on centos

I installed python2.7 on my centos 2.6.32-431.17.1.el6.x86_64 following these directions: http://toomuchdata.com/2014/02/16/how-to-install-python-on-centos/ #after the yum stuff... # Python ...
2
votes
2answers
102 views

Piping tcpdump traffic via SSH - but no root ssh access

The situation I would like to use Wireshark to analyze traffic on one of our servers, but I don't want to install Wireshark on the server itself. I understand that I can pipe tcpdump traffic via SSH ...
0
votes
1answer
148 views

Centos 6.5 from Desktop to basic server

I have already installed centos6.5 on a virtualbox, and I realized that I missed choosing the the basic server mode,can I change it now that the installation is over ?
4
votes
3answers
201 views

Lots of traffic between servers - where does it come from?

We have ten servers in two groups servers, and there is a lot of traffic between those groups - too much we think. We know this because of stats of our provider, but don't know how this traffic is ...
1
vote
2answers
2k 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 ...
0
votes
2answers
178 views

Yum on CentOS 7 repositories may be broken

Just got CentOS 7 on a new server and I went yum install httpd and it went fine. Afterwards I went yum install mysql-server and I got No package mysql-server available. I haven't messed up with the ...
4
votes
1answer
120 views

Poorly performing java application vs poorly performing server

This is a very generic question, but it has been coming up more and more often for me. I would like to try and determine an appropriate course of action for this generic case, as I think it could ...
1
vote
1answer
130 views

sssd: login problems with AD user

I've setup my samba4 DC to get account information from a central AD provider via sssd. What I'd like to do now is permit some subset of these users to login via ssh (to linux machines) or via RDP (to ...
3
votes
2answers
59 views

How to make Cron run

I am trying to set up cron to run the mysqlauditgrep command (its the MySQL 5.6 Utilities package). The mysqlauditgrep command is in bash. The command I am looking to run is: mysqlauditgrep ...
1
vote
1answer
63 views

How to Resolve a .so Dependency

I have a package (.rpm) on CentOS 6.5 that requires a .so file, which I also have on my machine. When I attempt to install the package I get an error stating unresolved dependencies regarding the .so ...
1
vote
0answers
144 views

VIA “Chrome 9 HC” graphics card causes blackscreen on CentOS 6.5

I'm using Centos 6.5 (i386, fully updated) and get a black screen, when trying to startx. Debian was able to run a Desktop-Environment on the same machine. My graphics card is: CN896/VN896/P4M900 ...
0
votes
0answers
259 views

Samba 4.1.9 returning “access denied” trying to change share perms from Win client

UPDATE: version mismatch seemed to stop happening for some reason, although not sure why/at what point. Have a "public" (within LAN...like this) read-write share on a CentOS 6.4 box running, ...
9
votes
2answers
806 views

( /etc/sysconfig/iptables ) “Manual customization of this file is not recommended.” Why?

Editing this file directly /etc/sysconfig/iptables can save me so much headaches so much time and so on... and yet on the very top of the file it says.. Manual customization of this file is not ...
0
votes
1answer
55 views

How to modify iptables rules via editing a file rather than interacting via command line?

In the history, i would simply edit a file and then reboot the whole server. i would clone the line that had port 22 open change it to 80 and then save the file.. and reboot the whole system so ...
1
vote
1answer
110 views

Logrotate does not work for httpd service [closed]

We have logrotate working for several Centos servers. One new server has a slightly different setup, and for some reason logrotate does not work for the httpd service. When I start it manually, it ...
0
votes
0answers
205 views

Nvidia ethernet port not detected on Centos 7

When I tried to install Centos 7, my Nvidia ethernet port was not detected during the installation, whereas in all other distros it works perfectly without any problem. My rig is an AMD Athlon x2 64 ...
0
votes
1answer
34 views

Extending swap on Centos

I recently created a swap file on my centos 6 based VPS using this guide. Now I wanted to extend this swap and I was reading through this guide. However, I think I've created a swap file than a ...
0
votes
1answer
57 views

Is there a quick way to download a directory in a repo?

I'm actually working from a windows machine, attempting to retrieve centOS 5.4 from their vault. I don't have unpacking software, so I don't want to use the iso's. I was wondering if there's an easy ...
1
vote
1answer
85 views

How to give Root privileges for User in Centos 6.2 minimal

I installed Centos 6.2 minimal x86_64 server in Virtual Machine Manager. After installed I created Username in the server. And I added the User into a wheel group. # useradd testuser # ...
1
vote
1answer
23 views

centOS on a flashdrive

I am considering installing centOS to a flash drive, using command line only. I plan on using centOS to become familiar with Redhat and get better at utilizing it as a system admin. What is a ...
2
votes
1answer
128 views

I cant save files in /var/www/html

I'm running Centos 6.5 and I'm having problems saving my files to /var/www/html. The folder currently belongs to root and I have gone through everything from SELinux to configuration procedures, but ...
2
votes
0answers
225 views

Ping command results in packet loss

Whenever I ping on my personal computer, nothing gets displayed other than a single statement. Upon stopping execution, I see that several packets were transmitted in the statistics. On top of all ...
1
vote
1answer
207 views

How to run java service as a non-root user on CentOs 6

I have a script that starts a Java application as a service on CentOS 6: #!/bin/sh # chkconfig: - 80 20 SERVICE_NAME=cn4server PATH_TO_JAR=/usr/local/share/myserver/cn4server.jar ...
2
votes
3answers
120 views

What iptables command do I need to allow web server traffic?

I have a hard time understanding iptables rules. I am running a centos 6.5 VM on my laptop (vmware hypervisor) and it looks like it comes with this setup for iptables: # iptables -L Chain INPUT ...
6
votes
4answers
7k views

CentOS 7 Installation Failed

After hearing the news that CentOS 7 had been published, I decided to install it on my computer. I downloaded the ISO image from the CentOS official website (the one named ...
2
votes
2answers
28 views

centos5 maximum memory setting for all users

I'm using Centos5 for operating server and the machine has limited memory. There are many users using the server and some of them are running programs which use a lot of RAM. When I check the used ...
2
votes
0answers
44 views

Transparent Proxy

I am setting up attempting to set up a transparent proxy on CentOS using Squid. So far I have managed to filter the content and get it working perfectly. The only issue I am having is getting a form ...
0
votes
1answer
47 views

varnish start failed + nginx

I did install varnish with this guide. Then I want to start it, but FAILD and I cannot start varnish. I ran it in debug mode and I got this error: No VCL Available ! What is the problem here? Also ...
3
votes
1answer
58 views

SSHD Password Feedback (Show Asterisks for Characters)

Is it possible to have SSHD show asterisks for the password characters much like pwfeedback does for sudo? I am using CentOS 6.5. For example:
1
vote
1answer
36 views

How to activate t1lib?

Using CentOS el6.x86_64. I installed t1lib this way: Installing RPMForge Repository wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm rpm -Uvh ...
0
votes
0answers
16 views

how to find where buffers/cache are and how to clean them up? [duplicate]

I want to create 20gb ram disk for ANSYS to work in yet on free -g I see: And personally I have not created any ram drives yet. So I wonder how to maximize avaliable ram: how to locate what is using ...