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

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CentOS Strange Adobe Flash Problem

I have a CentOS release 6.5 (Final) Kernel 3.10.40-1.el6.elrepo.x86_64 with Adobe Flash problem. "Firefox ESR 24.6.0 "and "Chromium 31.0.1650.63 Built from source is CentOS release 6.5 (Final)" ...
6
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1answer
4k views

Configuring OpenVPN to use Firewalld instead of iptables on Centos 7

I need some help configuring OpenVPN on Centos 7 using firewalld. I used iptables on Centos 6.5 and only had to add the following lines to /etc/sysconfig/iptables: -A POSTROUTING -s "10.0.0.0/24" ...
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1answer
75 views

Common subroutines in RPM

I have some common code that I would like to execute in the %pre and %post section of my rpm spec file. When I place a subroutine in the %pre section, I need to add the same subroutine to the %post ...
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256 views

sudo service errors out with JAVA_HOME not found

I've used visudoer to set the keep_env for JAVA_HOME: $ sudo printenv | grep -i JAVA_HOME JAVA_HOME=/opt/java $ ls $JAVA_HOME bin db jre LICENSE README.html src.zip ...
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2answers
432 views

update ss utility on centos

My centos version is: 2.6.32-131.17.1.el6.x86_64 #1 SMP Thu Oct 6 19:24:09 BST 2011 x86_64 x86_64 x86_64 GNU/Linux And my ss version: ss --version ss utility, iproute2-ss091226 I need to ...
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1answer
566 views

building pidgin-otr-4.0.0 on CentOS 7: can't find pidgin and purple

I have built pidgin from source on CentOS 7. This is because there is no package available yet. This went well, however, pidgin-otr-4.0.0 cannot find the headers for pidgin and purple. They reside in ...
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1answer
523 views

How to start GUI application with upstart?

I have struggled with this problem for three days and I have tried many ways to solve it but not successful yet. I hope you guys can help me... I have an GUI application. I want to start this ...
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1answer
78 views

Other Programs Cannot Connect To MySQL

So just recently when installing php-fpm, I had installed a few MySQL packages with it (I believe). I already had mysql installed. However now when any of my programs attempt to access the database, ...
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1answer
1k views

How to start application after login on CentOS?

I am trying to start GUI application with upstart script on CentOS. I have test script located /etc/init/ folder. start on desktop-session-start stop on desktop-shutdown respawn script export ...
2
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1answer
71 views

Can't acces DNS

I'm running CentOS as a Virtual Machine. I can access the VM's server (IP = 192.168.0.107, which displays a phpinfo() page as it should), but now I would like to acces a custom domain name: "imd.be" ...
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43 views

Passing Environment Variable to NetworManager GUI

My VPN stoped working when I switched to Centos 7. I narrowed the problem to the lack of MD5 support (not strong enough). I followed this thread, and now I can use open-vpn on the command-line to ...
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2answers
31k views

Unable to get Gnome desktop after installing from CentOS 6.5 minimal

I have just installed CentOS 6.5 minimal. The reason I installed the minimal version is that the full version had ISOs of over 3GB each and my CD-RWs can only told about 750 MB. I would like a ...
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1answer
775 views

CentOS vs RedHat on hp DL 380 G5

hp lists downloads for: » Red Hat Enterprise Linux 5 Server (x86) » Red Hat Enterprise Linux 5 Server (x86-64) » Red Hat Enterprise Linux 6 Server (x86) » Red Hat Enterprise Linux 6 Server ...
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1answer
969 views

httpd-devel requires outdated version of glibc-common on CentOS 6.3

httpd-devel requires an outdated version of glibc-common on CentOS 6.3 x86_64 and Apache/2.2.15. It wants 2.12-1.80.el6 and I have 2.12-1.80.el6_3.3.x86_64 installed (via CentOS @update repo) Here is ...
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0answers
22 views

Why Would Spacing Matter in grub.conf?

See my earlier question. GRUB wouldn't recognize the XEN kernel until extra blank lines were added and the title of the GRUB entry matched the version of XEN installed on the server. I've always ...
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1answer
390 views

Grub not Recognizing XEN Kernel on Boot

We are able to successfully install and boot to a XEN kernel on 5 of our 7 eucalyptus node controllers. The last two are having the same problems despite running an identical installation process. ...
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1answer
297 views

Unable to start Virtual Box in Cent OS

[root@localhost sysadmin]# /etc/init.d/vboxdrv setup Stopping VirtualBox kernel modules [ OK ] Uninstalling old VirtualBox DKMS kernel modules [ OK ] Trying to ...
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1answer
82 views

Get X to ignore specific mouse?

I have a program which needs control of a mouse. I have a specific mouse attached for this, and I would like X to leave it alone. Unfortunately whatever mechanism in X autodetects and configures input ...
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1answer
308 views

is “ServerAdmin email@domain.tld” required in the VirtualHost in Apache?

I rather not have ServerAdmin in my VirtualHost because all it does is attract spam. has no use what so ever. can it be ignored ?
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1answer
3k 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 ...
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297 views

CentOS 7.0 live USB cannot be recognised

Wish to dual boot Ubuntu 14.04 LTS and CentOS 7.0, I have planned to first install Ubuntu 14.04 LTS by live USB into a laptop computer (boot both UEFI and legacy with UEFI first), followed by CentOS ...
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1answer
1k views

autorun a linux program on startup from a non-root user in centOS 6 64bit

I have a software that needs to be run via specific user "non-root" hence its home directory is /home/non-root/, I have to emphasize that the program must not be run via root and must only run after ...
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1answer
1k views

PC Boots to grub> prompt after putting partition table entries in disk order

I am using Centos 6.5. I tried to get the disk space using fdisk -l | grep Disk What I got was Partition table entries are not in disk order I tried to fix the problem with the method outlined ...
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1answer
182 views

Unable to see eth0 after ifconfig

Yesterday, I have done some changes in /etc/sysconfig/network-scripts/ifcfg-eht0 in centos 6. I have edited the value of nm_controlled= "no" after "Yes". Now, I am unable to see the "eth0" after doing ...
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2answers
2k views

Replacing libpng-devel (1.5.3) with libpng12-devel RPMs on CentOS

I have a CentOS 6.4 box with a lot of other RPMs. I want to replace libpng-devel with libpng12.devel. If I do an rpm -e libpng-devel I get the following: error: Failed dependencies: ...
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1answer
115 views

Installing CentOS to a flashdrive trouble

I have been using GParted and UNetBootin to install CentOS-6.5-x86_64-minimal.iso onto a flashdrive. I have partitioned the flashdrive as I have a seperate ISO installed on there. The other partition ...
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2answers
775 views

Error Installinig Kernel on Centos (from Source)

I am running GNU/Linux (Centos 6) on kernel 2.6.32-431.17.1.el6.x86_64. I am trying to update the kernel to 3.2.61. I performed the following steps inside the 3.2.61 folder structure: make ...
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1answer
79 views

Not able to SSH into VM

I want to SSH from my host into my guest VM (CentOS). I can Ping. SSH is running. Port 22 is open. Looks like firewall is off / IPtables are all open. (this is not normal?) When I SSH into my ...
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3answers
8k views

eth0: ERROR while getting interface flags: No such device [duplicate]

I set up CentOS yet. it's no network connection. eth0 is not device list. I take a message network is unreachable while ping 192.168.0.1 the screen shot of device list How can I do reachable ...
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2answers
110 views

change boot order

I have 2 partitions sda1 XP and sda2 CENTOS. I have reinstalled grub on /dev/sda but on rebooting, I experienced: error : 22 no such parition for Centos; while Windows boots charmingly on the other. ...
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314 views

DNS works half of the time in Oracle VirtualBox and I can't even maintain /etc/hosts file

I have installed three Linuxes on same laptop and same VirtualBox and this is my success ratio with DNS: HortonWorks & CentOS. Worked for 5 minutes and never after that again. VM image ...
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1answer
122 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 ...
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41 views

PlayOnLinux(POL) Excel 2007 can not open more than one spreadsheet

I have Installed CentOS 6.5 - i386 and PlayOnLinux 4.1. On that MS Office 2007 is installed. Word 2007 is able to open more than one document simultaneously and also possible to perform Cut, Copy and ...
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114 views

Why does “Connection Failed: 2002” display randomly on my PHP/MySQL website?

I'm running CentOS 6 with Apache/PHP/MySQL. PS. I'm sort of a novice at Linux, but I did my best to gather info before coming here. I'm now a bit stuck. I recently upgraded PHP to version 5.5.12. I ...
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1answer
15k views

How to auto generate resolv.conf on Centos 6.5

I just installed CentOS 6.5 and configured the following files: /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 HWADDR=aa:bb:dd:dd:ee:ff TYPE=Ethernet UUID=adfddfaf-9sda-adse-dfs4-asdfsdfdfg97 ...
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973 views

How to fix “cannot retrieve repository metadata” when installing CentOS 6.5 from Kickstart over FTP?

I am pulling my hair out trying to fix this. I am attempting to install CentOS 6.5 over an FTP server on KVM from the physical host. I have vsftpd installed, selinux set to permissive, and iptables ...
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2answers
2k 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 ...
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2answers
6k views

Copy over existing files without confirmation?

I need to copy and over-write a large amount of files, I've used the following command: # cp -Rf * ../ But then whenever a file with the same name exists on the destination folder I get this ...
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3answers
2k views

Centos rpm -qa vs yum list installed

I want to have server b to have exactly the same setup as server a. My plan is to have a list of all installed things on server a and install it by using the list on server b something like : yum ...
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2answers
171 views

Unable to get rid of root user and privileges

I am told that the most basic security to set up in Linux is to change the superuser name from root to something obscure so I run these steps to add new user $ /usr/sbin/adduser new_username $ ...
3
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2answers
7k views

How can I install VLC 1.1.10 or 1.1.9 in CentOS 5.6 or CentOS 6.0?

On the VLC download site there is no CentOS 5.6 or 6.0 downloads rpm's. Which RPM can I use to have VLC 1.1.10? In case it's not available, can I simply use the same Fedora downloads? [root@www ~]# ...
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1answer
1k views

how to install VMware vSphere Client on centos 6.5

How can I install "VMware vSphere Client" on CentOS 6.5?
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3answers
509 views

Possible corrupt passwd file

I did a recovery of the server and reset the root password to a new one because for some reason, the original was not being recognised. It still is refusing to accept the password in ssh for root. ...
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126 views

TPM passwordless boot

I'm trying to create device with CentOS6, encrypted disk (with LUKS), TPM module and TrustedGRUB to boot securely and without interaction. I'm following instructions from ...
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1k views

Avahi daemon can't launch due to dbus-daemon problems

I'm trying to run avahi-daemon on CentOS 6.5, but when I run it I get this error: bash-4.1# avahi-daemon Found user 'avahi' (UID 70) and group 'avahi' (GID 70). Successfully dropped root privileges. ...
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1answer
709 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 ...
6
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1answer
891 views

forward outgoing traffic port using iptables

I am trying to forward all outgoing traffic from port 80 to port 8080 using iptables and I tried the following rule, though it did not work: iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT ...
2
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1answer
307 views

How can I list all the dependencies necessary to install PHP-Soap?

I have a server running Centos 5.10 with no internet access that I control remotely on which I'd like to install PHP-Soap. I also have an identical box in the office which is a clone of the remote ...
2
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1answer
465 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 ...
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1answer
716 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 ...