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

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Unable to upgrade PHP 5.3.3 to 5.6 on centOS 6.3

I got a problem with upgrading PHP 5.3.3 to 5.6 on linux centOS 6.3. I've already search it on the net and got answers including here (Since it's a classic problem), but still not able to solve it. I ...
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1answer
25 views

Errno 5 Input/output error when running yum check-update

I tried to update a server over SSH, but when I ran yum check-update I got an error: [error 5] Input/output error I think this means the RPM libraries may be damaged or corrupt, but I'm not sure ...
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21 views

Lots of strange disappearing connections to my Centos7 host

I run my website on a Centos7 cloud instance. I log in via ssh, and to view connections I use 'ss -tap' Whenever I first do this I see approximately two dozen unique ip addresses for 'users: httpd', ...
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22 views

Installing Xfce4.12 on CentOS

My lab computer has been upgraded to a fresh install of CentOS7 during the weekend. So far so good. I would like to use Xfce over the default Gnome shell. I have super user access on the machine but I ...
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2answers
5k views

Installing python modules for python2.6

On my CentOS 5.8 system (el5 , 64bit), I had python2.4 after OS install and I installed python2.6 now. Now I want to install python modules using yum. But whenever I install a new python module it ...
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5answers
18k 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 ...
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1answer
15 views

Add shared module to apache CentOS7

I have practiced with my apache 2.4.6 on CentOS7 and I have tried to add shared module. I can list my compiled modules using this command httpd -l. All shared modules is located in /etc/httpd/modules. ...
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1answer
30 views

Updating extensions after PHP upgrade on CentOS 5.6

I'm completely new to pecl, yum, rpm, packages and all the stuff required to get this done, so I'm hoping some of you smarter more experienced people can help me out. I only have a vague notion of ...
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1answer
13 views

Does CentOS 6 have a kernel-module-extra equivalent?

I am attempting to activate and use my TPM module, but all online instructions suggest I install kernel-modules-extras package. The problem is, I cannot find this package type for CentOS 6. Is this ...
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1answer
891 views

Install nginx 1.8 on Centos 7

I'm trying to install nginx 1.8 on Centos 7. I tried the following steps: Install nginx repo from http://nginx.org/en/linux_packages.html wget ...
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1answer
10 views

agetty dumb terminal option

I'm trying to set up a CentOS distro to output on a serial console. I went through all the steps described on this page . My question concerns the agetty command: exec /sbin/agetty ttyS1 19200 ...
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1answer
99 views

Linux not using all memory

I have a PC with Fedora 23 OS with 4 GB RAM, but usable memory is 2 GB. When I tried to check memory: # dmesg | grep Memory [ 0.000000] Memory: 1753008K/1816676K available (7670K kernel code, ...
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19 views

I cant find preference in centos 7

I just installed centos 7 and the desktop is missing the preferences section how can i add preferences to my desktop?
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0answers
32 views

Different ways to use my cloud virtual machine lead to different interface languages

I use qcloud(a cloud service in China) to run a CentOS 7. In the qlcoud webpage panel, I can use the vnc way to check out my machine. In my own Mac, I can use the ssh to log into my machine. ...
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1answer
666 views

Emails not sending to one specific domain

We have a AWS server where emails are delivered to domains other than our own domain. I have confirm that I can send an email to my gmail account but I can't send to my hosted gmail account. So for ...
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2answers
33 views

Disable and Enable modules in apache CentOS7

My goal is to optimize my apache server. At first I want to disable some modules on it. I was surfing over the Internet and didn't find anything dedicated to apache which is installed on CentOS7. Here ...
2
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1answer
2k views

Windows 7 boot option missing after installing CentOS 7, how can I get it back?

After installing Centos7, windows 7 is not showing at the boot time. Centos 7 is accessible. My boot folder entries: [root@localhost boot]# ls -ltr total 89176 -rw-------. 1 root root 2840084 Jun ...
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1answer
734 views

Cannot ssh into a fresh install of CentOS minimal on lan

I've downloaded CentOS 7 Minimal and installed on an old laptop. I want to be able to ssh to the machine from other machines on the same lan. But I keep getting this error .. ssh: connect to host ...
2
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0answers
32 views

How does Grub Stage1, exactly, access/load stage 2? [duplicate]

This is my first ever question, I have put this question in front of Red Hat Instructors but didn't find any satisfying answers. I'm using RHEL/CENTOS6, GRUB Legacy 0.97, and have consulted heaps of ...
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1answer
12 views

linefeed in bash script - to email

I am doing printf to a logfile and having that logfile send through mailx, however, it seems that the linefeed "\n" are not recognised or captured in the mail. Snippet of script as below (notice the ...
1
vote
1answer
673 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 ...
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2answers
1k views

gcc installation on CentOS 6.6: configure issue

I'm trying to build/install gcc on CentOS6.6, following this instructions: http://qt-project.org/wiki/How-to-Install-Qt-5-and-Qwt-on-CentOS-6 After the auto-config err'ed out: [felix@localhost ...
0
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1answer
35 views

How do I set up passwordless authentication with non-root users?

Using two CentOS 7 servers, I set up passwordless authentication with root users. It works fine. I tried to use the same method (with .pub and authorized_key files) with other local users. But these ...
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1answer
22 views

apache Virtual Host Configuration CentOS7

My host machine is Windows 7 and guest machine is CentOS 7. I am a new to Apache and I am trying to create VirtualHost on CentOS7. I have read a lot of documentation and a lot of answers over ...
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1answer
17 views

SELinux is not logging anywhere

I have SELinux in permissive mode enabled on CentOS7 system. But it doesn't seem to produce any logs. No new files in /var/log/audit, grep -i selinux /var/log/messages* finds nothing. sestatus ...
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4answers
161 views

The server is not accessible only from my IP?

I am Using a CentOS 7 and Apache 2.4 as my website host. I tried a number of other machine and some can reach the server and some cannot including my PC. I have disabled stopped firewall (systemctl ...
3
votes
1answer
6k 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. ...
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0answers
19 views

Will exiting SSH session cancel CP? [duplicate]

I have SSHed onto a CentOS server and initiated a CP from one directory on the server, to another directory on the server. If I exit my session, will the CP cancel? If so, is there a way to exit the ...
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1answer
40 views

My “yum update” is not working

I am having problem with "yum update" This is the output: [root@localhost yum.repos.d]# yum update Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Update Process Loading mirror ...
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0answers
28 views

Cannot connect to any host (including localhost) using PAC Manager on CentOS 7

I'm using following system: [alexus@wcmisdlin02 Desktop]$ cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [alexus@wcmisdlin02 Desktop]$ uname -a Linux wcmisdlin02.uftmasterad.org ...
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2answers
87 views

net.ipv4.ip_forward reverting to 0 even though set in /etc/sysctl.conf

I set net.ipv4.ip_forward = 1 in /etc/sysctl.conf and ran sysctl -p which caused it to set to 1 as expected in the output of sysctl -a, but sometime between last night and now something set it back to ...
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2answers
61 views

“URL not found” on “yum update”

I am working on CentOS 6.7. When I install the command "yum update all", I get the following error. ...
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2answers
2k views

vgdisplay shows 0 free PE/size

I'm trying to configure a CentOS HA system with 2 nodes, with DRBD for replicated storage. I'm following the "Clusters from Scratch" guide, and at the DRBD portion, I need to create a partition for ...
3
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5answers
83 views

Mass IP Blocking

I have a game server and someone is spamming it with bots. The SpamBot client makes the handshake with my server using UDP connections. It does this through a list o proxies. Basically, the Spambot ...
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1answer
41 views

how can I build Radeon proprietary drivers for CentOS 7?

So, I am running CentOS 7 on my laptop and all seems almost OK. Now I'm trying to install the video card driver. # lspci -nn ... 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. ...
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26 views

How do I install and configure NTP on CentOS 7 from source? (include/ntp_crypt.h errors)

I unpacked the .tar.gz file for the newest NTP. I installed the gcc compiler and libcap devel. I ran the ./configure command with various flags and options. I ran make check and found an error. The ...
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1answer
29 views

How do I install NTP from source on CentOS v7? (/bin/ld: cannot find -lcap)

I unpacked the .tar.gz file. I installed the gcc compiler. I ran the ./configure command with various flags and options. I ran make check and found an error. The exit status is 2. Only 0 is ...
3
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1answer
37 views

Why can't my servers talk to each other over direct ethernet connection?

I have two servers running RHEL 7.2. Each have 2 NICs. One NIC talks to a switch, and other is a direct connection between the two servers. One of the servers will be an NFS server, and the second ...
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1answer
48 views

How can I create an LVM volume group spanning 2 hard drives? [closed]

I have rented a dedicated server with two 500gb hardisks running Centos 6. On this server there are 4 partitions: 1.boot 2.root 50gb 3.swap 50gb4. 4.empty 400gb Now I want to create a logical ...
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2answers
46 views

No space on the boot disk to update kernel

I have installed centos 7 on vmware and seem to have ran out of space on the boot drive. Is there a way to add more space without formatting the disk? [root@centos7 /]# df -h /dev/sda1 Filesystem ...
3
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0answers
38 views

Can using chcon to essentially bypass selinux be less secure than setting selinux to permissive?

I was wondering if it is possible to make a CentOS 7 server less secure by using chcon than it would be if SELinux were in Permissive mode. I am essentially trying to set up Phusion Passenger with ...
0
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1answer
68 views

centos 7 font problem unable to read words

hello friends after last update (centos 7 3.10.0-327.4.4.el7.x86_64) i am unable to read text in terminal and also right click menu looks like below screenshot why is this . How to fix this ?
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2answers
27 views

$USER environment variable not changed to root

The USER env variable is unchanged after gaining root access. [user1@comp]$ echo $USER user1 Logged in the system as 'user1'. Now check the output after gaining root access. [user1@comp]$ su ...
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1answer
1k views

Upgrade OpenGL from 1.2 to 2 for Nvidia GT218 [GeForce 310]

To run my application OpenGL version 2.0 or higher is required. glxinfo | grep OpenGL yields: Xlib: extension "NV-GLX" missing on display ":1007.0". OpenGL vendor string: Mesa project: ...
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1answer
26 views

What is the different between qcow2 format vs img format?

I want to back up a virtual machine image when I went to the directory where the images are stored /var/lib/libvirt/images/ I found one .img file, the rest were .qcow2, unlucky the virtual machine I ...
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23 views

What is the equivalent to this apt-get when installing PostgreSQL extension for acoustid?

On bitbucket, it says to install the extension using sudo apt-get install postgresql-9.X-acoustid. but I'm running on CentOS... when I replace apt-get with yum: $ sudo apt-get install ...
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1answer
1k views

Install Apache https 2.2 under Centos 7

I would like to install Apache httpd 2.2 (httpd-2.2.15-39.el6.x86_64) under CentOS 7. The default repositories only have Apache httpd 2.4 available. Does anyone know where there is a CentOS 7 ...
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0answers
13 views

How to disabled login for domain user in CentOS 6

I have all my CentOS 6 machines joined with samba and winbind to a windows domain (2008) and all users that I need to access those machines are in a certain AD group called "engineering". I also have ...
0
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1answer
26 views

Add AD users to sudo group not working | CentOS 6.7

Just as the title states I am on CentOS 6.7 and want to add two domain admins to the sudo group. I have tried adding both users individully and both together see below: someuser ALL=(ALL) ALL ...
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1answer
26 views

source RPM doesn't seem to install on CentOS with no errors

My experience with CentOS and RPM's is limited so I might be missing something obvious, but I can't seem to figure this out... I'm trying to install Sphinx into CentOS 6 in a Docker image using the ...