CentOS is a free (as in beer and speech) GNU/Linux distribution that is community driven and based on source code released from RedHat.

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5 views

sniproxy not installing centos

Good day guys I'm having a few issues. I even formatted my whole machine with the hopes that it would work - but still failing. I'm trying to install Sniproxy on my linux machine, running the latest ...
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1answer
21 views

why does 'rsync --delete-before' delete files from target that still exist at the source?

I have a centOS 7.1 linux box with rsync 3.1.1. There are files there that I want to transfer to a FreeNAS 9.10 machine. For this I've set up an rsync daemon on freeNAS and transferring files works ...
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1answer
8 views

Failed to start nagios.service: Unit nagios.service failed to load: No such file or directory

I have been following this tutorial: $ sudo systemctl start nagios Failed to start nagios.service: Unit nagios.service failed to load: No such file or directory. What is the cause of problem? I ...
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8 views

CentOS 6 Apache 2.2 SELinux uploaded files 403 forbidden [duplicate]

We are running Magento 1.8.1.0 and for one of the upload folders in *document root*/media, namely the folder wysiwyg SELinux applies rights that makes uploaded content unreachable (403 Forbidden). We ...
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18 views

prlimit not found centos6.3

After finding out that ulimit -m no longer does anything on linux... I am now investigating the use of prlimit. I have found that this is supposed to exists as part of util-linux / util-linux-ng, I ...
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22 views

Relative symbolic links started not to work

There is a Centos 6.6 server which started to behave very strangely, it seems all relative symbolic links does not work. For example: # ls -al /etc/httpd/ total 16 drwxr-xr-x. 4 root root 4096 ...
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1answer
44 views

If a server is headless (CentOS 7) is there a way to make the GPU used as an extra CPU core?

I've got a server with centOS that has no graphical interface. I only connect to it via ssh. As a result, the GPU is probably not used for much. I'd like to make the server use it as an extra CPU ...
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1answer
15 views

RabbitMQ hanged up

I have single RabbitMQ 3.6.1-1 installed on CentOS 7.2.1511, with Erlang R16B-03.16.el7. Today I cleaned it up: rabbitmqctl stop_app rabbitmqctl force_reset rabbitmqctl start_app It worked for some ...
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0answers
29 views

CentOS: unable to verify backported fixes

Generally one uses rpm to verify backported fixes to a package like: rpm -q --changelog httpd But on my CentOS server, it's giving me: package httpd is not installed Or: package php ...
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8 views

Servers experience intermittent CPU “sensitivity”

We have a strange intermittent issue with a few servers where their CPU's become more "sensitive" to load. By this I mean that processes that generally run without issue, suddenly take up ...
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1answer
24 views

Yum cannot install php addons

I had an issue with phpmyadmin so i uninstalled php and all it's addons and reinstalled it, but yum complains it can't install php-common: Loaded plugins: fastestmirror Loading mirror speeds from ...
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22 views

User Unable to Change Group Owner of File on NFS

I've created a user, say testuser, with a home directory located in /home-nas/t/testuser/. I've added testuser and testuser1 to a group called testgroup and asked each user to log out and log back in. ...
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1answer
38 views

Getting output: sysctl: cannot stat /proc/sys/net/ipv4/conf/all/hidden: No such file or directory [on hold]

I am trying to use my linux server as a layer 4 load balancer following this tutorial: http://www.ultramonkey.org/papers/lvs_tutorial/html/ under "LVS Direct Routing" and under "Real Servers" it ...
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2answers
22 views

Granting FTP users access to multiple folders on CentOS

I'm have a web server running CentOS Linux 7.2.1511. I do most of the mundane management tasks through Plesk 12.5.30 Update #29 but I also SSH in and get dirty with the command line when I need to. ...
-2
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1answer
62 views

SSD DD write speed lower than HDD [on hold]

I've come across a strange phenomena with a new dedicated server that's been provisioned. The server has 2x1TB HDDs in software RAID 1 and a separate 120GB SSD that is intended to be used as a ...
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3answers
32 views

AH00027: No authentication done error after upgrading from Apache 2.2 to 2.4

I recently updated Apache on Cent OS 7 from 2.2 to 2.4 and after the update I am not able to access the root folder, I get the following error: [Fri Apr 29 16:30:19.977037 2016] [core:error] [pid ...
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0answers
19 views

Centos Cluster Two Nodes only [on hold]

I am trying to create a two node cluster with Centos for the purpose of availability and redundancy. Currently I have two servers with ricci, lucy, conga and kvm installed. I am reading as many ...
2
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0answers
9 views

error in installation of ejabberd

i am trying to install ejabberd in centos . ejabberd is running but when iam try to register it showing error like this. /opt/ejabberd-14.12/bin/ejabberdctl register root ...
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2answers
31 views

EPEL Repo GPG Key Working?

I followed the below steps to grab the EPEL GPG key and I'm trying to verify if it's working. This is on a freshly installed RHEL7 system. Repo: https://dl.fedoraproject.org/pub/epel/7/x86_64/ # cd ...
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0answers
24 views

Cpanel/WHM not working [on hold]

Everything work fine, suddenly today afternoon Both cpanel and WHM stop working. But still the website and SSH work fine, But i am unable to open cpanel or whm, when i opening using IP ...
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3answers
24 views

Creating swap file on CentOs uses all disk space

i Use this command in CentOS to create a 4Gb swap file but is uses all disk space!! dd if=/dev/zero of=/swapfile bs=1024 count=4G Filesystem 1K-blocks Used Available Use% Mounted on ...
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0answers
16 views

Could not find platform independent libraries <prefix> after recompiled mod_wsgi

I am on centos 6, while I need python 2.7 for some reason. And I recompiled mod_wsgi for python2.7, then add python2.7 shared library path to /etc/ld.conf, then ldd, it works fine and the log shows me ...
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0answers
41 views

How to bring website up in virtual private server [closed]

I recently bought a VPS that has only OS i.e. CentOS release 6.7 (Final) What software I have to install on this server to bring up my all websites and their domains? I configured 2-3 servers by ...
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1answer
38 views

Add space from one File System to Another [on hold]

I am getting space issues in Centos system. So I need to add space to my home file system /dev/sda1. /dev/sda1 having 99% usage whereas /dev/sdb1 having only 4% usage. How to add space into /dev/sda1 ...
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0answers
14 views

Amazon EC2: How to convert an existing PV AMI to HVM - CentOS - Wont boot

I've now tried every guide I've found on Google, some are posts on this forum. The instances always end up not booting with every guide/method I've tried. Probably spent about 4 days trying out ...
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2answers
42 views

ssh enter passphrase one line

I want to execute a command via ssh but my server is using passphrase, I want to make one-line only without asking passphrase. ~# ssh -t root@dev5 'echo "tes" ; bash' Enter passphrase for key ...
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0answers
25 views

TLSv1.2 enabled RDP client for Redhat/CentOS?

We have just hardened our windows servers to use TLSv1.2 for RDP. I was using freerdp and rdesktop from linux as RDP clients but both seem to not work with TLSv1.2. Any ideas regarding what Linux ...
0
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1answer
20 views

Setting default gateway on CentOS 7 and showing it using route and netstat -r

I am following a tutorial found here on how to setup a gateway for each adapter and also a default gateway: http://linux-training.be/sysadmin/ch22.html But when I run the commands $ route and $ ...
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0answers
35 views

Installing PERC driver during CentOS install

I'm trying to install CentOS on a PowerEdge R720, and I'm running into some issues with installing drivers during setup. I've created a virtual disk consisting of a single SSD, but during install ...
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2answers
27 views

Script to delete older files and copy what is left

We have a server that runs an application that is used internally. The application has a utility that creates its own backups every 24 hours. Backups are stored in: ...
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1answer
31 views

How to switch user in Linux with password

I have client with LDAP authenticatation, when user1 login to client, and switch to user2 (sudo su - user2), he just login without password. I want to make switching user in client with authentication ...
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0answers
28 views

trouble in install php-devel in centos 6

i am trying to install php-devel on centos but i got an error like below Error: Package: 1:php56w-pear-1.10.1-1.w6.noarch (@webtatic) Requires: php56w-ftp Removing: ...
1
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1answer
50 views

How do I increase the open file limit on Linux?

I am using CentOS 7. I found out that the current value can be seen using $ ulimit -a (look for open files). Or just $ ulimit -n Then I try to edit these limits by editing the file at $ vim ...
1
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1answer
23 views

Ansible cannot check service status and restart it

I am new in ansible. Now I try to restart my Tomcat service. It looks like ansible cannot detect service status (started/stopped) and cannot (re)start it. Please tell how to do diagnostic? See here ...
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0answers
13 views

cannot get vmware server/client communication through yp on centos6

I'm trying to setup yp on centos6 for a server machine and client machine Here's all the relevant info I can think of for the server: [c@localhost Desktop]$ cat /etc/sysconfig/network NETWORKING=yes ...
2
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2answers
30 views

centos 7, sudoers rights limits

i have a task to separate duties of users on a group of servers, the system is centos 7 there is a user that i want to give every right on the server except for the right to change root and other ...
1
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3answers
83 views

To SSL or to not SSL

Currently I have a website that serves a lot of mixed content I have the whole website under ssl. example.com All static content such as css js and a small amount of my own images such as logos ect ...
-2
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1answer
36 views

SAVE IP ROUTE RULES AFTER REBOOT

I have two internet connections from two different ISPs and I need to balance & failover the traffic originating to and from my network between the two ISPs. My settings: FIRST ISP (eth0): ...
2
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1answer
162 views

Using Lets Encrypt SSL for multiple Apache servers with distributed traffic

I'm having some issues setting up Let's Encrypt for a couple websites that are setup on two different servers, and have the traffic distributed to them via HAProxy. The servers have a number ...
2
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1answer
62 views

Apache spawning enormous number of httpd processes

I am running a CentOS 6.7 machine (16 GB vRAM, 8 vCPUs) with a simple web server setup (Apache/2.2.15, PHP/5.3.3, MySQL/5.1.66), hosting an online shop with a moderate number of page impressions ...
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0answers
21 views

ifconfig output different for non-root user

we use a montoring system to capture network traffic. the output as root user is fine: eth0 Link encap:Ethernet HWaddr 00:1E:67:E6:D6:FE inet addr:149.56.19.13 Bcast:149.56.19.255 ...
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0answers
15 views

pptp vpn client close all inside connections

I setup PPTP-VPN-client on my Centos VPS (guide: http://websistent.com/how-to-configure-a-linux-pptp-vpn-client/ ) when i connect to pptp server from my centos vps all connections(ex ping, ...
2
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2answers
59 views

Is order of network routes important in Linux?

On one of my web server the loopback route is in 2nd position and usually it is in 3rd position on other server when displaying the routes: >ip route show Results on what is displayed on one ...
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0answers
10 views

Install php-ZendFramework and php-ZendFramework2 in parallel on a machine

is it possible to install php-ZendFramework and php-ZendFramework2 on one host? I need v2 for bareos-webui and v1 for icingaweb2. I've only found some info here ...
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1answer
28 views

ldapsearch not working

My goal is to test LDAP authentication from command line. I tried using ldapsearch for this. I'm using Centos 6.7 Even though I'm using the correct credentials, the following command fails ...
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0answers
18 views

Problems installing pdftk on CentOS7 - libgcj issues

I'm trying to install a command line pdf manipulation program called "pdftk" on CentOS 7. I've tried several ways to get it installed and running into issues. If I try to install the rpm I get this ...
0
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1answer
22 views

Forward service records from main DNS to IPA server

I have a production DNS server (dns1.local) in Data Center environment, I build recently IPA server (ipa.example.com) that runs DNS as well in the same environment and it forwards requests to ...
1
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1answer
28 views

Accesing Samba share from Windows

I have a CentOS machine with samba installed and configured like so: [global] security = user workgroup = mycompany and one share [myshare] path = /srv/mysrvapp writable = yes valid user = ...
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0answers
19 views

Ran out of inodes because of something happening in the meteor packages folder

I'm running meteor in a centos server (not production) where I've installed meteor, this meteor app rebuilds everytime I pull the code from git. The server ran out of inodes and I've realised the ...
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23 views

Webserver always too slow in AWS EC2 instance

I started a simple python server on port 4444 in one of my ec2 instance.and tried to access it by curl. It takes more than 5 seconds for server to respond. Below is the tcpdump output on port 4444 ...