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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4 views

Handling emails in a separet email servers

This is a problem about maintaining an all-email VPS server. First, I have two VPS hosts right now, both running CentOS 6.5, 32bit system. one for web hosting and other for email only. The reason ...
-1
votes
1answer
31 views

Two NIC (eth0,eth1), two global IP on same subnet. Became unreachable to IP on eth1 after reboot

I configured a CentOS 6.5 virtual server and deployed it to a remote VMware vSphere environment. We needed two IP address, so I added a virtual NIC and assigned a second IP on eth1. I didn't ...
4
votes
1answer
916 views

How to use more than 3 virtual disks in Linux using CentOS and XenServer

I've attached 5 virtual disks to a Virtual Machine in Citrix XenServer. The VM has the xs-tools installed. Initially it said that it couldn't add so many disks. After I installed the xs-tools, it ...
1
vote
1answer
52 views

5-7 second latency between Apache server and MySQL server when website calls on database server

I am currently running a virtualized environment for my web and db server. When I access the web server or the MySQL server individually, they are both fast. I also have websites running on the web ...
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0answers
11 views

Installed RBLDNSD for making a custom RBL but something is missing, could you help us?

We have successfully installed RBLDNSD with the idea of having a custom RBL server. Now we have started to make some testing adding some IPs to the our blacklist, and also have configured Exim (Cpanel ...
0
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1answer
36 views

httpd service will not start on boot under CentOS 6

I am having trouble configuring a CentOS 6 Vagrant setup to start the Apache service on boot. I have tried using chkconfig and the OS seems to just ignore it. When I run sudo chkconfig --list httpd, ...
0
votes
1answer
16 views

Where is the icons folder on CentOS 5.10, and how do I disable it? [on hold]

I'm running into a PCI compliance issue (repeatedly) where the Parallels panel allows the icons/ folder and the icons/small folders to be browsed via the Parallels panel port (e.g. https:// ...
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0answers
25 views
+50

Enable Jailshell Access from Command Line

There is an option in whm/cpanel to enable jailshell access for any hosting account. I want to know if it is possible to enable that option for any or all cpanel hosting accounts through command ...
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0answers
11 views

How to minimize UDP packet loss over multicast

Observing broadcast packet drops on RECOVERY SERVER . The packets are seen till the switch level. #netstat -su We have increasing these ring buffers to the maximum possible value. # ethtool -G ...
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3answers
1k views

Hostname Problem On WHM / cPanel Installation

My CentOS 5.6 server's hostname was "centos" . And then i change it to my domain : hostname domain.com And i started to installing WHM / cPanel as explained in here : ...
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votes
1answer
45 views

How to access device on switch from another computer? [on hold]

I have several computers all connected to the same switch. Some computers are running RHEL, one is running CentOS. The CentOS machine is connected with NIC 2 to switch 2, and NIC 1 to switch 1. The ...
1
vote
1answer
23 views

Virtual Host Web Files Not Being Served

I am attempting to serve web files via virtual host, but Apache keep blocking the directory's files. All that will show is the default Apache Welcome page. index.html gets a permissions error, and ...
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1answer
1k views

FreeNX 0.7.3 under CentOS 6.3 - Negotiating link parameters

since some days I try to get freenx (CentOS package 0.7.3) running under CentOS 6.3. It is like found on many websites: First login is successfull, after that all login attempts fail with the ...
0
votes
1answer
515 views

mCrypt extension needs to be loaded for OpenCart to work

I'm trying to setup my Opencart site, and I have the local site working on my Debian development machine, for production I have a Centos 5.4 VPS with apache and stuff. When I try to install OpenCart ...
0
votes
1answer
33 views

how to resolve yum replace php-common --replace-with=php55w-common error?

how to resolve yum replace php-common --replace-with=php55w-common error? on CentOS 6.5 root@server [~]# yum replace php-common --replace-with=php55w-common Loaded plugins: fastestmirror, replace, ...
3
votes
2answers
2k views

PyCURL couldn't resolve “cdrom:sr0” during CentOS 6.2 kickstart installation

I'm trying to install CentOS 6.2 by kickstart, and I'm using the stock minimal ISO and the auto-generated anaconda-ks.cfg. After the installation finished partition the hard drive, I get an error ...
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0answers
8 views

Pure Ftpd Upload To Top Directory

I created two users for ftp.Users: username:dev Directory:/home/site/dev When I logged in to ftp with this account,I can't upload any file to dev folder,but I can upload dev/images folder or etc. ...
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0answers
6 views

how to uninstall NeoRouter Free Server, at centos5 [on hold]

I was using NeoRouter Free Server for "Red Hat Enterprise Linux and CentOS x64", now i want to uninstall it (remove completely), i tried to uninstall it myself and i failed, please help
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1answer
37 views

glibc detected *** /usr/sbin/httpd: free(): invalid pointer

One of my websites gives a lot of internal server errors. When I restart httpd they are gone for a while. But after some time they come back. And once or twice they have frozen the whole server/VPS. ...
0
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0answers
8 views

how to resolve yum replace php-common --replace-with=php55w-common error? [duplicate]

how to resolve yum replace php-common --replace-with=php55w-common error? on CentOS 6.5 root@server [~]# yum replace php-common --replace-with=php55w-common Loaded plugins: fastestmirror, replace, ...
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2answers
108 views

centos 6.5 upgrade uname gives different output

I upgraded my CentOS machines from 6.4 to 6.5. My local machine, after the upgrade, gives this for uname -r 2.6.32-431.5.1.el6.x86_64 My Linode show this - uname -r 3.13.7-x86_64-linode38 The ...
0
votes
1answer
54 views

version 0.9.7a of openssl reports “certificate signature failed”, but version 0.9.8e is happy

I am trying to construct an openssl certificate chain that will work with a standard CentOS 4 install as client. (I know it's very old, but it's what our client is using so we need to support it). ...
3
votes
6answers
5k views

Find MAC addresses in /proc or somewhere despite bonding device?

Is there a way to get the original MAC addresses for eth0 and eth1? A large array of servers have bonding interfaces managing backup switch connections and one is misbehaving. With bond0 active both ...
1
vote
1answer
40 views

How to monitor the hard disk status behind Dell PERC H710 Raid Controller with CentOS 6?

I have a Dell server running CentOS 6 using PERC H710 Raid Controller card with Raid 5 setup and I want to monitor the hard disk failure/working status behind the Raid Controller. Then I should be ...
0
votes
1answer
771 views

Creating rescue / install USB flash disk for CentOS

For CentOS installation CDs, you can install OS, as well as booting into "rescue" mode so that you can do a chroot mount on the system partition for problem solving, even the system is installed in ...
1
vote
1answer
21 views

Removeing ulimit from boot / init

In CentOs as from version 6 there is a by default process limit 1024 for every user i.e /etc/security/limits.d/90-nproc.conf * soft nproc 1024 I have to execute a backend ...
-2
votes
1answer
21 views

Command-line access to javascript in CentOS? [on hold]

I'd like to get command-line access to a javascript runtime -- just something that I can type simple javascript statements at, and get results printed back at me. Something like php -a, or even a ...
0
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0answers
35 views

CentOS machine, not connecting to Internet only connecting to Intranet [on hold]

Recently i made some changes to my centos Machine so that now it is unable to connect Internet, but only connecting to my internel network. Here are my config files of my Centos machine ...
-4
votes
2answers
57 views

how can i access a directory from network in apache using httpd.conf [on hold]

I want apache to access a location which is in network that means instead of specifying a DocumentRoot from withing the server(mine is centos) i want the apache to access a directory which is on ...
0
votes
1answer
703 views

ZenOSS webinterface connecting problem

I'm having a problem with ZenOss. I installed the centos stack installer on Centos 5.5 x64. De installation succeeded and no errors where displayed. But when I tried to surft to the ip address it ...
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0answers
10 views

Transfer user data of a Tigase server

I'm trying to transfer a Tigase XMPP server from an Ubuntu VPS to a CentOS VPS. Unfortunately there isn't any official documentation available and I need to experiment in order to preserve all of the ...
2
votes
1answer
2k views

How to resolve yum errors during update - CentOS

I'm running CentOS 6.4 with Apache, and am having trouble running Easy Apache update through WHM. It fails with errors related to yum, so I decided to update yum manually. Here's the last view lines ...
0
votes
1answer
25 views

CentOS System Recovery : Overwritten RAID Superblock and porting to new hardware

I have a failed system running on CentOS 6 and would like to attempt recovery of system. One problem it has is the mdadm superblock appears to have some issues, it has all sorts of inconsistent ...
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0answers
27 views

Stuck at grub prompt after a default CentOS 6 installation

I am having a very strange problem installing CentOS 6 that I've never encountered before. I've followed these same steps thousands of times before, but within the past couple weeks I've had two ...
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0answers
14 views

Jenkins-1.5 on HTTPS/SSL instead of HTTP

I just "yum install jenkins" and ran to war file. Now the jenkins server is accessible via "x.x.x.x:8080"; How do I route all the traffic via SSL/TLS with self-generate certs? I've looked at ...
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0answers
9 views

How to verify dumpedfiles.sql is taken correctly with no errors

I had a problem before on one of my servers, Database backup was taken using: mysqldump --single-transaction and one day i needed to restore the daily backup and found the dumpedfile.sql is ...
0
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0answers
175 views

Why yum update PHP doesn't have required dependencies? CentOS 6 missing libcrypto and libssl [duplicate]

I own a CentOS 6 VPS on GoDaddy and I'm attempting to update PHP. GoDaddy told me to do the following: 1.Install epel and remi repositories: # wget ...
0
votes
1answer
247 views

Trying to install gd, getting conflict error

I am trying to install gd using sudo yum install php-gd but I get the error below. I know I have ran into this problem before but I can't seem to recall how I got around it. Am I in the wrong ...
2
votes
1answer
637 views

What is the correct way to install software RAID 1 in CentOS 6.4?

I'm going to install CentOS 6.4 on HP ProLiant ML310e Gen8 server. This server has fakeraid controller so i decided to use software raid. The problem is that i don't know how to correctly install GRUB ...
0
votes
1answer
18 views

Connection from Play Framework to Docker container

In an EC2 Amazon Linux instance(based on Centos) I am running RabbitMQ in a docker container and I have configured it to listen to 5672 and 15672 tcp ports on 0.0.0.0. This container process is ...
0
votes
1answer
24 views

Yum Hangs on “Setting up Update Process”

When running the following command, yum hangs on Setting up Update Process,and then server down and should to reboot from panel. centos 6.5 /etc/yum.conf [main] ...
0
votes
1answer
2k views

How to create a Centos Xen domU on Debian Squeeze using xen-create-image

I have a Xen host system based on Debian Squeeze, and installed xen-tools. I would like to setup a CentOS domU using xen-create-image. xen-tools already 'knows' of CentOS-5, but I cannot seem to get ...
0
votes
2answers
31 views

Google Compute Engine Cent OS change hostname

Title says it all really - I want to change the hostname of a Google Compute Engine Cent OS instance. I have tried the normal method... in /etc/sysconfig/network set HOSTNAME=my.new.hostname in ...
0
votes
1answer
20 views

postfix multiple recipients for the one address

I'm running postfix on centos and in my /etc/postfix/address I have email@domain.com username which works and now I want two people to be on that list now. I've tried email@domain.com username, ...
2
votes
3answers
977 views

EC2 EBS AMI Instance stopping/restarting doesn't start services

I've recently been moving our instances to EBS instances (CentOS) and still have a bit of confusion on what's happening when I "stop" and instance. I have some of my services with runlevels 345 on but ...
0
votes
1answer
77 views

Abnormal CPU usage during Disk Write Operations

I have a decent CentOS 6.5 dedicated host (CentOS 6.5/E3-1230 3.2Ghz Quad Core + HT/16GB/Software Raid 1 SATA II/WD2503ABYX/ext4) with the default CentOS kernel and "elevator=deadline" in grub. I/O ...
0
votes
3answers
768 views

OpenVPN client connects but can't access internet

I setup an Openvpn server on a centos box and I can get the client to connect (osx) but can't access the internet or even the local network. I thought maybe DNS but couldn't access any sites via IP. ...
3
votes
1answer
938 views

UCARP: prevent the original master from taking over the VIP when it comes back after failure?

Keepalived can do this by combining the nopreempt option and the BACKUP state on the both nodes: Prevent VRRP Master from becoming Master once it has failed Prevent master to fall back to master ...
0
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0answers
21 views

CentOS (5.1), iptables and nfs: unable to connect from client

I'm trying to successfully mount/connect to a NFS-share from my MacBook. It's running Mavericks and the server set up (remote, webserver) I believe is correct. When I perform showmount -e domain.com ...
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1answer
33 views

BIND DNS zone coalfired.net/IN: coalfired.net.coalfired.net/NS 'ns2.thirteen.pm.coalfired.net' has no address records (A or AAAA)

Since I updated my BIND DNS server I seem to be having problems with it. For some reason, when I try to start the server I get errors such as this appear: zone coalfired.net/IN: ...