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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CentOS - how to tell what conf file CSF (firewall) is using? csf.conf then restart not updating

in /etc/csf/csf.conf the following is setup LF_CPANEL = "5" LF_CPANEL_PERM = "3600" restarting csf by doing the following csf -r does not seem to have an impact on the above attributes. ...
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47 views

jboss unable to redirect to administrator console

I just installed jboss yesterday and everything seemed to be working fine (first time installing and using jboss). I turned on my computer today and started up the virtual machine (using kvm) that is ...
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1answer
186 views

can't install phpmyadmin have error

I have some error when I tried to install phpmyadin, did I miss something? CentOS 7 # wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-2.noarch.rpm # wget ...
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0answers
112 views

yum dependency conflicts already installed package

I want to install php 5.6 from the webtatic repo: yum install php56w php56w-opcache php56w-mysql php56w-mcrypt php56w-pdo php56w-xml One of the dependencies is httpd: Installing for ...
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1answer
118 views

Spacewalk client OSAD service SSL error

I have some problems with my freshly Spacewalk setup. I have registered my test client, and installed osad service to avoid executing rhn_check. But when I start osad service, I get the following ...
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35 views

Jenkins freezes my server periodically and randomly

I have a web server running a website. Because I only have one server, I want to install Jenkins on it. I have followed the installing instruction from Jenkin's website, but the first problem I met is ...
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1answer
75 views

how to send email from an instance without using sendgrid? [closed]

My project up and beta running on google compute engine. I want to set-up email server. For that i followed http://www.krizna.com/centos/setup-mail-server-in-centos-6/ I edited /etc/postfix/main.cf ...
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1answer
80 views

CentOS 7 MTU setting not works

I am using CentOS 7 to test some network performance. The interface setting is normal like that : saberin@localhost ~]$ ifconfig enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ...
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1answer
40 views

using crond to let the yum auto update, is that safe enough?

Nowadays, there are many bugs are found. So that, I am wondering, If I use crond to execute yum update -y per day, will it make things better?(It's a server, I don't want it stop working due to ...
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2answers
90 views

SELinux interfering with Apache / PHP [duplicate]

On my installation of CentOS 7, SELinux is enabled by default. This is preventing Apache from properly reading PHP files in the standard /var/www/html document root (the browser is blank when ...
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2answers
232 views

Logstash Forwarder doesn't start up with chkconfig in CentOS 5

I have set up logstash-forwarder on a CentOS 5 machine installing it from this RPM: http://download.elasticsearch.org/logstash-forwarder/packages/logstash-forwarder-0.3.1-1.x86_64.rpm When I went ...
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1answer
92 views

CentOS with multiple NIC and static route

I am trying to setup a CentOS with 3 NIC and static routes. eth0 has IP address 192.168.10.2 and GW:192.168.10.1, eth1 has IP address 192.168.20.2 and GW:192.168.20.1, eth2 has IP address ...
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3answers
59 views

Why I should prevent yum from update kerneI?

I was googling about yum and reading some articles when I stumbled on bunch of articles about disabling yum from update kernel packages. Now I'm wondering why I should do that. When I update system I ...
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0answers
77 views

Apache Time To First Byte [TTFB] sometimes high. Possible ways to identify the cause?

I am trying to figure out, why Apache sometimes processes request very slow. The most time, the "Time To First Byte" is adequate (~ 90ms), but sometimes there are peaks greater than a second. I am ...
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1answer
40 views

Bad user name Apache

When I try to start apache I get error: AH00543: httpd: bad user name apache I can also see that my apache user not exists in /etc/passwd I also tried to uninstall apache, but then I get warning: ...
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1answer
204 views

Nginx reverse proxy with multiple ssl domain

I have problem with Nginx when I need configure it as reverse proxy for multiple locations based on source server, but on one port. For example I have these servers: server1.domain.com ...
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0answers
107 views

PHP found cURL version missmatch

I'm tried to upgrade cURL on CentOS from version 7.19.7 on default to a new version on 7.38.0. It's seem like complete but when I checked on phpinfo it's not match. This is a information when I check ...
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0answers
31 views

Xen VM could not be installed

I have rented a server from Hetzner. I have installed Xen on Dom 0 - Centos 6.5. I couldn't create a Dom1 Centos 6.5 VM. The Error I see is 'Unable to retrieve 'the link for centos image' while ...
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1answer
70 views

Can't login to remote mysqld server with phpMyAdmin, but works in shell

I've read all similar topics already, and didn't find any solution. I have server1 where is phpMyAdmin, and server2 where is mysqld. This setup was working. After updating phpMyAdmin (CentOS), I just ...
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1answer
300 views

Apache kerberos authentication to Active Directory not happening. (Is KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN related?)

My goal is to have Apache authenticate authenticate against AD, without prompting for a username and password, using Kerberos. It currently always shows "401 Unauthorized", and appears to be not ...
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33 views

OpenQRM installation on Centos - database initialisation runs into timeout

I installed OpenQRM on a fresh CentOS 6.5 from the latest source code as described here: ...
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0answers
38 views

VSFTP authentication with client certificate

I have a VPS Box running on CentOS 6.5 with vsftpd. I have setup a user account for login with username/password. My customer now sent me a id_rsa_2048.pub key which he wants to use for ...
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1answer
42 views

Getting vsFTPd to work nicely on new CentOS installation

I need to setup a temporary ftp server within the intra-net at work, and got a brand new virtual CentOS installation on one of our servers. I can reach the server via ssh, install vsFTPd and configure ...
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2answers
76 views

how to use authconfig for ssh through LDAP connection

I'm newbies on Centos7. The ssh connection is working for all user which is the /etc/passwd. That's meaning I can connect to my server with this kind of users I added The other users which are ...
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3answers
87 views

Find Script start time and uptime in centos

I have a php script (cron job) running on my server which takes up a lot of cpu. I took a look on the code and couldn't find anything wrong. Now I have to check the logs for anomaly and for this I ...
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0answers
25 views

LDAP proxy to inject temporary Gerrit users

We are going to use Gerrit as our production Git server and code review tool and we'd like to use Active Directory to manage the server access. Gerrit however supports only one authentication method ...
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1answer
89 views

How to mount drive at Google Cloud (Google Compute Engine)?

I have runned instance in Google Compute Engine with 120Gb boot drive. But I'm not able to use it. 1. sudo df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 9.9G 1.1G 8.3G ...
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1answer
302 views

Rabbit Mq fails to start

Just installed RabitMq on a brand new CentOs6.6 server ( rabbitMq 3.4.1, erlang says 17 ), and it fails to start. Starting rabbitmq-server: FAILED - check /var/log/rabbitmq/startup_{log, _err} ...
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3answers
61 views

How to grant user modify only specific protected file by sudo

I need to grant user modify some files by sudo that have only read-only access. For example, I want to grant user 'hosteditor' modify '/etc/hosts' file. I added to sudoers follow line: hosteditor ...
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0answers
121 views

VNC Not Seeing Gnome Desktop in Centos 7

I have a linux box running CentOS 7, which I installed in bash only mode (so it just boots straight into the command prompt), which I am using as a file server. I could do with having a GUI for ...
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0answers
28 views

Can't access directadmin webinterface

Since today I can't access my directadmin webinterface (using port 2222). I gues it's a bind problem with port 2222. [root@server directadmin]# ./directadmin b200 Debug mode. Level 200 Converting ...
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1answer
68 views

Display a message to all Squid Proxy users

I have a production squid proxy that I am about to decommission soon. The proxy has about 400 users mainly at remote location. We have purchased a new proxy appliance and it is ready for use. At this ...
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1answer
53 views

GRE Tunnel in CentOS

How to create a GRE Tunnel in CentOS pointing all connections to server A for the server B? I have a public server with DDoS protection and need to use this as a firewall to filter acess to the other ...
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0answers
13 views

Horde Will not load Admin page

I have installed horde webmail. After the install I go to mydomain.ca/horde and start the configuration process. Once I set the authentication as MySQL and generate config files it takes me back to ...
2
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1answer
352 views

Cannot connect to PostgreSQL unix domain socket

I'm trying to connect to PostgreSQL Unix domain socket from a PHP web application. Relevant system components: CentOS 7 x64 (SELinux enforced) postgresql93 9.3.5-2PGDG.rhel7 nginx 1.6.2-1.el7.ngx ...
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143 views

MySQL stops unexpectedly on CentOS 6.5 with WHM/Cpanel after migrating server with transfer tool

I recently moved my entire websites from a dedicated CentOS5 server to a CentOS 6.5 on Amazon EC2 with the same cPanel/WHM version. WHM 11.44.1 (build 19) However after angry calls from clients I ...
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2answers
69 views

Do we need enterprise support for RHEL/CentOS and PostgreSQL [closed]

We are an SI currently working on a proposal for an web app solution with tight budget. The 3rd party web app is written in JDK7 is to be deployed to 2 physical server running 3 VM each, one for ...
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1answer
122 views

How to add systemd.setenv in GRUB2

I would like to add systemd.setenv=NSS_HASH_ALG_SUPPORT=+MD5 parameter in grub2 for centos7? I don't know which files I've to modify, and which lines I've to insert this parameter. Thaks for your ...
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1answer
82 views

CentOS 6.4: Yum is not showing any 32 bit options for packages to install

I did a minimun CentOS 6.4 install (x64) and now I need to install Java JRE 32 bits. However, everywhere I read, I understand the .i386 or .i686 packages should be available by default. I cannot find ...
3
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1answer
2k views

Unable to open WireShark in CentOS 6.5

I have installed WireShark in CentOS 6.5 with the following packages using Yum. Dependencies Resolved ================================================================================ Package ...
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1answer
121 views

Centos 7 with SElinux: openvpn and DNS

I'm trying to use openvpn as client on centos 7. It works fine, but i cannot get DNS from server. As you know, there is no resolvconf in new Centos, so, standard update-resolv-conf script doesn't ...
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0answers
32 views

Apache on Centos 6.5 Purge of LDAP cache failed

My logs are filling up with: Purge of LDAP cache failed I have researched as much as I can, and I cannot find a fix. I am running the latest (as of this post) version of Apache, PHP and all of the ...
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votes
1answer
178 views

/bin/sh: fork: Cannot allocate memory

In my web server running with following architecture Centos 6.5 Plesk 12 Nginx 1.6 (As a reverse proxy) Apache 2.2 MySQL 5.5 PHP 5.5 Openfire 1.9.4 Pagespeed web server can have max 500 ...
2
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1answer
33 views

Regular and repetitive sudo alerts from several Linux hosts

I've got several hosts running CentOS 5.11 on the LAN. Lately we've been getting fairly regular sudo alerts (via email) from attempted sudo commands by non-authorized users. Been Googling in case the ...
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0answers
54 views

Installing Horde on CentOS 6 cant find files

I am trying to install Horde on a clean install of CentOS on a vps. The install and config seemed to go ok but when I try and open Horde through my domain (example.com/horde) I get nothing, the page ...
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1answer
28 views

What version of OpenSSL does SendMail use and how is this maintained?

My understanding is that SendMail leverages OpenSSL for STARTTLS functionality (among other things). Does this link dynamically against whatever version of OpenSSL I have installed? Or does sendmail ...
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1answer
67 views

How to respawn a script in RHEL/Centos6 when /etc/inittab has been deprecated?

I have a custom init script and I want that script to be respawned if in case the process dies. In RHEL/Centos 6 /etc/inittab is deprecated. So how should I ensure the process will be respawned?
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48 views

How to access Mail Watch for Mailscanner when I have ZPanel?

I just followed this guide to install Mail Watch for Mailscanner on Centos 6. http://www.ehowstuff.com/how-to-setup-mailwatch-on-centos-6-3/ Unfortuently, I cannot access mailscanner at ...
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1answer
70 views

Tomcat and Jenkins separately on the same server

I have never installed Jenkins as package on CentOS, but now I tried and it doesn't seem to work correctly side-by-side with standalone Tomcat server. First of all, I installed tomcat by yum install ...
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2answers
46 views

Caveats of installing development tools on production server

I want to install some software on production CentOS box which are not available from repository (like tmux etc). I can download the source and compile it locally, but for doing that I'll need ...