The Perfect Server - CentOS 6.2 x86_64 With Apache2 [ISPConfig 3] - Page 3

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Submitted by falko (Contact Author) (Forums) on Thu, 2012-01-12 18:45. ::

4 Adjust /etc/hosts

Next we edit /etc/hosts. Make it look like this:

vi /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
192.168.0.100   server1.example.com     server1

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

 

5 Configure The Firewall

(You can skip this chapter if you have already disabled the firewall at the end of the basic system installation.)

I want to install ISPConfig at the end of this tutorial which comes with its own firewall. That's why I disable the default CentOS firewall now. Of course, you are free to leave it on and configure it to your needs (but then you shouldn't use any other firewall later on as it will most probably interfere with the CentOS firewall).

Run

system-config-firewall

and disable the firewall.

To check that the firewall has really been disabled, you can run

iptables -L

afterwards. The output should look like this:

[root@server1 ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
[root@server1 ~]#

 

6 Disable SELinux

SELinux is a security extension of CentOS that should provide extended security. In my opinion you don't need it to configure a secure system, and it usually causes more problems than advantages (think of it after you have done a week of trouble-shooting because some service wasn't working as expected, and then you find out that everything was ok, only SELinux was causing the problem). Therefore I disable it (this is a must if you want to install ISPConfig later on).

Edit /etc/selinux/config and set SELINUX=disabled:

vi /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

Afterwards we must reboot the system:

reboot

 

7 Enable Additional Repositories And Install Some Software

First we import the GPG keys for software packages:

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*

Then we enable the RPMforge and EPEL repositories on our CentOS system as lots of the packages that we are going to install in the course of this tutorial are not available in the official CentOS 6.2 repositories:

rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

cd /tmp
wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
rpm -ivh rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

(If the above link doesn't work anymore, you can find the current version of rpmforge-release here: http://packages.sw.be/rpmforge-release/)

rpm --import https://fedoraproject.org/static/0608B895.txt
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm
rpm -ivh epel-release-6-5.noarch.rpm

yum install yum-priorities

Edit /etc/yum.repos.d/epel.repo...

vi /etc/yum.repos.d/epel.repo

... and add the line priority=10 to the [epel] section:

[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
#baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
priority=10
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
[...]

Then we update our existing packages on the system:

yum update

Now we install some software packages that are needed later on:

yum groupinstall 'Development Tools'

 

8 Quota

(If you have chosen a different partitioning scheme than I did, you must adjust this chapter so that quota applies to the partitions where you need it.)

To install quota, we run this command:

yum install quota

Edit /etc/fstab and add ,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 to the / partition (/dev/mapper/vg_server1-lv_root):

vi /etc/fstab

#
# /etc/fstab
# Created by anaconda on Fri Dec 16 00:22:26 2011
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/vg_server1-lv_root /                       ext4    defaults,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0        1 1
UUID=d995c881-fbc7-409f-bcad-86d255331a3f /boot                   ext4    defaults        1 2
/dev/mapper/vg_server1-lv_swap swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0

Then run

mount -o remount /

quotacheck -avugm
quotaon -avug

to enable quota.

 

9 Install Apache, MySQL, phpMyAdmin

We can install the needed packages with one single command:

yum install ntp httpd mod_ssl mysql-server php php-mysql php-mbstring phpmyadmin


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Submitted by rader (registered user) on Sat, 2012-06-09 21:39.

cd /tmp
wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-7.noarch.rpm
rpm -ivh epel-release-6-7.noarch.rpm

 Worked for me on CentOS 6.2 i386 flavor.

Submitted by Donald (not registered) on Thu, 2013-01-17 03:10.

Another release:

 wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm 

Is the new hotness.
Submitted by Patricio (not registered) on Tue, 2012-05-29 10:51.
Step 7 (fail wget epel-relase-6-5)

wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm

rpm -Uvh epel-release-6-7.noarch.rpm

Submitted by dave@25west.com (registered user) on Sun, 2012-05-20 01:33.
the wget command in step seven that references http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm needs to be changed to  http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-6.noarch.rpm.
Submitted by DPO (not registered) on Fri, 2012-05-11 16:07.

as reported here: https://bugzilla.redhat.com/show_bug.cgi?id=820360

6.5 link is obsolete http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm

You can use the new version 6.6

http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-6.noarch.rpm

hope this can help D.

Submitted by Anonymous (not registered) on Tue, 2012-02-21 02:05.

wget http://download.fedora.redhat.com/pub/epel/6/i386/epel-release-6-5.noarch.rpm is now at  wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm

 

Submitted by nikitux (not registered) on Wed, 2012-02-01 20:20.
A little Trick for add line priority=10 with sed (only  on enabled repository)

 sed -i -e '/enabled=1/a priority=10'  /etc/yum.repos.d/epel.repo