How to move mail hosting with ISPConfig3 (dovecot, postfix, apache2, …) from CentOS 5 to CentOS 6

-

28-11-2012

(Here, CentOS 5.8 with ip 10.100.1.2 and CentOS 6.3 with 10.100.1.3)

CentOS-5.8 is installing ISPConfig-3.0.3.3 and we will update to ISPConfig-3.0.4.6 on CentOS-6.3

Step1: Backup mailbox and dbispconfig database on CentOS 5.8

  • Backup all mailbox of users, mail domain

#tar czvf /backup/mailbox.tar.gz /var/mail

  • Backup dbispconfig database

#mysqldump -u root -p dbispconfig >/backup/dbispconfig.sql

#Enter password: …. (password of root user)

Step 2: Installing new CentOS 6.3 and configuring services

Step 3: Restore dbispconfig database and mailbox

  • Using phpmyadmin, drop all tables of dbispconfig databse and import the file dbispconfig.db to dbispconfig database

  • Or use:

    #mysql –host=localhost –user=root –password=XXXXXX < /var/download/dbispconfig.sql

  • Restore mailbox of all mail users

    #cd /

    #tar zxvf /var/download/mailbox.tar.gz

Step 4: Update to ISPConfig-3.0.4.6

  • Download ISPConfig-3.0.4.6.tar.gz (the present, it is lastest and stable version)

    #cd /var/dowload

    #rm -rf ispconfig3_install

    #wget http://prdownloads.sourceforge.net/ispconfig/ISPConfig-3.0.4.6.tar.gz

  • Executing update ISPConfig-3.0.3.3 to ISPConfig-3.0.4.6

    #tar zxvf ISPConfig-3.0.4.6.tar.gz

    #cd ispconfig3_install/install

    #php -q update.php

Here, User still have not login email. We need to tell Dovecot to use the file dovecot.conf that generated by ISPConfig /etc/dovecot.conf and not the default /etc/dovecot/dovecot.conf:

#cd /etc/dovecot

#mv dovecot.conf dovecot.conf.org

#ln -s ../dovecot.conf dovecot.conf

#/etc/init.d/dovecot restart

Comments

Post a Comment

Popular posts from this blog

Web Servers Load balancing with HAProxy

-
HAProxy is a free, very fast and reliable solution offering  high availability , load balancing , and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world’s most visited ones. See more at  http://haproxy.org This tuturial, I use hostname and ip as follows: 10.11.218.250 (haproxy) 10.11.218.251 (srv-web01) 10.11.218.252 (srv-web02) Installing HAProxy server #yum install haproxy [RedHat Systems] #apt-get install haproxy [Debian Systems] Configuring HAProxy Server Opening the main HAProxy configuration file ‘/etc/haproxy/haproxy.cfg’ and editing the following content: #---------------------------------------------------------------- # Global settings global # need to: # to have these messages end up in /var/log/haproxy.log you will # # by adding the '-r' option to the SYSLOGD_OPTIONS in # 1) configure syslog to accept network log events. This i
Read more

Redirect all unencrypted traffic to HTTPS in Apache

-
To redirect all HTTP traffic to HTTPS administrators are encouraged to issue a permanent redirect using the 301 status code. When using Apache this can be achieved by a setting such as the following in the Apache VirtualHosts config: <VirtualHost *:80> ServerName example.com Redirect permanent / https://example.com/ </VirtualHost>
Read more

Using nginx as http load balancer

-
Image
Load balancing across multiple application instances is a commonly used technique for optimizing resource utilization, maximizing throughput, reducing latency, and ensuring fault-tolerant configurations. Nginx is a very efficient HTTP load balancer to distribute traffic to several application servers and to improve performance, scalability and reliability of web applications. Nginx Load balancing methods The following load balancing mechanisms (or methods) are supported in nginx: round-robin least-connected ip-hash See detail at http://nginx.org/en/docs/http/load_balancing.html Initialization Nginx Load Banlancing In this tutorial I use any hostname and ip addresses as follows: srv-lb01 (10.11.218.250) (Nginx load balancer) srv-web01 (10.11.218.251) ( Web server) srv-web02 (10.11.218.252) ( Web server) srv-web03 (10.11.218.253) ( Web server) Note: pointing nginx.vn to 10.11.218.250 (Replace nginx.vn with your real site name) Default load balancing c
Read more