====== Migrate from one to another ispCP server ======

//This HowTo is probably not complete, if you find something missing, please report this in the forum!//

//**Besides, this HowTo was used for ispCP RC2, so there will be many changes till today and it will not work out of the box. But it shall give you an idea what has to considered for a migration.**//

We'll call the server from which the ispCP-installation shall be migrated **server1** and the one, where the data shall be moved to **server2**. On **server2**, the operating system (of course..) and all packages ispCP needs are already installed.

===== Copy data with rsync =====

There are some files and directories which have to be copied without deleting existing content and some where existing content has to be deleted. So we create two files on server1:

**/root/rsync_list_withoutdelete.txt**

  /etc/aliases
  /etc/aliases.db
  /etc/apache2
  /etc/bind
  /etc/courier
  /etc/cron.d
  /etc/cron.daily
  /etc/cron.hourly
  /etc/cron.monthly
  /etc/crontab
  /etc/crontab.dpkg-old
  /etc/cron.weekly
  /etc/default
  /etc/group
  /etc/group-
  /etc/init.d
  /etc/ispcp
  /etc/logrotate.d
  /etc/logwatch
  /etc/mailman    # only if you use mailman
  /etc/mysql
  /etc/nagios2    # only if you use nagios
  /etc/nagios-plugins # only if you use nagios
  /etc/passwd
  /etc/passwd-
  /etc/php4
  /etc/php5
  /etc/postfix
  /etc/postgrey
  /etc/proftpd
  /etc/rc0.d
  /etc/rc1.d
  /etc/rc2.d
  /etc/rc3.d
  /etc/rc4.d
  /etc/rc5.d
  /etc/rc6.d
  /etc/rcS.d
  /etc/rkhunter.conf
  /etc/shadow
  /etc/shadow-
  /etc/sudoers
  /etc/syslog-ng
  
  # maybe you want to add some other directories here of programs you have installed
  
**/root/rsync_list_withdelete.txt**
  
  /usr/local/bin
  /usr/local/src
  
  # only if you use mailman
  /var/lib/mailman/archives
  /var/lib/mailman/data
  
  /var/lib/postgrey
  
  /var/log/apache2
  
  /var/mail
  
  /var/spool/cron
  
  /var/www

Now, we'll call rsync on server1 like this:

Without deletetion:
  server1 # rsync -arv --numeric-ids --files-from=/root/rsync_list_withoutdelete.txt / root@server2:/ | tee "/root/rsync_withoutdelete_`date +%Y-%m-%d_%H-%M`.log"

With deletion:
  server1 # rsync -arv --numeric-ids --delete --files-from=/root/rsync_list_withdelete.txt / root@server2:/ | tee "/root/rsync_withdelete_`date +%Y-%m-%d_%H-%M`.log"

By using the tee command you'll get a logfile of which is copied under /root.

===== Copy the MySQL-Databases =====

Create a dump on server1 and copy it to server2:

  server1 # mysqldump -u root --all-databases --opt -Qc --add-drop-database -p -r /root/mysqldump.sql
  server1 # scp /root/mysqldump.sql root@server2:/root

Import the mysqldump on server2:

  server2 # mysql -u root -p < /root/mysqldump.sql
  server2 # mysql -u root -p
    mysql> FLUSH PRIVILEGES;
    mysql> quit

===== Manual changes =====

After mirroring the data you have to do the following changes manually:

  * Correct your hostname and your hosts-file, if necessary (/etc/hostname and /etc/hosts)
  * Delete the file /etc/apache2/sites-enabled/000_default.conf, if existent
  * Create the directory /var/log/ispcp
  * Change the IP-Adress in the apache config files:  sudo find /etc/apache2 -type f -exec sed -i 's/server1-ip/server2-ip/g' {} \;
  * Change the IP-Adress in the ispcp config files (for future updates):  sudo find /etc/ispcp -type f -exec sed -i 's/server1-ip/server2-ip/g' {} \;
  * Check other IP-Adress's occurences : find /etc -type f -exec grep -l  server1-ip {} \;
  * Check file permissions for postfix: /etc/init.d/postfix check (i.e. do a //chown postfix `find /var/spool/postfix -user Debian-exim`//)
  * Update the IP stored in the ispcp-database:

  # /etc/init.d/ispcp_daemon stop
  # mysql -p
  mysql> USE ispcp;
  mysql> UPDATE server_ips SET ip_number = "server2-ip", ip_domain = "yourserver2domkain", ip_alias = "yourserver2alias" WHERE ip_id = 1;
  mysql> UPDATE `domain` SET `domain_status` = 'change' WHERE `domain_status` = 'ok';
  mysql> UPDATE `subdomain` SET `subdomain_status` = 'change' WHERE `subdomain_status` = 'ok';
  mysql> UPDATE `domain_aliasses` SET `alias_status` = 'change' WHERE `alias_status` = 'ok';
  mysql> UPDATE mail_users SET status="toadd" where status="ok";
  mysql> quit
  # /var/www/ispcp/engine/ispcp-rqst-mngr
  # /etc/init.d/ispcp_daemon start