Advice and answers from the Hostrare TeamKnowledge base

Troubleshoot - by Hostrare

Update On: 23 Jul 2021Restore cpanel server from corrupted drive

Restore the Cpanel server from the damaged drive. If your server drive got damaged and want to recover data from it then you can use the following steps to recover data from the problematic drive.
Rsync holds for remote sync. rsync is applied to perform the backup service in UNIX / Linux. rsync benefit is applied to synchronize the reports and files. We can use this to recover the database from a corrupt drive.
Ask your DC to connect corrupted drive as secondary drive and mount drive as olddrive folder

mount /dev/sdc /olddrive

We can light the following backup data from the old drive
If possible, do this method through SCREEN.

rsync -vrplogDtH /olddrive/usr/local/apache/conf /usr/local/apache
rsync -vrplogDtH /olddrive/var/named /var
rsync -vrplogDtH /olddrive/home/* /home
rsync -vrplogDtH /olddrive/usr/local/cpanel /usr/local
rsync -vrplogDtH /olddrive/var/lib/mysql /var/lib
rsync -vrplogDtH /olddrive/var/cpanel /var
rsync -vrplogDtH /olddrive/usr/share/ssl /usr/share
rsync -vrplogDtH /olddrive/var/ssl /var
rsync -vrplogDtH /olddrive/usr/local/cpanel/3rdparty/mailman /usr/local/cpanel/3rdparty
rsync -vrplogDtH /olddrive/var/log/bandwidth /var/log
rsync -vrplogDtH /olddrive/usr/local/frontpage /usr/local
rsync -vrplogDtH /olddrive/var/spool/cron /var/spool
rsync -vrplogDtH /olddrive/root/.my.cnf /root
rsync -vrplogDtH /olddrive/etc/httpd/conf/httpd.conf /etc/httpd/conf

Copy all old drive /etc folder configuration files.

cd /olddrive/etc

rsync -vrplogDtH secondarymx domainalias valiases vfilters exim* proftpd* pure-ftpd* passwd* group* *domain* *named* wwwacct.conf cpupdate.conf quota.conf shadow* *rndc* ips* ipaddrpool* ssl hosts /etc

Updating scripts and restarting services:

/scripts/upcp
/scripts/updatenow
/scripts/easyapache
/scripts/securetmp
/scripts/fixeverything

Restarting services as:

/scripts/restartsrv httpd
/scripts/restartsrv cpanel
/scripts/restartsrv mysql
/scripts/restartsrv named
/scripts/restartsrv exim

Done… Thats all!!!

If you need to restore data to remote server then copy files to remote server. Enable SSH key authorized login without root password between both servers.

Go to old serve which is corrupted drive.

cd /etc

rsync -vrplogDtH secondarymx domainalias valiases vfilters exim* proftpd* pure-ftpd* passwd* group* *domain* *named* wwwacct.conf cpupdate.conf quota.conf shadow* *rndc* ips* ipaddrpool* ssl hosts root@84.23.43.45:/etc

(84.23.43.45 is assumed as the IP of the new server to which we are moving the data.)

Now we need to transfer everything else.

rsync -vrplogDtH /usr/local/apache/conf root@84.23.43.45:/usr/local/apache
rsync -vrplogDtH /var/named root@84.23.43.45:/var
rsync -vrplogDtH /home/* root@84.23.43.45:/home
rsync -vrplogDtH /usr/local/cpanel root@84.23.43.45:/usr/local
rsync -vrplogDtH /var/lib/mysql root@84.23.43.45:/var/lib
rsync -vrplogDtH /var/cpanel root@84.23.43.45:/var
rsync -vrplogDtH /usr/share/ssl root@84.23.43.45:/usr/share
rsync -vrplogDtH /var/ssl root@84.23.43.45:/var
rsync -vrplogDtH /usr/local/cpanel/3rdparty/mailman root@84.23.43.45:/usr/local/cpanel/3rdparty
rsync -vrplogDtH /var/log/bandwidth root@84.23.43.45:/var/log
rsync -vrplogDtH /usr/local/frontpage root@84.23.43.45:/usr/local
rsync -vrplogDtH /var/spool/cron root@84.23.43.45:/var/spool
rsync -vrplogDtH /root/.my.cnf root@84.23.43.45:/root
rsync -vrplogDtH /etc/httpd/conf/httpd.conf root@84.23.43.45:/etc/httpd/conf

Dont forget to change remote server ip address in configuration.

replace  to 84.23.43.45 — /var/named/*.db
replace  to 84.23.43.45 — /usr/local/apache/conf/httpd.conf

Then updating scripts and restarting services…