# hostnamectl set-hostname newhostname

Then edit following files by replacing old hostname with new hostname if it exists in the files.

+++++
# /etc/hosts
# /etc/sysconfig/network
# /home/interworx/iworx.ini
# /var/qmail/control/locals
# /var/qmail/control/me
# /var/qmail/control/rcpthosts
# /var/qmail/control/plusdomain
# /var/qmail/control/smtpgreeting

++++

Restart the network and iworx services and reboot.

• interworx