I need to change the hostname of one of my servers runnin Debian Lenny and ISPconfig3. Is it safe to do this on a server that has already some websites and email's on it? Do I only need to run: Code: /etc/init.d/hostname.sh stop echo new.servername.tld > /etc/hostname /etc/init.d/hostname.sh start and set the new hostname in the /etc/hosts file? Or do I need to change more things? Setting the reverse DNS will be done by mij ISP.