Why do I get an error message like Can lookup hostname at miniserv.pl line 169 when starting or installing Webmin?
This can happen if your system’s hostname (displayed by the hostname command) does not have an IP address associated with it in the DNS or in the /etc/hosts file. The solutions are to either update /etc/hosts with the correct IP address for your server (or 127.0.0.1 if you are not on a network), or to edit the file /etc/webmin/miniserv.conf and remove the line syslog=1. You will then be able to start Webmin with the command /etc/webmin/start. Upgrading to Webmin 0.990 or above will also solve this problem.