> > 127.0.0.1 localhost.localdomain localhost calimero.local > calimero > > Best Regards > Marcus Marcus, Per "man hostname" FILES /etc/hosts /etc/sysconfig/network NOTE Note that hostname doesnât change anything permanently. After reboot original names from /etc/hosts are used again. :-) Do you really think one should tie the hostname to the loopback interface in the /etc/hosts file We recommend that one should not tie the actual hostname or FQDN to the loopback interface. There are very few limited implementation or security seclusion cases where you would want to consider doing that It should look like this as example in /etc/hosts 127.0.0.1 localhost.localdomain localhost calimero.local x.y.z.a calimero.some123domain.com calimero if the machine is not talking to another machine via network, then the hostname doesnt really matter too much now does it? Put a sticker on it. ;-) Production server examples can be provided if you are having major issues. - rh