David Hláčik wrote: > Hello guys, > I do not know how it is posible : > *vi /etc/postfix/main.cf <http://main.cf>* > # INTERNET HOST AND DOMAIN NAMES > # > # The myhostname parameter specifies the internet hostname of this > # mail system. The default is to use the fully-qualified domain name > # from gethostname(). $myhostname is used as a default value for many > # other configuration parameters. > # > #myhostname = host.domain.tld > myhostname = mail.hlacik.eu > *service postfix restart* > [root at sx1 postfix]# postconf -d myhostname > *myhostname = sx1.labs.hlacik.eu* > What is wrong?? What is in: /etc/hosts /etc/sysconfig/network /etc/sysconfig/network-scripts/ifcfg-ethn (where n is the interface number) ???