2012/2/8 Chris <xchris89x at googlemail.com>: > Hi, > > I have several machines running CentOS 6.2 and a strange problem with > the hostname of one machine... After every reboot it loses the fqdn > hostname. > > Here is my confguration: > > ifconfig | grep "inet addr" > inet addr:10.0.0.12 Bcast:10.0.0.255 Mask:255.255.255.0 > inet addr:127.0.0.1 Mask:255.0.0.0 > > /etc/sysconfig/network > > NETWORKING=yes > HOSTNAME=x800.mydomain.local > GATEWAY=10.0.0.1 > > 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 > ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 > 10.0.0.12 x800.mydomain.local x800 > > ... after a reboot: > > hostname > x800.mydomain.local < OK > > hostname -f > hostname: Unknown host < NOT OK > > dnsdomainname > dnsdomainname: Unknown host < NOT OK > > If I set the hostname manually: > > hostname x800.mydomain.local > > hostname -f > x800.mydomain.local < OK > > dnsdomainname > mydomain.local < OK > > Everything is okay ... > > Something I've never experienced before. Does anyone have an idea? > > thx > > -- > Chris Another thing about this, postfix fails on startup: Feb 9 00:49:57 x800 postfix[1387]: warning: valid_hostname: invalid character 13(decimal): x800.mydomain.local? Feb 9 00:49:57 x800 postfix[1387]: fatal: unable to use my own hostname Feb 9 00:49:59 x800 postfix/sendmail[1471]: warning: valid_hostname: invalid character 13(decimal): x800.mydomain.local? Feb 9 00:49:59 x800 postfix/sendmail[1471]: fatal: unable to use my own hostname Because some CentOS system file is corrupted? After setting "hostname x800.mydomain.local" postfix starts normally. -- Chris