Quelle entrée de /etc/hosts associe myhost.example.com à 192.168.1.100 ?
/etc/hosts
myhost.example.com
192.168.1.100
127.0.0.1 myhost.example.com
nameserver myhost.example.com
192.168.1.100 myhost.example.com
myhost.example.com 192.168.1.100