Novell LINUX ENTERPRISE SERVER 10 SP2 - INSTALLATION AND ADMINISTRATION Installation Manual page 954

936 Installation and Administration
network hardware is faulty. Refer to Step 4c (page 937) for information about
this.
4b Use host hostname to check whether the hostname of the server you
are trying to connect to is properly translated into an IP address and vice
versa. If this command returns the IP address of this host, the name service
is up and running. If the host command fails, check all network configura-
tion files relating to name and address resolution on your host:
/etc/resolv.conf
This file is used to keep track of the name server and domain you are
currently using. It can be modified manually or automatically adjusted
by YaST or DHCP. Automatic adjustment is preferable. However, make
sure that this file has the following structure and all network addresses
and domain names are correct:
search fully_qualified_domain_name
nameserver ipaddress_of_nameserver
This file can contain more than one name server address, but at least
one of them must be correct to provide name resolution to your host. If
needed, adjust this file using the YaST DNS and Hostname module.
If your network connection is handled via DHCP, enable DHCP to
change hostname and name service information by selecting Change
Hostname via DHCP and Update Name Servers and Search List via
DHCP in the YaST DNS and Hostname module.
/etc/nsswitch.conf
This file tells Linux where to look for name service information. It should
look like this:
...
hosts: files dns
networks: files dns
...
The dns entry is vital. It tells Linux to use an external name server.
Normally, these entries are automatically made by YaST, but it never
hurts to check.
If all the relevant entries on the host are correct, let your system admin-
istrator check the DNS server configuration for the correct zone infor-