Specifications

2
SuSE Adminhost for Firewall
#
# networks This file describes a number of net name-to-address
# mappings for the TCP/IP subsystem. It is mostly
# used at boot time, when no name servers are running.
#
loopback 127.0.0.0
localnet 192.168.0.0
# End of networks.
File 2: /etc/networks
/etc/host.conf
Name resolution — the translation of host and network names via the
resolver library — is controlled by this file. This file is only used for
programs linked to the libc4 or the libc5. For current glibc programs,
refer to the settings in /etc/nsswitch.conf. A parameter must al-
ways stand alone in its own line and comments preceded by a ‘#’
sign. Table 2.1 shows the parameters available.
order hosts, bind Specifies in which order the services are ac-
cessed for name resolution. Available ar-
guments are (separated by blank spaces or
commas):
hosts: Searches the /etc/hosts file
bind: Accesses a name server
nis: Via NIS
multi on/off Defines if a host entered in /etc/hosts can
have multiple IP addresses.
nospoof on
alert on/off
These parameters influence the name server
spoofing, but, apart from that, do not exert any
influence on the network configuration.
trim hdomainnamei The specified domain name is separated from
the host name following the host name res-
olution (as long as the host name includes
the domain name). This option is useful if
only names from the local domain are in the
/etc/hosts file, but should still be recog-
nized with the attached domain names.
Table 2.1: Parameters for /etc/host.conf
25SuSE Linux – Firewall on CD2