Understanding Linux Networking configuration files

*etc/gated.conf*	Configuration for gated. Used only by the gated daemon.
*/etc/gated.version*	Contains the version number of the gated daemon.
*/etc/gateway*	Optionally used by the routed daemon.
*/etc/networks*	Lists names and addresses of networks accessible from the network to which the machine is connected. Used by route command. Allows use of name for network.
*/etc/protocols*	Lists the currently available protocols. See the NAG (Network Administrators Guide) and man page. C interface is getprotoent. Should never change.
*/etc/resolv.conf*	Tells the kernel which name server should be queried when a program asks to “resolve” an IP Address.
*/etc/rpc*	Contains instructions/rules for RPC, which can be used in NFS calls, remote file system mounting, etc.
*/etc/exports*	The file system to be exported (NFS) and permissions for it.
*/etc/services*	Translates network service names to port number/protocol. Read by inetd, telnet, tcpdump, and some other programs. There are C access routines.
*/etc/inetd.conf*	Config file for inetd. See the inetd man page. Holds an entry for each network service for which inetd must control daemons or other servicers. Note that services will be running, but comment them out in /etc/services so they will not be available even if running. Format: <service_name> <sock_type> <proto> <flags> <user> <server_path> <args>
*/etc/sendmail.cf*	The Mail program sendmail’s configuration file. Cryptic to understand.
*/etc/sysconfig/network*	Indicates NETWORKING=yes or no. Read by rc.sysinit at least.
/etc/sysconfig/network-scripts/if*	Red Hat network configuration scripts.

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