Configure TCP/IP HOWTO

From Genunix

phani writes: > I successfully installed the Landriver for AMD64 VIA. But I want the complete details how to configure my TCP/IP. > I am unable to configure my TCP/IP network.. > plese anyone help me

The short answer is "do sys-unconfig, reboot, and answer the questions."

If you prefer to hack around with it:

 - Use "ifconfig -a plumb ; ifconfig -a" to get an idea of what
   interfaces are available.

 - If you're using a statically-configured address, put it in
   /etc/hostname.$IF, where "$IF" is one of the interfaces determined
   above.

 - If you're using DHCP instead, then just touch /etc/hostname.$IF
   and /etc/dhcp.$IF.

 - Next, you may need to figure out how to get routes.  If you're
   using a static default router, put it in /etc/defaultrouter.  If
   you're using statically configured arbitrary routes, use
   /usr/sbin/route and the "-p" option.  If you're using DHCP, then
   the server may give you a default route and that may be enough.
   If you're using RIP, OSPF, or ICMP router discovery, see the
   routeadm command.

 - Next, set up the name services.  If you use DHCP, this should be
   automatic.  Otherwise, copy /etc/nsswitch.dns to
   /etc/nsswitch.conf and edit if necessary.  Put any static
   definitions you need in /etc/hosts.  Set up /etc/resolv.conf with
   your name servers and domain (if any).

 - Next, you might need a local host name.  This is true if you're
   not using DHCP, or if your DHCP server doesn't offer a host name
   (many simple ones do not).  Use /etc/nodename to set that.

You can then use:

 - "ping -n $IPADDR" (with some external IP address) to test
   routing.  Start with $IPADDR set to your local default router.

 - "nslookup" to test DNS itself (the /etc/resolv.conf file).

 - "getent hosts $NAME" to test name services (/etc/nsswitch.conf and
   the underlying resolver, such as DNS).