HP-UX HB v13.00 Ch-09 - Networking Basics

HP-UX Handbook – Rev 13.00 Page 13 (of 27)

Chapter 09 Network Basics

October 29, 2013

1000Base-T Dual-port Adapter

To configure the network on your system you should also check/edit the file /etc/hosts.

It should contain at least the line “127.0.0.1 localhost loopback” and one additional line for each

local IP address. For interoperability with other name services you should use the following

syntax:

Even if it is not mandatory, it is strongly recommended to create/activate the file

/etc/nsswitch.conf to prevent problems caused by the fact that different versions of libc

(libc.1, libc.2) behave differently from the side effects of IPv6 enablement.

In a standard IPv4 environment the following entries in nsswitch.conf should be present:

hosts: files [NOTFOUND=continue] dns

ipnodes: files

Replace dns by nis or ldap or add some additional name resolution services if needed;

# man nsswitch.conf

If your system uses DNS, (many applications today will use name resolution) – check/create the

file /etc/resolv.conf.

It has to contain a domain or search statement, which defines the local domain name(s) and up to

three lines with nameserver definitions. Compare with this simple example:

# cat /etc/resolv.conf

search deu.hp.com emea.hpqcorp.com

nameserver 16.58.37.124

The init process will use this information during startup (/sbin/rc2.d/S*) to configure the NIC

correctly. It will be done using the commands:

ifconfig - initialize interface

route - add routes

lanadmin - change speed/duplex settings

Starting with 11.31 the nwmgr command became available.

nwmgr - network interface management command for LAN and RDMA interfaces.

# nwmgr --get

Name/ Interface Station Sub- Interface Related

ClassInstance State Address system Type Interface