No results found

Your search did not match any results.

We suggest you try the following to help find what you’re looking for:

  • Check the spelling of your keyword search.
  • Use synonyms for the keyword you typed, for example, try “application” instead of “software.”
  • Try one of the popular searches shown below.
  • Start a new search.
Trending Questions
 

Changing a Host Name or IP Address on the Solaris OS

Ross Moffatt, August 2007

Overview

This tech tip shows how to change the host name or IP address of a system running the Solaris OS.

This information is sourced in part from Sun InfoDoc 21252, "How to Change the hostname and/or IP Address Without Running the sys-unconfig Command".

Option 1: Using sys-unconfig

Using sys-unconfig resets a number of files back to default, then shuts down the host. What isn't pointed out in the man page is that on reboot, you are asked configuration questions to populate the files. The questions are the same as when a new server is delivered, or when you load the operating system from scratch.

So on boot you will get something like this:

 Select the language you want to use: <select your language>
 
 Select a Locale,
 Please make a choice (0 - 59), or press h or ? for help: 
<select your location>
 
 What type of terminal are you using?
 Type the number of your choice and press Return: 
<select your terminal type, I use a DEC VT100>
 
 F2 continue, F2 continue
 
 Network Connectivity
       Networked [X] Yes
 
 DHCP
       Use DHCP [X] No
 
 Primary Network Interface
       Primary network interface [X] eri0
 
 Host Name <hostname>
 
 IP Address <ipaddress>
 
 Subnets
       System part of a subnet [X] Yes
 
 Netmask
 <netmask>
 
 IPv6
       Enable IPv6 [X] No
 
 Set a default Route
       [X] Specify one
 Default Route IP Address
       Router IP Address: <defaultrouter>
 
 Confirm Information
       F2 continue
 
 Configure Security Policy:
       Configure Kerberos Security [X] No
 
 Confirm Information
       F2 continue
 
 Name Service
       Name service [X] DNS
 
 Domain Name
       <dnsdomain>
 
 DNS Server Address
       Servers IP Address: <nameserver1>
       Servers IP Address: <nameserver2>
       Servers IP Address:
 
 DNS Search List
       Search Domain: <dnsdomain>
       Search Domain:
       Search Domain:
       Search Domain:
       Search Domain:
 
 Confirm Information
       F2 continue
 
 Time Zone
       Regions [X] <select your region>
 
 Time Zone
       Time zones [X] <select your time zone>
 
 Date and Time
   > Accept the default date and time or enter new values.

Option 2: Editing Files

Host Name Change

For Solaris versions prior to 7, check/edit:

/etc/inet/hosts
/etc/nodename
/etc/hostname.<interface>

where <interface> is the name of the primary interface, e.g. bge0.

/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts

Then reboot the system.

For Solaris versions 7 to 9, check/edit:

/etc/inet/hosts
/etc/nodename
/etc/hostname.<interface>

where <interface> is the name of the primary interface, e.g. bge0.

/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts
/etc/inet/ipnodes

Then reboot the system.

For Solaris version 10, check/edit:

/etc/inet/hosts
/etc/nodename
/etc/hostname.<interface>

where <interface> is the name of the primary interface, e.g. bge0.

/etc/inet/ipnodes

Then reboot the system.

IP Address Change

For Solaris versions prior to 7, check/edit:

/etc/inet/hosts
/etc/hostname.<interfaces>

where <interfaces> are the names of the interfaces, e.g. bge0, bge1, eri0.

/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts

If you are moving to a new subnet, check/edit:

/etc/inet/netmasks
/etc/defaultrouter
/etc/resolv.conf

Then reboot the system.

For Solaris versions 7 to 9, check/edit:

/etc/inet/hosts
/etc/hostname.<interfaces>

where <interfaces> are the names of the interface, e.g. bge0, bge1, eri0.

/etc/net/ticlts/hosts
/etc/net/ticots/hosts
/etc/net/ticotsord/hosts
/etc/inet/ipnodes

If you are moving to a new subnet, check/edit:

/etc/inet/netmasks
/etc/defaultrouter
/etc/resolv.conf

Then reboot the system.

For Solaris version 10, check/edit:

/etc/inet/hosts
/etc/hostname.<interfaces>

where <interfaces> are the names of the interface, e.g. bge0, bge1, eri0.

/etc/inet/ipnodes

If you are moving to a new subnet, check/edit:

/etc/inet/netmasks
/etc/defaultrouter
/etc/resolv.conf

Then reboot the system.

About the Author

Ross Moffatt has been a UNIX System Administrator for more than 10 years and can be contacted at ross.stuff@telstra.com.