Changing the Hostname or IP Address

A Technical Publication of Visidaq Solutions, Inc.

Changing the HP^® System's Hostname and/or IP Address

When changing either the Hostname or the IP address, the hostname and IP address must be identical in the /etc/rc.config.d/netconf and /etc/hosts file, and the hostname must be consistent in the /usr/local/flexlm/licenses/license.dat file for Visidaq to run. It is also possible that the hostname or IP address may be used in other script files that you or someone at your facility have written or enhanced. Here is a procedure for changing the three files which are known to contain this information:

As superuser, edit the following files in the following order:

1. /etc/rc.config.d/netconf

To change the hostname, find the line starting:

        HOSTNAME=

and change the entry inside the quotes that follow the equal sign.

To change the IP address, find the line starting:

        IP_ADDRESS[0]=

and change the entry following the equal sign.

Note that this is a read-only file. To write it, use the vi command w!, then q.

2. /usr/local/flexlm/licenses/license.dat

Find the line starting SERVER (this is usually the first line). Change the word following SERVER to the new hostname. Be careful not to change anything else as it could invalidate the license. Save with the ZZ command.

3. /usr/hosts

Find the current hostname or IP address and change it to the new value. You can change any other host’s IP address or add new hosts at this time, if desired. Save with the ZZ command.

4. If you have edited any .profiles or .dtprofiles to change the DISPLAY environment variable, such as DISPLAY=hostname:0.0, edit them and change the hostname.

Carefully check your work (note: if the Hostname and IP address are not identical in the /etc/rc.config.d/netconf and /etc/hosts files you will not be able to reboot your system). SO CHECK YOUR WORK BEFORE REBOOTING!

Then Reboot the system by entering:

        /sbin/reboot -q

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