Address Ubuntu under resolv.conf lost domain, search config

Ubuntu uses the 10.04 TLS version and the NIC uses DHCP to obtain the IP.

The original configuration of the resolv.conf under Ubuntu:

NameServer 128.224.160.11
NameServer 147.11.57.128
NameServer 147.11.57.133
Domain wrs.com
Search Wrs.com windriver.com

However, the configuration of domain and search will be lost every time the computer restarts.

Google is related to the situation, ubuntu12.04 because Netwok-manager will automatically generate and overwrite resolv.conf, there will be similar problems, but not my current ubuntu10.04 should exist problems.

Combined with some google results, and then look at the Dhclient,dhcp-options man document, the conclusion should be that the DHCP protocol itself will exist options ' domain ', ' search ' configuration, thus covering the original relevant configuration.

The workaround is to include the appropriate configuration in the Dhcp-client configuration document so that no configuration is lost;

$ vim/etc/dhcp3/dhclient.conf

To join the configuration:

Supersede Domain-name "wrs.com";
Prepend domain-search "wrs.com", "windriver.com";

Then restart your computer and find that/etc/resolv.conf has added a new entry:

Domain wrs.com
Search Wrs.com windriver.com