Comment 3 for bug 777785

append domain-search "subdomain1.company.com", "subdomain2.company.com", "company.com"; is the format that works. I get the following in resolv.conf:

search subdomain1.company.com. subdomain2.company.com. company.com.

If I remove the security patch, and use the append line you suggest, I get the following in resolv.conf:

search subdomain1.company.com\032subdomain2.company.com\032company.com.

Which is obviously wrong.

The documentation is pretty clear: option domain-search "example.com", "sales.example.com", "eng.example.com";
See http://manpages.ubuntu.com/manpages/natty/en/man5/dhcp-options.5.html

What release were you using that worked with the append line you've been using for years? What did the resolv.conf file look like?