Mail Server and other hosts down

     The machine which hosts the mail spool, client mail server, and some other hosts is currently down.  It failed to reboot because of missing software prohibiting it from accessing the Internet.  Since it can not access the Internet I can not restore the missing software that way.  I attempted to restore from backups but do not know all of the files involved in the package.  I am burning a DVD and will be heading back down to the co-lo to complete the restoration once I have that in hand.