[rhn-users] install addtional modules

[dlederer at hilltowncharter.org]

Im trying to install and configure Spamassassin;
I type:  perl Makefile.PL
 and I get
 The "sa-update" script requires this module to access compressed
  update archive files.

REQUIRED module missing: Digest::SHA1
optional module missing: Net::DNS
optional module missing: Mail::SPF::Query
optional module missing: IP::Country
optional module missing: Razor2
optional module missing: Net::Ident
optional module missing: IO::Socket::INET6
optional module missing: IO::Socket::SSL
optional module missing: Time::HiRes
optional module missing: Archive::Tar
optional module missing: IO::Zlib



Question: How do I get and install these modules, especially the required
one..
thanks!!
Dan Lederer