Let's talk about yum and p2p in Fedora

[Tim]

On Mon, 2010-12-27 at 11:30 -0500, Genes MailLists wrote:
>   Anyone having NAT has some kind of firewall

Um, no they do not.  A firewall is designed to restrict network traffic,
NAT is not designed as a protective mechanism.  A side effect of NAT is
that (generally) some traffic is broken, but some NAT implementations go
out of their way to help traffic get through in both ways.

If you want a firewall, then actually use one.

>  Not sure what 'things' are really broken today in practice by nat 

Various peer-to-peer transfers (whether that be torrents, naughty
peer-to-peer file programs, or sending your friend something through
instant messenger programs), FTP, email...

> certainly ftp is typically no longer used with separate incoming port

It most certainly is.  There's two modes of using FTP, and both are
still used.

-- 
[tim at localhost ~]$ uname -r
2.6.27.25-78.2.56.fc9.i686

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