Firewall suggestions

[Petter Adsen]

I have a hosted VM with a provider, which I've set up mainly as a
private mail server. It needs to be protected by some sort of firewall,
but there are several to choose from, apart from just writing rules for
iptables by hand. I don't think I'll be needing an extreme amount of
rules.

Writing rules for iptables is not something I've done in many years, so
I was wondering about using either ufw, shorewall or ferm. Has anyone
got any experience with either of these? I'm looking for something that
is easy to set up and maintain. A pointer to a good guide on any of
these would also be much appreciated, especially one that centers on
protecting a machine that doesn't serve as a firewall for an entire
network, it only has the one interface.

Any advice you could give would be much appreciated.

TIA,

Petter

-- 
"I'm ionized"
"Are you sure?"
"I'm positive."
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