Re: [bitfolk] fail2ban and IPv6

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Author: Andy Smith
Date:  
To: users
Subject: Re: [bitfolk] fail2ban and IPv6

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gpg: Signature made Fri Dec 14 21:07:45 2012 UTC
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gpg: aka "Andrew James Smith <andy@strugglers.net>" [unknown]
gpg: aka "Andy Smith (UKUUG) <andy.smith@ukuug.org>" [unknown]
gpg: aka "Andy Smith (BitFolk Ltd.) <andy@bitfolk.com>" [unknown]
gpg: aka "Andy Smith (Linux User Groups UK) <andy@lug.org.uk>" [unknown]
gpg: aka "Andy Smith (Cernio Technology Cooperative) <andy.smith@cernio.com>" [unknown]
Hi Chris,

On Thu, Dec 13, 2012 at 05:25:26PM +0000, Chris Dennis wrote:
> But I've discovered that fail2ban doesn't know about IPv6 (yet),
> which seems to leave a fairly big hole in the security.


Someone has forked Fail2Ban to add IPv6 support:

    https://github.com/Th4nat0s/fail2ban


so hopefully it won't be too long coming.

I must admit I don't have an IPv6 SSH dictionary attack
countermeasure myself at the moment. However, across 40 of my
IPv6-enabled hosts there have been a total of only four failed
attempts to log in from an IPv6 host. Some of those logs go back
three years...

> Is there an IPv6-aware alternative? A quick search reveals autofwd
> (http://freecode.com/projects/autofwd), but I'd like to hear some
> opinions about it before I try it.


Not tried that one. It looks pretty good though not present in
Debian archive (I see there are some Debian packages provided
though)

Cheers,
Andy

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