[Fedora] Re: Blocking SSH ... BUT...

Ashley M. Kirchner ashley at pcraft.com
Tue Sep 18 18:44:41 UTC 2007


Mike Wright wrote:
> Allow your subnets before the above rules.  Here's a sample rule:
>
> -A INPUT -s 10.0.0.0/24 -p tcp --dport 22 --syn -j ACCEPT
> # subnet    ^^^^^^^^^^^
>
> You'd need one rule for each subnet.
>
> hth

    Awesome Mike, that worked like a charm.  Thanks!

    Somewhat related question: would the same rules work for ftp attacks 
as well?  Obviously replacing the port number with 21, but would they 
work?  Duplicate the lines, replace port and hope that ftp also gets 
curbed the same way?

-- 
W | It's not a bug - it's an undocumented feature.
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  Ashley M. Kirchner <mailto:ashley at pcraft.com>   .   303.442.6410 x130
  IT Director / SysAdmin / Websmith             .     800.441.3873 x130
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