[Gllug] [Fwd: SSH Security Advisory: Centos (and other distros)]

[Andrew Farnsworth]

On Wed Jul  8  5:11 , tid  sent:

>2009/7/8 Hari Sekhon hpsekhon at googlemail.com>:
>
>>  Or port knocking or similar may be a better choice for the random src problem.
>
>I'm interested in port knocking: does anyone use it in anger? I've heard of a
>few people with home setups, but haven't ever seen it in a larger environment.
>
>Tid

dd-wrt supports this by default.  You can easily setup port knocking to open
ports to various machines behind the firewall.

52,26,4128   -> Open port 22 to machine 192.168.1.15
83,25,993    -> Open port 80 to machine 192.168.1.83
112,82,23    -> Open port 25 to machine 192.168.1.118
2020,113,523 -> Open port 443 to machine 192.168.1.83

etc.

Andy
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