a record?

Suresh Ramasubramanian ops.lists at gmail.com
Wed Nov 16 15:55:27 UTC 2005


On 11/16/05, Patrick Lynchehaun <plynchehaun at servecentric.com> wrote:
>
> In Iptables you can keep port 22 closed until needed, opening it first by
> telneting to a higher port say 5500 and Iptables just giving access to this
> ip. If you want to close it again you can telnet back in on another assigned
> port say 5501, thus closing ssh port to that ip.
>

Yup. AKA "port knocking" which I think someone did mention upthread



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