Re: how to block brute force attacks on reverse tunnels?

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Hi,

On Thu, Apr 25, 2024 at 11:14:56AM -0400, Steve Newcomb wrote:
> For many years I've been running ssh reverse tunnels on portable Linux,
> OpenWRT, Android etc. hosts so they can be accessed from a server whose IP
> is stable (I call such a server a "nexus host"). 

I tend to close everything "towards the Internet", except a single SSH
port which is then set to pubkey-only.

So you'd need to login to the nexus host and jump onwards from there
("ssh -J nexus-host" :) ) - which is not what you have been asking for,
but might be easier to achieve.

gert

-- 
"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             gert@xxxxxxxxxxxxxx
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