CentOS - Sep 2015 - OT: closing a port on home router

On 9/22/2015 1:45 PM, Fred Smith wrote:
> Actually, connecting to port 22 works fine, or did until my last hacking
> session on the router. Which is why I wanted to make it inaccessible.
if you're forwarding WAN port 2222, I do not understand what your router 
is doing with port 22, unless the router itself is also running a sshd



-- 
john r pierce, recycling bits in santa cruz

On Tue, Sep 22, 2015 at 03:09:18PM -0700, John R Pierce
wrote:
> On 9/22/2015 1:45 PM, Fred Smith wrote:
> >Actually, connecting to port 22 works fine, or did until my last
hacking
> >session on the router. Which is why I wanted to make it inaccessible.
> 
> if you're forwarding WAN port 2222, I do not understand what your
> router is doing with port 22, unless the router itself is also
> running a sshd
well, not 2222, but another port I won't identify here, and it
is forwarded to 22 on my linux box. The idea was to put ssh on an
unusual port. but I couldn't figure out how to close port 22, which
was open by default on the router, apparently. I still don't see any
way in its UI to do it, and didn't especially want to have to write
a custom firewall rule. So I just forwarded WAN/22 to port 9 on
the LAN side of the router.

-- 
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 .----    Fred Smith   /              
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 /    /  /   /__) /  /  /__) .+'           Home: fredex at
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/    /  (__ (___ (__(_ (___ / :__                                 781-438-5471 
-------------------------------- Jude 1:24,25 ---------------------------------

On Tue, 2015-09-22 at 18:52 -0400, Fred Smith wrote:
> well, not 2222, but another port I won't identify here, and it
> is forwarded to 22 on my linux box.
Could an 'idea' also be to close permanently port 22 and configure SSH
to use a completely different port ?

Inviting hackers by having a functioning, in one way or another, port 22
is asking for trouble.


-- 
Regards,

Paul.
England, EU.      England's place is in the European Union.