[Novalug] determining where a port is blocked

gregory pryzby greg at pryzby.org
Wed Nov 14 08:03:28 EST 2007


It appears that a few ports are allowed into verizon's network IF you
put the machine 'in the dmz'. 
21, 22, 25, 37, 53, 113 and 443

So, running imap or tunneling on those ports will work...


On Wed, Nov 14, 2007 at 07:29:33AM -0500, gregory pryzby wrote:
> What am I missing or not communicating?
> 
> From what I can tell, only port 22 is getting to imap.pryzby.org
> 
> on laptop.pryzby.org (somewhere on the web)
>    ssh -2 -L 143:imap.pryzby.org:22 (since on 22 is allowed in)
>    MUA uses 127.0.0.1:143
> on imap.pryzby.org
>    have imapd listen on 22
> 
> And now NO ssh shell access, correct?


-- 
greg pryzby                              greg at pryzby dot org
AIM: gpryzby                             http://pryzby.org/
fingerprint: 8A1A DB90 869F 5DD1 D6E9 EEB6 C156 6B04 849F A86F
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://calypso.tux.org/pipermail/novalug/attachments/20071114/3dffca5c/attachment.pgp


More information about the Novalug mailing list