Web Hosting Provider - finding blocked ports

Tom Buskey tom at buskey.name
Fri Jan 20 10:22:00 EST 2006


On 1/20/06, Drew Van Zandt <drew.vanzandt at gmail.com> wrote:
>
> I second the SagoNet anti-vote.  They've gotten better recently, but I
> still don't trust them, and they block some outbound ports, AND won't tell
> me which they block.  WTF?



If you can run nmap on the server you can find out what ports are blocked:

nmap -P0 login.oscar.aol.com

AIM has every port open to try to get around firewall filtering.  If you
find an open port in nmap, it's not blocked by the firewall.




--
A strong conviction that something must be done is the parent of many bad
measures.
  - Daniel Webster
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