If you have access to a *nix box at the site that's being blocked, you will probably want to take a look at this: http://pwhois.org/lft/index.who
On Tue, Sep 24, 2013 at 9:58 AM, J- P <[email protected]> wrote: > I dont think I explained it correctly then; > > scenario 1; > NAIROBI to HQ (FIOS)NYC - ports 25,443,80,3389, Traffic BLOCKED > > scenario2; > NAIROBI to ANY OTHER ISP in the NYC (RCN/TIME WARNER/BROADVIEW) > ports 25,80,443,3389 Traffic not blocked flows through > > > > > > > > > > >> From: [email protected] >> Date: Tue, 24 Sep 2013 12:50:07 -0400 > >> Subject: Re: [NTSysADM] Connectivity issue >> To: [email protected] >> >> On Tue, Sep 24, 2013 at 12:39 PM, J- P <[email protected]> wrote: >> > Just out of curiousity I decided to telnet from Nairobi to smtp.live.com >> > port 25 , and wouldn't you know it let me right in, i then decided to >> > try a >> > few more smtp servers here in the states and sure as heck it went right >> > in. >> > The Only conclusion is that FIOS is blocking it from here NY. >> >> Many ISPs block common service ports. Blocking TCP/25 (SMTP) is >> especially common, as an anti-spam measure. >> >> -- Ben >> >>
