> >>>>> I still can't send mail though, with or without > >>>>> authentication. I get this when port scanning with nmap: > >>>>> > >>>>> 25/tcp filtered smtp > >>>>> > >>>>> Does that mean my host is blocking the smtp port? > >>>> It's possible. Or, perhaps you're behind a firewall without > >>>> that port open? > >>> My local network firewall here? All outgoing connections on > >>> this firewall are accepted. > >>> > >>>> Many ISPs do block 25. send me an IP if you want me to map > >>>> from here. Otherwise, I'm sure if it looks closed, and you > >>>> have it open on your end, it's got to be an ISP blockage. > >>> When I nmap my remote server I get these filtered results: > >>> > >>> 25/tcp filtered smtp 130/tcp filtered cisco-fna 131/tcp > >>> filtered cisco-tna 132/tcp filtered cisco-sys 133/tcp > >>> filtered statsrv 134/tcp filtered ingres-net 135/tcp filtered > >>> msrpc 136/tcp filtered profile 137/tcp filtered netbios-ns > >>> 138/tcp filtered netbios-dgm 139/tcp filtered netbios-ssn > >>> 445/tcp filtered microsoft-ds 3128/tcp filtered squid-http > >>> 4444/tcp filtered krb524 6881/tcp filtered bittorent-tracker > >>> 6969/tcp filtered acmsoda > >>> > >>> So that all must be filtered by my ISP (Cox)? > <snip> > > > > I'm thinking I may not have explained this properly. My local ISP > > is Cox and I get the above list of filtered ports when port > > scanning my remote machine which is hosted halfway across the > > country. Cox can't prevent me from scanning the SMTP port on my > > remote machine right? My host must be filtering the ports? > > > > - Grant > Can you please ssh to your box and run an nmap from your box > (locally)? This will answer if smtp and imap are running and if they > are being filtered by your isp. I'm not sure if someone mentioned > before but imap might not be configured to listen on anything besides > 127.0.0.1. I wouldn't be surprised if Cox filters 25, but nmapping > locally will shed some light on it.
I did this and nmap reports smtp is open and no ports are filtered. So those filtered ports are all Cox-filtered I guess. - Grant > Thanks! > Eric -- gentoo-user@lists.gentoo.org mailing list
