Op vr 10-01-2003, om 05:19 schreef David P James: > Nathan E Norman was roused into action on 2003-01-09 22:22 and wrote: > > On Thu, Jan 09, 2003 at 09:48:41PM -0500, Stephen Gran wrote: > > > >>This one time, at band camp, David P James said: > >> > >>>>As you have noted, there are quite a few variables. Rule out iptables > >>>>and tcpwrappers first - from an address outside the LAN, telnet > >>>>your.host.ip 25 - if the connection times out, it's probably iptables, > >>>>if it's refused, it's either iptables or tcpwrappers. If you connect > >>>>and get the exim greeting banner, then you know that the problem is your > >>>>exim.conf. > >>> > >>>I sshed to my brother's Redhat server and did the telnet my.host.ip 25 > >>>thing back to my server; the connection timed out. I tried a few other > >>>ports (21, 80, 22, 110) and got a connection quite quickly. > >> > >>Then apparently iptables is DROPping connections to that port - fix that > >>and we'll move from there. > > > > > > Jumping in late, but isn't it also possible that the OP's ISP is > > blocking port 25 (a common spam-fighting technique) ? > > > > That's possibly it... That would also explain why I can get to the > server's port 25 from behind the firewall, though I can get to it's port > 25 on the external interface from behind the firewall as well. I'm > reading conflicting reports as to whether or not Cogeco here in Kingston > actually blocks port 25. > > -- > David P. James > 4th Year Economics Student > Queen's University > Kingston, Ontario > http://members.rogers.com/dpjames/ > > The bureaucratic mentality is the only constant in the universe. > -Dr. Leonard McCoy, Star Trek IV
I had something similar when setting up my server and the ssh service. My isp blocks anything under 1024. So if i want to setup ssh i cannot use port 22 on my server but have to use another port > 1024. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
