> -----Original Message----- > From: Noel Jones [mailto:[EMAIL PROTECTED] > Sent: 13 October 2008 13:36 > To: Paul Cocker; postfix-users@postfix.org > Subject: Re: Postfix listening on 25, unable to telnet to 25 > - my first config > > Paul Cocker wrote: > > > > All my telneting had been by IP address, the name wasn't in DNS yet. > > I've added it, but I get the same problems. As noted in my previous > > post I've now found I can access the port from the postfix machine, > > just not other machines. > > > > Use netstat or lsof to see if postfix is really listening on > the external interfaces.
Netstat reveala Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 *:smtp *:* LISTEN Which I believe indicates it is listening on port 25 for connections from anywhere, yes? > > If postfix doesn't appear to be listening on the external > interfaces, check your master.cf. Some distributions of > postfix change master.cf to force postfix to listen on localhost only. > Look for a line in master.cf beginning like: > 127.0.0.1:smtp inet ... > and remove the "127.0.0.1:" part. > If this fixes the problem, complain to your distributor. > The smtp line look correct: smtp inet n - n - - smtpd > If postfix does appear to be listening on external > interfaces, then you have firewall software on that host > interfering with postfix. > Definitely nothing in between, of that I'm certain. Are there any tools which will give me more information about attempts to connect to a port on a remote host? > -- > Noel Jones > TNT Post is the trading name for TNT Post UK Ltd (company number: 04417047), TNT Post (Doordrop Media) Ltd (00613278), TNT Post Scotland Ltd (05695897), TNT Post North Ltd (05701709), TNT Post South West Ltd (05983401), TNT Post Midlands Limited (6458167)and TNT Post London Limited (6493826). Emma's Diary and Lifecycle are trading names for Lifecycle Marketing (Mother and Baby) Ltd (02556692). All companies are registered in England and Wales; registered address: 1 Globeside Business Park, Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1HY.
