In this case the telnet being used is the telnet client not server doh
And they are using it to simulate an smtp connection to port 25 on the server. Standard telnet runs on port 23 but u can use telnet (client) to connect to any other port for troubleshooting purposes. On 10/27/06, henry <[EMAIL PROTECTED]> wrote:
telnet being an insecure utility is disabled on routers/gateway by many admins perhaps that is the case for them too ----- Original Message ----- From: Mike Barnard To: Linux Users Group Uganda Sent: Friday, October 27, 2006 6:53 AM Subject: Re: [LUG] mailserver problem you are not giving all the necessary information that is required. you have been asked to provide certain information, please avail it 1. what MTA are you running? 2. telnet 'public IP address' 25 3. telnet localhost 25 4. what do the logs on the mail server say 5. your NAT configuration you seem to have valid DNS records ;; ANSWER SECTION: mednet.co.ug. 1d8h IN MX 10 mednet.co.ug. apart from that, i cannot connect to you from the outside world. i telnet fine, but get kicked out almost immediately and when it holds i get 'connection timed out' mail# telnet 196.0.14.54 25 Trying 196.0.14.54... Connected to mednet.co.ug. Escape character is '^]'. helo mail.one2net.co.ug Connection closed by foreign host. mail# telnet 196.0.14.54 25 Trying 196.0.14.54... Connected to mednet.co.ug. Escape character is '^]'. Connection closed by foreign host. mail# telnet mednet.co.ug 25 Trying 196.0.14.54... Connected to mednet.co.ug . Escape character is '^]'. Connection closed by foreign host. mail# telnet mednet.co.ug 25 Trying 196.0.14.54... Connected to mednet.co.ug . Escape character is '^]'. helo mail.one2net.co.ug Connection closed by foreign host. either your NAT is not working as it should, or your mail server does not accept connections from the outside world. sift your log files for the errors that it records, those will help you. and of course, give the information that is requested, right now we are trying to solve something that we have no clue about.... Mike ________________________________ _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. --------------------------------------- _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. ---------------------------------------
-- AC KISSA B.Sc Info Tech RHCE (804005213917312) | LPIC-1 | LPIC-2 (LPI000074540) To follow the path, look to the master, follow the master, walk with the master, see through the master, become the master. (zen) _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. ---------------------------------------
