Alexander Dalloz wrote: > John Hinton schrieb: > >>> On Wed, 2006-09-20 at 05:12, abhishek singh wrote: >>> >>> >>>> yes i am using SMTP Authentication , but when i m >>>> doing telnet to my server on 25 port so i am able to >>>> send mail by unknow user that in in not my mail server >>>> like >>> >>> [ snip ] >> >> Do you have telnet open to the outside world? If so kill it and only >> allow ssh with the proper extra security setup. You may need to open >> telnet for a little while for testing purposes, but don't leave it >> that way. > > What has using the telnet client for testing a daemon on a tcp port to > do with running a telnet daemon? > Answer: nothing. > >> John Hinton > > Alexander > My bad. I didn't know you could do that! I had always started the telnet service before even trying! John Hinton