Linux - SoftwareThis forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I configured sendmail on RH 9 to act as a mail relay.
sendmail acceptes connections in port 25 and says something like " mail accepted for delivery" whan I telnet on port 25 but the mail doesnt get in to my internal mail server ( from the DMZ to my intermal net ).
What exactly does it say? When you connect on port 25 it should come up with something like:
220 homer.jtshaw.com ESMTP
Also, please be VERY careful setting up mail relays. Make sure that the only place it will route mail is to your internal server. Last thing we need is yet another open relay for spammers to abuse out there.