Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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'm trying to send e-mail from my machine to my internet mail address (using a php script or just in pine). I was getting this error message:
----- The following addresses had permanent fatal errors -----
(reason: 553 5.1.8 <email@example.com>... Domain of sender address firstname.lastname@example.org does
..because uranium.hero.com is not a real name in anyone's DNS - it's just what I call my computer.
So I tried setting up a masquerade through webmin to "hero.com" which is an actual machine name (and also where my internet mail account resides), but now I'm not getting any sort of bounce back and no mail in my internet account, however, my mail log now shows this:
Feb 8 00:59:03 uranium sendmail: k188x2Aq031497: from=apache, size=1226, class=0, nrcpts=1, msgid=< TheSystem@my_ip_address>, relay=apache@localhost
Feb 8 00:59:03 uranium sendmail: k188x3BQ031499: from=<email@example.com>, size=1339, class=0, nrcpts=1, msgid=< TheSystem@my_ip_address>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Feb 8 00:59:03 uranium sendmail: k188x2Aq031497: firstname.lastname@example.org, ctladdr=apache (48/48), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30372, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (k188x3BQ031499 Message accepted for delivery)
Feb 8 00:59:03 uranium sendmail: k188x3BQ031499: to=<email@example.com>, ctladdr=<firstname.lastname@example.org> (48/48), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=30485, relay=hero.com. [22.214.171.124], dsn=5.6.0, stat=Data format error
Feb 8 00:59:03 uranium sendmail: k188x3BQ031499: k188x3BQ031501: DSN: Data format error
Feb 8 00:59:03 uranium sendmail: k188x3BQ031501: to=root, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=32363, dsn=2.0.0, stat=Sent
My host (hero.com) does not allow other people to use its SMTP server, so I can't relay through it. Is there a moderately easy solution for an e-mail neophyte like myself?
FYI: I just chose "uranium.hero.com" as a FQDN - my machine and hero.com are not related in any way.
If you have an external email address then you can set this
up as a relay address. Also masquerade all external email
as coming from this address. Disable DNS lookup since many
email servers don't reply to this request.