June 2000
Intermediate to advanced
512 pages
15h 18m
English
Content preview from Linux Network Administrator's Guide, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
If Your Mail Doesn’t Get Through
A number of features are available for troubleshooting installation problems.
The first place to check is Exim’s log files. On Linux systems they are
normally kept in /var/log/exim/log and are named
exim_mainlog, exim_rejectlog, and
exim_paniclog. On other operating systems, they are
often kept in /var/spool/exim/log. You can find out
where the log files are by running the command:
exim -bP log_file_path
The main log lists all transactions, the reject log contains details of messages that were rejected for policy reasons, and the panic log is for messages related to configuration errors and the like.
Typical entries in the main log are shown below. Each entry in the log itself is a single line of text, starting with a date and time. They have been split into several lines here in order to fit them on the page:
2000-01-30 15:46:37 12EwYe-0004WO-00 <= jack@vstout.vbrew.com H=vstout.vbrew.com [192.168.131.111] U=exim P=esmtp S=32100 id=38690D72.286F@vstout.vbrew.com 2000-01-30 15:46:37 12EwYe-0004WO-00 => jill <jill@vbrew.com> D=localuser T=local_delivery 2000-01-30 15:46:37 12EwYe-0004WO-00 Completed
These entries show that a message from
jack@vstout.vbrew.com
to jill@vbrew.com was
successfully delivered to a mailbox on the local host. Message arrivals
are flagged with <=, and deliveries with
=>.
There are two kinds of delivery errors: permanent and temporary. A permanent
delivery error is recorded in a log entry like this, flagged with
"**“:
2000-01-30 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.