December 2002
Intermediate to advanced
1232 pages
56h 38m
English
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Chapter 14. Signals, Transactions, and Syslog
The sendmail program can keep the system administrator up to date about many aspects of mail delivery and forwarding. It does this by logging its activities using the syslog(3) facility. Information about things such as total message volume and site connectivity can help the administrator make sendmail more efficient. Information about the SMTP dialog that was used to send the message can help the administrator solve delivery problems.
In this chapter we cover three important aspects of
sendmail. First, we explain how signals interact
with sendmail and show how signals can be used
to cause sendmail to log additional information.
Second, we show how to use the -X command-line
switch to cause sendmail to record its SMTP
transactions. Finally, we explain the use of the
syslog(3) facility, illustrate several ways to
tune its output, and describe the meaning of that output.
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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.
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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.