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Old 11-24-2005, 11:46 PM   #1
Registered: Jun 2005
Distribution: Fedora 11
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What is LogWatch ModProbe and...

I always receive automatic mails from localhost to /var/spool/mail/root when I work on the shell.Are these log files?How I read and learn meaningful information about terms like as LogWatch,MIME-encapsuled message and SSH etc. Thank you.
Old 11-25-2005, 12:15 AM   #2
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Logwatch is pretty cool. It's a perl script that reads from config files. These config files tell logwatch what to look for and whatnot. Usually, logwatch is installed in /etc/log.d. Take a look there and you can tune it to your needs.

Old 11-25-2005, 05:28 AM   #3
Registered: Mar 2005
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Distribution: Debian GNU/Linux 5.0 (“Lenny”)
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Re: What is LogWatch ModProbe and...

[QUOTE]Originally posted by backpacker
I always receive automatic mails from localhost to /var/spool/mail/root when I work on the shell.Are these log files?

The logfiles are not the ones in /var/spool/mail/root, this is your standard UNIX mailbox. The messages you receive comes from logwatch, a daemon which watches your logs (logs live in the /var/log directory) and reports any unusual activity there.
There is a specially interesting file: /var/log/messages where all system activity is logged, network, kernel messages... anything (more or less info depending on your settings).


How I read and learn meaningful information about terms like as LogWatch,MIME-encapsuled message and SSH etc.
Nice question. Many people forget that UNIX-alike systems has standard built-in documentation for almost anything.

There are 3 standard information sources in UNIX-alike systems :
  1. The man pages: These are displayed on a console and contains resumed information about program use and options.
  2. The info pages: In a browsable format, has normally more information as the man pages, including tutorials, glossaries and examples
  3. The HOWTOs: Mostly extensive tutorials with lots of information and hands-on examples.


There are two ways of invoking a man page. The traditional way is using the console or xterm:
man programname
man not only includes information about programs, but also about system calls and other stuff.

The more 'modern' way of calling a manpage is using Konqueror and simply typing:
man: programname
in the URL bar.

The Info or texinfo system displays console based browsable documentation (mostly the GNU Toolchain).
info programname
The information is structured in "nodes" (chapters), you can access a node by placing your cursor on it and hitting return. Use N to advance 1 node and U to go back.
An easier way to see info files is through the Konqueror web browser with an IOslave:
This lets you use info files in a normal HTML fashion.

There are two ways of using HOWTOs; you can either install them on your system as a package (every distro has it's own version) stored under /usr/share/doc/HOWTO or you can access them online:

A most valuable source of a large amount of information about just anything on a Linux system is the TLDP: The Linux Documentation Project. Another nice source of information are the manuals every (good) distro includes. So you can find two exceptional manual in SUSE: The administrator and the user handbook, Mandriva also has an extense handbook . Debian based distros such as Debian itself, Ubuntu and Knoppix can use the vast documentation available for Debian, like debhelp ...

And of course; You can ask us ;)


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