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"echoing" the monitor display to file

Posted on 2002-07-02
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Last Modified: 2013-11-18
HI
I have a remote server and have found on numerous occasions when visiting the server room, that there are plenty of system generated messages on the monitor, some of them critical warnings which I would like to be able to see even when not physically at the server room, ir, when logged in remotely, I want to be able to access those messages.
Are those messages logged somewhere?
Before you flame me for a stupid question, I have looked at /var/log/messages, but it is empty always, so part of this question is ; which process is responsible for filling those logs? syslogd? --> I always have a syslogd process runnning on my system, can I try to restart it? Where do I tell it where to log to?
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Question by:psimation
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Gns earned 50 total points
ID: 7126408
Presuming that you are not running a windowing system on the console, the messages are logged to the console via the syslog facility, and thus visible there. To confuse matters some, kernel related issues get logged by the klogd facility.

Read the man pages for syslogd, syslog.conf and klogd:
man syslog.conf syslogd klogd
Then, if you feel the need for it, you may make an educated change to /etc/syslog.conf.

To avoid filling the /var filesystem with more or less stale logfiles, these are usually "rotated" by some facility such as logrotate, that will copy messages.3 to messages.4, messages.2 to messages.3 etc, removing the "last" logfile, and creating a new (empty) "first" logfile. the behaviour is highly configurable though, check the manpage.
On a system with some uptime, this leads to "lowtraffic logfiles" apearing to be continually empty.

There are several programs that will let you "steal" the console, xconsole is one, and display the results in a window. This window can either be displayed on a remote X server, or you might try vnc (a little like pcANYWHERE), and run the xconsole in that.

-- Glenn
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by:psimation
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thanks, will give it a try
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