1. As this new monitor.log file will have all time entries and the cron job will execute every 5 sec, I think this will send the old error messages again and again.
2. Also i need to avoid the same erros to be send frequently if it is happening continiously.
Please help me.
Regards,
Arumon
1. the command ">my.log" will clean the log file each time. So you should not get old error messages.
2. [ $n1 -ge 1 ] can be used to adjust with your request, and the cronjob frequency can be adjusted , for example, every 10 minutes.
with above changes, you will check the log every 10 minutes, and if found more than 5 errors, send mail to you. Otherwise, keep quiet.
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Discussion started by: TestKing
5 Replies
LEARN ABOUT CENTOS
ip-monitor
IP-MONITOR(8) Linux IP-MONITOR(8)NAME
ip-monitor, rtmon - state monitoring
SYNOPSIS
ip [ ip-OPTIONS ] monitor [ all | OBJECT-LIST ] [ file FILENAME ]
DESCRIPTION
The ip utility can monitor the state of devices, addresses and routes continuously. This option has a slightly different format. Namely,
the monitor command is the first in the command line and then the object list follows:
ip monitor [ all | OBJECT-LIST ] [ file FILENAME ]
OBJECT-LIST is the list of object types that we want to monitor. It may contain link, address, route, mroute, prefix, neigh and netconf.
If no file argument is given, ip opens RTNETLINK, listens on it and dumps state changes in the format described in previous sections.
If the file option is given, the program does not listen on RTNETLINK, but opens the given file, and dumps its contents. The file should
contain RTNETLINK messages saved in binary format. Such a file can be generated with the rtmon utility. This utility has a command line
syntax similar to ip monitor. Ideally, rtmon should be started before the first network configuration command is issued. F.e. if you
insert:
rtmon file /var/log/rtmon.log
in a startup script, you will be able to view the full history later.
Nevertheless, it is possible to start rtmon at any time. It prepends the history with the state snapshot dumped at the moment of starting.
SEE ALSO ip(8)AUTHOR
Original Manpage by Michail Litvak <mci@owl.openwall.com>
iproute2 13 Dec 2012 IP-MONITOR(8)