Have Your Workstation Notify You of Problems
Novell Cool Solutions: Tip
By Randall R. Saeks
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Posted: 7 Dec 2005 |
PROBLEM: Having workstations notify someone when they have problems.
SOLUTION: Run a script on a periodic basis to check the system log for problems and if a condition is met, send an email. This could be in an hourly cronjob, for example.
EXAMPLE: Here is the script:
#!/bin/sh #-= Varibles for auto-notify =- # Name of the machine hostname=`hostname -s` #Search for things in the last hour. hr_lookup=`date +%h" "%d" "%H:` # -= Data for auto-notify =- # Give the IP and network info of the client network_info=`ifconfig -L en0 | grep broadcast` # Display the last 5 users. (Optional) # change PATH to location of user logins, if #desired last_usr=`tail -n5 PATH` #Location of system log, and pull last 1000 lines. #Search for things in the last hour with the " | #grep $hr_lookup" command. Remove to look in the #last 1000 lines, regardless of time. #Also, change CONDITION to text that appears in #log for the event you want to be notified of, #quoted if a longer item. #EX: crashdump will show all lines with crashdump #in them. Likewise, "Search Connection Failure" #will show all lines with that string. sys_log=`tail -n1000 /var/log/system.log | grep "$hr_lookup" | grep CONDITION` # -= Begin Script =- # If something was found in the log, then prepare #to send an email. Varibles behave as above. if tail -n1000 /var/log/system.log | grep "$hr_lookup" | grep CONDITION then # change EMAIL to email address /usr/sbin/sendmail EMAIL <<EOF # Change LOCALID to what you want the sender to #be. can be helpful for email filtering. From: LOCALID #Change TOEMAIL to who is the email to To: TOEMAIL # SUBJECT = Subject of the email Subject: SUBJECT #This is the body of the email. Change with what you want to display. ------------------- |Machine name:| ------------------- $hostname ----------------- |Last 5 Users:| ----------------- $last_usr ----------------- |Network info:| ----------------- $network_info ---------------- |System Log:| ---------------- $sys_log EOF fi #Make sure to remove comments (lines beginning with '#') between the two EOF's, otherwise, those will be in the body of the email.
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