Hi,
I am looking for something that will give me notice via email of a down server or other fault such as overload. Can you please recommend something Thanks.
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×This question was answered by @amol:
If you have a separate server to run your check script on, something like this would do a simple Ping test to see if the server is alive:
Cron this script.!/bin/bash
SERVERIP=IP_Address
NOTIFYEMAIL=test@example.comping -c 3 $SERVERIP > /dev/null 2>&1
if [ $? -ne 0 ]
then
# Use your favorite mailer here:
mailx -s “Server $SERVERIP is down” -t “$NOTIFYEMAIL” < /dev/null
fi
First off - thanks for sharing @amol - am curious about this, sooo:
*Question(s) *
Am new to this. Is such a script completely safe? Does one need to harden the server or network in some way when croning something like this?
Can frequent pinging affect server load / bandwidth and thus impact the server’s speed/performance negatively?
Am not a code wiz - just a dude. How often does this script ping? (I know, sry - can’t even deduct from the code - duh!)
Anebody by chance feel like doing DigitalO writeup/setup tut for this using SSH or what the heck it’s called nowadays? Something set-by-step'ish for dummies like me - preferably something with real-life config example values… or perhaps someone can throw a link if similar has already been made available (?)
Don’t hope you mind the q’s/input. Appreciate it! :-)
Question
hmm…not sure a server that is down can send you an email…or do anything for that matter.
however, a server can certainly send you a notification if a service has stopped or crashed (like mysql or apache or such)
You could possibly have a different droplet that checks on other droplets, and then sends you an email. Same idea: you would write a script that pings your other droplet, or attempts to ssh into it, or whatever, and then put that script on a cronjob for every 10 minutes, or hour or whatever.
Do you have server that goes down a lot?
****Hi,
Thank you for your response. I realize that that i would have to use another server to do the checking if the server is down. I was just wondering if DigitalOcean had a ready made script or API to get it done.
If you have a separate server to run your check script on, something like this would do a simple Ping test to see if the server is alive:
Cron this script.
!/bin/bash
SERVERIP=IP_Address
NOTIFYEMAIL=test@example.com
ping -c 3 $SERVERIP > /dev/null 2>&1
if [ $? -ne 0 ]
then
# Use your favorite mailer here:
mailx -s “Server $SERVERIP is down” -t “$NOTIFYEMAIL” < /dev/null
fi