138 lines
3.2 KiB
Bash
138 lines
3.2 KiB
Bash
#!/bin/bash
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# Josh's Automatic System Monitor
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# Written by Josh Mudge
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# Ad Mejorem Dei Glorium
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DSSSOURCE=https://git.coolaj86.com/josh/proxmox-scripts/raw/branch/main/dss/
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update=1
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version=v1.5.3a
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alpha=0
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dfh=$(df -h | grep '8[0-9]%')
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dfh2=$(df -h | grep '9[0-9]%')
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while [[ $# -gt 0 ]]
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do
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key="$1"
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case $key in
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--setup)
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shift # past argument
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setup=1
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;;
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--no-update)
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update=0
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shift # past argument
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;;
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--audit)
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audit=1
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shift # past argument
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;;
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--email)
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email="$2"
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shift # past argument
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;;
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-h|help)
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echo "dss-mon $version"
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echo "Usage: dss --monitor --email user@mailprovider.com"
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exit 1
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;;
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-v|version)
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echo "dss $version"
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exit 1
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;;
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*)
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# unknown option
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if test -z "${unknown}"
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then
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unknown=$1
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else
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echo "dss-mon $version"
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echo "Usage: dss --monitor --email user@mailprovider.com"
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exit 1
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fi
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;;
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esac
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shift # past argument or value
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done
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if test $update = 1
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then
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sudo apt-get update
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sudo apt-get upgrade
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sudo apt-get install sysstat # Check if installed, then do this
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curl -s "$DSSSOURCE/setup.sh" | bash
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fi
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# Cleanup
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sudo apt-get clean
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# Security Audit (Tackled by dss init before setting this up.)
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# if test ! -f /home/.dssv1.7
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# then
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#
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# dss init
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#
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# fi
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auth=$(sudo cat /var/log/auth.log | grep "Invalid user")
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#auth2=$(sudo cat /var/log/auth.log | grep "Connection closed")
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if test $alpha = 1;
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then
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sudo apt-get autoremove
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fi
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# To setup email, point a domain name to your server using DNS.
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# Disable any firewall rules that block port 25 (You may have to go to a server admin panel or contact your system administrator)
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# Then run: sudo apt-get install mailutils
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# Open up /etc/hosts and make sure it has:
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# 127.0.1.1 mydomain.com myserverHOSTNAME
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# Select "Internet Site" and enter the domain you want it to send email from.
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# Then you can send email like this: echo "Body of email" | mail -s "subject" EMAILADDRESS
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if test ! -z "$auth" # If set to run automatically, don't run this check every time.
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then
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echo "Attacks found. Sending authentication log to $email"
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sudo cat /var/log/auth.log | grep "Invalid user" | mail -s "Invalid User Login" $email
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fi
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if test ! -z "$dfh"
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then
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echo "Disk usage is high, sending disk usage to $email"
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echo "$dfh" | mail -s "High Disk Usage" $email
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fi
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if test ! -z "$dfh2"
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then
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echo "Disk usage is critical, sending disk usage to $email"
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echo "$dfh2" | mail -s "Critical Disk Usage" $email
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fi
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for i in {1..300} # Do this 300 times.
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do
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CPU=$(mpstat 1 1 | awk '$3 ~ /CPU/ { for(i=1;i<=NF;i++) { if ($i ~ /%idle/) field=i } } $3 ~ /all/ { printf("%d",100 - $field) }') # Find CPU usage for the last 10 seconds. Code credit: Stackoverflow
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CPUT=$(($CPUT + $CPU)) # Add each 1 second record to the total.
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done
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CPURESULT=$(($CPUT / 300)) # Divide the total by 300 seconds to find average CPU usage over the last 5 minutes.
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if test $CPURESULT > 90
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then
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echo "CPU usage is quite high, sending report to $email"
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echo "$CPURESULT %" | mail -s "High CPU Usage" $email
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fi
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USEDRAM=$(free | grep Mem | awk '{print ($2 -$7) / $2 * 100.0}')
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if test $USEDRAM > 80
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then
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echo "RAM usage is quite high, sending report to $email"
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echo "$USEDRAM %" | mail -s "High RAM Usage" $email
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fi
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