Add sysmon to Proxmox scripts, added CPU temp monitoring, and fixed some of the shell logic, plus made the server hostname a part of the email.

Proxmox/sysmon.sh

@@ -0,0 +1,144 @@
+#!/bin/bash
+# Josh's Automatic System Monitor
+# Written by Josh Mudge
+# Ad Mejorem Dei Glorium
+
+DSSSOURCE=https://git.coolaj86.com/josh/proxmox-scripts/raw/branch/main/dss/
+update=1
+version=v1.6.0a
+alpha=0
+dfh=$(df -h | grep '8[0-9]%')
+dfh2=$(df -h | grep '9[0-9]%')
+# This requires sensors, grep, awk, sed, sort, and tail to be installed.
+temp=$(sensors | grep Core | awk '{print $3}' | sed 's/+//g' | sed 's/°C//g' | sort -n | tail -n 1 | sed 's/[^0123456789].*//')
+
+while [[ $# -gt 0 ]]
+do
+  key="$1"
+
+  case $key in
+    --setup)
+    shift # past argument
+    setup=1
+    ;;
+    --no-update)
+    update=0
+    shift # past argument
+    ;;
+    --audit)
+    audit=1
+    shift # past argument
+    ;;
+    --email)
+    email="$2"
+    shift # past argument
+    ;;
+    -h|help)
+    echo "dss-mon $version"
+    echo "Usage: dss --monitor --email user@mailprovider.com"
+    exit 1
+    ;;
+    -v|version)
+    echo "dss $version"
+    exit 1
+    ;;
+    *)
+    # unknown option
+    if test -z "${unknown}"
+    then
+      unknown=$1
+    else
+      echo "dss-mon $version"
+      echo "Usage: dss --monitor --email user@mailprovider.com"
+      exit 1
+    fi
+    ;;
+  esac
+  shift # past argument or value
+done
+
+if test $update = 1
+then
+
+  sudo apt-get update
+  sudo apt-get upgrade
+  sudo apt-get install sysstat # Check if installed, then do this
+  curl -s "$DSSSOURCE/setup.sh" | bash
+
+fi
+
+# Cleanup
+
+sudo apt-get clean
+
+# Security Audit (Tackled by dss init before setting this up.)
+
+# if test ! -f /home/.dssv1.7
+# then
+#
+#   dss init
+#
+# fi
+
+auth=$(sudo cat /var/log/auth.log | grep "Invalid user")
+#auth2=$(sudo cat /var/log/auth.log | grep "Connection closed")
+
+if test $alpha = 1;
+then
+
+  sudo apt-get autoremove
+
+fi
+
+# To setup email, point a domain name to your server using DNS.
+# Disable any firewall rules that block port 25 (You may have to go to a server admin panel or contact your system administrator)
+# Then run: sudo apt-get install mailutils
+# Open up /etc/hosts and make sure it has:
+# 127.0.1.1 mydomain.com myserverHOSTNAME
+# Select "Internet Site" and enter the domain you want it to send email from.
+# Then you can send email like this: echo "Body of email" | mail -s "subject" EMAILADDRESS
+
+if test ! -z "$auth" # If set to run automatically, don't run this check every time.
+then
+  echo "Attacks found. Sending authentication log to $email"
+  sudo cat /var/log/auth.log | grep "Invalid user" | mail -s "Invalid User Login on $(hostname)" $email
+fi
+
+if test ! -z "$dfh"
+then
+  echo "Disk usage is high, sending disk usage to $email"
+  echo "$dfh" | mail -s "High Disk Usage on $(hostname)" $email
+fi
+
+if test ! -z "$dfh2"
+then
+  echo "Disk usage is critical, sending disk usage to $email"
+  echo "$dfh2" | mail -s "Critical Disk Usage on $(hostname)" $email
+fi
+
+for i in {1..300} # Do this 300 times.
+do
+CPU=$(mpstat 1 1 | awk '$3 ~ /CPU/ { for(i=1;i<=NF;i++) { if ($i ~ /%idle/) field=i } } $3 ~ /all/ { printf("%d",100 - $field) }') # Find CPU usage for the last 10 seconds. Code credit: Stackoverflow
+CPUT=$(($CPUT + $CPU)) # Add each 1 second record to the total.
+done
+CPURESULT=$(($CPUT / 300)) # Divide the total by 300 seconds to find average CPU usage over the last 5 minutes.
+
+
+if test $CPURESULT -gt 90
+then
+  echo "CPU usage is quite high, sending report to $email"
+  echo "$CPURESULT %" | mail -s "High CPU Usage on $(hostname)" $email
+fi
+
+USEDRAM=$(free | grep Mem | awk '{print ($2 -$7) / $2 * 100.0}')
+
+if test $USEDRAM -gt 80
+then
+  echo "RAM usage is quite high, sending report to $email"
+  echo "$USEDRAM %" | mail -s "High RAM Usage on $(hostname)" $email
+fi
+
+if test $temp -gt 80
+then
+    echo "CPU temp is over 80C, sending report to $email"
+    echo "$temp" | mail -s "High CPU Temperature on $(hostname)" $email