WatchGuard Monitoring

The following script is used to monitor the basic functions of the WatchGuard firewall via snmpwalk scripts and are processed to provide easy-to-read data. It can be run separately or integrated into Icinga2 as a monitoring plugin.

Bash Checked Device Release

Dev MIT License

Check WatchGuard

The following script is used to monitor the basic functions of the WatchGuard firewall via snmpwalk scripts and are processed to provide easy-to-read data. It can be run separately or integrated into Icinga2 as a monitoring plugin.

Important: snmpwalk command is required for script to run correctly

Update Note

1.3 - Code improvements

+Improved the code
+Add check host alive before snmp
+Merge InfoIps, InfoGav and IpsecTunnelNum to one check

1.2 - Fix

+Fix Warning and Critical state
+Add ability to set limits for waring and critical on percentage
+Add ability to set maximum Active Connections for ActiveConns
+Set default variable warning(80)
+Set default variable critical(90)
+Set default variable maximum active connections(3300000)

1.1 - Code improvements

+Improved the code
+Add Check Memory
+Add Check Info Ips Service
+Removed unnecessary code

1.0 - Release

+Release Script

Installation

  1. Download the script and give it privilages for run

    curl -LJO https://raw.githubusercontent.com/Kalarumeth/Check-WatchGuard/main/check_watchguard.sh
  2. Move to Icinga Plugin Dir

    Default location: /usr/lib/nagios/plugins
  3. Add command to Icinga

    object CheckCommand "check_watchguard" {
    import "plugin-check-command"
    command = [ PluginDir + "/check_watchguard.sh" ]
    arguments += {
        "-ac" = {
            order = 4
            value = "$watchguard_ac$"
        }
        "-c" = {
            order = 0
            required = true
            value = "$snmp_community$"
        }
        "-cr" = {
            order = 3
            value = "$crit$"
        }
        "-h" = {
            order = 1
            required = true
            value = "$address$"
        }
        "-t" = {
            order = 5
            required = true
            value = "$watchguard_type$"
        }
        "-wa" = {
            order = 2
            value = "$warn$"
        }
    }
    vars.snmp_community = "public"
    }

Functions

The Script is designed to monitor the following firewall functions:

  • [ac] ActiveConns: Active connections in use and total number of active connections;

    OK! Active Connections used: 0.16%
    Current Active Connections: 5.412 of 3.300.000
  • [cpu] Cpu: Cpu load;

    OK! CPU used: 2%
  • [data] Transfer: Information of file size send and recive.

    Send 1479 GB / Recive 1982 GB
    WatchGuard transfer info:
    Total Data Send:        1479 GB 1855886728 Pkg
    Total Data Recive:      1982 GB 2466423320 Pkg
  • [info] Info: Information of Active VPN, Intrusion Prevention Service and Gateway Antivirus Service

    VPN active:     7
    Gateway Antivirus Service: gav_version:2022020
    Last Update: Fri, Feb 04 2022 11:54:03 AM
    Intrusion Prevention Service: ips_version:18.196
    Last Update: Thu, Feb 03 2022 06:53:47 PM
  • [ram] Memory: Ram load;

    OK! RAM used: 2,67 / 3,77 GB (71,00 %)
    RAM free: 1,10 GB (29,13 %)

How it work

Method to compose the execution string:

./check_watchguard.sh -c  -h  [-wa  -cr  -ac ] -t 

OPTIONS:

-c  --community     SNMP v2 community string with Read access.
                     Default is: public.
-h  --host          [REQUIRED OPTION] Host name or IP address to check.
                     Default is: localhost.
-wa --allert-wa     Defines the threshold for Warning.
                     Default is: 80.
-cr --allert-cr     Defines the threshold for Critical.
                     Default is: 90.
-ac --activeconns   Defines the threshold for Max ActiveConnection.
                     Default is: 3300000
-t  --type          [REQUIRED OPTION] Field for select element to check on WatchGuard Device.
                     { ac | cpu | data | info | ram }.
-H  --help          Show script help.
-V  --version       Show script version.

Credits

Author

Kalarumeth - https://github.com/Kalarumeth

GitHub Supporters

kelups

License

MIT License - Copyright 2022 Kalarumeth