added 'DNS availabilty by Zabbix agent'

README.md

@@ -11,6 +11,7 @@ Templates, scripts and hints for Zabbix.
     * [Wireguard](templates/applications/vpn/wireguard/6.0)
 * [Components](templates/components)
   * [certificate](templates/components/certificate/6.0)
+  * [dns availability](templates/components/dns-availability/6.0)
   * [network availability](templates/components/network-availability/6.0)
 * [Sensors](templates/sensors)
   * [ds18b20](templates/sensors/ds18b20/6.0)

templates/components/dns-availability/6.0/README.md

@@ -0,0 +1,99 @@
+
+# DNS availability by Zabbix agent
+
+## Overview
+
+This template is designed for dns availability monitoring by Zabbix agent via host/posh and doesn't require any external scripts.  
+
+## Requirements
+
+- Zabbix version: 6.0 and higher.
+- [`Define user parameters.`](#define-user-parameters)
+
+## Tested versions
+
+This template has been tested on:
+
+- [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/)
+- [Windows 11](https://www.microsoft.com/en-us/windows/windows-11)
+
+### Macros used
+
+|Name|Description|Default|
+|----|-----------|-------|
+|{$REQUEST}|address to check availability|`google.com`|
+|{$RESOLVER1}|dns to check availability|`ns3-l2.nic.ru`|
+|{$RESOLVER2}|dns to check availability|`ns4-l2.nic.ru`|
+|{$RESOLVER3}|dns to check availability|`ns8-l2.nic.ru`|
+|{$RESOLVER4}|dns to check availability|`ns4-cloud.nic.ru`|
+|{$RESOLVER5}|dns to check availability|`ns8-cloud.nic.ru`|
+
+### Items
+
+|Name|Description|Type|Key and additional info|
+|----|-----------|----|-----------------------|
+|DNS request|Address for resolve|Calculated|'dns.request'|
+|DNS resolver 1 address|Resolver address|Calculated|'dns.resolver1.address'|
+|DNS resolver 1 available|Availability of address|Zabbix agent|'dns.resolver1.available[{$REQUEST},{$RESOLVER1}]'|
+|DNS resolver 2 address|Resolver address|Calculated|'dns.resolver2.address'|
+|DNS resolver 2 available|Availability of address|Zabbix agent|'dns.resolver2.available[{$REQUEST},{$RESOLVER2}]'|
+|DNS resolver 3 address|Resolver address|Calculated|'dns.resolver3.address'|
+|DNS resolver 3 available|Availability of address|Zabbix agent|'dns.resolver3.available[{$REQUEST},{$RESOLVER3}]'|
+|DNS resolver 4 address|Resolver address|Calculated|'dns.resolver4.address'|
+|DNS resolver 4 available|Availability of address|Zabbix agent|'dns.resolver4.available[{$REQUEST},{$RESOLVER4}]'|
+|DNS resolver 5 address|Resolver address|Calculated|'dns.resolver5.address'|
+|DNS resolver 5 available|Availability of address|Zabbix agent|'dns.resolver5.available[{$REQUEST},{$RESOLVER5}]'|
+
+### Triggers
+
+|Name|Description|Expression|Severity|Dependencies and additional info|
+|----|-----------|----------|--------|--------------------------------|
+|{ITEM.VALUE1} not resolved by any DNS||length(last(/DNS availability by Zabbix agent/dns.request))>0 and last(/DNS availability by Zabbix agent/dns.resolver1.available[{$REQUEST},{$RESOLVER1}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver2.available[{$REQUEST},{$RESOLVER2}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver3.available[{$REQUEST},{$RESOLVER3}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver4.available[{$REQUEST},{$RESOLVER4}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver5.available[{$REQUEST},{$RESOLVER5}],#1)<>1|High|Manual close: No|
+|{ITEM.VALUE1} not resolved by {ITEM.VALUE2}||length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver1.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver1.available[{$REQUEST},{$RESOLVER1}],#1)<>1|Average|Manual close: No|
+|{ITEM.VALUE1} not resolved by {ITEM.VALUE2}||length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver2.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver2.available[{$REQUEST},{$RESOLVER2}],#1)<>1|Average|Manual close: No|
+|{ITEM.VALUE1} not resolved by {ITEM.VALUE2}||length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver3.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver3.available[{$REQUEST},{$RESOLVER3}],#1)<>1|Average|Manual close: No|
+|{ITEM.VALUE1} not resolved by {ITEM.VALUE2}||length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver4.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver4.available[{$REQUEST},{$RESOLVER4}],#1)<>1|Average|Manual close: No|
+|{ITEM.VALUE1} not resolved by {ITEM.VALUE2}||length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver5.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver5.available[{$REQUEST},{$RESOLVER5}],#1)<>1|Average|Manual close: No|
+
+### Discovery rules
+
+There are no discovery rules in this template.
+
+### Item prototypes for Clients discovery
+
+There are no item prototypes in this template.
+
+### Define user parameters
+
+for Linux:
+
+```bash
+tee -a /etc/zabbix/zabbix_agentd.conf > /dev/null <<'EOF'
+Timeout=30
+UserParameter=dns.resolver1.available[*], host $1 $2 >> /dev/null && echo 1 || echo 0
+UserParameter=dns.resolver2.available[*], host $1 $2 >> /dev/null && echo 1 || echo 0
+UserParameter=dns.resolver3.available[*], host $1 $2 >> /dev/null && echo 1 || echo 0
+UserParameter=dns.resolver4.available[*], host $1 $2 >> /dev/null && echo 1 || echo 0
+UserParameter=dns.resolver5.available[*], host $1 $2 >> /dev/null && echo 1 || echo 0
+EOF
+
+systemctl restart zabbix-agent
+```
+
+for Windows:
+
+```batch
+powershell.exe
+$text = @"
+Timeout=30
+UserParameter=dns.resolver1.available[*], powershell.exe -Command "if (Resolve-DnsName -Name $1 -Type A -Server $2 -ErrorAction SilentlyContinue) {return '1'}; return '0'"
+UserParameter=dns.resolver2.available[*], powershell.exe -Command "if (Resolve-DnsName -Name $1 -Type A -Server $2 -ErrorAction SilentlyContinue) {return '1'}; return '0'"
+UserParameter=dns.resolver3.available[*], powershell.exe -Command "if (Resolve-DnsName -Name $1 -Type A -Server $2 -ErrorAction SilentlyContinue) {return '1'}; return '0'"
+UserParameter=dns.resolver4.available[*], powershell.exe -Command "if (Resolve-DnsName -Name $1 -Type A -Server $2 -ErrorAction SilentlyContinue) {return '1'}; return '0'"
+UserParameter=dns.resolver5.available[*], powershell.exe -Command "if (Resolve-DnsName -Name $1 -Type A -Server $2 -ErrorAction SilentlyContinue) {return '1'}; return '0'"
+"@
+$text | Out-File -Append "$env:ProgramFiles\Zabbix Agent\zabbix_agentd.conf" -Encoding "UTF8"
+exit
+
+sc stop "Zabbix Agent" && sc start "Zabbix Agent"
+```

templates/components/dns-availability/6.0/dns_availability_by_zabbix_agent.yaml

@@ -0,0 +1,265 @@
+zabbix_export:
+  version: '6.0'
+  date: '2024-05-31T00:00:00Z'
+  groups:
+    -
+      uuid: 57b7ae836ca64446ba2c296389c009b7
+      name: Templates/Modules
+  templates:
+    -
+      uuid: dc56a9b915614419a6a0778029bbe4d9
+      template: 'DNS availability by Zabbix agent'
+      name: 'DNS availability by Zabbix agent'
+      groups:
+        -
+          name: Templates/Modules
+      items:
+        -
+          uuid: a1f3e964152d489bae4a5cf68bee8dfa
+          name: 'DNS request'
+          type: CALCULATED
+          key: dns.request
+          trends: '0'
+          value_type: TEXT
+          params: '{$REQUEST}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 3958093ad1954ad58fd83b8a71199dac
+          name: 'DNS resolver 1 address'
+          type: CALCULATED
+          key: dns.resolver1.address
+          trends: '0'
+          value_type: TEXT
+          params: '{$RESOLVER1}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: a241bc10b4794540afccbc744816a145
+          name: 'DNS resolver 1 available'
+          key: 'dns.resolver1.available[{$REQUEST},{$RESOLVER1}]'
+          preprocessing:
+            -
+              type: CHECK_REGEX_ERROR
+              parameters:
+                - 'not found'
+                - '0'
+              error_handler: CUSTOM_VALUE
+              error_handler_params: '0'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 3d21807ac5c1417bb231a57fd10ea7ef
+          name: 'DNS resolver 2 address'
+          type: CALCULATED
+          key: dns.resolver2.address
+          trends: '0'
+          value_type: TEXT
+          params: '{$RESOLVER2}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 69400921e3f54340b60315213e71c63f
+          name: 'DNS resolver 2 available'
+          key: 'dns.resolver2.available[{$REQUEST},{$RESOLVER2}]'
+          preprocessing:
+            -
+              type: CHECK_REGEX_ERROR
+              parameters:
+                - 'not found'
+                - '0'
+              error_handler: CUSTOM_VALUE
+              error_handler_params: '0'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 55db5ac1866a4b7491996b18f8eafbeb
+          name: 'DNS resolver 3 address'
+          type: CALCULATED
+          key: dns.resolver3.address
+          trends: '0'
+          value_type: TEXT
+          params: '{$RESOLVER3}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 4473bbf60fa144c9b06d6efc48569136
+          name: 'DNS resolver 3 available'
+          key: 'dns.resolver3.available[{$REQUEST},{$RESOLVER3}]'
+          preprocessing:
+            -
+              type: CHECK_REGEX_ERROR
+              parameters:
+                - 'not found'
+                - '0'
+              error_handler: CUSTOM_VALUE
+              error_handler_params: '0'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 0530f72294f5483985492d29045062cc
+          name: 'DNS resolver 4 address'
+          type: CALCULATED
+          key: dns.resolver4.address
+          trends: '0'
+          value_type: TEXT
+          params: '{$RESOLVER4}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 5cb0869d357943eb8f68a4162e612c21
+          name: 'DNS resolver 4 available'
+          key: 'dns.resolver4.available[{$REQUEST},{$RESOLVER4}]'
+          preprocessing:
+            -
+              type: CHECK_REGEX_ERROR
+              parameters:
+                - 'not found'
+                - '0'
+              error_handler: CUSTOM_VALUE
+              error_handler_params: '0'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 4efe4f6ca3a04fb79611569e0a5430de
+          name: 'DNS resolver 5 address'
+          type: CALCULATED
+          key: dns.resolver5.address
+          trends: '0'
+          value_type: TEXT
+          params: '{$RESOLVER5}'
+          tags:
+            -
+              tag: component
+              value: dns
+        -
+          uuid: 83cbd80d7969426fa25f77f5a667ecd2
+          name: 'DNS resolver 5 available'
+          key: 'dns.resolver5.available[{$REQUEST},{$RESOLVER5}]'
+          preprocessing:
+            -
+              type: CHECK_REGEX_ERROR
+              parameters:
+                - 'not found'
+                - '0'
+              error_handler: CUSTOM_VALUE
+              error_handler_params: '0'
+          tags:
+            -
+              tag: component
+              value: dns
+      macros:
+        -
+          macro: '{$REQUEST}'
+          value: google.com
+        -
+          macro: '{$RESOLVER1}'
+          value: ns3-l2.nic.ru
+        -
+          macro: '{$RESOLVER2}'
+          value: ns4-l2.nic.ru
+        -
+          macro: '{$RESOLVER3}'
+          value: ns8-l2.nic.ru
+        -
+          macro: '{$RESOLVER4}'
+          value: ns4-cloud.nic.ru
+        -
+          macro: '{$RESOLVER5}'
+          value: ns8-cloud.nic.ru
+  triggers:
+    -
+      uuid: 91bc458eac464bd38709e1de596ea047
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and last(/DNS availability by Zabbix agent/dns.resolver1.available[{$REQUEST},{$RESOLVER1}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver2.available[{$REQUEST},{$RESOLVER2}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver3.available[{$REQUEST},{$RESOLVER3}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver4.available[{$REQUEST},{$RESOLVER4}],#1)<>1 and last(/DNS availability by Zabbix agent/dns.resolver5.available[{$REQUEST},{$RESOLVER5}],#1)<>1'
+      name: '{ITEM.VALUE1} not resolved by any DNS'
+      opdata: '{$REQUEST}, {$RESOLVER1}, {$RESOLVER2}, {$RESOLVER3}, {$RESOLVER4}, {$RESOLVER5}'
+      priority: HIGH
+    -
+      uuid: 372ac457598f46b4944cb26061037b24
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver1.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver1.available[{$REQUEST},{$RESOLVER1}],#1)<>1'
+      name: '{ITEM.VALUE1} not resolved by {ITEM.VALUE2}'
+      opdata: '{$REQUEST}, {$RESOLVER1}'
+      priority: AVERAGE
+    -
+      uuid: 91f4fbb34bc04e9e80e420075d092ab3
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver2.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver2.available[{$REQUEST},{$RESOLVER2}],#1)<>1'
+      name: '{ITEM.VALUE1} not resolved by {ITEM.VALUE2}'
+      opdata: '{$REQUEST}, {$RESOLVER2}'
+      priority: AVERAGE
+    -
+      uuid: 4cffdf0bddb043d89a9ba6cdec815856
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver3.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver3.available[{$REQUEST},{$RESOLVER3}],#1)<>1'
+      name: '{ITEM.VALUE1} not resolved by {ITEM.VALUE2}'
+      opdata: '{$REQUEST}, {$RESOLVER3}'
+      priority: AVERAGE
+    -
+      uuid: 06baf3ea932f472ea9b2f320728cadee
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver4.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver4.available[{$REQUEST},{$RESOLVER4}],#1)<>1'
+      name: '{ITEM.VALUE1} not resolved by {ITEM.VALUE2}'
+      opdata: '{$REQUEST}, {$RESOLVER4}'
+      priority: AVERAGE
+    -
+      uuid: d1dd1aa7f9e1428c801160b1997b70e5
+      expression: 'length(last(/DNS availability by Zabbix agent/dns.request))>0 and length(last(/DNS availability by Zabbix agent/dns.resolver5.address))>0 and last(/DNS availability by Zabbix agent/dns.resolver5.available[{$REQUEST},{$RESOLVER5}],#1)<>1'
+      name: '{ITEM.VALUE2} not resolved by {ITEM.VALUE1}'
+      opdata: '{$REQUEST}, {$RESOLVER5}'
+      priority: AVERAGE
+  graphs:
+    -
+      uuid: f455326ebf3a4aaabe7395665f965840
+      name: 'DNS resolvers availability'
+      show_triggers: 'NO'
+      ymin_type_1: FIXED
+      graph_items:
+        -
+          drawtype: GRADIENT_LINE
+          color: FF0000
+          item:
+            host: 'DNS availability by Zabbix agent'
+            key: 'dns.resolver1.available[{$REQUEST},{$RESOLVER1}]'
+        -
+          sortorder: '1'
+          drawtype: GRADIENT_LINE
+          color: FFFF00
+          item:
+            host: 'DNS availability by Zabbix agent'
+            key: 'dns.resolver2.available[{$REQUEST},{$RESOLVER2}]'
+        -
+          sortorder: '2'
+          drawtype: GRADIENT_LINE
+          color: 00FF00
+          item:
+            host: 'DNS availability by Zabbix agent'
+            key: 'dns.resolver3.available[{$REQUEST},{$RESOLVER3}]'
+        -
+          sortorder: '3'
+          drawtype: GRADIENT_LINE
+          color: 0080FF
+          item:
+            host: 'DNS availability by Zabbix agent'
+            key: 'dns.resolver4.available[{$REQUEST},{$RESOLVER4}]'
+        -
+          sortorder: '4'
+          drawtype: GRADIENT_LINE
+          color: BF00FF
+          item:
+            host: 'DNS availability by Zabbix agent'
+            key: 'dns.resolver5.available[{$REQUEST},{$RESOLVER5}]'

templates/components/network-availability/6.0/README.md

@@ -3,7 +3,7 @@
 
 ## Overview
 
-This template is designed for network availability monitoring by Zabbix via ping and doesn't require any external scripts.  
+This template is designed for network availability monitoring by Zabbix agent via ping and doesn't require any external scripts.  
 
 ## Requirements
 

templates/components/network-availability/6.0/network_availability_by_zabbix_agent.yaml

@@ -76,7 +76,7 @@ zabbix_export:
   graphs:
     -
       uuid: 2a984d60fe25442687af8a0e6973eeac
-      name: 'Network addresses available'
+      name: 'Network addresses availability'
       show_triggers: 'NO'
       ymin_type_1: FIXED
       graph_items: