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Mikrotik scheduler script to check AdGuardHome availability, by resolving to AGH server then change DNS if AGH is not resolving
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| :local curDNS [/ip dns get server] | |
| :local gwDNS "192.168.2.1" | |
| :local aghDNS "192.168.2.230" | |
| :local oriDNS "8.8.8.8,8.8.4.4" | |
| :local testDomain "www.google.com" | |
| :local isDown "no" | |
| :if ($curDNS = $aghDNS) do={ | |
| :do { | |
| :resolve $testDomain server=$aghDNS | |
| } on-error={ | |
| :set isDown "yes" | |
| :log warning "AGH is seems down, checking number 1" | |
| :delay 1 | |
| } | |
| :for i from=2 to=7 do={ | |
| :if ($isDown = "yes") do={ | |
| :do { | |
| :resolve $testDomain server=$aghDNS | |
| } on-error={ | |
| :log warning "AGH is seems down, checking number $i" | |
| :delay 1 | |
| } | |
| } | |
| } | |
| :if ($isDown = "yes") do={ | |
| :log warning "AdGuardHome Offline" | |
| /ip dns set servers=$oriDNS | |
| /ip dhcp-server network set [find] dns-server=$gwDNS | |
| } | |
| } else={ | |
| :do { | |
| :resolve $testDomain server=$aghDNS | |
| :log warning "AdGuardHome Online" | |
| /ip dns set servers=$aghDNS | |
| /ip dhcp-server network set [find] dns-server=$aghDNS | |
| } on-error={} | |
| } | |
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work fine. thanks