dns-ms-check.sh

#!/usr/bin/bash

dns_server="@IP DNS SERVER 1@"
while [ -n "$dns_server" ]; do
        ping -q -c 1 $dns_server | while read pong; do echo "$(TZ='Europe/Moscow' date): $pong" » ./ck_dns_test.out; done
        host -t A @DNS MANE OF YOUR HOST@ $dns_server | while read myhost; do echo "$(TZ='Europe/Moscow' date): $myhost" » ./ck_dns_test.out; echo $myhost; done
        echo '' » ./ck_dns_test.out
        case "$dns_server" in
                @IP DNS SERVER 1@)
                        dns_server="@IP DNS SERVER 2@"
                        ;;
                @IP DNS SERVER 2@)
                        sleep 60
                        echo "$(TZ='Europe/Moscow' date)"
                        ;;
        esac
done