42 lines
915 B
Bash
42 lines
915 B
Bash
#!/bin/bash
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# Return Codes:
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# 0 - Ok! - Up
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# 1 - Warning - Flaky
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# 2 - Critical - Down
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# 3 - Unknown - Ummm... What happened?!
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STATE=3
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print_usage() {
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echo "Usage: check_twodns.sh [Master DNS] [Slave DNS] [Zone]"
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}
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#Parameter prüfen
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if [ $# -ne 3 ]; then
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print_usage
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exit $STATE
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fi
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SerialMaster=$(/usr/bin/dig @${1} ${3} +short SOA | awk '{print $3}')
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if [ $? -ne 0 ]; then
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echo "Error reading Serial from Master for Domain \"${3}\""
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exit 3
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fi
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SerialSlave=$(/usr/bin/dig @${2} ${3} +short SOA | awk '{print $3}')
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if [ $? -ne 0 ]; then
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echo "Error reading Serial from Slave for Domain \"${3}\""
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exit 3
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fi
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if [ "$SerialMaster" -eq "$SerialSlave" ]; then
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Status="Serial for \"${3}\" is identical on both DNS-Servers: ${SerialMaster}"
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STATE=0
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else
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echo "Serial for \"${3}\" is different. Master: ${SerialMaster}, Slave: ${SerialSlave}"
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STATE=2
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fi
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echo $Status
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exit $STATE
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