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@@ -18,13 +18,13 @@ if [ $# -ne 3 ]; then
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fi
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SerialMaster=$(/usr/bin/dig @${1} ${3} +short SOA | awk '{print $3}')
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-if [ $? -ne 0 ]; then
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+if [ $? -ne 0 ] || [ -z "$SerialMaster" ]; 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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+if [ $? -ne 0 ] || [ -z "$SerialSlave" ]; 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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@@ -38,4 +38,4 @@ else
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fi
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echo $Status
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-exit $STATE
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+exit $STATE
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