29 lines
446 B
Bash
Executable file
29 lines
446 B
Bash
Executable file
#!/bin/sh
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usage() {
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cat <<EOF
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Usage: $0 regexp
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This litle Nagios script check if a line (using regexp) in iptable is set.
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If not it will return CRITICAL.
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EOF
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}
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if [ -z "$1" ]; then
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usage
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exit 2
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fi
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cmd=$(iptables -L | grep -q -E $1)
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status=$?
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if [ $status -eq 0 ]; then
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echo "OK. The rule is present."
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exit 0
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fi
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if [ $status -eq 1 ]; then
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echo "Rule not found!"
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exit 2
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else
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echo "Unhandled error."
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exit 2
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fi |