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Merge pull request #2057 from pi-hole/fix/debug-empty-ports

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debug script: fix empty ports on some systems
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Mark Drobnak 2018-05-30 21:48:53 -04:00 committed by GitHub
commit 9fd70cbdf9
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1 changed files with 12 additions and 5 deletions
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17
advanced/Scripts/piholeDebug.sh
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@ -659,15 +659,22 @@ check_required_ports() {
# Sort the addresses and remove duplicates
while IFS= read -r line; do
ports_in_use+=( "$line" )
done < <( lsof -i -P -n | awk -F' ' '/LISTEN/ {print $9, $1}' | sort -n | uniq | cut -d':' -f2 )
done < <( lsof -iTCP -sTCP:LISTEN -P -n +c 10 )
# Now that we have the values stored,
for i in "${!ports_in_use[@]}"; do
# loop through them and assign some local variables
local port_number
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $1}')"
local service_name
service_name=$(echo "${ports_in_use[$i]}" | awk '{print $2}')
service_name=$(echo "${ports_in_use[$i]}" | awk '{print $1}')
local protocol_type
protocol_type=$(echo "${ports_in_use[$i]}" | awk '{print $5}')
local port_number
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $9}')"
# Skip the line if it's the titles of the columns the lsof command produces
if [[ "${service_name}" == COMMAND ]]; then
continue
fi
# Use a case statement to determine if the right services are using the right ports
case "${port_number}" in
53) compare_port_to_service_assigned "${resolver}"
@ -677,7 +684,7 @@ check_required_ports() {
4711) compare_port_to_service_assigned "${ftl}"
;;
# If it's not a default port that Pi-hole needs, just print it out for the user to see
*) log_write "[${port_number}] is in use by ${service_name}";
*) log_write "${port_number} ${service_name} (${protocol_type})";
esac
done
}