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80,443,5000,5222,5223,5224,5228,5229,8080,12121

Code: Select all

#!/bin/bash

# 0 check TCP, 1 check UDP
NOUDP=0
# first port to check, min 1
START="480"
# last port to check, max 65535
END="65535"
# server used for checking open ports
TARGET="portquiz.net"
# TARGET="35.180.139.74"
#internal
FIRSTFOUND=0
FOUNDPORTS="Open ports:"
SPINNER=("|" "/" "-" "\\")

echo "Warning: the total runtime for a full port scan is 18 hours, 12 minutes, and 14 seconds."
echo "Checking ports $START-$END for accessibility using $TARGET:"

printresults() {
    echo "Checked ports: $START-$PORT"
    if [ "$FIRSTFOUND" -eq 0 ]; then
       echo "$FOUNDPORTS none"
    else
       echo "$FOUNDPORTS"
    fi
}

interrupt() {
    echo ""
    echo "Scan interrupted."
    printresults
    kill "$CHILD_PID" >/dev/null 2>&1
    exit 1
}

# Ctrl+C
trap 'interrupt' SIGINT SIGTERM SIGHUP

PORT=$START
while [ "$PORT" -le "$END" ]; do
# for PORT in $(eval echo "{$START..$END}"); do
    echo -n -e "${SPINNER[$i]} $PORT\r"
    i=$(( (i+1) % ${#SPINNER[@]} ))

    if [ "$NOUDP" -eq 0 ]; then
        PARAMS="-z -G 1"
    else
        PARAMS="-u -z"
    fi

    nc=$(nc $PARAMS "$TARGET" "$PORT" 2>&1)

    # test if host name can be resolved first as nc requires that
    HOSTERRORMESSAGE=$(host -W 1 "$TARGET" 2>&1)
    if [ $? -ne 0 ]; then
        echo "ERROR: $TARGET $HOSTERRORMESSAGE."
    	printresults
    	echo "Scan interrupted. Check your internet connection and try again."
        exit 1
    fi

    if [[ -n "$nc" ]]; then
        if [ "$FIRSTFOUND" -eq 0 ]; then
            FOUNDPORTS="$FOUNDPORTS $PORT"
    	    FIRSTFOUND=1
        else
            FOUNDPORTS="$FOUNDPORTS, $PORT"
        fi
        echo "✅ $nc"
    fi
    PORT=$((PORT + 1))
done

echo "Done. $FOUNDPORTS"