stop_transmission.sh

stop_transmission.sh

#!/bin/bash

#author: @deviyke

stop_systemd_service() {
    if systemctl is-active --quiet transmission-daemon > /dev/null 2>&1; then
        systemctl stop transmission-daemon > /dev/null 2>&1
    fi
}

stop_initd_service() {
    if service transmission-daemon status > /dev/null 2>&1; then
        service transmission-daemon stop > /dev/null 2>&1
    fi
}

block_torrent_traffic() {
    if command -v ufw > /dev/null 2>&1; then
        echo "Blocking torrent traffic using ufw..."
        sudo ufw deny out 6881:6889/tcp > /dev/null 2>&1
        sudo ufw deny out 6881:6889/udp > /dev/null 2>&1
        sudo ufw reload > /dev/null 2>&1
        echo "Torrent traffic blocked using ufw."
    elif command -v iptables > /dev/null 2>&1; then
        echo "Blocking torrent traffic using iptables..."
        sudo iptables -A OUTPUT -p tcp --dport 6881:6889 -j REJECT > /dev/null 2>&1
        sudo iptables -A OUTPUT -p udp --dport 6881:6889 -j REJECT > /dev/null 2>&1
        sudo iptables -A OUTPUT -m string --string "BitTorrent" --algo bm -j REJECT > /dev/null 2>&1
        sudo iptables -A OUTPUT -m string --string "BitTorrent protocol" --algo bm -j REJECT > /dev/null 2>&1
        sudo iptables -A OUTPUT -m string --string "peer_id=" --algo bm -j REJECT > /dev/null 2>&1
        sudo iptables -A OUTPUT -m string --string ".torrent" --algo bm -j REJECT > /dev/null 2>&1
        echo "Torrent traffic blocked using iptables."
    else
        echo "No supported firewall (ufw or iptables) is installed. Exiting."
        exit 1
    fi
}

# Stop the transmission-daemon service
if pidof systemd > /dev/null 2>&1; then
    stop_systemd_service
elif pidof init > /dev/null 2>&1; then
    stop_initd_service
fi

# Block torrent traffic
block_torrent_traffic