Introduction

This is a modified version of the Transmission BitTorrent client, based on the official 4.0.6 release.

What can it do

Block bad clients such as Thunder (Xunlei).
Block P2P media players such as Xfplay.
Block bad offline downloaders such as BaiduNetdisk.

Build (Only for Ubuntu ≥22.04)

    $ sudo apt update
    $ sudo apt install build-essential automake autoconf cmake libtool pkg-config intltool libcurl4-openssl-dev libglib2.0-dev libevent-dev libminiupnpc-dev libgtk-3-dev libgtkmm-3.0-dev libglibmm-2.4-dev libssl-dev libsystemd-dev
    $ git clone --recurse-submodules https://github.com/zyjking/Transmission-modified Transmission
    $ cd Transmission
    $ cmake -DCMAKE_BUILD_TYPE=Release .
    $ cmake --build .
    $ sudo cmake --install .

For systemctl service

In /lib/systemd/system directory, create a file named transmission-daemon.service with following content.
Also, ensure you have created user transmission or alternative.

[Unit]
Description=Transmission BitTorrent Daemon
Wants=network-online.target
After=network-online.target

[Service]
User=transmission
Type=notify
ExecStart=/usr/local/bin/transmission-daemon -f --log-level=error
ExecReload=/bin/kill -s HUP $MAINPID
NoNewPrivileges=true
MemoryDenyWriteExecute=true
ProtectSystem=true
PrivateTmp=true

[Install]
WantedBy=multi-user.target

For init.d script

In /etc/init.d directory, create a file named transmission-daemon with the following content.

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          transmission-daemon
# Required-Start:    $local_fs $remote_fs $network
# Required-Stop:     $local_fs $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start or stop the transmission-daemon.
# Description:       Enable service provided by transmission-daemon.
### END INIT INFO

NAME=transmission-daemon
DAEMON=/usr/bin/$NAME
USER=debian-transmission
STOP_TIMEOUT=30

export PATH="${PATH:+$PATH:}/sbin"

[ -x $DAEMON ] || exit 0

[ -e /etc/default/$NAME ] && . /etc/default/$NAME

. /lib/lsb/init-functions

start_daemon () {
    if [ $ENABLE_DAEMON != 1 ]; then
        log_progress_msg "(disabled)"
		log_end_msg 255 || true
    else    
        start-stop-daemon --start \
        --chuid $USER \
		$START_STOP_OPTIONS \
        --exec $DAEMON -- $OPTIONS || log_end_msg $?
		log_end_msg 0
    fi
}

case "$1" in
    start)
        log_daemon_msg "Starting bittorrent daemon" "$NAME"
        start_daemon
        ;;
    stop)
        log_daemon_msg "Stopping bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON --retry $STOP_TIMEOUT \
            --oknodo || log_end_msg $?
        log_end_msg 0
        ;;
    reload)
        log_daemon_msg "Reloading bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON \
            --oknodo --signal 1 || log_end_msg $?
        log_end_msg 0
        ;;
    restart|force-reload)
        log_daemon_msg "Restarting bittorrent daemon" "$NAME"
        start-stop-daemon --stop --quiet \
            --exec $DAEMON --retry $STOP_TIMEOUT \
            --oknodo || log_end_msg $?
        start_daemon
        ;;
    status)
        status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
        ;;
    *)
        log_action_msg "Usage: /etc/init.d/$NAME {start|stop|reload|force-reload|restart|status}" || true
        exit 2
        ;;
esac

exit 0