安装依赖

apt-get update
apt-get install build-essential pkg-config automake libtool git libgeoip-dev python3 python3-dev -y
apt-get install libboost-dev libboost-system-dev libboost-chrono-dev libboost-random-dev libssl-dev -y
apt-get install qtbase5-dev qttools5-dev-tools libqt5svg5-dev zlib1g-dev -y

1.Debian9 系统 只能最高安装 qBittorrent4.19

安裝libtorrent 1.1.13

wget https://github.com/arvidn/libtorrent/releases/download/libtorrent-1_1_13/libtorrent-rasterbar-1.1.13.tar.gz
tar xf libtorrent-rasterbar-1.1.13.tar.gz
cd libtorrent-rasterbar-1.1.13
./configure --disable-debug --enable-encryption --with-libgeoip=system
make -j$(nproc)
make install
ldconfig

安裝qBittorrent 4.1.9

建议代码一行行复制再粘贴，一堆复制粘贴容易出错或者遗漏
wget https://github.com/qbittorrent/qBittorrent/archive/release-4.1.9.tar.gz
tar xf release-4.1.9.tar.gz
cd qBittorrent-release-4.1.9
./configure --disable-gui --disable-debug
make -j$(nproc)
make install

2.Debian10系统 安装最新版 qBittorrent4.25

安裝libtorrent 1.2.7

wget https://github.com/arvidn/libtorrent/releases/download/libtorrent_1_2_7/libtorrent-rasterbar-1.2.7.tar.gz
tar xf libtorrent-rasterbar-1.2.7.tar.gz
cd libtorrent-rasterbar-1.2.7
./configure --disable-debug --enable-encryption --with-libgeoip=system CXXFLAGS=-std=c++14
make -j$(nproc)
make install
ldconfig

安裝qBittorren4.25

wget https://github.com/qbittorrent/qBittorrent/archive/release-4.2.5.tar.gz
tar xf release-4.2.5.tar.gz
cd qBittorrent-release-4.2.5
./configure --disable-gui --disable-debug
make -j$(nproc)
make install

4.开机启动

vi /etc/systemd/system/qbittorrent.service

[Unit]
Description=qBittorrent Daemon Service
After=network.target

[Service]
LimitNOFILE=512000
User=root
ExecStart=/usr/local/bin/qbittorrent-nox
ExecStop=/usr/bin/killall -w qbittorrent-nox

[Install]
WantedBy=multi-user.target

systemctl enable qbittorrent.service   #开机自启动
systemctl start qbittorrent.service    #启动
systemctl restart qbittorrent.service  #重启

启动qBittorrent

qbittorrent-nox

访问一下web页面，ip:8080,用户名admin，密码adminadmin，然后更改一下语言啊，下载地址啊之类的设置。这里说下为了防止出错，建议给下载目录0777权限。

修改 qBittorrent 访问端口 命令

qbittorrent-nox --webui-port=8088 &

把 8888 修改成 你想要的端口 然后用 qBittorrent重启命令 重启下即可

[参考] https://gd772.com/index.php/archives/17/