centos7 安装 transmission

貌似官方文档

注意：是centos7才能用此方法

Step 1. First, you need to enable EPEL repository on your system.

yum install epel-release
yum -y update

Step 2. Installing Transmission.
Just run the following command to install Transmission:

yum install transmission-cli transmission-common transmission-daemon

Once complete, you can verify Transmission is installed by running the below command:

systemctl start transmission-daemon.service
systemctl stop transmission-daemon.service

Step 3. Configuration Transmission.
Edit the transmission settings.json config file:

yum install nano

nano /var/lib/transmission/.config/transmission-daemon/settings.json

OK now let’s edit the settings (to your liking) and don’t forget to save.

"rpc-authentication-required": true,

"rpc-enabled": true,

"rpc-password": "mypassword",

"rpc-username": "mysuperlogin",

"rpc-whitelist-enabled": false,

"rpc-whitelist": "0.0.0.0",

nano使用快捷Ctrl+X，然后会提示输入Y保存修改、输入N放弃修改，有的linux系统可能还要回车（Enter) 确认。

After editing and saving the settings.json file, start the transmission daemon:

systemctl start transmission-daemon.service

Step 4. Accessing Transmission.
Transmission BitTorrent Client will be available on HTTP port 9091 by default. Open your favorite browser and navigate to http://yourdomain.com:9091 or http://server-ip:9091. You should be greeted with the Transmission WebUI. After logging in, you will notice that the value for the rpc-password inside the settings.json file will be hashed. If you are using a firewall, please open port 80 to enable access to the control panel.

Step 5.Transmission 自动启动

1.修改脚本文件rc.local：vim /etc/rc.d/rc.local

　　这个脚本是使用者自定的开机启动程序，可以在里面添加想在系统启动之后执行的脚本或者脚本执行命令

2.添加如下内容：

　　systemctl start transmission-daemon.service

3.esc 退出编辑，:wq 保存修改

4.将rc.local修改为可执行

　　chmod 777 /etc/rc.d/rc.local

Step 6.给Transmission下载目录授权读写权限

比如：775 权限

trouble shooting

在客户端访问服务端的 9091 端口打不开

检查 firewalld 是否启动，需要检查 tcp 9091 端口是否放行。注意 transmission 需要在一个端口（默认51413）监听，必须在 firewalld 中放行 tcp、udp 的这个端口。
sudo firewall-cmd --permanent --add-service=transmission-client,
这个 transmission-client 估计是在安装 transmission 的时候自动创建的。
检查本机的 9091 端口是否在 listening ss -lnp | grep 9091

修改下载路径到 /home/red/transmission

add red to the transmission group

sudo usermod -a -G transmission red

change the folder ownership

sudo chgrp -R transmission /home/red/transmission/

grant write access to the group

sudo chmod -R 770 /home/red/transmission/

Stop the deamon with

sudo systemctl stop transmission-daemon.service
The last thing to do is change the file creation mask, so that the downloaded files would be writeable by red.
sudo vim /var/lib/transmission/.config/transmission-daemon/settings.json
and change "umask": 18 to "umask": 2.
start tranmission-daemon
sudo sudo systemctl start transmission-daemon.service

修改 setting.json 设置默认下载路径

修改下面两个地方 修改配置需要提前 stop transmission-daemon

"download-dir": "/home/red/transmission",
"incomplete-dir": "/home/red/transmission",

如果要卸载transmission,请用命令：

yum erase transmission -y

centos6 安装transmission

安装后，启动transmission,然后再关掉：

service transmission-daemon start

service transmission-daemon stop

另外在CentOS 6上发现就算是修改了配置文件settings.json后启动transmission还行直接进入界面，根本不需要密码。
查看配置文件发"rpc-authentication-required": 又变成false，后来研究了好久发现还需要把/etc/init.d/transmission-daemon里面的参数修改一下

vi /etc/init.d/transmission-daemon

把

DAEMON_ARGS="-T --blocklist -g $TRANSMISSION_HOME/.config/transmission"

修改为

DAEMON_ARGS="-t --blocklist -g $TRANSMISSION_HOME/.config/transmission"

另外还要关闭transmission后再去修改settings.json，

service transmission-daemon stop

vi /var/lib/transmission/.config/transmission/settings.json

把 "rpc-authentication-required": false,

修改为:"rpc-authentication-required": true,

启动 service transmission-daemon start