参考了Pluviophile的博客：https://lisupy.github.io/2017/11/01/2017-11-01-VPS%E6%90%AD%E5%BB%BA%E7%A6%BB%E7%BA%BF%E4%B8%8B%E8%BD%BD%E6%9C%8D%E5%8A%A1%E5%99%A8/#%E5%8A%A8%E6%9C%BA
Vultr上的VPS：操作系统为 centos7 工具：transmission
安装transmission：
wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm
yum -y install transmission transmission-daemon #安装transmission
yum -y install vim之后要运行一下 transmission，否则不会出现配置文件
service transmission-daemon start #先运行
service transmission-daemon stop #再关闭打开配置文件
vim /var/lib/transmission/.config/transmission-daemon/settings.json
然后就可以修改配置文件了，可以根据注释自己修改
{
"alt-speed-down": 50,
"alt-speed-enabled": false,
"alt-speed-time-begin": 540,
"alt-speed-time-day": 127,
"alt-speed-time-enabled": false,
"alt-speed-time-end": 1020,
"alt-speed-up": 50,
"bind-address-ipv4": "0.0.0.0",
"bind-address-ipv6": "::",
"blocklist-enabled": false,
"blocklist-url": "http://www.example.com/blocklist",
"cache-size-mb": 4,
"dht-enabled": true,
"download-dir": "/root/Downloads", #下载文件夹
"download-queue-enabled": true,
"download-queue-size": 5,
"encryption": 1,
"idle-seeding-limit": 30,
"idle-seeding-limit-enabled": false,
"incomplete-dir": "/var/lib/transmission/Downloads",
"incomplete-dir-enabled": false,
"lpd-enabled": false,
"message-level": 1,
"peer-congestion-algorithm": "",
"peer-id-ttl-hours": 6,
"peer-limit-global": 200,
"peer-limit-per-torrent": 50,
"peer-port": 51413,
"peer-port-random-high": 65535,
"peer-port-random-low": 49152,
"peer-port-random-on-start": false,
"peer-socket-tos": "default",
"pex-enabled": true,
"port-forwarding-enabled": true,
"preallocation": 1,
"prefetch-enabled": true,
"queue-stalled-enabled": true,
"queue-stalled-minutes": 30,
"ratio-limit": 2,
"ratio-limit-enabled": false,
"rename-partial-files": true,
"rpc-authentication-required": false,
"rpc-bind-address": "0.0.0.0",
"rpc-enabled": true,
"rpc-host-whitelist": "",
"rpc-host-whitelist-enabled": true,
"rpc-password": "password", #密码
"rpc-port": 9091,
"rpc-url": "/transmission/",
"rpc-username": "username", #用户名
"rpc-whitelist": "127.0.0.1",
"rpc-whitelist-enabled": false,
"scrape-paused-torrents-enabled": true,
"script-torrent-done-enabled": false,
"script-torrent-done-filename": "",
"seed-queue-enabled": false,
"seed-queue-size": 10,
"speed-limit-down": 100,
"speed-limit-down-enabled": false,
"speed-limit-up": 100,
"speed-limit-up-enabled": false,
"start-added-torrents": true,
"trash-original-torrent-files": false,
"umask": 18,
"upload-slots-per-torrent": 14,
"utp-enabled": true
}
：wq保存以后还有最重要的一步，为端口打开防火墙
firewall-cmd --permanent --add-port=9091/tcp
firewall-cmd --reload
最后打开网页就可以了
http://你的ip:9091后续还会更新如何从VPS下载已离线的文件