centos下epel源可直接安装：yum install rtorrent

配置文件.rtorrent.rc ：#下载时每个种子的最大连接数

min_peers = 1

max_peers = 500

#种子下载完成后每个种子最大连接数，-1等同于上面下载时连接数

min_peers_seed = -1

max_peers_seed = -1

#全局最大上传和下载连接数

max_uploads_global = 0

max_downloads_global = 0

#每个种子最大上传和下载连接数

max_uploads = 200

max_downloads = 200

#上传/下载限速，0为不限制

download_rate = 0

upload_rate = 0

check_hash = no

directory = /root/download

session = /root/session

port_random = yes

port_range = 6998-10000

#外出连接加密，如果连接失败转为不加密重试，允许进入连接加密，同时还允许未加密连接进入

#protocol.encryption.set = allow_incoming,try_outgoing,enable_retry

#只允许进入、外出连接加密和内容加密

protocol.encryption.set = require

#进入、外出连接和内容都必须加密

#protocol.encryption.set = require,require_RC4

encoding_list = utf-8

dht = off

peer_exchange = no

use_udp_trackers = yes

#log.open_file = "rtorrent.log", (cat,/tmp/rtorrent.log)

#log.add_output = "debug", "rtorrent.log"

#当删除任务时同时删除下载的文件

method.set_key = event.download.erased,delete_erased,"execute=rm,-rf,--,$d.base_path="

schedule = low_diskspace,5,60,close_low_diskspace=100M

schedule = watch_directory,5,5,load_start=/root/watch/*.torrent

在tmux或screen窗口内启动：mkdir session download watch

rtorrent

将种上传到watch目录自动开始下载，在管理窗口通过上下左右方向键可查看详细信息。

ctrl+q退出，ctrl+d暂停，再按ctrl+d删除，ctrl+s开始。

加密的相关参数，多个值应该和iptables规则相似，从左到右匹配，默认不处理。# Encryption options, set to none (default) or any combination of the following:

# allow_incoming: allow incoming encrypted connections

# try_outgoing: use encryption for outgoing connections

# require: disable unencrypted handshakes

# require_RC4: also disable plaintext transmission after the initial encrypted handshake

# enable_retry: if the initial outgoing connection fails, retry with encryption turned on if it was off or off if it was on

# prefer_plaintext: choose plaintext when peer offers a choice between plaintext transmission and RC4 encryption, otherwise RC4 will be used