1. Rtorrent的特点
•BT下载 - 高速占内存少而且功能强大，绝不是mldonkey比得上的，mldonkey下电驴还可以考虑，bt的话还是闪一边去吧
速度比拼， 2M/512kbps ADSL
enhanced ctorrent: 80 KB/s mldonkey: 40 KB/s rtorrent: 233 KB/s
o支持协议加密，防止ISP封BT
o支持peer交换，客户端之间交换peer，让每个客户可以连上更多的客户
o支持多Tracker协议， UDP Tracker
o支持选择文件下载，以及调整下载优先级
o支持通过DHT网络实现无种下载
o支持快速恢复(Fast Resume)，下载中断后无需重新hash，节约时间
o支持nTorrent(windows)远程控制
2.Rtorrent DHT版本的安装
这个是在oleg optware上运行的，所以必须要先安装oleg optware才能进行后续工作，执行
ipkg update(如果无法运行，则使用/opt/bin/ipkg update，下同)
ipkg install rtorrent
【历史】由于nslu2 optware的官方的svn已经更新，从记录上看，源中的libtorrent和rtorrent已经提供了DHT,所以无需再下载附件中的文件(已删除)。不过以后如果rtorrent有新的功能，也会提前放出来给大家尝鲜，感谢大家的支持
-----------------------------optware 官方更新记录-------------------------------------------
r7590 | oleo | 2008-01-16 14:54:55 +0800 (Wed, 16 Jan 2008) | 1 line
rtorrent: 0.7.9->r1027 with DHT - startup script by al37919
3. Rtorrent DHT版的配置
配置文件应该在/opt/etc下可以找到一个名叫rtorrent.conf的文件，可以在这个文件的基础上做修改，下面是一个例子，#号后面的是注释，不用管他，蓝色标出的是比较重要的配置
################################## 配置文件开始 ####################################
# This is an example resource file for rTorrent. Copy to
# ~/.rtorrent.rc and enable/modify the options as needed. Remember to
# uncomment the options you wish to enable.
# 每个torrent文件允许连接的最大以及最小的peer的数目
min_peers = 40
max_peers = 250
# Same as above but for seeding completed torrents (-1 = same as downloading)
#min_peers_seed = 10
#max_peers_seed = 50
# Maximum number of simultanious uploads per torrent.
max_uploads = 15
# 全局上传和下载速率，单位是KB. "0" 代表无限制
download_rate = 75
upload_rate = 28
# 默认下载目录，下载好的文件会放到这里
directory = /opt/downloads
# Default session directory. Make sure you don't run multiple instance
# of rtorrent using the same session directory. Perhaps using a
# relative path?
session = /opt/downloads/.session
# 下面是一个非常有用的功能：监视目录
#放在/opt/torrent目录底下的torrent文件会自动开始下载
#配置好监视目录以后，只要通过samba或scp往这个目录传种子，就会自动开始下载
schedule = watch_directory,5,5,load_start=/opt/torrent/*.torrent
#schedule = untied_directory,5,5,stop_untied=
# Close torrents when diskspace is low.
#schedule = low_diskspace,5,60,close_low_diskspace=100M
# Stop torrents when reaching upload ratio in percent,
# when also reaching total upload in bytes, or when
# reaching final upload ratio in percent.
# example: stop at ratio 2.0 with at least 200 MB uploaded, or else ratio 20.0
#schedule = ratio,60,60,stop_on_ratio=200,200M,2000
# The ip address reported to the tracker.
#ip = 127.0.0.1
#ip = rakshasa.no
# The ip address the listening socket and outgoing connections is
# bound to.
#bind = 127.0.0.1
#bind = rakshasa.no
# Port range to use for listening.
#port_range = 6890-6999
# Start opening ports at a random position within the port range.
#port_random = no
# Check hash for finished torrents. Might be usefull until the bug is
# fixed that causes lack of diskspace not to be properly reported.
#check_hash = no
# 是否使用UDP trackers，建议选yes
use_udp_trackers = yes
# Alternative calls to bind and ip that should handle dynamic ip's.
#schedule = ip_tick,0,1800,ip=rakshasa
#schedule = bind_tick,0,1800,bind=rakshasa
# 是否允许协议加密，建议改成allow_incoming,enable_retry,prefer_plaintext的组合体，具体原因就不解释了
# allow_incoming, try_outgoing, require, require_RC4, enable_retry, prefer_plaintext
#
# The example value allows incoming encrypted connections, starts unencrypted
# outgoing connections but retries with encryption if they fail, preferring
# plaintext to RC4 encryption after the encrypted handshake
#
encryption = allow_incoming,enable_retry,prefer_plaintext
#
# Do not modify the following parameters unless you know what you're doing.
#
# Hash read-ahead controls how many MB to request the kernel to read
# ahead. If the value is too low the disk may not be fully utilized,
# while if too high the kernel might not be able to keep the read
# pages in memory thus end up trashing.
#hash_read_ahead = 10
# Interval between attempts to check the hash, in milliseconds.
#hash_interval = 100
# Number of attempts to check the hash while using the mincore status,
# before forcing. Overworked systems might need lower values to get a
# decent hash checking rate.
#hash_max_tries = 10
# Max number of files to keep open simultaniously.
#max_open_files = 128
# Number of sockets to simultaneously keep open.
#max_open_sockets = # Example of scheduling commands: Switch between two ip's every 5
# seconds.
#schedule = "ip_tick1,5,10,ip=torretta"
#schedule = "ip_tick2,10,10,ip=lampedusa"
# Remove a scheduled event.
#schedule_remove = "ip_tick1"
#选择utf-8可以在samba中看到中文
encoding_list = UTF-8
#rtorrent创建的文件夹(或文件)的权限，默认是0644，建议改成0000(感谢xuanwuhu)，使所有用户都能访问。
#也只有这样在samba中才可以直接打开、拷贝、删除rtorrent创建的文件
umask = 0000
#下面两个选项打开dht的功能，照做即可，另外如果想让 rtorrent 在启动的时候就使用 DHT，可以把dht=auto改为dht=on
dht = auto
dht_port = 6778
#允许peer交换，当然允许了，多多益善啊
peer_exchange = yes
#最后这个参数和web配置以及远程管理有关，稍后再介绍
scgi_port = :5000
################################## 配置文件结束 ####################################
这个配置文件默认放在用户的HOME目录中，因此建议执行以下操作
mkdir /opt/root
export HOME=/opt/root
将以上配置文件更名为.rtorrent.rc,放在/opt/root目录底下
最后在telnet中敲入rtorrent(也可能要输入/opt/bin/rtorrent)，就能启动rtorrent，此时往监视目录中放一个torrent文件，就会开始下载，此时注意页面下方是否出现
(14:31:09) Starting DHT server on port 6778.的字样，如果有说明DHT配置成功了
为了达到更好的下载效果，需要在7231-4P或WL500gP的上一级路由上做端口映射(如果是7231-4P或WL500gP直接拨号的话，就不需要了)，另外，如果在7231-4P或WL500gP上下载，必须要把iptables的INPUT链的对应的端口打开，可以在ddwrt的启动脚本中加入
iptables -I INPUT 1 -p tcp --dport 1024:10000 -j ACCEPT
iptables -I INPUT 1 -p udp --dport 1024:10000 -j ACCEPT
4. Rtorrent 的使用和管理
rtorrent我个人认为有三种使用方法，1. screen + 监视目录 2.ntorrent远程GUI管理 3.web管理，我个人认为第一种方法是最方便的而且耗资源最少的方法
方法1.screen + 监视目录
这种方法通过监视目录的方式添加种子，然后使用screen进行管理，screen的最最简单用法见本帖第2页56楼
rtorrent的使用方法见下面两篇帖
繁体中文http://discuz.orz101.com/viewthr ... &extra=page%3D1
英文
方法2.ntorrent远程GUI管理
第一步，先对rtorrent配置文件做一些修改，注释掉scgi_port = :5000这一行(前面加#)，加入下面这行
scgi_local = /opt/var/run/rpc.socket
第二步，安装lighttpd
ipkg install lighttpd
第三步，修改lighttpd配置文件，使用编辑器编辑/opt/etc/lighttpd/lighttpd.conf
首先在server.modules中加入一行
server.modules = (
# "mod_rewrite",
# "mod_redirect",
# "mod_alias",
"mod_access",
# "mod_cml",
# "mod_trigger_b4_dl",
# "mod_auth",
# "mod_status",
# "mod_setenv",
# "mod_fastcgi",
# "mod_proxy",
# "mod_simple_vhost",
# "mod_evhost",
# "mod_userdir",
# "mod_cgi",
# "mod_compress",
# "mod_ssi",
# "mod_usertrack",
# "mod_expire",
# "mod_secdownload",
# "mod_rrdtool",
"mod_accesslog", "mod_scgi")
然后在lighttpd.conf的最后加上
scgi.server = (
"/RPC2" =>
( "127.0.0.1" =>
(
"socket" => "/opt/var/run/rpc.socket",
"check-local" => "disable",
"disable-time" => 0, # don't disable scgi if connection fails
)
)
)
保存退出。
第四步，重启rtorrent和lighttpd
/opt/etc/init.d/S80lighttpd stop
/opt/etc/init.d/S80lighttpd start
killall rtorrent
rtorrent
第五步，在windows上安装ntorrent
进入，点右侧下载nTorrent-bin-20071220.tar.bz2(需要安装java运行库)
双击nTorrent.jar启动ntorrent，在登录窗口选择
protocol : http
host : 你的7231-4P,WL500g或者MSS的IP
port : 8081 (可以在/opt/etc/lighttpd/lighttpd.conf中修改成其他的，默认是这个)
mountpoint : /RPC2
最底下用户名和密码不填，点save然后点connect，如果能连上就可以使用ntorrent远程控制了
方法3.web管理
待续
[本帖最后由 hlidea 于 2008-1-21 09:08 编辑]
