mirror of
https://github.com/shadowsocks/shadowsocks-libev.git
synced 2026-10-30 22:13:49 +00:00
Linus Yang
21b9258d77
Should be built against MinGW, and please note that only ss-local is ported due to lack win32 support of libasyncns. And libev doesn't support IOCP but only supports select
189 lines
6.6 KiB
Markdown
189 lines
6.6 KiB
Markdown
shadowsocks-libev
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=================
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Intro
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-----
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[Shadowsocks-libev](http://shadowsocks.org) is a lightweight secured scoks5
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proxy for embedded devices and low end boxes.
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It is a port of [shadowsocks](https://github.com/clowwindy/shadowsocks)
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created by [@clowwindy](https://github.com/clowwindy) maintained by
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[@madeye](https://github.com/madeye).
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Current version: 1.4.0 | [](https://travis-ci.org/madeye/shadowsocks-libev)
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Changelog
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---------
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1.4.0 -- Sun, 08 Sep 2013 02:20:40 +0000
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* Add standard socks5 udp support.
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1.3.3 -- Fri, 21 Jun 2013 09:59:20 +0800
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* Provide more info in verbose mode.
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1.3.2 -- Sun, 09 Jun 2013 09:52:31 +0000
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* Fix some ciphers by @linusyang.
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1.3.1 -- Tue, 04 Jun 2013 00:56:17 +0000
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* Support more cihpers: camellia, idea, rc2 and seed.
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1.3 -- Thu, 16 May 2013 10:51:15 +0800
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* Able to bind connections to specific interface
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* Support more ciphers: aes-128-cfb, aes-192-cfb, aes-256-cfb, bf-cfb, cast5-cfb, des-cfb
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1.2 -- Tue, 07 May 2013 14:10:33 +0800
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* Close timeouted TCP connections
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* Fix a high load issue
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1.1 -- Wed, 10 Apr 2013 12:11:36 +0800
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* Fix a IPV6 resolve issue
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1.0 -- Sat, 06 Apr 2013 16:59:15 +0800
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* Initial release
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Features
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--------
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Shadowsocks-libev is writen in pure C and only depends on
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[libev](http://software.schmorp.de/pkg/libev.html) and
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[openssl](http://www.openssl.org/).
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In normal usage, the memory consumption is about 600KB and the CPU utilization is
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no more than 5% on a low-end router (Buffalo WHR-G300N V2 with a 400MHz MIPS CPU,
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32MB memory and 4MB flash).
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Installation
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------------
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For Unix-like systems, especially Debian-based systems,
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e.g. Ubuntu, Debian or Linux Mint, you can build the binary like this:
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```bash
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sudo apt-get install build-essential autoconf libtool libssl-dev
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./configure && make
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sudo make install
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```
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For Windows, use either MinGW (msys) or Cygwin to build.
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At the moment, only `ss-local` is supported to build against MinGW (msys).
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If you are using MinGW (msys), please download OpenSSL source tarball
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to the home directory of msys, and build it like this (may take a few minutes):
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```bash
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tar zxf openssl-1.0.1e.tar.gz
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cd openssl-1.0.1e
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./config --prefix="$HOME/prebuilt" --openssldir="$HOME/prebuilt/openssl"
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make && make install
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```
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Then, build the binary using the commands below, and all `.exe` files
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will be built at `$HOME/ss/bin`:
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```bash
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./configure --prefix="$HOME/ss" --with-openssl="$HOME/prebuilt"
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make && make install
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```
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Usage
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-----
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```
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usage:
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ss-[local|redir|server]
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-s <server_host> host name or ip address of your remote server
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-p <server_port> port number of your remote server
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-l <local_port>> port number of your local server
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-k <password> password of your remote server
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[-m <encrypt_method>] encrypt method, supporting table, rc4,
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aes-128-cfb, aes-192-cfb, aes-256-cfb,
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bf-cfb, camellia-128-cfb, camellia-192-cfb,
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camellia-256-cfb, cast5-cfb, des-cfb,
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idea-cfb, rc2-cfb and seed-cfb
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[-f <pid_file>] valid path to the pid file
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[-t <timeout>] socket timeout in seconds
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[-c <config_file>] json format config file
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[-i <interface>] specific network interface to bind,
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only avaliable in local and server modes
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[-b <local_address>] specific local address to bind,
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only avaliable in local and redir modes
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[-u] udprelay mode to supprot udp traffic
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only avaliable in local and server modes
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[-v] verbose mode, debug output in console
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notes:
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ss-redir provides a transparent proxy function and only works on the
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Linux platform with iptables.
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```
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## Advanced usage
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The latest shadowsocks-libev has provided a *redir* mode. You can configure your linux based box or router to proxy all tcp traffic transparently.
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# Create new chain
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root@Wrt:~# iptables -t nat -N SHADOWSOCKS
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# Ignore your shadowsocks server's addresses
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# It's very IMPORTANT, just be careful.
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 123.123.123.123 -j RETURN
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# Ignore LANs and any other addresses you'd like to bypass the proxy
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# See Wikipedia and RFC5735 for full list of reserved networks.
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# See ashi009/bestroutetb for a highly optimized CHN route list.
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 240.0.0.0/4 -j RETURN
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# Anything else should be redirected to shadowsocks's local port
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root@Wrt:~# iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345
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# Apply the rules
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root@Wrt:~# iptables -t nat -A OUTPUT -p tcp -j SHADOWSOCKS
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# Start the shadowsocks-redir
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root@Wrt:~# ss-redir -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid
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## Security Tips
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Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend to
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set up your server's firewall rules to limit connections from each user.
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# Up to 32 connections are enough for normal usages
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iptables -A INPUT -p tcp --syn --dport ${SHADOWSOCKS_PORT} -m connlimit --connlimit-above 32 -j REJECT --reject-with tcp-reset
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## License
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Copyright (C) 2013 Max Lv <max.c.lv@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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