shadows

### Install

Debian / Ubuntu:

apt-get install python-pip
    pip install shadowsocks

CentOS:

yum install python-setuptools && easy_install pip
    #curl -o get-pip.py https://bootstrap.pypa.io/pip/2.7/get-pip.py && python get-pip.py
    pip install shadowsocks

Windows:

See [Install Server on Windows]

### Usage

ssserver -p 443 -k password -m aes-256-cfb

To run in the background:

sudo ssserver -p 443 -k password -m aes-256-cfb --user nobody -d start
    
    ssserver --log-file /var/log/shadowsocks-12300.log --pid-file /var/run/shadowsocks-12300.pid --user nobody -p 12300 -k password -m aes-256-cfb -s 0.0.0.0 -d start

To stop:

sudo ssserver -d stop

To check the log:

sudo less /var/log/shadowsocks.log

Check all the options via `-h`. You can also use a [Configuration] file
instead.

Client
------

* [Windows] / [OS X]
* [Android] / [iOS]
* [OpenWRT]

Use GUI clients on your local PC/phones. Check the README of your client
for more information.

Documentation
-------------

You can find all the documentation in the [Wiki].

Build from source
-------------
    yum install openssl openssl-libs openssl-devel gcc gcc-c++
    wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgz
    tar zxvf Python-3.4.3.tgz 
    ./configure --prefix=/root/programs/python3.4.3
    make
    make install
    #pip uninstall shadowsocks
    
    wget https://codeload.github.com/shadowsocks/shadowsocks/zip/master
    mv master shadowsocks.zip
    unzip shadowsocks.zip
    cd shadowsocks-master/
    /root/programs/python3.4.3/bin/python3.4 setup.py build
    /root/programs/python3.4.3/bin/python3.4 setup.py install
    /root/programs/python3.4.3/bin/ssserver -p port -k password -m aes-256-cfb --user nobody --fast-open -d start --log-file /var/log/shadowsocks.log  -t 120 -a true
    
    /root/programs/python3.4.3/bin/ssserver -p xxx -k password -m aes-256-cfb --user nobody --log-file /var/log/shadowsocks.log --workers 20 --fast-open -d start
    
    
Tcp fast open
----------

echo 3 > /proc/sys/net/ipv4/tcp_fastopen

/root/programs/python3.4.3/bin/python3.4 /root/programs/python3.4.3/bin/ssserver --log-file /var/log/shadowsocks.log --pid-file /var/run/shadowsocks.pid  --user nobody -s ipxxx -p port -k password -m aes-256-cfb  -a -q --fast-open -d start

Setup a Shadowsocks relay
--------

If you want your client connected to a Japan VPS, but you want a US IP.

Client <--> Japan VPS <--> US VPS

**Easy version**

Setup Shadowsocks server as usual on US VPS.

On Japan VPS, enable forwarding. Replace US_VPS_IP and JAPAN_VPS_IP with actual IP:

echo 1 > /proc/sys/net/ipv4/ip_forward
    iptables -t nat -A PREROUTING -p tcp --dport 8388 -j DNAT --to-destination US_VPS_IP:8388
    iptables -t nat -A POSTROUTING -p tcp -d US_VPS_IP --dport 8388 -j SNAT --to-source JAPAN_VPS_IP

Set your server to JAPAN_VPS_IP:8388 on your client.

**Better version**

For those who want more control and better performance, use haproxy instead. You can also enable load balance by adding multiple servers.

yum install haproxy
    vi /etc/haproxy/haproxy.cfg
    -----
    
    global
    	log  127.0.0.1:514 local2
    	chroot      /var/lib/haproxy
    	pidfile     /var/run/haproxy.pid
    	maxconn     4000
    	user        haproxy
    	group       haproxy
    	daemon
    	ulimit-n  51200
    
    defaults
            log global
            mode    tcp
            option  dontlognull
            timeout connect 1000
            timeout client 150000
            timeout server 150000
    
    frontend ss-in
            bind *:8388
            default_backend ss-out
    
    backend ss-out
            server server1 louyj.com:12300 maxconn 20480

configure syslog

vi /etc/sysconfig/rsyslog 
    SYSLOGD_OPTIONS="-c 2 -m 0 -r -x"
    
    vi /etc/rsyslog.conf
    $ModLoad imudp
    $UDPServerRun 514
    $ModLoad imtcp
    $InputTCPServerRun 514
    local2.*         /var/log/haproxy.log
    service rsyslog restart

Then run

haproxy -f /etc/haproxy/haproxy.cfg

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