# Debian Wheezy, Ubuntu 12.04 or any distribution with libssl > 1.0.1
deb http://shadowsocks.org/debian wheezy main

# Debian Squeeze, Ubuntu 11.04, or any distribution with libssl > 0.9.8, but < 1.0.0
deb http://shadowsocks.org/debian squeeze main

# Edit the configuration
sudo vim /etc/shadowsocks-libev/config.json

# Start the service
sudo /etc/init.d/shadowsocks-libev start

su -c 'dnf copr enable librehat/shadowsocks'

shadowsocks_libev_enable="YES"

usage:

    ss-[local|redir|server|tunnel]

          -s <server_host>           host name or ip address of your remote server
          -p <server_port>           port number of your remote server
          -l <local_port>            port number of your local server
          -k <password>              password of your remote server


          [-m <encrypt_method>]      encrypt method: table, rc4, rc4-md5
                                     aes-128-cfb, aes-192-cfb, aes-256-cfb,
                                     bf-cfb, camellia-128-cfb, camellia-192-cfb,
                                     camellia-256-cfb, cast5-cfb, des-cfb,
                                     idea-cfb, rc2-cfb and seed-cfb
          [-f <pid_file>]            file to store the pid
          [-t <timeout>]             socket timeout in seconds
          [-c <config_file>]         config file in json


          [-i <interface>]           network interface to bind,
                                     not available in redir mode
          [-b <local_address>]       local address to bind,
                                     not available in server mode
          [-u]                       enable udprelay mode
                                     not available in redir mode
          [-L <addr>:<port>]         setup a local port forwarding tunnel,
                                     only available in tunnel mode
          [-v]                       verbose mode


          [--fast-open]              enable TCP fast open,
                                     only available on Linux kernel > 3.7.0
          [--acl <acl_file>]         config file of ACL (Access Control List)

notes:

    ss-redir provides a transparent proxy function and only works on the 
    Linux platform with iptables.

# Create new chain
root@Wrt:~# iptables -t nat -N SHADOWSOCKS

# Ignore your shadowsocks server's addresses
# It's very IMPORTANT, just be careful.
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 123.123.123.123 -j RETURN

# Ignore LANs and any other addresses you'd like to bypass the proxy
# See Wikipedia and RFC5735 for full list of reserved networks.
# See ashi009/bestroutetb for a highly optimized CHN route list.
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 240.0.0.0/4 -j RETURN

# Anything else should be redirected to shadowsocks's local port
root@Wrt:~# iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345

# Apply the rules
root@Wrt:~# iptables -t nat -A OUTPUT -p tcp -j SHADOWSOCKS

# Start the shadowsocks-redir
root@Wrt:~# ss-redir -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid

# Up to 32 connections are enough for normal usages
iptables -A INPUT -p tcp --syn --dport ${SHADOWSOCKS_PORT} -m connlimit --connlimit-above 32 -j REJECT --reject-with tcp-reset