Provided by: shadowsocks-libev_3.2.5+ds-1_amd64 bug


       ss-local - shadowsocks client as socks5 proxy, libev port


       ss-local [-uv6] [-h|--help] [-s <server_host>] [-p <server_port>] [-l <local_port>] [-k
       <password>] [-m <encrypt_method>] [-f <pid_file>] [-t <timeout>] [-c <config_file>] [-i
       <interface>] [-a <user_name>] [-b <local_address>] [-n <nofile>] [--fast-open]
       [--reuse-port] [--acl <acl_config>] [--mtu <MTU>] [--no-delay] [--plugin <plugin_name>]
       [--plugin-opts <plugin_options>] [--password <password>] [--key <key_in_base64>]


       Shadowsocks-libev is a lightweight and secure socks5 proxy. It is a port of the original
       shadowsocks created by clowwindy. Shadowsocks-libev is written in pure C and takes
       advantage of libev to achieve both high performance and low resource consumption.

       Shadowsocks-libev consists of five components. ss-local(1) works as a standard socks5
       proxy on local machines to proxy TCP traffic. For more information, check out


       -s <server_host>
           Set the server’s hostname or IP.

       -p <server_port>
           Set the server’s port number.

       -l <local_port>
           Set the local port number.

       -k <password>, --password <password>
           Set the password. The server and the client should use the same password.

       --key <key_in_base64>
           Set the key directly. The key should be encoded with URL-safe Base64.

       -m <encrypt_method>
           Set the cipher.

           Shadowsocks-libev accepts 18 different ciphers:

           aes-128-gcm, aes-192-gcm, aes-256-gcm, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb,
           aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, camellia-128-cfb, camellia-192-cfb,
           camellia-256-cfb, chacha20-ietf-poly1305, salsa20, chacha20 and chacha20-ietf.

           The default cipher is chacha20-ietf-poly1305.

           If built with PolarSSL or custom OpenSSL libraries, some of these ciphers may not

       -a <user_name>
           Run as a specific user.

       -f <pid_file>
           Start shadowsocks as a daemon with specific pid file.

       -t <timeout>
           Set the socket timeout in seconds. The default value is 60.

       -c <config_file>
           Use a configuration file.

           Refer to shadowsocks-libev(8) CONFIG FILE section for more details.

       -n <number>
           Specify max number of open files.

           Only available on Linux.

       -i <interface>
           Send traffic through specific network interface.

           For example, there are three interfaces in your device, which is lo (, eth0
           ( and eth1 ( Meanwhile, you configure ss-local to listen on
  and bind to eth1. That results the traffic go out through eth1, but not
           lo nor eth0. This option is useful to control traffic in multi-interface environment.

       -b <local_address>
           Specify local address to bind.

           Enable UDP relay.

           Enable UDP relay and disable TCP relay.

           Resovle hostname to IPv6 address first.

           Enable TCP fast open.

           Only available with Linux kernel > 3.7.0.

           Enable port reuse.

           Only available with Linux kernel > 3.9.0.

       --acl <acl_config>
           Enable ACL (Access Control List) and specify config file.

       --mtu <MTU>
           Specify the MTU of your network interface.

           Enable Multipath TCP.

           Only available with MPTCP enabled Linux kernel.

           Enable TCP_NODELAY.

       --plugin <plugin_name>
           Enable SIP003 plugin. (Experimental)

       --plugin-opts <plugin_options>
           Set SIP003 plugin options. (Experimental)

           Enable verbose mode.

           Print help message.


       ss-local(1) can be started from command line and run in foreground. Here is an example:

           # Start ss-local with given parameters
           ss-local -s -p 12345 -l 1080 -k foobar -m aes-256-cfb


       ss-server(1), ss-tunnel(1), ss-redir(1), ss-manager(1), shadowsocks-libev(8), iptables(8),