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176 lines
4.5 KiB
176 lines
4.5 KiB
ss-redir(1)
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===========
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NAME
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----
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ss-redir - shadowsocks client as transparent proxy, libev port
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SYNOPSIS
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--------
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*ss-redir*
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[-uUv6] [-h|--help]
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[-s <server_host>] [-p <server_port>] [-l <local_port>]
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[-k <password>] [-m <encrypt_method>] [-f <pid_file>]
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[-t <timeout>] [-c <config_file>] [-b <local_address>]
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[-a <user_name>] [-n <nofile>] [--mtu <MTU>] [--no-delay]
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[--plugin <plugin_name>] [--plugin-opts <plugin_options>]
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[--password <password>] [--key <key_in_base64>]
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DESCRIPTION
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-----------
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*Shadowsocks-libev* is a lightweight and secure socks5 proxy.
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It is a port of the original shadowsocks created by clowwindy.
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*Shadowsocks-libev* is written in pure C and takes advantage of libev to
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achieve both high performance and low resource consumption.
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*Shadowsocks-libev* consists of five components.
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`ss-redir`(1) works as a transparent proxy on local machines to proxy TCP
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traffic and requires netfilter's NAT module.
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For more information, check out `shadowsocks-libev`(8) and the following
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'EXAMPLE' section.
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OPTIONS
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-------
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-s <server_host>::
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Set the server's hostname or IP.
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-p <server_port>::
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Set the server's port number.
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-l <local_port>::
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Set the local port number.
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-k <password>::
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--password <password>::
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Set the password. The server and the client should use the same password.
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--key <key_in_base64>::
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Set the key directly. The key should be encoded with URL-safe Base64.
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-m <encrypt_method>::
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Set the cipher.
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+
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*Shadowsocks-libev* accepts 18 different ciphers:
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+
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aes-128-gcm, aes-192-gcm, aes-256-gcm,
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rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb,
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aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb,
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camellia-128-cfb, camellia-192-cfb, camellia-256-cfb,
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chacha20-ietf-poly1305, salsa20, chacha20 and chacha20-ietf.
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+
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The default cipher is 'rc4-md5'.
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+
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If built with PolarSSL or custom OpenSSL libraries, some of
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these ciphers may not work.
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-a <user_name>::
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Run as a specific user.
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-f <pid_file>::
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Start shadowsocks as a daemon with specific pid file.
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-t <timeout>::
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Set the socket timeout in seconds. The default value is 60.
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-c <config_file>::
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Use a configuration file.
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+
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Refer to `shadowsocks-libev`(8) 'CONFIG FILE' section for more details.
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-n <number>::
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Specify max number of open files.
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+
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Only available on Linux.
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-b <local_address>::
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Specify local address to bind.
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-u::
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Enable UDP relay.
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+
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TPROXY is required in redir mode. You may need root permission.
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-U::
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Enable UDP relay and disable TCP relay.
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-6::
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Resovle hostname to IPv6 address first.
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--mtu <MTU>::
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Specify the MTU of your network interface.
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--mptcp::
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Enable Multipath TCP.
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+
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Only available with MPTCP enabled Linux kernel.
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--reuse-port::
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Enable port reuse.
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+
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Only available with Linux kernel > 3.9.0.
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--no-delay::
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Enable TCP_NODELAY.
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--plugin <plugin_name>::
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Enable SIP003 plugin. (Experimental)
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--plugin-opts <plugin_options>::
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Set SIP003 plugin options. (Experimental)
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-v::
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Enable verbose mode.
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-h|--help::
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Print help message.
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EXAMPLE
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-------
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ss-redir requires netfilter's NAT function. Here is an example:
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....
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# Create new chain
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iptables -t nat -N SHADOWSOCKS
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iptables -t mangle -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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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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iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN
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iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN
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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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iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345
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# Add any UDP rules
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ip route add local default dev lo table 100
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ip rule add fwmark 1 lookup 100
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iptables -t mangle -A SHADOWSOCKS -p udp --dport 53 -j TPROXY --on-port 12345 --tproxy-mark 0x01/0x01
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# Apply the rules
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iptables -t nat -A PREROUTING -p tcp -j SHADOWSOCKS
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iptables -t mangle -A PREROUTING -j SHADOWSOCKS
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# Start the shadowsocks-redir
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ss-redir -u -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid
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....
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SEE ALSO
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--------
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`ss-local`(1),
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`ss-server`(1),
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`ss-tunnel`(1),
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`ss-manager`(1),
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`shadowsocks-libev`(8),
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`iptables`(8),
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/etc/shadowsocks-libev/config.json
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