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ssh利用端口转发实现SOCKS5代理

现在linux下ssh使用比较广泛的是openssh包

ssh相关选项:

-V
显示版本: ssh -V OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014

-f
输入密码后进入后台模式(Requests ssh to go to background just before command execution.)

-N
不执行远程命令,用于端口转发( Do not execute a remote command. This is useful for just for warding ports (protocol version 2 only).)

-D
socket5代理(Specifies a local "dynamic" application-level port forwarding.Currently the SOCKS4 and SOCKS5 protocols are supported, and ssh will act as a SOCKS server.)

-L
tcp转发(Specifies that the given port on the local (client) host is to be forwarded to the given host and port on the remote side.)

-C
使用数据压缩,网速快时会影响速度(Compression is desirable on modem lines and other slow connections, but will only slow down things on fast networks.The compression algorithm is the same used by gzip)

建立SOCKS5代理:

ssh -f -N -D bindaddress:port name@server

bindaddress: 指定绑定ip地址

port: 指定侦听端口

name: ssh服务器登录名

server: ssh服务器地址

例: ssh -f -N -D 127.0.0.1:1080 xiaomi@158.211.221.121
这样就建立SOCKS5代理。

使用SOCKS5代理

例:

chrome: chrome需要使用命令指定SOCKS5代理:
google-chrome --proxy-server="socks://127.0.0.1:1080"

firefox:
在preferences=>advanced=>Network->connection->Settings里,勾选Manual proxy configuration,并将其它项清空,SOCKS Host设置为127.0.0.1,port设置为1080, 并勾选Remote DNS(勾选后可防止本地DNS污染),如图。

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