using proxy on linux

Linux/proxy/index.md

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+# proxy 
+## install shadowsocks client
+```
+sudo apt-get install software-properties-common -y
+sudo add-apt-repository ppa:max-c-lv/shadowsocks-libev -y
+sudo apt-get update
+sudo apt install shadowsocks-libev
+```
+## start socks proxy
+```
+ss-local -s 服务器地址 -p 服务器端口 -l 本地端端口 -k 密码 -m 加密方法
+```
+
+## set proxy
+
+```
+alias setproxy="export ALL_PROXY=socks5://127.0.0.1:1080"
+alias unsetproxy="unset ALL_PROXY"
+alias myip="curl https://ipinfo.io/ip"
+```
+add alias to your profile `.zshrc ` or `.bashrc`
+
+## set apt proxy
+### install polipo
+```
+sudo apt-get update
+sudo apt-get install polipo
+```
+### config polipo
+`vi /etc/polipo/config`
+```
+logSyslog = true
+logFile = /var/log/polipo/polipo.log
+proxyAddress = "0.0.0.0"
+proxyPort = 8123
+socksParentProxy = "127.0.0.1:1080"
+socksProxyType = socks5
+```
+### restart polipo
+` /etc/init.d/polipo restart`
+### test connection
+`curl -x 127.0.0.1:8123  ip.gs `
+### change apt config
+`vi /etc/apt/apt.conf`
+add `Acquire::http::Proxy "http://127.0.0.1:8123";`