All things about proxy

Protected by the great Chinese Firewall, I feel my mind is as pure as the WhiteSnow. But living in this mighty country as a software engineer, one thing is particularly painful: we have to be the Kung Fu Panda to jump over the wall to google and download things.

I experienced this pain vividly a few weeks ago when I had to re-install a computer, so I decided to write all the “jumping over wall” techniques down.

 

 git

BTW, when installing git, choose Run Git from the Windows Command Prompt.

 

git proxies are configured in C:\Users\ME\.gitconfig.

[https]

      proxy = PROXY

      sslverify = false

[http]

      sslverify = false

      proxy = PROXY

[url "https://"]

      insteadOf = git://

[url "https://github.com"]

        insteadOf = git://github.com             

 

npm

npm proxy needs to be setup in C:\Users\ME\.npmrc. Note, you can’t right click and create a file whose name starts with “.”. You can however create a blank file in your editor and save it as “.npmrc”.

strict-ssl=false

proxy=PROXY

https-proxy=PROXY

 

Vagrant

To be able to download boxes, I need to setup proxy environment variables in my windows machine:

HTTP_PROXY=PROXY

HTTPS_PROXY=PROXY

To enable VMs created by Vagant to be able to download things, I need to setup proxies for VMs as well, to do so, first I need to install a plugin for Vagant:

vagrant plugin install vagrant-proxyconf

Then I can setup proxies for VMs in Vagrantfile:

 if Vagrant.has_plugin?("vagrant-proxyconf")

            config.proxy.http = PROXY

            config.proxy.https = PROXY         

            config.proxy.ftp = PROXY           

            config.proxy.no_proxy  = "localhost,127.0.0.1,192.168.33.10"

end

One thing to note is that no_proxy should contain either domains or exact ip address. Wildcard ip addresses do not work, e.g. 192.168.33.* doesn’t work. See http://unix.stackexchange.com/questions/23452/set-a-network-range-in-the-no-proxy-environment-variable.

 

curl

curl will respect https_proxy, http_proxy, no_proxy environment variables (as configured by Vagrant above, for example). If you want curl to bypass proxy for certain url, include the domain or ip address in no_proxy.

You can also use --noproxy to bypass proxies.  

curl  -v --noproxy '*' -XGET "192.168.33.15:9200"

 

cygwin

This concerns install Cygwin. Follow the wizard step by step, and upon the following step, choose option 2:

This is actually very weird, I do not have proxy setup in IE, so the second option should be equal to first, but using the first or the third option, I simply can’t access any mirror site. Weird!

MVN

Edit .m2/settings.xml. If settings.xml is missing, download a default one from https://raw.githubusercontent.com/apache/maven/master/apache-maven/src/conf/settings.xml, and put it there.

On the proxies paragraph, add proxy:
<settings>

  <proxies>

     <proxy>

      <id>office</id>

      <active>true</active>

      <protocol>http</protocol>    

      <host>PROXY</host>

      <port>PROXY_PORT</port>

      <nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>

    </proxy>

  </proxies>
</settings>