Install corkscrew on MacOSX

With corkscrew you can tunnel ssh through a proxyserver. You could get it through Darwin Ports but I like compiling from source better. That way you always have the latest versions. First get the sources [here].
 
Please note that you need the gcc compiler for MacOSX which is included in XCode. You can download it for free from Apple but you need to setup a developer account.

If you then unzip the corkscrew tarball, change to its directory and try to compile corkscrew on MacOSX with /.configure, you might get your first error.
 

configure: error: can not guess host type; you must specify one

To avoid above error message during configuration you can use
 

autoconf

Autoconf will determines useful data for the configure script on newer or unknown systems and is part of the GNU buildsystem. Wikipedia (2009) states the latter is also known as Autotools and is used in making source-code packages portable to Unix-like systems.

After running the configure script again you most likely will get the next error:
 

configure: error: cannot guess build type; you must specify one

In above case you must define your platform. If you are using an Intel i3/i5/i7 Mac you should be fine with:
 

./configure --build=i686-apple

After finishing the installation with make && sudo make install you can use corkscrew together with ssh. Simply create this file ~/.ssh/config with the following two lines:
 

Host * ProxyCommand corkscrew http-proxy.example.com 8080 %h %p

%h and %p are variables to be used by ssh to fill in the actual host and port you want to connect to. Just use the usual ssh syntax and ssh will connect via the corkscrew proxy.
 

ssh user@hostname

View the original article here