bypass proxy server

bypass multiple proxy.

network admin sometimes install double proxy server on your network, they make parent proxy and child proxy. when you under 2 or more proxy servers, you need additional tool to bypass it. I will show you how to use proxytunnel under ssh.

install proxytunnel ubuntu 13.10

sudo apt-get install libssl-dev proxytunnel 

proxytunnel -v -p yourproxyserver:80 -d destination_server:22 -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)"
proxytunnel -v -E -p yourserver:443 -d destination_server:22 -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)" 

proxytunnel ssh

if you use proxytunnel with ssh, you can put proxytunnel command on .ssh/config as below :

ProxyCommand /usr/bin/proxytunnel -v -p 114.121.192.38:80 -d %h:%p -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)\n"

if multiple proxy above your connection, you can use -r option as below

ProxyCommand /usr/bin/proxytunnel -v -p 10.1.10.16:8080 -r second_proxy.com:22 -d %h:%p -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)\n" 

or you want  to use it directly with ssh, you can use as this :

ssh -o 'ProxyCommand http-proxy-tunnel.py . "http://%h" "localhost:%p"' -o 'ProtocolKeepAlives 5' 

alternatives proxytunnel 

the most same with proxytunnel is corkscrew, moreover the command for .ssh/config is same

ProxyCommand corkscrew 31.13.68.8 80 %h %p

note :
this tool is use on http-tunneling. more about corkscrew you can see here

..show all:.

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bypass multiple proxy.

network admin sometimes install double proxy server on your network, they make parent proxy and child proxy. when you under 2 or more proxy servers, you need additional tool to bypass it. I will show you how to use proxytunnel under ssh.

install proxytunnel ubuntu 13.10

sudo apt-get install libssl-dev proxytunnel 

proxytunnel -v -p yourproxyserver:80 -d destination_server:22 -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)"
proxytunnel -v -E -p yourserver:443 -d destination_server:22 -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)" 

proxytunnel ssh

if you use proxytunnel with ssh, you can put proxytunnel command on .ssh/config as below :

ProxyCommand /usr/bin/proxytunnel -v -p 114.121.192.38:80 -d %h:%p -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)\n"

if multiple proxy above your connection, you can use -r option as below

ProxyCommand /usr/bin/proxytunnel -v -p 10.1.10.16:8080 -r second_proxy.com:22 -d %h:%p -H "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)\n" 

or you want  to use it directly with ssh, you can use as this :

ssh -o 'ProxyCommand http-proxy-tunnel.py . "http://%h" "localhost:%p"' -o 'ProtocolKeepAlives 5' 

alternatives proxytunnel 

the most same with proxytunnel is corkscrew, moreover the command for .ssh/config is same

ProxyCommand corkscrew 31.13.68.8 80 %h %p

note :
this tool is use on http-tunneling. more about corkscrew you can see here