# Download corkscrew. It is easy tool for tunneling SSH through HTTP proxies
# Extract corkscrew then configure and install it
tar -xzvf corkscrew.tar.gz# Create ~/.ssh/proxyauth file and set authentication for http proxy server
username:password# Open ~/.ssh/config file. Add proxy server ip address and its authentication in proxyauth file like this:
Host *# Try to access your server via ssh
ProxyCommand corkscrew proxy_ip_address proxy_port %h %p ~/.ssh/proxyauth
ssh firstname.lastname@example.orgAnd it's all done. Enjoy!