I am in corporate network where is strict proxy configured. Only http/https traffic is allowed. But I need to upload some data / manage external server with putty/winscp.
I tried to setup HTTP proxy in putty configuration. I set proxy type (HTTP), hostname and port only, other values are default including proxy command (connect %host %port\n). When I open the connection, proxy return 403 forbidden.
What can I do? Is there any chance to bypass it? Is it possible with putty? I have linux machine in internet, can I install something on it? Thanks.