I run a proxy inside a KVM machine that has access to the network I
need. The KVM gateway IP is 192.168.122.1, so inside the VM, I write
the following ~/.tinyproxy.conf:
Port 8899
Timeout 600
Allow 127.0.0.1
Allow 192.168.122.1
The proxy is available in most repos, on Debian, I wrote the following to install it:
# apt-get install tinyproxy
Then, I start it with (the -d puts it in the foreground, in debug
mode):
$ tinyproxy -c .tinyproxy.conf -d
That's it. From my main machine, I can now use proxy:8899 as my
HTTPS proxy, e.g.:
$ curl -x proxy:8899 https://some.network.com/ice.cream
