Basic auth via HMAC signatures for Squid
github.comSame for HAProxy as pure config directives without Lua: https://gist.github.com/Snawoot/a8019c7f200245627036d49e87a6...
Same for HAProxy as pure config directives without Lua: https://gist.github.com/Snawoot/a8019c7f200245627036d49e87a6...