Allow specifying dns names as proxy hosts

[crass]

I realize this was disabled in a previous issue. However, there are plenty of cases where dns names can be allowed. For instance, when proxy_dns is off. Perhaps there should be a new option proxy_proxy_dns which should take a parameter, one of: force, disallow, if_possible.

• force - ensures that no dns requests are leaked.
• disallow - all dns is done locally
• if_possible - resolve remotely if possible, otherwise do it locally.

Note that if proxy_proxy_dns = force could still allow proxies to be specified as DNS names by proxying the dns through the partially created proxy chain.

[rofl0r]

imo that's too much hassle for little gain - if someone doesnt know the ip of his proxy he can look it up via hosts or proxyresolv (with a temporary tor config or similar).
i'm not even sure if it is still possible to turn off proxy_dns...

[muelli]

It's easy to resolve the name to an IP address. But that address might change. But the name, e.g. proxy.acme.corp will very likely stay the same.

Also, I'm trying to use proxychains behind a corporate proxy which requires authentication, because some software I want to provision does not deal well with such proxies. Hence, I am trying to install proxychains. And I'm using ansible for provisioning. Ansible, however, does not resolve hostnames and it seems much easier to make proxychains accept a hostname instead of making Ansible do something totally unrelated to its purpose.

[ajthemacboy]

I'd really like this ability as well. Say I want to use a proxy, say the PIA proxy proxy-nl.privateinternetaccess.com, but I don't want to manually specify each IP from nslookup.

[rofl0r]

yeah, you don't want to manually specify ips and i don't want to code the feature you want.