[squid-users] Can SQUID change the destination address from ip to hostname?

[Foxy Lady]

Thanks, i'll try.
Better will be to make Squid listen also to a SOCKS5 port. I know there was a project years ago, seems to be broken and never implemented.

The real problem is that all proxifiers tools use ip:port as destination at first instance (redsocks, ts-warp, for example).

Inviato con l'email sicura Proton Mail.

mercoledì 5 febbraio 2025 11:01, Matus UHLAR - fantomas <uhlar at fantomas.sk> ha scritto:

> On 04.02.25 21:22, Foxy Lady wrote:
> 
> > I try again asking the ML if
> > 
> > - can Squid change the destination address of a call?
> > 
> > I mean, something like
> > 
> > <url_rewrite_command> $destination $Host
> > 
> > original $destination is 104.26.9.59:443
> > $Host is the original HTTP Header "Host: xxxxx" alias "api.myip.com:443"
> > 
> > So, a call to
> > https://104.26.9.59:443/test
> > will become
> > https://api.myip.com:443/test
> 
> 
> Hello,
> 
> I guess that the URL redirector could do that.
> http://www.squid-cache.org/Doc/config/url_rewrite_program/
> 
> Note that it's extremely unreliable, because IP=>hostname mapping is a wild
> 
> guess, because after client asks for IP address, you don't really know what
> hostname they want.
> So my recommendation is: don't do that.
> 
> Note that SOCKS5 protocol supports DNS resolution at server level
> 
> > martedì 4 febbraio 2025 06:17, Foxy Lady Foxy_Lady_1966 at proton.me ha scritto:
> > 
> > > Hi again.
> > > I finally found a tool (great tool, "GO Simple Tunnel") which can serves both HTTP(S)/SOCKS5 Proxy with dns resolution, so chaining it in the middle of Squid, Squid receives the destination in format of "domain.fqdn" and not ip "x.x.x.x",
> > > 
> > > TCP_TUNNEL/200 4118 CONNECT api.myip.com:443 username HIER_DIRECT/104.26.9.59 - "Go-http-client/1.1" [User-Agent: Go-http-client/1.1\r\nProxy-Authorization: Basic bWFyY286dHIwdHQwbGE=\r\nProxy-Connection: keep-alive\r\nHost: api.myip.com:443\r\n] [HTTP/1.1 200 Connection established\r\n\r\n]
> > > 
> > > 👍👍👍
> > > 
> > > Inviato con l'email sicura Proton Mail.
> > > 
> > > lunedì 3 febbraio 2025 22:22, Foxy Lady Foxy_Lady_1966 at proton.me ha scritto:
> > > 
> > > > Sorry, resend the post in txt and correct some parts.
> > > > The question is: can i force SQUID to do a reverse dns lookup and maintain the Host Header inside (where's a ptr record is found), also if i can't find a ptr record? SOCKS5 works with 1st level tcp, so send ip addresses, i need some tool, or Squid workaround, which can force a reverse dns. I know, it's quite impossible if a ptr record is not found in dnses, but... i try..
> > > > 
> > > > ----------
> > > > 
> > > > Hi all.
> > > > As in subject.
> > > > SQUID server has its own dns resolver.
> > > > 
> > > > Can SQUID change the destination address from ip to hostname?
> > > > 
> > > > CLIENT > SQUID > DESTINATION
> > > > 
> > > > 192.168.178.2 TCP_TUNNEL/200 4120 CONNECT api.myip.com:443 - HIER_DIRECT/104.26.8.59
> > > > 
> > > > CLIENT > SOCKS5 PROXY > SQUID > DESTINATION
> > > > 
> > > > 192.168.178.50 TCP_TUNNEL/200 4126 CONNECT 104.26.9.59:443 - HIER_DIRECT/104.26.9.59
> > > > 
> > > > I would need,
> > > > 
> > > > CLIENT > SOCKS5 PROXY > SQUID > DESTINATION
> > > > 
> > > > 192.168.178.50 TCP_TUNNEL/200 4126 CONNECT api.myip.com:443 - HIER_DIRECT/104.26.9.59
> 
> 
> --
> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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