On 13.01.26 01:37, archer wrote:
DST is not recommended by me, because it brings up DNS queries.

That's exactly what I have said.

DST is an IP(s)-based ACL, which might have to resolve DNS FQDN to IP before it 
is able to determine whether the requested domain name matches the DST ACL .

I know. Can you post your squid.conf or should we continue guessing?

On 10.01.26 06:19, archer wrote:
Greetings from Beijing. When it comes to the location, you know our security 
concerns.
I managed to implement the following bluemaps:

*       acl extranet                    dstdomain “domain list A”
*       acl extranet_whitelist          dstdomain “domain list B”

So, what can I do to have extranet DNS handled by the parent proxy, while leaving the remainder to the child proxy, with a domain list ?

On Jan 12, 2026, at 4:33 PM, Matus UHLAR - fantomas <[email protected]> wrote:
You can use "dstdomain -n" to disable DNS translation here.
I recommend doing that.

On 13.01.26 01:18, archer wrote:
In my config, it is “dstdomain -n” already. Anyway it is not functional, whether there is a “-n “ tag . I have dig official conf reference, and lots mail archives. Believe me, I would not make easy mistakes. Anyway I am not capable of reviewing squid source code, dunno whether it is a designed logic or a bug. If it is not expectable, I might have to select another child proxy program.

On Jan 13, 2026, at 1:26 AM, Matus UHLAR - fantomas <[email protected]> wrote: there may be different directive(s) that require DNS lookup, e.g. "dst" directives.

but if your ISP intercepts and modifies DNS, I recommend using DNS server supporting DoH, DoT or supporting validation, if you are unable to switch ISPs or ask them not to do that.

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Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/
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