Re: [squid-users] interface between squid and external DNSSERVER

Hi, Henrik

Thanks for yr reply. Explaination sounds really good. I want squid to
look at my /etc/hosts file, before sendint query to DNS server.
I am running squid 2.4.STABLE4 with --disable-internal-dns option.

As squid user, I know squid 2.5 does support /etc/host lookup with
internal dns support. I told my team. They are not ready to put
PRE release in production,as we know PREs are pretty stable.

That's the base of all the problems.

When it's gonna be STABLE release ?

Thanks
Jigar

Henrik Nordstrom wrote:
>
> It is a very simple request->response based interface, only having one
> query at a time per dnsserver process..
>
> Anything received which is a IP address is assumed to be a request for a
> reverse lookup from IP, else it is assumed to be a forward lookup based
> on the hostname. Result is one of
>
> The lookup failed
> "$fail <a descriptive error message>"
>
> Result of a reverse lookup
> "$name <ttl> <hostname>"
>
> Result of a normal lookup
> "$addr <ttl> <ip1> <ip2>..."
>
> There is also a couple of magic "commands"
> $hello, results in $alive being returned
> $shutdown, tells the helper to exit cleanly
>
> As you can see the protocol does only support one query at a time, so
> replacing dnsserver by a multithreaded one won't do much good as Squid
> can only send one query at a time to each helper..
>
> The internal DNS client does not share these limitations in concurrency,
> and can manage a "unlimited" amount of concurrent DNS lookups.
>
> Regards
> Henrik
>
> Jigar Rasalawala wrote:
> >
> > Hi, guys
> >
> > I am running Squid 2.4.STABLE4 on RedHat 7.1. I compiled my squid with
> > --disable-internal-dns option.
> > I want to use my own multi-threaded DNS server program instaed of
> > DNSSERVER helper.
> >
> > How can I find documentation about interface the way squid and DNSSERVER
> > talks to each other ??
> >
> > Any help or suggestion appriciated..
> >
> > Thanks
> > Jigar
Received on Tue Sep 10 2002 - 16:45:24 MDT