All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Taylor, Grant" <gtaylor@riverviewtech.net>
To: netfilter@lists.netfilter.org
Subject: Re: NAT to a client
Date: Thu, 28 Apr 2005 14:28:41 -0500	[thread overview]
Message-ID: <42713969.2000609@riverviewtech.net> (raw)
In-Reply-To: <20050428173838.GA30382@bender.817west.com>

> client connects to squid, squid connects to web server; two separate
> unrelated connections (besides the fact that 1 inspires 2).  i
> understand that the number 3128 falls within the range 1024 - 65535; and
> if squid is configured to bind only to the internal interface, you'd
> have a 1/64511 chance of seeing a squid server use sport = 3128 and
> dport = 80 to fetch content from an origin web server, but it's not
> likely enough to deserve a dedicated filter rule, IMHO.

*nod*

I was very aware and would expect that the there were two distinctly different TCP connections, even though the 2nd one is caused by the 1st one.  What I was not aware of is if Squid would send traffic to web servers from a known port and thus would be able to filter based on that.  I can't say as I'm surprised or disappointed by that fact.



Grant. . . .


      reply	other threads:[~2005-04-28 19:28 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-28  6:22 NAT to a client varun_saa
2005-04-28 14:35 ` Jason Opperisano
2005-04-28 17:21   ` Taylor, Grant
2005-04-28 17:38     ` Jason Opperisano
2005-04-28 19:28       ` Taylor, Grant [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=42713969.2000609@riverviewtech.net \
    --to=gtaylor@riverviewtech.net \
    --cc=netfilter@lists.netfilter.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.