NODE c46686e8Barring access to Netscape
"Ed Carp" <ecarp@netcom.com>Sun, 3 Dec 1995 00:24:34 +0800
If you want to bar access to your site from a Netscape browser, such
can easily be accomplished. If memory serves, every browser, when
connecting to a site, exchanges certain information about the client
with the server. One can gain access easily to that information.
I believe that Netscape uses "Mozilla" as their keyword when
exchanging browser-specific information.
NODE ef3ca852Re: Barring access to Netscape
Simon Spero <ses@tipper.oit.unc.edu>Fri, 1 Dec 1995 16:59:25 +0800
On Fri, 1 Dec 1995, Ed Carp wrote:
> I believe that Netscape uses "Mozilla" as their keyword when
> exchanging browser-specific information.
The field is User-Agent. However, blocking access to users of Navigator
isn't a particularly useful thing to do. If you must do something, why
not modify your GET handler to add a header to the start of all html
pages informing people of the problem, and suggesting alternatives.
Someone else [I can't remember, but I'll call them Alice] claimed that the
security problems showing up were part of a deliberate conspiracy. To
anyone who knows anything about the history of these things knows how
absurd this is. The principals at Netscape are a nice bunch of really
guys, but were not really up to speed on issues like security and
networking- for example, the first incarnation of SSL had an RC4 stream
running with no checksumming whatsoever. The security problems that
resulted are due to the learning curve.
Simon
NODE 47da9e93Re: Barring access to Netscape
sameer <sameer@c2.org>Sat, 2 Dec 1995 02:56:00 +0800
> The field is User-Agent. However, blocking access to users of Navigator
> isn't a particularly useful thing to do. If you must do something, why
> not modify your GET handler to add a header to the start of all html
> pages informing people of the problem, and suggesting alternatives.
I haven't modified my GET, but at the top of all the standard
c2.org web pages (http://www.c2.org/) if you are using pre-1.12
netscape, it barfs at you with a nasty message. I plan on adding a
line for all netscape browsers, with a link to Lance's page, once it
is ready. (Maybe it is ready now, I just haven't looked yet.)
>
> Someone else [I can't remember, but I'll call them Alice] claimed that the
> security problems showing up were part of a deliberate conspiracy. To
> anyone who knows anything about the history of these things knows how
> absurd this is. The principals at Netscape are a nice bunch of really
> guys, but were not really up to speed on issues like security and
> networking- for example, the first incarnation of SSL had an RC4 stream
> running with no checksumming whatsoever. The security problems that
> resulted are due to the learning curve.
>
> Simon
>
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NODE d04ed060Barring access to Netscape, a step better
Laszlo Vecsey <master@internexus.net>Sat, 2 Dec 1995 08:07:50 +0800
> The field is User-Agent. However, blocking access to users of Navigator
> isn't a particularly useful thing to do. If you must do something, why
> not modify your GET handler to add a header to the start of all html
> pages informing people of the problem, and suggesting alternatives.
Great idea! I'm sure there is a cyberpunk on this list willing to write a
patch to NCSA HTTPd to get the job done, in a configurable manor of
course so that a template.html would be 'inserted' at the top of every
document sent out to the specified browser. Any takers?