Re: [users@httpd] Can't view SSL-enabled pages using Firefox

[Sander Temme]

On Jun 14, 2007, at 7:21 AM, Salcedo, Simon wrote:

Yes, I understand what I am requested to do.

S.

You also haven't volunteered your configuration, so we're kind of shooting in the dark. The cipher mismatch error message suggests that you have customized that setting (SSLCipherSuite) so that no overlap exists between the list of ciphersuites the client offers and the list the server is prepared to accept, which means they can't find common ground for communication. In your Firefox browser, type about:config in the Location bar and filter for security.ssl. By default, only the security.ssl3.rsa_null_md5 and security.ssl.rsa_null_sha entries are turned off (false) for obvious reasons. Make sure that Firefox and your server share at least one common ciphersuite. If you take a sniff of your connections with Wireshark (Ethereal), you can see the SSL negotiation happen in even more detail than the Apache log. It'll show you the list of ciphersuites offered in the ClientHello message, and which one the server ends up picking in the subsequent ServerHello.

Regards,

Simon

-----Original Message-----
From: Boyle Owen [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 14, 2007 8:27 AM
To: users@httpd.apache.org
Subject: RE: [EMAIL PROTECTED] Can't view SSL-enabled pages using Firefox

-----Original Message-----
From: Salcedo, Simon [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 14, 2007 3:12 PM
To: users@httpd.apache.org
Subject: RE: [EMAIL PROTECTED] Can't view SSL-enabled pages using Firefox

OK.  I will do what Graeme and Sander suggest, but I am not sure why
this will help solve the problem.  As many of you have pointed out,
SSL-enabling a site usually does not cause any browsing problems when
using Firefox.

to use (the cipher is the set of algorithms to use when encrypting the

cipher suite) and so can reach agreement pretty quickly. It looks like
your server and browser have particularly restricted cipher suites so
cannot find a match and so can't communicate.


since this allows a wide range of ciphers, there's a good chance the
browser will be able to match it.

Rgds,
Owen Boyle
Disclaimer: Any disclaimer attached to this message may be ignored.

Do you understand what you are being asked to do? At the start of an SSL session, the browser and server negotiate to decide what type of cipher data). Normally, both sides have a wide range of ciphers installed (the Commenting out the directive will allow the default setting to apply and

Another reason is that I searched the Internet (google search on the
error message I am seeing) and some sites suggest that my new
server may
not have all the crypto libraries installed.  I am running Apache on
Solaris.

Regards,

Simon

-----Original Message-----
From: Graeme Fowler [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 14, 2007 7:47 AM
To: users@httpd.apache.org
Subject: RE: [EMAIL PROTECTED] Can't view SSL-enabled pages using Firefox

On Thu, 2007-06-14 at 07:09 -0500, Salcedo, Simon wrote:

I disagree that the problem lies on the Client side because I have

been

to sites that have identical certificates as I was using and still
browse those sites.  I tend to believe that the problem is on the

server

side.

Which is why Sander offered you a server-side solution:

http://httpd.apache.org/docs/2.2/mod/mod_ssl.html#sslciphersuite

Make Apache offer its' standard CipherSuites, and then work
towards the

that the client only supports a limited subset of ciphers.

Graeme


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Sander Temme
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