NetTalk Central

NetTalk Web Server => Web Server - Ask For Help => Topic started by: CaseyR on April 24, 2013, 03:17:18 PM

Title: SSL works in Firefox but not in IE
Post by: CaseyR on April 24, 2013, 03:17:18 PM

Hi,

An IE 8 user was not able to connect using SSL.    I confirmed the problem in the Basic SSL example (6).    With Firefox,  the certificate acceptance procedure fires as expected, but IE just stalls at 'Connecting'.   I am told the same thing happens with Chrome but I haven't checked.   

If any one has any suggestions,  they would be greatly appreciated.

Using NT 7.07

Thanks

Title: Re: SSL works in Firefox but not in IE
Post by: Bruce on April 24, 2013, 10:10:38 PM

There was a long topic on this years ago. From memory it had to do with the default ciphers your NetTalk app accepts (ie strong ones) and the ciphers available to _some_ IE8 installs (ie weak ones.)

There is some good background on Ciphers and SSL levels here;
http://www.nettalkcentral.com/index.php?option=com_smf&Itemid=36&topic=1023.0

That said, obviously most IE8 installs are working fine at the default levels, so you may want to run some of the command-line options on the customer's machine to determine why their IE is blocking your site. Or perhaps jsut check their "zone" settings to see what they've done.

If anyone else remembers more, please chime in.

Cheers
Bruce

Title: Re: SSL works in Firefox but not in IE
Post by: Larry Sand on April 25, 2013, 02:29:13 AM

If you uncheck "Use SSL 2.0" and have "Use SSL 3.0" checked in IE's internet options, I think you'll find it connects.  NetTalk uses SSLv3 by default.

Larry Sand

Title: Re: SSL works in Firefox but not in IE
Post by: CaseyR on April 25, 2013, 07:36:45 AM

Thanks, Larry

Both SSL 2,0 and SSL 3.0 were turned on.  Once I turned 2.0 off it worked fine.