Hello,
The recent update of openssl update of last week needs the newer 
libgcrypt that is in Scientific Linux 5.4.  Otherwise some programs will 
not be able to connect to https sites.
This only affects SL 5.0 - SL 5.3.

To test if this is broken or working for you, try to connect to a https 
web site using lftp.  Here is an example

   lftp https://www.scientificlinux.org/

If this test doesn't work for you, update you libgcrypt, as shown below, 
and try again.  You do not need to reboot.

If everything goes well, this newer libgcrypt will go into the security 
errata for SL 50, 51, 52, and 53, tomorrow.

To test

SL5
-------
       yum --enablerepo=sl-testing update libgcrypt\*

or you can download rpm's by hand at

http://ftp.scientificlinux.org/linux/scientific/5rolling/testing/i386/libgcrypt/
libgcrypt-1.4.4-5.el5.i386.rpm
libgcrypt-devel-1.4.4-5.el5.i386.rpm

http://ftp.scientificlinux.org/linux/scientific/5rolling/testing/x86_64/libgcrypt/
libgcrypt-1.4.4-5.el5.i386.rpm
libgcrypt-1.4.4-5.el5.x86_64.rpm
libgcrypt-devel-1.4.4-5.el5.i386.rpm
libgcrypt-devel-1.4.4-5.el5.x86_64.rpm

Thanks
Troy Dawson
--
__________________________________________________
Troy Dawson  [log in to unmask]  (630)840-6468
Fermilab  ComputingDivision/LCSI/CSI DSS Group
__________________________________________________