If you try to connect with Centos 6 to an iDRAC5 you probably get this message:
Error when reading from SSL socket connection
The iDrac 5 ( PE 1900, PE 2900, … ) uses SSLv3 which is disabled in Java-6 and Java-7.
To correct this, edit
(note – depending on the version of java you have installed the exact directory may change)
and find the line
jdk.tls.disabledAlgorithms=SSLv3, DH keySize < 768
and remove “SSLv3,” Save the changes and restart your web browser