August 16, 2016

How to upgrade RHEL 5.5 to RHEL 6/7?

I am new to Linux and i have to upgrade my product servers to RHEL6/7. Current Linux version in production is RHEL 5.5 (Tikanga). Can some one suggest me which version to upgrade 6 OR 7? and will it be possible to upgrade from 5.5 to 6/7?
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Thanks in advance

Regards,
Vijay

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