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cPanel 68: TLS Changes

Discussion in 'Security' started by linux4me2, Nov 1, 2017.

  1. linux4me2

    linux4me2 Well-Known Member

    Aug 21, 2015
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    According to the cPanel 68 Release Notes regarding TLS Changes, when you upgrade your system from cPanel & WHM version 66 to cPanel & WHM version 68, your system's cipher suite settings and security protocol settings will not change. You have to reset your current systems' configuration settings and security protocol settings in order to apply the new default settings.

    I want to make sure my server is as secure as it can be, so I'd like to make sure I'm using the new defaults as long as that won't break anything. I've looked through the How To Adjust Cipher Protocols article, and checked the current settings in the various WHM UIs, it looks like it's a simple matter of switching to the defaults for Apache and Exim, but it's not clear what to pick for cPanel WebServices and Dovecot because they don't list the defaults.

    I can copy the current cipher string over from the article above for both Dovecot and cPanel WebServices, but what should be used for the SSL Protocols in Dovecot and the TLS/SSL Protocols in cPanel WebServices?

    Currently, Dovecot has:
    TLSv1 TLSv1.1 TLSv1.2
    And cPanel WebServices has:
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Apr 11, 2011
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    Here are the default values as of cPanel version 68:

    Web Services > SSLv23:!SSLv2:!SSLv3
    Dovecot > TLSv1 TLSv1.1 TLSv1.2

    This matches what's already configured on your system.

    Thank you.
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    linux4me2 likes this.

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