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cPanel disable Cipher Suites

Discussion in 'Security' started by ca2236, Jun 22, 2018.

  1. ca2236

    ca2236 Well-Known Member

    Feb 2, 2018
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    I found various posts and pages around the net on disabling cipher suites, however, I had a question on how to do it in cpanel.

    I think I do it here:
    • Home » Service Configuration » Apache Configuration » Global Configuration
    and then the SSL Cipher Suite

    but I don't know how to call the protocol names.

    I want to disable TLS_RSA_WITH_AES_128_GCM_SHA256 (for example)

    I think I do with with a exclamation point. but now sure of the name. There are other weak TLSA_RSA_AES with various names and 'features'. Is there a way to blank disable all of them? If not, how do I figure out each of the names?

    Edit: I found this site:
    mod_ssl - Apache HTTP Server Version 2.5

    Which I think helps, but, I still am working through figuring out the correct cipher-tag for each (I think that is the right name)

    #1 ca2236, Jun 22, 2018
    Last edited: Jun 22, 2018
  2. cPanelLauren

    cPanelLauren Forums Analyst II
    Staff Member

    Nov 14, 2017
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    Hi @ca2236

    You should be able to disable with a ! as indicated on the mod_ssl documentation where they show the null ciphers disabled:
    Ultimately you might want to check out secure cipher examples and use something of that nature rather than go through them piece by piece. The documentation here might be helpful:
    SSL/TLS Strong Encryption: How-To - Apache HTTP Server Version 2.4
    Generate Mozilla Security Recommended Web Server Configuration Files
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