SSL Cipher Question

JamesKemp

• January 02, 2017 23:16

Hi, How can I add the following cipher to CentOS 7 with cPanel: 3des-cbc,arcfour,cast128-cbc,twofish-cbc,blowfish-cbc,twofish128-cbc,aes128-cbc,aes256-cbc server,aes256-ctr,aes128-ctr Thank you!

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  cPanelMichael

  • January 06, 2017 21:15

  Hello, Information on how to adjust cipher settings is documented at: How to Adjust Cipher Protocols - cPanel Knowledge Base - cPanel Documentation Let us know if you have any questions. Thanks!

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  JamesKemp

  • January 07, 2017 02:20

  Hi Michael, I need to add the following Cipher to CentOS 7 server because CuteFTP SFTP is not working with the new default Cipher and it's unable to connect, please let me know how I can enable the following Cipher? 3des-cbc,arcfour,cast128-cbc,twofish-cbc,blowfish-cbc,twofish128-cbc,aes128-cbc,aes256-cbc server,aes256-ctr,aes128-ctr I have added the following to sshd2_config file but it's still not working: Ciphers 3des-cbc,arcfour,cast128-cbc,twofish-cbc,blowfish-cbc,twofish128-cbc,aes128-cbc,aes256-cbc server,aes256-ctr,aes128-ctr Thank you!

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  cPanelMichael

  • January 20, 2017 12:54

  I have added the following to sshd2_config file but it's still not working:

  
  You'd need to add your custom cipher entry to the /etc/ssh/sshd_config file and then restart the SSHd service:
  /scripts/restartsrv_sshd
  There's a third-party URL with information on how to change the cipher list (though the specific ciphers referenced in this URL might be outdated) How to harden SSH on CentOS 6.5 Thank you.

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