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I had this question after viewing <a href="https://www.experts-exchange.com/questions/28595830/SSH-How-to-Disable-CBC-Mode-Cipher-Encryption-and-Enable-CTR-or-GCM-Cipher-MOde-Encryption.html" rel="ugc">SSH - How to Disable CBC Mode Cipher Encryption and Enable CTR or GCM Cipher MOde Encryption?</a>.<br />
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I have the same issue for Server 2012r2. I'd like to disable CBC mode cipher encryption, and enable CTR or GCM cipher mode encryption.
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I had this question after viewing SSH - How to Disable CBC Mode Cipher Encryption and Enable CTR or GCM Cipher MOde Encryption? (https://www.experts-exchange.com/questions/28595830/SSH-How-to-Disable-CBC-Mode-Cipher-Encryption-and-Enable-CTR-or-GCM-Cipher-MOde-Encryption.html).

I have the same issue for Server 2012r2. I'd like to disable CBC mode cipher encryption, and enable CTR or GCM cipher mode encryption.

Server 2012r2 - disable Cipher Block chaining (CBC0 and enable CTR or GCM cipher mode encryption)

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.

Encryption

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.