How To Change mac/cipher/kex Algorithms used by SSH

[_Val_]

By default, SSH and SSHD allow all ciphers and MACs (Message Authentication Codes) available to them.

However, if you are seeking guidance to change the default settings in favor of stronger ciphers and algorithms, please refer to this SecureKnowledge article for guidance.

[Fire_Verse]

SK 179517 from above no longer exists.

[PhoneBoy]

That SK is now internal.
However, there's an equivalent public SK: https://support.checkpoint.com/results/sk/sk172189
In R81.20, there are clish commands for this: https://sc1.checkpoint.com/documents/R81.20/WebAdminGuides/EN/CP_R81.20_Gaia_AdminGuide/Content/Topi...