![]() ![]() ![]() This is generally used to connect to nasty old appliances that run software from the 90's like old network switches, routers and industrial equipment. There is a chance that in the future no SSH client program will contain outdated and insecure routines, in that case the only way around this is to really fix the server, or use a scary skanky application that is based on a custom and less-tested SSH protocol library. ssh directory and you're good to go.Īll of this can also be done from the Command-line, "nano ~/.ssh/config" will do the trick, but you have to use your keyboard for everything and that can scare some people (and I have no idea if you are one of those and I don't assume anything so hence the big wall of text). If the file already exists, you can add stuff in there, if it doesn't exist, you can save a new file using TextEdit (in plain text mode!) and save it as "config" (but without the quotes, and without any file extension! turn on "show all file extensions" in the finder settings to be sure). Simply enter ".ssh" (without the quotes) in there and press enter. (or cmd-shift-G) to get the navigation popup. You can open the hidden directory in Finder, this works by going to your home directory (Go -> Home or cmd-shift-h) and then using Go -> Go to folder. You can edit and save the file using macOS's built in text editor (TextEdit) in plaintext mode (cmd-shift-T or Format -> Make plain text). All the possible options are documented in the manual at or man ssh_config a terminal emulator of your choice (including Terminal.app). This means that when you connect to your-host.lan, the KexAlgorithms will be configured automatically. Host your-host.lan KexAlgorithms diffie-hellman-group-exchange-sha256 The contents of the file might look like this: The config file allows you to set things that apply to all connections but also specific settings only for some hosts Inside that directory are various files, but a specific file named 'config' can exist there (or be created) In your home directory on your client (so your Mac) there is a. This will not help you if you are using key exchange methods or ciphers that are so old or insecure that they are deleted from modern SSH clients, but it will help you to enable default "-o" flags per-host. for nowīut another option that is using your local ssh config! This allows you to specify specific settings per host, so when you run the ssh program (any official OpenSSH-based program, that is) it will note that the host you are connecting to has an entry in your ssh config file and apply the settings that you specified there when setting up the connection. The only programs that won't warn or deny you are those that are outdated or use a non-standard SSH library. An easier method would be to fix your key exchange -) Because it's not the program that is doing the complaining, it's the SSH library that points out that what you are doing is a Bad Idea™. ![]()
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