Jun 19, 2018 - The standard OpenSSH suite of tools contains the ssh-keygen utility, which is used to generate key pairs. Macbook pro os x utilities. Run it on your local computer to. For years I have been using a line like this to automatically create an SSH key pair without a passphrase: /usr/bin/ssh-keygen -q -b 1024 -N ' -C 'vagrant@labman01' -f keys/labkey I typically call ssh-keygen from an Ansible play and then proceed to provision the key to a number of vagrant guest machines when creating a lab environment. However, since upgrading to MacOS Mojave (10.14.2) the generated key is later reported as invalid by Ansible on the Linux guests, and attempting to use the key manually on the Linux guest causes a prompt for a passphrase, as if the private key is password protected. Doing the same on any Linux host machine, however, creates a valid key. Is there some new trick to generate a valid, password free key pair on MacOS Mojave? UPDATE When examining the generated key file, I noticed that MacOS Mojave uses -----BEGIN OPENSSH PRIVATE KEY----- instead of -----BEGIN RSA PRIVATE KEY----- as the PEM header. Same thing for the footer. There appears to be a change in the key format on OpenSSH 7.8 and later. Simply changing the header does not fix the problem. There appears to be a change in the default key file format in OpenSSH_7.8p1 and later. MacOS Mojave 10.14.2 ships with OpenSSH_7.9p1. Adding -m PEM changes the behaviour of ssh-keygen to use the legacy PEM private key format, which was the default on previous Mac OS releases. /usr/bin/ssh-keygen -q -m PEM -b 1024 -N ' -C 'vagrant@labman01' -f keys/labkey Unfortunately, the -m option is not supported in earlier versions of OpenSSH, so version specific code must be maintained to sustain older OS releases. Modified: 05 Apr 2019 17:54 UTC You generate an SSH key through macOS by using the Terminal application. Once you upload a valid public SSH key, the Triton Compute Service uses SmartLogin to copy the public key to any new SmartMachine you provision. Joyent recommends RSA keys because the node-manta CLI programs work with RSA keys both locally and with the ssh agent. DSA keys will work only if the private key is on the same system as the CLI, and not password-protected. Terminal is the terminal emulator which provides a text-based command line interface to the Unix shell of macOS. To open the macOS Terminal, follow these steps: • In Finder, choose Utilities from the Applications folder. • Find Terminal in the Utilities listw. • Open Terminal. The Terminal window opens with the commandline prompt displaying the name of your machine and your username. An SSH key consists of a pair of files. One is the private key, which should never be shared with anyone. The other is the public key. The other file is a public key which allows you to log into the containers and VMs you provision. When you generate the keys, you will use ssh-keygen to store the keys in a safe location so you can bypass the login prompt when connecting to your instances. To generate SSH keys in macOS, follow these steps: • Enter the following command in the Terminal window. Ssh-keygen -t rsa This starts the key generation process. When you execute this command, the ssh-keygen utility prompts you to indicate where to store the key. • Press the ENTER key to accept the default location. The ssh-keygen utility prompts you for a passphrase. • Type in a passphrase. You can also hit the ENTER key to accept the default (no passphrase). However, this is not recommended. You will need to enter the passphrase a second time to continue. After you confirm the passphrase, the system generates the key pair. Your identification has been saved in /Users/myname/.ssh/id_rsa. Your public key has been saved in /Users/myname/.ssh/id_rsa.pub. The key fingerprint is: ae:89:72:0b:85:da:5a:f4:7c:1f:c2:43:fd:c6:44:38 [email protected] The key's randomart image is: +--[ RSA 2048]----+|||.|| E.||. + o = o +|| o.o * o||. Oo.o.| +-----------------+ Your private key is saved to the id_rsa file in the.ssh directory and is used to verify the public key you use belongs to the same Triton Compute Service account. ICatch is a world-leading company in surveillance equipment, CCTV, Digital Video Recorder, IP solutions & cameras. Icatch camera. Never share your private key with anyone! Your public key is saved to the id_rsa.pub;file and is the key you upload to your Triton Compute Service account. You can save this key to the clipboard by running this: pbcopy.
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