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Setup

  • Git version: 2.20.1
  • Our team uses the 32-bit Portable Git version
  • Machine: Win10 1803 64 bit

Details

Our team found a strange behavior using the included ssh-keygen.exe using the -F parameter to search for server keys in the known-hosts file.

Ssh
  1. Ssh-keygen is not recognized windows 10 (6) STEP 1 Install Git. STEP 2 Add the path of your git to the environment variables like this C: Program Files (x86) Git bin. STEP 3 Open new terminal session and try ssh-keygen. It will work.
  2. I’m now trying to connect to the new server from my local machine. The instructions say to use this command: ssh demo@SERVERIPADDRESS. When I try that in a terminal window, I am told ‘ssh’ is not recognized as an internal or external command. I am using Windows and using PuTTY to connect.
  3. Windows - 'ssh-keygen' is not recognized as an internal or external command itPublisher 分享于 2017-03-21 推荐： 解决windows的dos下某些命令例如ping、telnet、more 不是内部或外部命令(is not recognized as an internal or external command).

Adobe after effects cc 18. Checked in C: Program Files OpenSSH bin, there is no ssh.exe, just only these files: ssh-add.exe ssh-agent.exe ssh-host-config ssh-keygen.exe ssh-keyscan.exe Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their. Trying to generate an ssh key on Windows 10 - getting an error message 'ssh-keygen is not recognized as an internal or external command, operable program or batch. The tutorial you saw was assuming that both the host and the server machines ran linux. Ssh-keygen is a UNIX only command and of course doesn’t work on a Windows computer. There is a way around this using a program called PuTTYGen.

How to reproduce the issue:

Not

To import server keys in hashed format into the Git home directory / .ssh / known_hosts file we have to run the commands like these ones (in git-bash):
ssh-keyscan -p {port} -t rsa -H {hostname} >> ~/.ssh/known_hosts
Sometimes we run this with specific port, sometimes without port (when the default port 22 is used).

To check later whether a server key was already imported or not we run the following command:
ssh-keygen -F hostname or [hostname]:port

(For correct reproduction it is suggested to rename/delete existing known_hosts file.)

Example 1 : Correct Scenario (without port + hashed address)
ssh-keyscan -t rsa -H bitbucket.org >> ~/.ssh/known_hosts
Checking the server later in known_hosts:
ssh-keygen -F bitbucket.org
Result: ✔️ the hashed server info + its key is correctly listed

Example 2 : Correct Scenario (with port + no hashed address)
ssh-keyscan -p 7999 -t rsa myServer.myDomain.com >> ~/.ssh/known_hosts
Checking the server later in known_hosts:
ssh-keygen -F [myServer.myDomain.com]:7999
Result: ✔️ the non-hashed server info + its key is correctly listed

Ssh-keygen Not Recognized Windows 7

Example 3 : Incorrect Scenario (with port + hashed address)
ssh-keyscan -p 7999 -t rsa -H myServer.myDomain.com >> ~/.ssh/known_hosts
Checking the server later in known_hosts:
ssh-keygen -F [myServer.myDomain.com]:7999
Result: ❌Nothing is listed, the server+port is not found although the hashed server address is theoretically in the known_hosts file.