Git Bash Could not open a connection to your authentication agent

Question

I m new to Github and Generating SSH Keys look a neccessity  And was informed by my boss about this  so I need to comply   I successfully created SSH Key but when I m going to add it to the ssh-agent  this is what happens  What seems to be the problem

User · Answer

Situation  MVS2017 App - Using  Git Bash  on Windows 10 - Trying to connect to a BitBucket repository   To be clear  when you install Git for Windows  https   git-scm com download win   it comes with an utility called Git Bash     So  I am in  Git Bash   as follows   Mike DUBLIN MINGW64   source repos DoubleIrish  master    git remote add origin git bitbucket org Guiness DoubleIrish git   git remote -v origin  git bitbucket org Guiness DoubleIrish git  fetch  origin  git bitbucket org Guiness DoubleIrish git  push  Mike DUBLIN MINGW64   source repos DoubleIrish  master    git push -u origin master       git bitbucket org  Permission denied  publickey   fatal  Could not read from remote repository    Is the private key set up     ssh -V OpenSSH 7 7p1  OpenSSL 1 0 2p  14 Aug 2018   ls -a    ssh          known hosts   I can see that  at this point  my private key file  id rsa  is missing  So I add it   note  generating a pair of private-public keys is out of scope of my reply  but I can say that in Linux  you can use ssh-keygen for that      ls -a    ssh          id rsa  known hosts   OK  let s proceed     ssh-agent SSH AUTH SOCK  tmp ssh-KhQwFLAgWGYC agent 18320  export SSH AUTH SOCK  SSH AGENT PID 17996  export SSH AGENT PID  echo Agent pid 17996     ssh-add    ssh id rsa Could not open a connection to your authentication agent    To solve this  I run     ssh-agent bash   And then  again     ssh-add    ssh id rsa Identity added   c Users Mike CORP  ssh id rsa   c Users Mike CORP  ssh id rsa    It worked for me  Hope this helps

User · Answer

above solution doesn t work for me for unknown reason  below is my workaround which was worked successfully   1  DO NOT generate a new ssh key by using command ssh-keygen -t rsa -C xxx xx com    you can delete existing SSH keys   2  but use Git GUI  -   Help  -   Show ssh key  -   Generate key    the key will saved to ssh automatically and no need to use ssh-add anymore

User · Answer

I checked all the solutions on this post and the post that  kenorb referenced above  and I did not find any solution that worked for me   I am using Git 1 9 5 Preview on Windows 7 with the following configuration  - Run Git from the Windows Command Prompt - Checkout Windows-style  commit Unix-style line endings  I used the  Git Bash  console for everything    And all was well until I tried to install the SSH keys  GitHub s documentation says to do the following  don t run these commands until you finish reading the post       Ensure ssh-agent is enabled       If you are using Git Bash  turn on ssh-agent     start the ssh-agent in the background ssh-agent -s   Agent pid 59566       If you are using another terminal prompt  such as msysgit  turn on ssh-agent     start the ssh-agent in the background eval   ssh-agent -s    Agent pid 59566    Now of course I missed the fact that you were supposed to do one or the other  So  I ran these commands multiple times because the later ssh-add command was failing  so I returned to this step  and continued to retry over and over   This results in 1 Windows  ssh-agent  process being created every single time you run these commands  notice the new PID every time you enter those commands    So  Ctrl Alt Del and hit End Process to stop each  ssh-agent exe  process   Now that all the messed up stuff from the failed attempts is cleaned up  I will tell you how to get it working     In  Git Bash    Start the  ssh-agent exe  process  eval   ssh-agent -s    And install the SSH keys  ssh-add  C  Users MyName  ssh id rsa      Adjust the path above with your username  and make sure that the location of the    ssh directory is in the correct place  I think you choose this location during the Git installation  Maybe not     The part I was doing wrong before I figured this out was I was not using quotes around the  ssh-add  location  The above is how it needs to be entered on Windows

User · Answer

I was struggling with the problem as well   After I typed    eval  ssh-agent -s  followed by  ssh-add    ssh id rsa  I got the same complain   Could not open a connection to your authentication agent   Then I realize there are two different kind of quotation on my computer s keyboard  So I tried the one at the same position as        eval ssh-agent -s   ssh-add    ssh id rsa  And bang it worked

User · Answer

Try using cygwin instead of bash  that worked for me

User · Answer

On Windows  you can use Run with one of the below commands   For 32-Bit       C  Program Files  x86  Git cmd start-ssh-agent cmd    For-64 Bit       C  Program Files Git cmd start-ssh-agent cmd

User · Answer

It seems you need to run ssh-agent before using it   eval  ssh-agent -s    That question was answered in this topic  Could not open a connection to your authentication agent

User · Answer

I would like to improve on the accepted answer   Downsides of using  bashrc with eval ssh-agent -s    Every git-bash will have it s own ssh-agent exe process  SSH key should be manually added every time you open git-bash   Here is my  bashrc that will eradicate above downsides  Put this  bashrc into your home directory  Windows 10  C  Users  username   bashrc  and it will be executed every time a new git-bash is opened and ssh-add will be working as a first class citizen  Read  comments to understand how it works    Env vars used   SSH AUTH SOCK - ssh-agent socket  should be set for ssh-add or git to be able to connect   SSH AGENT PID - ssh-agent process id  should be set in order to check that it is running   SSH AGENT ENV - env file path to share variable between instances of git-bash SSH AGENT ENV   ssh-agent env   import env file and supress error message if it does not exist    SSH AGENT ENV 2 gt   dev null    if we know that ssh-agent was launched before   SSH AGENT PID is set  and process with that pid is running  if   -n   SSH AGENT PID     amp  amp  ps -p  SSH AGENT PID  gt   dev null  then     we don t need to do anything  ssh-add and git will properly connect since we ve imported env variables required   echo  Connected to ssh-agent  else        start ssh-agent and save required vars for sharing in  SSH AGENT ENV file   eval   ssh-agent   gt   dev null   echo export SSH AUTH SOCK    SSH AUTH SOCK    gt   SSH AGENT ENV   echo export SSH AGENT PID  SSH AGENT PID  gt  gt   SSH AGENT ENV   echo  Started ssh-agent  fi   Also this script uses a little trick to ensure that provided environment variables are shared between git-bash instances by saving them into an  env file

[git] Git Bash: Could not open a connection to your authentication agent

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