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How to install public key in host windows server 2012

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3

5

My user from another server gave his public key to me and asked me to install this public key into my server so he can connect to my server. Did some research and I have to create a directory called .ssh and paste my user public key in a Notepad and save this text file into the .ssh directory. My question is does my research correct if so where and how I create this .ssh directory and the key file, is it in text file format? Do I have to pass any information like my key to the user? I’m using Windows Server 2012.

ssh windows-server-2012 openssh sftp

share|improve this question

edited Apr 11 at 13:16

xChaax

asked Apr 10 at 5:25

xChaaxxChaax

144

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Comments are not for extended discussion; this conversation has been moved to chat.
  
  – DavidPostill♦
  Apr 12 at 19:40
  

  
  
  
  

add a comment | 

3

5

My user from another server gave his public key to me and asked me to install this public key into my server so he can connect to my server. Did some research and I have to create a directory called .ssh and paste my user public key in a Notepad and save this text file into the .ssh directory. My question is does my research correct if so where and how I create this .ssh directory and the key file, is it in text file format? Do I have to pass any information like my key to the user? I’m using Windows Server 2012.

ssh windows-server-2012 openssh sftp

share|improve this question

edited Apr 11 at 13:16

xChaax

asked Apr 10 at 5:25

xChaaxxChaax

144

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Comments are not for extended discussion; this conversation has been moved to chat.
  
  – DavidPostill♦
  Apr 12 at 19:40
  

  
  
  
  

add a comment | 

My user from another server gave his public key to me and asked me to install this public key into my server so he can connect to my server. Did some research and I have to create a directory called .ssh and paste my user public key in a Notepad and save this text file into the .ssh directory. My question is does my research correct if so where and how I create this .ssh directory and the key file, is it in text file format? Do I have to pass any information like my key to the user? I’m using Windows Server 2012.

ssh windows-server-2012 openssh sftp

share|improve this question

edited Apr 11 at 13:16

xChaax

asked Apr 10 at 5:25

xChaaxxChaax

144

share|improve this question

edited Apr 11 at 13:16

xChaax

asked Apr 10 at 5:25

xChaaxxChaax

144

share|improve this question

edited Apr 11 at 13:16

xChaax

asked Apr 10 at 5:25

xChaaxxChaax

144

asked Apr 10 at 5:25

xChaaxxChaax

144

asked Apr 10 at 5:25

xChaaxxChaax

144

1 Answer
1

active

oldest

votes

12

• The public key must go into authorized_keys file (not just to some text file) in the .ssh subfolder of user's home directory.


• 
  

  The public key entry must have a correct format like:

  
  
  

  ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIEAir2cIHsAFg8QzLF6Yb... some optional comment
  

  
  



• The authorized_keys file must use *nix line endings, what Notepad cannot do (so make sure your SFTP/FTP client uses ASCII transfer mode to convert the line endings)



• The .ssh folder needs to have 700 permissions and the authorized_keys needs to have 600 permissions.

There are zillions of guides on the Internet that cover the above.

For example see my guide to Setting up SSH public key authentication in OpenSSH.

---

If the user is already a user on your server (has password [or other] authentication working), he/she can setup the public key on his/her own.

• On *nix machines (or others that have OpenSSH available, what may include Windows), you can use ssh-copy-id script.


• On Windows machines, you can use (my) WinSCP, with its Install Public Key into Server function.

See also my answer to Setting up public key authentication to Linux server from Windows (ppk private key).

---

You should provide your user a copy of the server's public host key, so that the user can verify it, when connecting for the first time (it's a separate from the authentication, what the rest of the question is about). Though many users just blindly accept the host key.

share|improve this answer

edited Apr 10 at 16:43

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does it matter what directory for .ssh folder ? If does, what directory is home directory? And what is the format for authorized_keys file ?
  
  – xChaax
  Apr 10 at 7:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  See my updated answer.
  
  – Martin Prikryl
  Apr 10 at 7:18
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  More generally, the public key must go in whatever file is specified as AuthorizedKeysFile in sshd_config, which by default is ~/.ssh/authorized_keys
  
  – user4556274
  Apr 10 at 12:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It's a bit of a sloppy hack, but on new machines I generally run a 'ssh-keygen' to create the ~/.ssh/ directory in the proper place with the proper permissions, and then copy keys into the authorized_keys file.
  
  – Dave X
  Apr 11 at 3:29
  

  
  
  
  

add a comment | 

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12

• The public key must go into authorized_keys file (not just to some text file) in the .ssh subfolder of user's home directory.


• 
  

  The public key entry must have a correct format like:

  
  
  

  ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIEAir2cIHsAFg8QzLF6Yb... some optional comment
  

  
  



• The authorized_keys file must use *nix line endings, what Notepad cannot do (so make sure your SFTP/FTP client uses ASCII transfer mode to convert the line endings)



• The .ssh folder needs to have 700 permissions and the authorized_keys needs to have 600 permissions.

There are zillions of guides on the Internet that cover the above.

For example see my guide to Setting up SSH public key authentication in OpenSSH.

---

If the user is already a user on your server (has password [or other] authentication working), he/she can setup the public key on his/her own.

• On *nix machines (or others that have OpenSSH available, what may include Windows), you can use ssh-copy-id script.


• On Windows machines, you can use (my) WinSCP, with its Install Public Key into Server function.

See also my answer to Setting up public key authentication to Linux server from Windows (ppk private key).

---

You should provide your user a copy of the server's public host key, so that the user can verify it, when connecting for the first time (it's a separate from the authentication, what the rest of the question is about). Though many users just blindly accept the host key.

share|improve this answer

edited Apr 10 at 16:43

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does it matter what directory for .ssh folder ? If does, what directory is home directory? And what is the format for authorized_keys file ?
  
  – xChaax
  Apr 10 at 7:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  See my updated answer.
  
  – Martin Prikryl
  Apr 10 at 7:18
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  More generally, the public key must go in whatever file is specified as AuthorizedKeysFile in sshd_config, which by default is ~/.ssh/authorized_keys
  
  – user4556274
  Apr 10 at 12:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It's a bit of a sloppy hack, but on new machines I generally run a 'ssh-keygen' to create the ~/.ssh/ directory in the proper place with the proper permissions, and then copy keys into the authorized_keys file.
  
  – Dave X
  Apr 11 at 3:29
  

  
  
  
  

add a comment | 

12

• The public key must go into authorized_keys file (not just to some text file) in the .ssh subfolder of user's home directory.


• 
  

  The public key entry must have a correct format like:

  
  
  

  ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIEAir2cIHsAFg8QzLF6Yb... some optional comment
  

  
  



• The authorized_keys file must use *nix line endings, what Notepad cannot do (so make sure your SFTP/FTP client uses ASCII transfer mode to convert the line endings)



• The .ssh folder needs to have 700 permissions and the authorized_keys needs to have 600 permissions.

There are zillions of guides on the Internet that cover the above.

For example see my guide to Setting up SSH public key authentication in OpenSSH.

---

If the user is already a user on your server (has password [or other] authentication working), he/she can setup the public key on his/her own.

• On *nix machines (or others that have OpenSSH available, what may include Windows), you can use ssh-copy-id script.


• On Windows machines, you can use (my) WinSCP, with its Install Public Key into Server function.

See also my answer to Setting up public key authentication to Linux server from Windows (ppk private key).

---

You should provide your user a copy of the server's public host key, so that the user can verify it, when connecting for the first time (it's a separate from the authentication, what the rest of the question is about). Though many users just blindly accept the host key.

share|improve this answer

edited Apr 10 at 16:43

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does it matter what directory for .ssh folder ? If does, what directory is home directory? And what is the format for authorized_keys file ?
  
  – xChaax
  Apr 10 at 7:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  See my updated answer.
  
  – Martin Prikryl
  Apr 10 at 7:18
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  More generally, the public key must go in whatever file is specified as AuthorizedKeysFile in sshd_config, which by default is ~/.ssh/authorized_keys
  
  – user4556274
  Apr 10 at 12:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It's a bit of a sloppy hack, but on new machines I generally run a 'ssh-keygen' to create the ~/.ssh/ directory in the proper place with the proper permissions, and then copy keys into the authorized_keys file.
  
  – Dave X
  Apr 11 at 3:29
  

  
  
  
  

add a comment | 

• The public key must go into authorized_keys file (not just to some text file) in the .ssh subfolder of user's home directory.


• 
  

  The public key entry must have a correct format like:

  
  
  

  ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIEAir2cIHsAFg8QzLF6Yb... some optional comment
  

  
  



• The authorized_keys file must use *nix line endings, what Notepad cannot do (so make sure your SFTP/FTP client uses ASCII transfer mode to convert the line endings)



• The .ssh folder needs to have 700 permissions and the authorized_keys needs to have 600 permissions.

There are zillions of guides on the Internet that cover the above.

For example see my guide to Setting up SSH public key authentication in OpenSSH.

---

If the user is already a user on your server (has password [or other] authentication working), he/she can setup the public key on his/her own.

• On *nix machines (or others that have OpenSSH available, what may include Windows), you can use ssh-copy-id script.


• On Windows machines, you can use (my) WinSCP, with its Install Public Key into Server function.

See also my answer to Setting up public key authentication to Linux server from Windows (ppk private key).

---

You should provide your user a copy of the server's public host key, so that the user can verify it, when connecting for the first time (it's a separate from the authentication, what the rest of the question is about). Though many users just blindly accept the host key.

share|improve this answer

edited Apr 10 at 16:43

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

share|improve this answer

edited Apr 10 at 16:43

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482

answered Apr 10 at 6:19

Martin PrikrylMartin Prikryl

11.5k43482