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guide_public_key 2020-12-25 guide_public_key 2023-12-06 (current)
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====== Set up SSH public key authentication ====== ====== Set up SSH public key authentication ======
-//This guide contains description of setting up public key authentication for use with WinSCP. You may want to learn more about [[public_key|public key authentication]] or [[ssh_keys|SSH keys]] instead//.+//This guide contains a description of setting up public key authentication for use with WinSCP. You may want to learn more about [[public_key|public key authentication]] or [[ssh_keys|SSH keys]] instead//.
===== Before Starting ===== ===== Before Starting =====
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If you do not have a key pair yet, start with [[public_key#generate|generating new key pair]]. If you do not have a key pair yet, start with [[public_key#generate|generating new key pair]].
-===== Configure Server to Accept Public Key =====+===== [[server]] Configure Server to Accept Public Key =====
Connect to your SSH server using WinSCP with the %%SSH%% protocol, using other means of authentication than public key, e.g. typically using password authentication. Connect to your SSH server using WinSCP with the %%SSH%% protocol, using other means of authentication than public key, e.g. typically using password authentication.
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==== [[configure_openssh]] OpenSSH ==== ==== [[configure_openssh]] OpenSSH ====
-You can use //Session > Install Public Key into Server// command on the main window, or //Tools > Install Public Key into Server// command on //[[ui_login_authentication|SSH > Authentication page]]// page on Advanced Site Settings dialog. The functionality of the command is similar to that of OpenSSH ''[[https://linux.die.net/man/1/ssh-copy-id|ssh-copy-id]]'' command.+You can use //Session (Tabs) > Install Public Key into Server// command on the main window, or //Tools > Install Public Key into Server// command on //[[ui_login_authentication|SSH > Authentication page]]// page on Advanced Site Settings dialog. The functionality of the command is similar to that of OpenSSH ''[[https://manpages.debian.org/stable/openssh-client/ssh-copy-id.1.en.html|ssh-copy-id]]'' command.
Or you can configure the key manually: Or you can configure the key manually:
-  * Navigate into a ''.ssh'' subdirectory of your account home directory. You may need to enable [[ui_pref_panels#common|showing hidden files]] to see the directory. If the directory does not exists, you need to [[task_create_directory|create it]] first.+  * Navigate into a ''.ssh'' subdirectory of your account home directory. You may need to enable [[ui_pref_panels#common|showing hidden files]] to see the directory. If the directory does not exist, you need to [[task_create_directory|create it]] first.
  * Once there, open a file ''authorized_keys'' for [[task_edit|editing]]. Again you may have to create this file, if this is your first key.   * Once there, open a file ''authorized_keys'' for [[task_edit|editing]]. Again you may have to create this file, if this is your first key.
  * Switch to the [[ui_puttygen|PuTTYgen]] window, select all of the text in the //[[ui_puttygen#authorized_keys|Public key for pasting into OpenSSH authorized_keys file]]// box, and copy it to the clipboard (''Ctrl+C''). Then, switch back to the editor and insert the data into the open file, making sure it ends up all on one line. Save the file. WinSCP can [[ui_login_authentication#private_key_tools|show you the public key]] too.   * Switch to the [[ui_puttygen|PuTTYgen]] window, select all of the text in the //[[ui_puttygen#authorized_keys|Public key for pasting into OpenSSH authorized_keys file]]// box, and copy it to the clipboard (''Ctrl+C''). Then, switch back to the editor and insert the data into the open file, making sure it ends up all on one line. Save the file. WinSCP can [[ui_login_authentication#private_key_tools|show you the public key]] too.
  * Ensure that your account home directory, your ''.ssh'' directory and file ''authorized_keys'' are not group-writable or world-writable. Recommended permissions for ''.ssh'' directory are ''700''. Recommended permissions for ''authorized_keys'' files are ''600''. Read more about [[task_properties|changing permissions]].   * Ensure that your account home directory, your ''.ssh'' directory and file ''authorized_keys'' are not group-writable or world-writable. Recommended permissions for ''.ssh'' directory are ''700''. Recommended permissions for ''authorized_keys'' files are ''600''. Read more about [[task_properties|changing permissions]].
 +
 +==== OpenSSH on Windows ====
 +
 +There are some specifics when setting up the [[guide_windows_openssh_server#key_authentication|public key authentication on OpenSSH server on Windows]].
==== ssh.com ==== ==== ssh.com ====
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For other %%SSH%% server software, you should refer to the manual for that server. For other %%SSH%% server software, you should refer to the manual for that server.
-===== Configure WinSCP Session =====+===== [[winscp]] Configure WinSCP Session =====
When configuring session, specify path to your private key on //[[ui_login_authentication|SSH > Authentication page]]// of Advanced Site Settings dialog. When configuring session, specify path to your private key on //[[ui_login_authentication|SSH > Authentication page]]// of Advanced Site Settings dialog.

Last modified: by martin