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Special Forums UNIX and Linux Applications What is the difference between /etc/ssh/ and ~/.ssh? Post 303016253 by kavish11 on Monday 23rd of April 2018 12:31:39 PM
Old 04-23-2018
What is the difference between /etc/ssh/ and ~/.ssh?

Hi,

I know the “/etc/ssh” directory is for the ssh daemon and the “~/.ssh” directory is for a particular user.

Both directories contain private and public keys: (see the attachment)

but what is the difference between those keys in both directories? I'm confused because the ones i use as a user, is in my home directory ~/.ssh, and what are the roles of the keys found in /etc/ssh ? for what purpose are they created for ?

Thanks.
What is the difference between /etc/ssh/ and ~/.ssh?-screen-shot-2018-04-23-180806png
 

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SSH-COPY-ID(1)						      General Commands Manual						    SSH-COPY-ID(1)

NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine and append the indicated identity file to that machine's ~/.ssh/autho- rized_keys file. If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your ssh-agent. Otherwise, if this: ssh-add -L provides any output, it uses that in preference to the identity file. If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin- gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory, if necessary.) NOTES
This program does not modify the permissions of any pre-existing files or directories. Therefore, if the remote sshd has StrictModes set in its configuration, then the user's home, ~/.ssh folder, and ~/.ssh/authorized_keys file may need to have group writability disabled manu- ally, e.g. via chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys on the remote machine. SEE ALSO
ssh(1), ssh-agent(1), sshd(8) OpenSSH 14 November 1999 SSH-COPY-ID(1)
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