mirror of https://github.com/borgbackup/borg.git
Simplify ssh authorized_keys file
Just using "restrict"; closes https://github.com/borgbackup/borg/issues/2121
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@ -68,8 +68,7 @@ forced command and restrictions applied as shown below:
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command="cd /home/backup/repos/<client fqdn>;
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borg serve --restrict-to-path /home/backup/repos/<client fqdn>",
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no-port-forwarding,no-X11-forwarding,no-pty,
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no-agent-forwarding,no-user-rc <keytype> <key> <host>
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restrict <keytype> <key> <host>
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.. note:: The text shown above needs to be written on a single line!
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@ -147,7 +146,7 @@ package manager to install and keep borg up-to-date.
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- file: path="{{ pool }}" owner="{{ user }}" group="{{ group }}" mode=0700 state=directory
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- authorized_key: user="{{ user }}"
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key="{{ item.key }}"
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key_options='command="cd {{ pool }}/{{ item.host }};borg serve --restrict-to-path {{ pool }}/{{ item.host }}",no-port-forwarding,no-X11-forwarding,no-pty,no-agent-forwarding,no-user-rc'
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key_options='command="cd {{ pool }}/{{ item.host }};borg serve --restrict-to-path {{ pool }}/{{ item.host }}",restrict'
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with_items: "{{ auth_users }}"
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- file: path="{{ home }}/.ssh/authorized_keys" owner="{{ user }}" group="{{ group }}" mode=0600 state=file
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- file: path="{{ pool }}/{{ item.host }}" owner="{{ user }}" group="{{ group }}" mode=0700 state=directory
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@ -198,11 +197,7 @@ Salt running on a Debian system.
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- source: salt://conf/ssh-pubkeys/{{host}}-backup.id_ecdsa.pub
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- options:
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- command="cd /home/backup/repos/{{host}}; borg serve --restrict-to-path /home/backup/repos/{{host}}"
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- no-port-forwarding
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- no-X11-forwarding
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- no-pty
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- no-agent-forwarding
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- no-user-rc
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- restrict
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{% endfor %}
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@ -277,7 +277,7 @@ use of the SSH keypair by prepending a forced command to the SSH public key in
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the remote server's `authorized_keys` file. This example will start |project_name|
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in server mode and limit it to a specific filesystem path::
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command="borg serve --restrict-to-path /path/to/repo",no-pty,no-agent-forwarding,no-port-forwarding,no-X11-forwarding,no-user-rc ssh-rsa AAAAB3[...]
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command="borg serve --restrict-to-path /path/to/repo",restrict ssh-rsa AAAAB3[...]
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If it is not possible to install |project_name| on the remote host,
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it is still possible to use the remote host to store a repository by
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@ -23,7 +23,7 @@ locations like ``/etc/environment`` or in the forced command itself (example bel
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# Use key options to disable unneeded and potentially dangerous SSH functionality.
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# This will help to secure an automated remote backup system.
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$ cat ~/.ssh/authorized_keys
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command="borg serve --restrict-to-path /path/to/repo",no-pty,no-agent-forwarding,no-port-forwarding,no-X11-forwarding,no-user-rc ssh-rsa AAAAB3[...]
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command="borg serve --restrict-to-path /path/to/repo",restrict ssh-rsa AAAAB3[...]
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# Set a BORG_XXX environment variable on the "borg serve" side
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$ cat ~/.ssh/authorized_keys
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