https://bugzilla.mindrot.org/show_bug.cgi?id=3813
Bug ID: 3813
Summary: "at" port filter in authorized_keys
Product: Portable OpenSSH
Version: 10.0p1
Hardware: Other
OS: Linux
Status: NEW
Severity: enhancement
Priority: P5
Component: sshd
Assignee: [email protected]
Reporter: [email protected]
The authorized_key file can be used to restrict access for users. The
“from” option binds the incoming user to a client IP. I would like to
extend this. Please add an “at” filter that only allows incoming users
(commands) on a specific server port. This would make it possible to
set up targeted firewall rules. Also fail2ban could be set to this.
Example: Port 22 is open as a decoy, while admin is only allowed on
port 10341.
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