If I have a backup server which can be accessed with public IP and LAN IP, updating a repo from public IP makes it inaccessible from LAN IP (and vice-versa):
Warning: The repository at location ssh://[email protected]/mnt/hdd/attic/main.attic was previously located at ssh://attic-test@publicip:26332/mnt/hdd/attic/main.attic
attic: Error: Repository access aborted'