Author: Daniel Baumann <daniel.baumann@progress-linux.org>
Description: Setting AuthorizedKeysFile in sshd_config to /etc/ssh/authorized_keys/%u .ssh/authorized_keys.

diff -Naurp openssh.orig/sshd_config openssh/sshd_config
--- openssh.orig/sshd_config
+++ openssh/sshd_config
@@ -43,9 +43,7 @@ PermitRootLogin no
 
 #PubkeyAuthentication yes
 PubkeyAcceptedKeyTypes ssh-ed25519-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
-
-# Expect .ssh/authorized_keys2 to be disregarded by default in future.
-#AuthorizedKeysFile	.ssh/authorized_keys .ssh/authorized_keys2
+AuthorizedKeysFile /etc/ssh/authorized_keys/%u .ssh/authorized_keys
 
 #AuthorizedPrincipalsFile none