Add Secure DOD Banner to SSH

Ansible/openssh.yml

@@ -33,6 +33,12 @@
         mode: "0600"
         src: ~/.ssh/authorized_keys
         dest: /home/bhays/.ssh/authorized_keys
+    - name: Copy secure login banner
+      ansible.builtin.copy:
+        owner: root
+        mode: "0644"
+        src: ../Configs/login_banner
+        dest: /etc/login_banner
     - name: Copy Secure Configuration File
       ansible.builtin.copy:
         owner: bhays

Configs/login_banner

@@ -0,0 +1,12 @@
+You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions:
+
+-The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations.
+
+-At any time, the USG may inspect and seize data stored on this IS.
+
+-Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose.
+
+-This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy.
+
+-Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.
+

Configs/sshd_config

@@ -23,6 +23,7 @@ TCPKeepAlive no
 ClientAliveCountMax 2
 
 PubkeyAuthentication yes
+Banner /etc/login_banner
 
 PermitRootLogin no
 PasswordAuthentication no