STIGhubSTIGhub
STIGsSearchCompare

STIGhub

A free tool to search and browse the entire DISA STIG library. Saves up to 75% in security compliance research time.

Navigation

  • Browse STIGs
  • Search
  • Compare Versions

Resources

  • About
  • Release Notes
  • VPAT
  • DISA STIG Library
STIGs updated 6 hours ago
Powered by Pylon
© 2026 Beacon Cloud Solutions, Inc. All rights reserved.
← Back to SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

V-234846

CAT II (Medium)

The SUSE operating system must have a firewall system installed to immediately disconnect or disable remote access to the whole operating system.

Rule ID

SV-234846r958674_rule

STIG

SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

Version

V2R7

CCIs

None

Discussion

Operating system remote access functionality must have the capability to immediately disconnect current users remotely accessing the information system and/or disable further remote access. The speed of disconnect or disablement varies based on the criticality of mission functions and the need to eliminate immediate or future remote access to organizational information systems. SUSE operating systems are capable to immediately stop remote connections and services by a local system administrator. To immediately disconnect or disable remote access, the firewall needs to be set into panic mode. > sudo firewall-cmd --panic-on To enable remote connection again, panic mode needs to be disabled. > sudo firewall-cmd --panic-off

Check Content

Verify "firewalld" is configured to protect the SUSE operating system. 

Run the following command:

> systemctl status firewalld.service
 firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: disabled)
   Active: active (running) since Wed 2019-11-06 10:58:11 CET; 24h ago
     Docs: man:firewalld(1)
 Main PID: 1105 (firewalld)
    Tasks: 2 (limit: 4915)
   CGroup: /system.slice/firewalld.service
           ??1105 /usr/bin/python3 -Es /usr/sbin/firewalld --nofork --nopid

If the service is not enabled, this is a finding.

If the service is not active, this is a finding.

Fix Text

Configure the SUSE operating system to enable the firewall service. This is needed to be able to immediately disconnect or disable remote access to the whole system.

Enable the "firewalld.service" by running the following command:

> sudo systemctl enable firewalld.service

Start the "firewalld.service" by running the following command:

> sudo systemctl start firewalld.service

To immediately disconnect or disable remote access the firewall needs to be set into panic mode.

> sudo firewall-cmd --panic-on

To enable remote connection again, panic mode needs to be disabled.

> sudo firewall-cmd --panic-off