The National Security Agency is committed to developing a web site that is easily accessible to all users and that is compliant with Section 508 Standards as defined by the U.S. Rehabilitation Act. If you encounter any difficulties while accessing information on the NSA.gov web site. or if you need further assistance, please contact the NSA Public and Media Affairs Office at nsapao@nsa.gov or call (301) 688-6524. Be sure to include the nature of the problem, the preferred format of the material you require, the web address (URL) of the page where the difficulty was found, and your contact information.
By entering this site, you acknowledge and agree that your use of the site is at your own risk and that none of the parties involved in creating, producing or delivering this site is liable for any loss, injury, claim, liability or damage of any kind resulting in any way from any errors in or omissions from the information; the unavailability or delay of the information; your use of the information or any conclusions you draw from it, regardless of whether you received any assistance from the NSA/CSS or its employee with regard to the information; your use of any equipment in connection with the site or anything obtained from the site; the content of the site, including anything caused by any viruses, bugs, or malfunctions.
Data, software and downloadable code may contain "bugs" (as that term is used in industry) and are provided "as is" and NSA/CSS makes no warranties, implied or express. NSA/CSS expressly disclaims all warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. In no event shall the NSA/CSS or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of such software or code, even if advised of the possibility of such damage.
Source code found on this site is released under the same terms and conditions as the original sources. For example, the patches to the Linux kernel, patches to existing utilities, and some new programs available here are released under the terms and conditions of the GNU General Public License. The patches to some existing utilities and libraries available here are released under the terms and conditions of the BSD license. Some new libraries and new programs available here are released into the public domain. Security-enhanced Linux is released under the same terms and conditions as the original sources. The release includes documentation and source code for both system and some system utilities that were modified to make use of the new features.
Security configuration guides are provided for the Department of Defense and other government agencies requiring security configuration guidelines. The guides contain recommended security settings. They are not intended to replace well-structured policy or sound judgment. The guides do not address site-specific configuration issues. Care must be taken when implementing this guides to address local operational and policy concerns. Do not attempt to implement any of the settings in the guides without first testing in a non-operational environment. All security changes described in the guides are applicable only to specifically identified operating systems or architecture components and should not be applied to any other operating system or architecture components.
Unless expressly stated otherwise to comply with license requirements or copyrights owned by others, information presented on NSA.gov is considered public information and may be distributed or copied. Use of appropriate byline/phone/image credit is requested. In accordance with 50 USC 402, no one may use without permission from NSA/CSS the words 'National Security Agency', the initials, or seal of the National Security Agency in connection with any commercial activity or in a manner intended to convey the impression that such use is approved, endorsed, or authorized by the National Security Agency.
Names, products, and services referenced within this site may be the trade names, trademarks, or service marks of the respective owners. References to commercial vendors and their products or services are provided strictly as a convenience to our users, and do not constitute or imply endorsement by NSA/CSS of any non-Federal entity, event, product, service, or enterprise. For information on the proper referential use of trade names, trademarks and service marks, please see information on this subject at www.uspto.gov.
There may be links to sites that may contain additional information of interest to our users. However, the content at those links is not necessarily within the control of NSA/CSS. In addition, the appearance of these links on NSA.gov does not constitute or imply endorsement by NSA/CSS of any non-Federal entity, event, product, service, or enterprise. Once you link to any selected site, please be aware that you are then subject to the privacy and security policies of the new site. NSA/CSS is not responsible for the privacy and security practices of sites outside of NSA/CSS control.