tailieunhanh - Manageable Network Plan

Electronic mail on the Internet has been an important form of communication for some years now. Various methods of securing electronic mail have been suggested (see our overview in section ). One of the solutions that has seen commercial success is S/MIME. A major problem in using S/MIME to secure mail is locating certificates. Clients often support several methods to locate certificates, ., from LDAP servers or from white-pages on the Internet. Most of these services have the drawback of requiring configuration by the user; configuration of the LDAP server hostname, the address to the whitepage service, of the LDAP base objects, etc | Manageable Network Plan Networks often become unmanageable and rapidly get out of control. An unmanageable network is insecure. The Manageable Network Plan is a series of milestones to take an unmanageable and insecure network and make it manageable more defensible and more secure. It provides overall direction offers suggestions calls out crucial security tips and gives references to books Web resources and tools. Comments or feedback manageable@ The Manageable Network Note to Milestone 1 Prepare to Milestone 2 Map Your Milestone 3 Protect Your Network Network Architecture .8 Milestone 4 Reach Your Network Device Accessibility .11 Milestone 5 Control Your Network User Access .13 Milestone 6 Manage Your Network Part I Patch Management .15 Milestone 7 Manage Your Network Part II Baseline Management .17 Milestone 8 Document Your And Network Security Business Functionality Backup Incident Response and Disaster Recovery Security Host-Based Security Executable Content Virus Scanners and Host Intrusion Prevention Systems HIPS .24 Personal Electronic Device PED Data-at-Rest Network Monitoring and Control Network Access Protection Control NAP NAC .26 Security Gateways Proxies and Remote Access Network Security Log Configuration and Change Audit Strategy. 29 Quick Readings Tools Mentioned . 32 Index . 33 Version 1 of 33 5 April 2012 The Mitigations Group National Security Agency 9800 Savage Road Fort Meade MD 20755-6704 ia mitigation_guidance Manageable Network Plan The Manageable Network Plan Have you discovered that your network is insecure Are your network administrators always running around putting out fires Does it seem to be impossible to get anything implemented .