today s increasing network security threats and explain the need to implement a comprehensive security policy to mitigate the threats
The Future of Organization’s Computer Network Security for the Next 5 Years (2011-2015) by Using Delphi Technique doc
... in the system is vulnerable to attack from multiple sources, so an information system is essential and needs a security system which is robust enough to cope with various threats [11] said that ... technique attempts to address “what could/should be” Network security [8] consists of the provisions and policies adopted by the network administrator to prevent and monitor unauthorized access, misuse, ... computer systems and network play an important role in everyday life; using the database via a network or via the web browser or accessing to various information systems via the corporate network...
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A FORMAL APPROACH TO SPECIFY AND DEPLOY A NETWORK SECURITY POLICY ppt
... set of assets In the case of a Firewall the asset to be protected is a LAN and we wish to control access from and towards some other networks (say, Internet) Hence, a rewall is one way to implement ... occurs, the administrator has to nd the faulty rewall rules and update them This process may generate aws into the global security policy We notice also that there is not a global security policy ... This leads to a loss of information: permissions are missing in RBNS model although authors consider the assignment of a service to an IP address as a permission which is semantically weak (2)...
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Establishing A Network Security Policy
... network and gaining access to usernames and password when these are exchanged via unsecured means Sniffer programs, as they are commonly referred as, are small software packages that enable someone ... this command aaa authorization This example allows authorization on the network via TACACS+ aaa authorization network tacacs+ This example specifies TACACS+ as the method for user authorization ... accounting using this command aaa accounting In the following example, RADIUS-style accounting is used to track all usages of EXEC commands and network services, such as PPP, SLIP and ARAP aaa...
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Tài liệu Automatic Management of Network Security Policy pptx
... performas policy validation and rudimentary configuration synthesis We also have a sample Graphical User Interface that allows a systems administrator to specify and validate policy statements against ... but should not access database applications in the Corporate subnetwork.” The terms guest, mail service, database applications, and Corporate subnetwork are abstract tags that can be mapped to actual ... elements and services such as DHCP, DNS zones, host-based access controls, firewalls, and VLAN switches For a general discussion of NESTOR and the details of its architecture, see [20] Systems administrators...
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PRODUCING YOUR NETWORK SECURITY POLICY pdf
... change as well, and so will the risks you are willing to take to business, and so will the tools you use to reduce or counter those risks Because of all this, the security policy process is never ... who is allowed to use them; and under what circumstances Servers A statement of the company standards for servers, what services are enabled or disabled by default, and important distinctions between ... of the policies Make sure that you state what geographies, organizations, and assets you are covering State explicitly which geographies, organizations, and assets the policy does not cover, as...
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how to develop a network security policy
... in shaping a network security policy The risk assessment indicates both the most valuable and the most vulnerable assets A security policy can then be established to focus on security measures ... e-mail messages and explain when e-mail messages must be encrypted This section might also address issues such as whether or not users can play computer games or use resources such as e-mail and ... starting the actual writing of the policy, a thorough risk assessment must be done An assessment of the risks will determine what are the issues that need to be addressed The risk assessment report...
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Guide to Living with Diabetes Preventing and Treating Type 2 Diabetes— Essential Information You and Your Family Need to Know ppt
... diabetes is more of a threat to Native Americans, African Americans, Hispanics, Asians, Pacific Islanders, and Native Alaskans than it is to people of northern European descent In Australia, ... factors as well as genes also play a role Age is also a factor: insulin sensitivity tends to decrease with age Excess stress can cause cell-damaging inflammation, which increases insulin resistance ... that controls the way muscle and fat cells use and store sugar After you eat, your intestines break down and absorb the carbohydrates (or sugars) in the food and release them into the liver and...
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báo cáo khoa học: "Fatty acid profiles and their distribution patterns in microalgae: a comprehensive analysis of more than 2000 strains from the SAG culture collection" docx
... assignments as based on the 1 8S rDNA analyses Species and strains formerly assigned to a single genus Scenedesmus were shown to be actually distributed on several genera by rRNA gene sequence analyses ... multidimensional significance tests (Non-Parametric Multivariate Analysis of Variance, Analysis of Similarity) and visualised as ordinations from multigroup discriminant analysis (Canonical Variates Analysis) ... without mass spectrometry (MS) The large number of data obtained, were added into a database to document the FA profiles of the studied microalgal strains Results and Discussion A database of FA profiles...
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Wireless Network Security: Vulnerabilities, Threats and Countermeasures ppt
... requests, premature successful connection messages, failure messages, and/ or other commands These cause legitimate users to not be able to get on the network and may even cause the network to crash ... level of overall security by adopting a systematic approach to assessing and managing risk This paper discussed the threats and vulnerabilities associated with each of the three basic technology ... components of wireless networks (clients, access points, and the transmission medium) and described various commonly available countermeasures that could be used to mitigate those risks It also stressed...
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Analysis of network security threats and vulnerabilities by development implementation of a security
... has increased the dependence of both organizations and individuals on the information stored and communicated using these systems This leads to a sharp awareness of the need to protect data and ... Above mentioned attacks are shown in figure 4.1 - 33 - Fig.4.1 Basic types of Security Attacks On the basis of these four attacks we can further classify security attacks as passive attacks and ... particular information of domain and the addresses associated with that particular domain IP queries display the range of IP addresses and for which domain that addresses are associated Ping sweep...
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Network Security and The Cisco PIX Firewall P1
... h a Lời giới thiệu từ người tham gia kh a học Topo phòng lab Trần Giáo: Lớp K3D_Khoa CNTT_ĐHTN chapter 1: Course Introduction Mục tiêu kh a học Phần giới thiệu kh a học mục tiêu kh a học Sau ... tin PIX Firewall Cấu hình giao thức riêng biệt để xử lý PIX Firewall Cấu hình phận bảo vệ công SSH Cấu hình AAA PIX Firewall Cấu hình kiểm tra to n lỗi s dụng PIX Firewall Cấu hình ... chapter 1: Course Introduction Chương GIỚI THIỆU KH A HỌC Tổng quan Chương bao gồm chủ đề sau: Mục tiêu kh a học Nộ dung kh a học Trách nhiệm người tham gia kh a học Quản lý...
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Network Security and The Cisco PIX Firewall P3
... K3D_Khoa CNTT_ĐHTN Chapter 3: cisco pix firewall models and features Đạt s nhận dạng phiên, đ a IP cổng cho kết nối TCP Logs the data in a stateful session flow table and creates a session ... Firewall Adaptive Security Algorithm (ASA – thuật to n an ninh thích ứng) ASA trì an ninh vành đai mạng điều khiển PIX Firewall Thiết kế stateful, connection-oriented (kết nối định hướng) ASA tạo ... Chapter 3: cisco pix firewall models and features Trần Giáo: Lớp K3D_Khoa CNTT_ĐHTN Chapter 3: cisco pix firewall models and features Tường l a Phần đ a cách giải thích tường l a Theo cách...
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Network Security and The Cisco PIX Firewall P2
... Lớp K3D_Khoa CNTT_ĐHTN CHAPTER 2: Network Security and The Cisco PIX Firewall Business impact and risk asessment (tác động kinh doanh đánh giá rủi do) – Liên quan đến trạng thái an ninh mạng, ... LAN switches, routers, gateways 12 Trần Giáo: Lớp K3D_Khoa CNTT_ĐHTN CHAPTER 2: Network Security and The Cisco PIX Firewall thiết bị khác mà kết nối người s dụng với server Các tảng mạng Cisco ... (CA) Application security solutions (các giải pháp an ninh ứng dụng) – bao gồm s n phẩm ứng dụng bảo vệ server host Perimeter security solutions (các giải pháp an ninh vành đai) – bao gồm s n...
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Network Security and The Cisco PIX Firewall P6
... 0:05:00 si p 0:30:00 sip media 0:02:00 timeout uauth 0:05:00 absolute aaa-server TACACS+ protocol tacacs+ aaa-server RADIUS protocol radius no snmp-server location no snmp-server contact snmp-server ... hiển thị x a nội dung translation slot translation slot mập mờ sau thay đổi v a tạo Luôn s dụng lệnh clear xlate reload lại sau thêm, thay đổi gỡ bỏ lệnh alias, global, nat, route, static cấu ... dạng đ a mạng hay đ a broadcast Nó s dụng IP global mask từ lệnh static để phân biệt đ a IP thông thường từ mạng hay đ a broadcast, sau PIX Firewall cấm xlate đ a IP mạng đ a broadcast với gói tin...
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Network Security and The Cisco PIX Firewall P5
... Giáo_Khoa CNTT_ĐH Thái Nguyên CHAPTER 5: BASIC CONFIGURATION OF THE CISCO PIX FIREWALL Mức độ an ninh ASA (ASA Security Levels) Phần thảo luận Adaptive Security Algorith (ASA) ASA security levels ASA ... 0:05:00 si p 0:30:00 sip media 0:02:00 timeout uauth 0:05:00 absolute aaa-server TACACS+ protocol tacacs+ aaa-server RADIUS protocol radius no snmp-server location no snmp-server contact snmp-server ... interface resets babbles, late collisions, deferred lost carrier, no carrier interface ethernet2 "dmz" is up, line protocol is up Hardware is i82558 ethernet, address is 0090.2725.060d IP address...
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Network Security and The Cisco PIX Firewall P4
... giao diện có giới hạn (Restriced Interface Options): Fast Ethernet Fast Ethernet + VPN Accelerator Gigabit Ethernet Gigabit Ethernet + VPN Accelerator 4-Port Fast Ethernet 4-Port Fast ... Ethernet Gigabit Ethernet + VPN Accelerator Gigabit Ethernet + VPN Accelerator 4-port Fast Ethernet 4-port Fast Ethernet + FE 4-port Fast Ethernet + Gigabit Ethernet 4-port Fast Ethernet ... 4-Port Fast Ethernet + VPN Accelerator Dưới tùy chọn giao diện không giới hạn(Unrestricted Interface Options) PIX Firewall 525: Fast Ethernet Fast Ethernet + VPN Accelerator Gigabit Ethernet...
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Cryptography and network security principles and practice, 5th edition
... Internet Security Glossary 1.3 SECURITY ATTACKS A useful means of classifying security attacks, used both in X.800 and RFC 2828, is in terms of passive attacks and active attacks A passive attack attempts ... defining security attacks, mechanisms, and services Security attacks are classified as either passive attacks, which include unauthorized reading of a message of file and traffic analysis or active attacks, ... numerous ways as we examine the various security threats and mechanisms throughout this book 1.2 THE OSI SECURITY ARCHITECTURE To assess effectively the security needs of an organization and to evaluate...
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Tài liệu Network Security and The Cisco PIX Firewall P8 pdf
... Network Places chọn Properties C a s Network and Dial-up Connections mở Bước 2: nháy đúp vào Local Area Connection Local Area Connection Status mở Bước 3: click vào Propertise C a s Local Area ... Properties mở Bước 5: chọn Obtain an IP address automatically Bước 6: click Ok Bước 7: OK Bước 8: đóng c a s Local Area Connection Status Bước 9: đóng c a s Network and Dial-up Connections Bước ... subnet mask từ DHCP server Đ a sau s dụng đ a global PAT Chính điều làm cho ISP không cần thiết phải gán đ a IP tĩnh cho PIX Firewall Cú pháp lệnh ip address dhcp: ip address if_name dhcp [setroute]...
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Tài liệu Network Security and The Cisco PIX Firewall P7 ppt
... 0:05:00 si p 0:30:00 sip media 0:02:00 timeout uauth 0:05:00 absolute aaa-server TACACS+ protocol tacacs+ aaa-server RADIUS protocol radius no snmp-server location no snmp-server contact snmp-server ... Inside Partnernet Nat DMZ Outside Nat DMZ Partnernet Nat DMZ Inside Static Partnernet Outside Nat Partnernet DMZ Static Partnernet Inside Static Outside DMZ Static Ouside Partnernet Static Outside ... thông điệp “connected to 172.16.P.2” Log into FTP session User (172.16.P.2(none)): anonymous 331 Anonymous access allowed, send identity (e-mail name) as password Password: cisco thoát phiên FTP...
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