Tài liệu Chapter-25-Basic network access-servers ppt

... an introduction to networking, networking concepts, and IP addressing—basically theory and concept information. In this chapter, I’ll begin discussing the applied side of networking. This chapter ... 4.01 Cisco’s Networking Products The last part of Chapter 2 discussed Cisco’s three-layer hierarchical model for network design: core, distribution, and access. Once you have designed your net...

Ngày tải lên: 11/12/2013, 13:15

... wireless networks, cryptographic keys need to be used to individually choose which devices should be connected to a network. Devices allowed onto a network would be given the key to use that network. ... coverage networking, as with wireless or power-line networking, might also restrict the number of networks the homeowner could define. With individual wires, the homeowner can set u...

Ngày tải lên: 11/12/2013, 15:15

... với vai trò 1 Administrator thì không phải build up một network cho chạy là xong, mà phải kiểm soát và phải có phương hướng bảo mật cho network của mình. (Các tên nhân vật và tình huống câu chuyện ... weatherbug có thể là virus, spyware. Giao diện Process Explore Lỗi kết nối FTP Tình huống : có tài khoản FTP trên Windows Server 2003 đã update service packs vừa cài đặt xong, phần mềm FT...

Ngày tải lên: 23/01/2014, 06:20

... Reviewing Networking Protocols 501 The Network Layer The primary responsibility of the Network layer is to move data over an inter- network . An internetwork is made up of multiple network ... device, such as a router. Each network segment is assigned a network address. Network layer protocols build routing tables that are used to route packets through the net...

Ngày tải lên: 24/01/2014, 09:20

... Consider using a network access control solution.  Suggestion: Require users accessing your network remotely to use a Virtual Private Network (VPN) and to only access the network from company-owned ... 3: Protect Your Network (Network Architecture) Have you identified your network enclaves? Have you identified the high-value assets and choke points on your n...

Ngày tải lên: 14/02/2014, 08:20

... sublayer interfaces with the network layer (OSI model Layer 3). Network Layer Addresses Network layer addresses identify a device at the OSI network layer (Layer 3). Network addresses exist within ... and expands to the network endpoints. This topology allows a network to expand dynamically with only one active data path between any two network endpoints. A tree topology n...

Ngày tải lên: 10/12/2013, 14:16

Ngày tải lên: 10/12/2013, 16:15