MISSION CRITICAL! INTERNET SECURITY phần 4 ppsx

... Daemons Secure IDS Sensor Oracle Server 115_MC_intsec_05 12/12/00 3:13 PM Page 181 144 Chapter 4 • Internet Security Applications Secure messaging and e-mail can be provided using applications ... Sensor PIX Firewall Internal Company Switch Router Internet 115_MC_intsec_05 12/12/00 3:13 PM Page 176 Internet Security Applications • Chapter 4 143 passwords, it is possible to col...

Ngày tải lên: 14/08/2014, 17:21

... public security0 nameif ethernet1 finance security1 00 www.syngress.com Figure 9.6 Secure department to department. IP Packets Company XYZ Finance LAN 172.16.1.0/ 24 Company LAN 172.16.2.0/ 24 E1 E0 PIX Packets ... LAN 172.16.2.0/ 24 E1 E0 PIX Packets from source 172.16.2.0/ 24 destined for 172.16.1.0/ 24 are denied on interface E0 115_MC_intsec_09 12/12/00 3:11 PM Page 3 84 3 64 Cha...

Ngày tải lên: 14/08/2014, 17:21

... companies. KEY SERIAL NUMBER 001 STP692AD43 002 JY536 842 C4 003 C392K28FA7 0 04 BG57C87BC2 005 22PCA94DZF 006 55ZP2ALT73 007 DUDR527 749 008 XRDYEW42T3 009 MPE2 849 4DS 010 SM359PS25L PUBLISHED BY Syngress ... Internetwork Security Concepts 43 Introduction 44 User Authentication Methods 45 Encryption 46 Authentication Methods 48 Authentication Pitfalls 49 Social Engineering...

Ngày tải lên: 14/08/2014, 17:21

... encrypted. www.syngress.com 115_MC_intsec_01 12/12/00 3: 04 PM Page 37 44 Chapter 2 • Internetwork Security Concepts Introduction The key to network security can be found in understanding the choices and ... firewall. PC PC Switch PC PC Internet Deny source packets 165.32. 24. 17 Packet Filtering Firewall Packets dropped Intruder 165.32. 24. 17 115_MC_intsec_02 12/12/00 3:06 PM Page 59...

Ngày tải lên: 14/08/2014, 17:21

... calculations, for IPv4 and Ipv6. Table 3.1 Mutable and Immutable Fields for IPv4 and IPv6 Field Type Field IP Version Immutable Version v4, v6 Internet Header Length v4 Total Length v4 Identification v4 Protocol ... key. www.syngress.com Figure 4. 5 PGPKeys key management application. 115_MC_intsec_ 04 12/12/00 3:09 PM Page 1 34 Internet Security Applications • Chapter 4 113 How Doe...

Ngày tải lên: 14/08/2014, 17:21

... Settings, expand Security Settings, and click on IP Security Policies. In the right pane you will see the built-in Security Policies. 2. Right-click on IP Security Policies and click on Create IP Security Policy. 3. ... overview of the Windows 2000 security structure. The following section examines Windows 2000’s distributed security services in detail, with the focus on how int...

Ngày tải lên: 14/08/2014, 17:21

... clients, as shown in Figure 6 .44 . www.syngress.com Figure 6 .42 The RRAS properties sheet for the selected remote access server. 115_MC_intsec_06 12/12/00 3:16 PM Page 244 Securing Your Network with ... run command. Figure 6 .48 shows the ipsecmon window. The IP Security Monitor allows you to assess when failures take place in negotiating security associations, when bad Security Para...

Ngày tải lên: 14/08/2014, 17:21

... 1 ip address 192.168.200.1 255.255.255.0 ip access-group 1 14 in ! access-list 1 14 permit tcp any host 172.16 .4. 1 eq telnet access-list 1 14 dynamic cisco timeout 10 permit ip any any ! line vty 0 ... fol- lows: Access-list 1 permit 172.16. 144 .1 Ip port-map Telnet port 8000 list 1 When mapping to a specific subnet the list looks like: Access-list 1 permit 172.16. 144 .0 Ip port-map Tel...

Ngày tải lên: 14/08/2014, 17:21

... outside www.syngress.com 115_MC_intsec_09 12/12/00 3:11 PM Page 40 0 44 2 Chapter 11 • Check Point Software’s Check Point FireWall-1 Content Security: Anti-Virus, URL, and Java/ActiveX Screening Content security determines what Web ... Scanning attempts. External NIC setup with DoS filter. Figure 10 .41 Basic Raptor deployment. 115_MC_intsec_10 12/12/00 3:18 PM Page 42 8 44 4 Chapter...

Ngày tải lên: 14/08/2014, 17:21

... FireWall-1, 64 configuration, 45 8 46 6 FAQs, 47 1 47 2 features, 43 8 45 0 installation, 45 0, 45 3 45 8 password, 44 4 post-installation, 45 7 45 8 requirements, 45 0 45 8 security issues, 46 9 47 0 system requirements, ... Adleman (RSA), 49 , 97, 110 512-bit key, 1 24 algorithm, 30 encryption, 127 Keon Certificate Server, 44 7 encryption, 44 6 public key cryptography, 32 s...

Ngày tải lên: 14/08/2014, 17:21