MISSION CRITICAL! INTERNET SECURITY phần 3 docx

... employed. www.syngress.com 115_MC_intsec_ 03 12/12/00 3: 08 PM Page 85 108 Chapter 4 • Internet Security Applications Security Services Most security software can be discussed in terms of the general services it provides. Security ... management application. 115_MC_intsec_04 12/12/00 3: 09 PM Page 134 Internet Security Applications • Chapter 4 1 13 How Does a Digital Signatu...

Ngày tải lên: 14/08/2014, 17:21

... client. ■ NT Server 4.0 with Service Pack 3 or higher installed ■ Internet Information Server 3. 0 or higher installed WARNING If you are using Internet Information Server 3. 0 with Proxy Server 2.0, be aware ... you disable all inbound and outbound traffic on your firewall to TCP and UDP ports 135 , 137 , 139 , and UDP port 138 . This will keep anyone from snooping around on your net...

Ngày tải lên: 14/08/2014, 17:21

... 27 Recovery, 4 Redundant array of disks (RAID), 4 03 reflect (keyword), 32 8, 32 9, 33 1 Reflexive access lists, 32 6 33 9 applying, 33 1 building, 32 8 33 0 example, 33 1 33 4 Regional Bell Operating Companies (RBOCs), ... 50 Telnet, 6, 23 25, 33 , 59, 296, 444 access, 37 3 permitting, 39 7 functionality, 129 Port 23, 269, 34 1 ports, 69, 31 3 protocols, 125 requests, 38 9 sess...

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... (S-HTTP) 32 Transport Layer Security 33 Secure Sockets Layer (SSL) and Transport Layer Security (TLS) 33 Secure Shell (SSH) 33 Filtering 34 Network Layer Security 34 IP Security Protocols (IPSec) 34 Filtering ... Lists) 36 Data-Link Layer Security 37 Authentication 37 Terminal Access Controller Access System Plus (TACACS+) 37 Remote Dial-In User Service (RADIUS...

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... 20/21 TFTP UDP 69 Telnet TCP 23 SMTP TCP 25 DNS TCP 53 POP3 TCP 110 Identd (IRC generally uses 6667-6670) TCP 1 13 NNTP TCP 119 IMAP v4 TCP 1 43 LDAP TCP 38 9 HTTPS over SSL TCP 4 43 Routing Information ... header. www.syngress.com 115_MC_intsec_ 03 12/12/00 3: 08 PM Page 80 68 Chapter 2 • Internetwork Security Concepts Table 2 .3 lists some of the well-known ports with which you s...

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... instead of having to remember 198. 133 .219.25, you can type in www.cisco.com and get to the same page. www.syngress.com 115_MC_intsec_05 12/12/00 3: 13 PM Page 161 Internet Security Applications • Chapter ... 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 1 43 passwords, it is p...

Ngày tải lên: 14/08/2014, 17:21

... data security based on the organization’s needs. 115_MC_intsec_06 12/12/00 3: 16 PM Page 231 Microsoft RAS and VPN for Windows 2000 • Chapter 6 233 These settings are configured by using the Security ... enforcement negotiated Figure 6 .32 To customize security settings for a VPN connection, select Advanced and click the Settings button. 115_MC_intsec_06 12/12/00 3: 16 PM Page 233 M...

Ngày tải lên: 14/08/2014, 17:21

... access to our router on port 30 01. You will need to specify the use of port 30 01 when attempting to access the www.syngress.com 115_MC_intsec_08 12/12/00 3: 09 PM Page 32 3 33 6 Chapter 8 • Traffic Filtering ... Access Control. Internet SMTP DNS 172.22.114.0 S0 E0 Ethernet 115_MC_intsec_08 12/12/00 3: 09 PM Page 33 6 Traffic Filtering on Cisco IOS • Chapter 8 30 7 access-list 17 den...

Ngày tải lên: 14/08/2014, 17:21

... translation for: static (dmz,outside) 207. 139 .221. 130 207. 139 .221. 130 >netmask 255.255.255.128 static (dmz,outside) 207. 139 .221. 131 207. 139 .221. 131 >netmask 255.255.255.128 filter url http ... not necessary. global (inside) 1 207. 139 .221 .3 Set up a global pool using global IP address 207. 139 .221 .3 for NAPT. static (dmz,outside) 207. 139 .221.129 207. 139 .221.129 >...

Ngày tải lên: 14/08/2014, 17:21

... 12/12/00 3: 18 PM Page 432 422 Chapter 10 • Axent Technologies Raptor Firewall 6.5 www.syngress.com Figure 10 .31 This tab details the services and rules that are using this NIC. Figure 10 .32 Interface ... is www.syngress.com 115_MC_intsec_11 12/12/00 3: 13 PM Page 444 438 Chapter 11 • Check Point Software’s Check Point FireWall-1 Introduction This chapter will focus on another software...

Ngày tải lên: 14/08/2014, 17:21