MISSION CRITICAL! INTERNET SECURITY phần 4 ppsx
MISSION CRITICAL! INTERNET SECURITY phần 4 ppsx
... Daemons
Secure IDS Sensor
Oracle Server
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144 Chapter 4 • Internet Security Applications
Secure messaging and e-mail can be provided using applications ... Sensor
PIX Firewall
Internal Company Switch
Router
Internet
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Internet Security Applications • Chapter 4 143
passwords, it is possible to col...
MISSION CRITICAL! INTERNET SECURITY phần 8 ppsx
... 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
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3 64 Cha...
MISSION CRITICAL! INTERNET SECURITY phần 1 pot
... 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...
MISSION CRITICAL! INTERNET SECURITY phần 2 pps
... encrypted.
www.syngress.com
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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...
MISSION CRITICAL! INTERNET SECURITY phần 3 docx
... 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.
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Internet Security Applications • Chapter 4 113
How Doe...
MISSION CRITICAL! INTERNET SECURITY phần 5 doc
... 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...
MISSION CRITICAL! INTERNET SECURITY phần 6 docx
... 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...
MISSION CRITICAL! INTERNET SECURITY phần 7 ppt
... 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...
MISSION CRITICAL! INTERNET SECURITY phần 9 pot
... 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...
MISSION CRITICAL! INTERNET SECURITY phần 10 docx
... 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...
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