Firewalls For Dummies 2nd Edition phần 9 doc

... When researching firewalls, determine what log formats are supported by the firewall. For example, does the firewall support recording data to a database, or does it store the information in propri- etary ... enter the following information on the General tab: Name: A logical name for the interface IP Address: The IP address for the network interface Net Mask: The subnet mask for the...

Ngày tải lên: 14/08/2014, 02:20

... ensure that no private information is sent to the Internet without your knowledge. For all outgoing Web, instant messaging, and e-mail traffic, the firewall scans for private information about you. ... report the excessive intrusion attempts. ߜ Performance: Of course you want performance — who doesn’t? — but this is usually not a problem for personal firewalls. With enterprise fire- wa...

Ngày tải lên: 14/08/2014, 02:20

... . 295 Making Internet Access Faster and More Secure 296 Looking under the Hood: How ISA Works 297 Choosing between the Two Editions 301 Preparing for Installation 302 Firewalls For Dummies, 2nd ... 383 IP Protocol Numbers 383 ICMP Type Numbers 384 TCP and UDP Port Listing 384 Index 393 Firewalls For Dummies, 2nd Edition xvi Chapter 14: Configuring Linux as a Firewall . ....

Ngày tải lên: 14/08/2014, 02:20

... company and what therefore must be secured from attackers. The Internet Acceptable Use policy document and the Security policy docu- ment serve three major purposes: ߜ For network users, the ... information in the packets. ߜ Your firewall is unable to perform NAT: Depending on the specific encryption protocol used to ensure the integrity of the data, the firewall may not be able perform ......

Ngày tải lên: 14/08/2014, 02:20

... IP addresses. If you travel for work and connect from a variety of locations, this configuration won’t work for you. ߜ Enforce authenticated SMTP for outgoing mail: Forcing all clients to authenticate ... Establishing Rules for Simple Protocols What will the future bring? Currently, two draft documents are before the Internet Engineering Task Force (IETF) that propose a method for t...

Ngày tải lên: 14/08/2014, 02:20

... Port RADIUS UDP 192 .168.223.22 Any 192 .168.222.3 1812 Allow Authenti- cation RADIUS UDP 192 .168.223.22 Any 192 .168.222.3 1813 Allow Accounting Internal Any 192 .168.223. Any 192 .168.222. Any Allow Access ... Client 192 .168.222.3 192 .168.222.0/24 192 .168.223.0/24 23.16.16.5 Firewall 192 .168.223.22 39. 100.24.5 DMZ Private Network Figure 11-7: A DMZ with an L2TP tunnel server tha...

Ngày tải lên: 14/08/2014, 02:20

... Client Tunnel server Internet 23.16.16.5 39. 100.24.5 External client 192 .168.223.22 192 .168.223.0/24 192 .168.222.3 192 .168.222.0/24 Figure 12-4: A two- firewall DMZ for L2TP services that support NAT-T 205 Chapter ... software for Windows 98 , Windows Me, or Windows NT 4.0 from Microsoft’s Web site at www.microsoft.com. Internet Connection Sharing: NAT for Dummies Starting...

Ngày tải lên: 14/08/2014, 02:20

... DMZ and your internal network. Internet 192 .168.8.1 192 .168.8.2 192 .168.1.1 23.10.10.200 ISA server 1 ISA server 2 Web server 192 .168.8.80 Mail server 192 .168.8.25 Figure 16-14: A network with ... and the Enterprise Edition, and you begin to wonder, “Which of these editions is right for me?” Because the Enterprise Edition is considerably more expensive than the Standard Editio...

Ngày tải lên: 14/08/2014, 02:20

... support for, 338 as criteria for firewall selection, 362 definition of, 19 20, 89, 92 93 ISA Server supporting, 300 network configurations for, 93 96 protocols for, 95 96 Windows 98 and Me support for, ... Parks For Dummies (0-7645-6204-5) Caribbean For Dummies (0-7645-5445-X) Cruise Vacations For Dummies 2003 (0-7645-54 59- X) Europe For Dummies (0-7645-5456-5...

Ngày tải lên: 14/08/2014, 02:20