Table of Contents

Chapter 21

 

 

DNS ........................................................................................................................................

427

 

21.1

DNS Overview ...............................................................................................................

427

 

21.2

DNS Server Address Assignment ...................................................................................

427

 

21.3

DNS Servers ....................................................................................................................

427

 

21.4

Address Record ...............................................................................................................

428

 

 

21.4.1 DNS Wildcard .........................................................................................................

428

 

21.5

Name Server Record .......................................................................................................

428

 

 

21.5.1 Private DNS Server ................................................................................................

428

 

21.6

System Screen ................................................................................................................

429

 

 

21.6.1 Adding an Address Record ..................................................................................

431

 

 

21.6.2 Inserting a Name Server Record ..........................................................................

432

 

 

21.7 DNS Cache ....................................................................................................................

433

 

21.8

Configure DNS Cache .....................................................................................................

433

 

21.9

Configuring DNS DHCP ................................................................................................

435

 

 

21.10 Dynamic DNS ..............................................................................................................

436

 

 

21.10.1 DYNDNS Wildcard ...............................................................................................

436

 

 

21.10.2 High Availability ....................................................................................................

437

 

 

21.11 Configuring Dynamic DNS .............................................................................................

437

 

Chapter 22

 

 

Remote Management............................................................................................................

439

 

22.1

Remote Management Overview ......................................................................................

439

 

 

22.1.1 Remote Management Limitations ..........................................................................

440

 

 

22.1.2 System Timeout .....................................................................................................

440

 

 

22.2 WWW (HTTP and HTTPS) .............................................................................................

440

 

 

22.3 WWW ..............................................................................................................................

441

 

 

22.4 HTTPS Example ..............................................................................................................

443

 

 

22.4.1 Internet Explorer Warning Messages .....................................................................

443

 

 

22.4.2 Netscape Navigator Warning Messages ................................................................

443

 

 

22.4.3 Avoiding the Browser Warning Messages ..............................................................

444

 

 

22.4.4 Login Screen ..........................................................................................................

445

 

22.5

SSH ..............................................................................................................................

447

 

 

22.6 How SSH Works ..............................................................................................................

447

 

22.7

SSH Implementation on the ZyWALL ..............................................................................

448

 

 

22.7.1 Requirements for Using SSH .................................................................................

448

 

22.8

Configuring SSH ..............................................................................................................

449

 

22.9

Secure Telnet Using SSH Examples ...............................................................................

450

 

 

22.9.1 Example 1: Microsoft Windows ..............................................................................

450

 

 

22.9.2 Example 2: Linux ....................................................................................................

450

 

 

22.10 Secure FTP Using SSH Example ..................................................................................

451

 

 

22.11 Telnet ...........................................................................................................................

452

 

 

22.12 Configuring TELNET .....................................................................................................

452

 

 

 

 

 

20

 

 

 

 

 

 

ZyWALL 2WG User’s Guide