ZyXEL Communications ZyWALL USG 300 User Manual page 26

Table of Contents
Part IX: System..................................................................................... 649
Chapter 45
System ................................................................................................................................. 651
45.1 Overview .......................................................................................................................... 651
45.1.1 What You Can Do In The System Screens ............................................................ 651
45.2 Host Name ....................................................................................................................... 652
45.3 Date and Time ................................................................................................................ 652
45.3.1 Pre-defined NTP Time Servers List ........................................................................ 654
45.3.2 Time Server Synchronization ................................................................................. 655
45.4 Console Port Speed ......................................................................................................... 656
45.5 DNS Overview ................................................................................................................. 656
45.5.1 DNS Server Address Assignment .......................................................................... 656
45.5.2 Configuring the DNS Screen .................................................................................. 657
45.5.3 Address Record .................................................................................................... 659
45.5.4 PTR Record ........................................................................................................... 659
45.5.5 Adding an Address/PTR Record ............................................................................ 659
45.5.6 Domain Zone Forwarder ....................................................................................... 660
45.5.7 Adding a Domain Zone Forwarder ......................................................................... 660
45.5.8 MX Record ............................................................................................................ 661
45.5.9 Adding a MX Record .............................................................................................. 661
45.5.10 Adding a DNS Service Control Rule .................................................................... 662
45.6 WWW Overview .............................................................................................................. 662
45.6.1 Service Access Limitations .................................................................................... 663
45.6.2 System Timeout ..................................................................................................... 663
45.6.3 HTTPS ................................................................................................................... 664
45.6.4 Configuring WWW Service Control ........................................................................ 665
45.6.5 Service Control Rules ............................................................................................ 667
45.6.6 Customizing the WWW Login Page ....................................................................... 668
45.6.7 HTTPS Example .................................................................................................... 671
45.7 SSH .............................................................................................................................. 678
45.7.1 How SSH Works .................................................................................................... 678
45.7.2 SSH Implementation on the ZyWALL ..................................................................... 679
45.7.3 Requirements for Using SSH ................................................................................. 679
45.7.4 Configuring SSH .................................................................................................... 679
45.7.5 Secure Telnet Using SSH Examples ...................................................................... 680
45.8 Telnet .............................................................................................................................. 682
45.8.1 Configuring Telnet .................................................................................................. 682
45.9 FTP ................................................................................................................................. 683
45.9.1 Configuring FTP ..................................................................................................... 683
45.10 SNMP ........................................................................................................................... 684
45.10.1 Supported MIBs ................................................................................................... 686
45.10.2 SNMP Traps ......................................................................................................... 686
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ZyWALL USG 300 User's Guide