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5 . 3 . 7 . 3
M
O D I F Y I N G A R U L E I N A I N P U T
/
F O R W A R D
/
O U T P U T C H A I N
1. In the Basic Firewall screen, click the Input/Forward/Output Chain button, and then click the
edit icon
. The Modify the Firewall Chain screen appears.
2. Edit the fields according to the steps from Adding Rules to the Input/Forward/Output Chain.
5 . 3 . 7 . 4 D
E L E T I N G A R U L E I N A I N P U T
/
F O R W A R D
/
O U T P U T C H A I N
1. Click
Network Services
.
2. Click
Basic Firewall
.
3. Click
Input/Forward/Output Chain
.
4. Click the delete icon
.
5 . 3 . 7 . 5 C
H A N G I N G A C H A I N P R I O R I T Y
In the Input/Forward/Output Chain screens, click
Change Priority
to open a screen that enables
you to change the priority of the chain.
Figure 5-25: Changing the priority of an input/forward/output chain
5 . 3 . 7 . 6 C
H A N G I N G A D E F A U L T P O L I C Y
In the Input/Forward/Output Chain screens, click
Default Policy
to open a screen that enables you
to change the policy of the chain.
Figure 5-26: Changing the default policy of a chain
5.3.8 Telnet
The Telnet settings allow you to specify who may access telnet. Telnet is a terminal emulation
protocol commonly used on the Internet and TCP/IP-based networks which allows users at terminals
to log into a remote device and run a program.
1. Click
Network Services
.
2. Click
Telnet
. The Telnet screen appears: