CNET Wireless-G CardBus Adapter CWC-800 Instrukcja Użytkownika Pobierz pdf (Strona 45)

UC-7400-LX Plus User’s Manual Managing Communications

4-4

NOTE

The CGI function is enabled by default. If you want to disable the function, modify the file

/etc/apache/conf/httpd.conf. When you develop your own CGI application, make sure your CGI

file is executable.

192.168.3.127 - PuTTY

root@Moxa:/usr/www/cgi-bin# ls –al

drwxr—xr-x 2 root root 0 Aug 24 1999

drwxr—xr-x 5 root root 0 Nov 5 16:16

-rwxr—xr-x 1 root root 268 Dec 19 2002 printenv

-rwxr—xr-x 1 root root 757 Aug 24 1999 test-cgi

root@Moxa:/usr/www/cgi-bin#

IPTABLES

IPTABLES is an administrative tool for setting up, maintaining, and inspecting the Linux kernel’s

IP packet filter rule tables. Several different tables are defined, with each table containing built-in

chains and user-defined chains.

Each chain is a list of rules that apply to a certain type of packet. Each rule specifies what to do

with a matching packet. A rule (such as a jump to a user-defined chain in the same table) is called a

“target.”

The UC-7400-LX Plus supports 3 types of IPTABLES table: Filter tables, NAT tables, and

Mangle tables:

A. Filter Table—includes three chains:

INPUT chain

OUTPUT chain

FORWARD chain

B. NAT Table—includes three chains:

PREROUTING chain—transfers the destination IP address (DNAT)

POSTROUTING chain—works after the routing process and before the Ethernet device

process to transfer the source IP address (SNAT)

OUTPUT chain—produces local packets

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CNET Wireless-G CardBus Adapter CWC-800 Instrukcja Użytkownika Strona 45