ZyXEL Communications 3.1 ユーザーズマニュアル
ZyWALL (ZLD) CLI Reference Guide
173
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H A P T E R
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Anti-Virus
This chapter introduces and shows you how to configure the anti-virus scanner.
21.1 Anti-Virus Overview
A computer virus is a small program designed to corrupt and/or alter the operation of other
legitimate programs. A worm is a self-replicating virus that resides in active memory and duplicates
itself. The effect of a virus attack varies from doing so little damage that you are unaware your
computer is infected to wiping out the entire contents of a hard drive to rendering your computer
inoperable.
legitimate programs. A worm is a self-replicating virus that resides in active memory and duplicates
itself. The effect of a virus attack varies from doing so little damage that you are unaware your
computer is infected to wiping out the entire contents of a hard drive to rendering your computer
inoperable.
21.2 Anti-virus Commands
The following table identifies the values required for many of these commands. Other input values
are discussed with the corresponding commands.
are discussed with the corresponding commands.
Table 91
Input Values for General Anti-Virus Commands
LABEL
DESCRIPTION
zone_object
The name of the zone. For the ZyWALL USG 300 and above, use up to 31 characters (a-
zA-Z0-9_-). The name cannot start with a number. This value is case-sensitive.
zA-Z0-9_-). The name cannot start with a number. This value is case-sensitive.
The ZyWALL USG 200 and lower models use pre-defined zone names like DMZ, LAN1,
SSL VPN, WLAN, IPSec VPN, OPT, and WAN.
SSL VPN, WLAN, IPSec VPN, OPT, and WAN.
av_file_pattern
Use up to 80 characters to specify a file pattern. Alphanumeric characters, underscores
(
(
_
), dashes (-), question marks (?) and asterisks (*) are allowed.
A question mark (?) lets a single character in the file name vary. For example, use
“a?.zip” (without the quotation marks) to specify aa.zip, ab.zip and so on.
“a?.zip” (without the quotation marks) to specify aa.zip, ab.zip and so on.
Wildcards (*) let multiple files match the pattern. For example, use “*a.zip” (without the
quotation marks) to specify any file that ends with “a.zip”. A file named “testa.zip” would
match. There could be any number (of any type) of characters in front of the “a.zip” at
the end and the file name would still match. A file named “test.zipa” for example would
not match.
quotation marks) to specify any file that ends with “a.zip”. A file named “testa.zip” would
match. There could be any number (of any type) of characters in front of the “a.zip” at
the end and the file name would still match. A file named “test.zipa” for example would
not match.
A * in the middle of a pattern has the ZyWALL check the beginning and end of the file
name and ignore the middle. For example, with “abc*.zip”, any file starting with “abc”
and ending in “.zip” matches, no matter how many characters are in between.
name and ignore the middle. For example, with “abc*.zip”, any file starting with “abc”
and ending in “.zip” matches, no matter how many characters are in between.
The whole file name has to match if you do not use a question mark or asterisk.
If you do not use a wildcard, the ZyWALL checks up to the first 80 characters of a file
name.
name.