D-Link DFL-1660 User Manual page 223

6.2.6. The POP3 ALG
The dnsbl CLI command provides a means to control and monitor the operation of the SPAM
filtering module. The dnsbl command on its own without options shows the overall status of all
ALGs. If the name of the SMTP ALG object on which DNSBL SPAM filtering is enabled is
my_smtp_alg then the output would be:
gw-world:/> dnsbl
DNSBL Contexts:
Name
------------------------
my_smtp_alg
alt_smtp_alg
The -show option provides a summary of the SPAM filtering operation of a specific ALG. It is used
below to examine activity for my_smtp_alg although in this case, the ALG object has not yet
processed any emails.
gw-world:/> dnsbl my_smtp_alg -show
Drop Threshold
Spam Threshold
Use TXT records
IP Cache disabled
Configured BlackLists : 4
Disabled BlackLists
Current Sessions
Statistics:
Total number of mails checked : 0
Number of mails dropped
Number of mails spam tagged
Number of mails accepted
BlackList
------------------------- -------- ----- -------- -------- --------
zen.spamhaus.org
cbl.abuseat.org
dnsbl.sorbs.net
asdf.egrhb.net
To examine the statistics for a particular DNSBL server, the following command can be used.
gw-world:/> dnsbl smtp_test zen.spamhaus.org -show
BlackList: zen.spamhaus.org
Status
Weight value : 25
Number of mails checked
Number of matches in list
Number of failed checks (times disabled)
To clean out the dnsbl cache for my_smtp_alg and to reset all its statistical counters, the following
command option can be used:
gw-world:/> dnsbl my_smtp_alg -clean
: 20
: 10
: yes
: 0
: 0
: active
Tip: DNSBL servers
A list of DNSBL servers can be found at
http://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists.
Status Spam
-------- -------- -------- --------
active 156
inactive 0
: 0
: 0
: 0
Status Value Total
active 25
active 20
active 5
active 5
223
Chapter 6. Security Mechanisms
Drop Accept
65 34299
0 0
Matches Failed
0 0
0 0
0 0
0 0
: 56
: 3
: 0
0
0
0
0