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Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Appendix B Initializing the Sensor
Basic Sensor Setup
Step 7
You must configure a DNS server or an HTTP proxy server for global correlation to operate:
a.
Enter
yes
to add a DNS server, and then enter the DNS server IP address.
b.
Enter
yes
to add an HTTP proxy server, and then enter the HTTP proxy server IP address and port
number.
Caution
You must have a valid sensor license for global correlation features to function. You can still configure
and display statistics for the global correlation features, but the global correlation databases are cleared
and no updates are attempted. Once you install a valid license, the global correlation features are
reactivated.
Step 8
Enter
yes
to modify the system clock settings:
a.
Enter
yes
to modify summertime settings.
Note
Summertime is also known as DST. If your location does not use Summertime, go to Step m.
b.
Enter
yes
to choose the USA summertime defaults, or enter
no
and choose recurring, date, or disable
to specify how you want to configure summertime settings. The default is recurring.
c.
If you chose recurring, specify the month you want to start summertime settings. Valid entries are
january, february, march, april, may, june, july, august, september, october, november, and
december. The default is march.
d.
Specify the week you want to start summertime settings. Valid entries are first, second, third, fourth,
fifth, and last. The default is second.
e.
Specify the day you want to start summertime settings. Valid entries are sunday, monday, tuesday,
wednesday, thursday, friday, and saturday. The default is sunday.
f.
Specify the time you want to start summertime settings. The default is 02:00:00.
Note
The default recurring summertime parameters are correct for time zones in the United States.
The default values specify a start time of 2:00 a.m. on the second Sunday in March, and a
stop time of 2:00 a.m. on the first Sunday in November. The default summertime offset is 60
minutes.
g.
Specify the month you want summertime settings to end. Valid entries are january, february, march,
april, may, june, july, august, september, october, november, and december. The default is november.
h.
Specify the week you want the summertime settings to end. Valid entries are first, second, third,
fourth, fifth, and last. The default is first.
i.
Specify the day you want the summertime settings to end. Valid entries are sunday, monday, tuesday,
wednesday, thursday, friday, and saturday. The default is sunday.
j.
Specify the time you want summertime settings to end. The default is 02:00:00.
k.
Specify the DST zone. The zone name is a character string up to 24 characters long in the pattern
[A-Za-z0-9()+:,_/-]+$.
l.
Specify the summertime offset. Specify the summertime offset from UTC in minutes (negative
numbers represent time zones west of the Prime Meridian). The default is 60.
m.
Enter
yes
to modify the system time zone.
n.
Specify the standard time zone name. The zone name is a character string up to 24 characters long.