Cisco IPS 7.1 Installation Guide download pdf (Page 201)

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Cisco Intrusion Prevention System Appliance Hardware 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.

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