Juniper-networks J4350 Bedienungsanleitung PDF herunterladen (Seite 115)

Establishing Basic Connectivity

Router Identification

The do m ain name defines the network or su bnetwork that the Services Router

belongs to. Th

e hostnam e refers to the specific machine, while the domain

name is shared amon g all the devices in a given n etwork. Together the

hostname and domain name identify the router in the network.

Root Password

The root user has complete privileges to configure the Services Router, and

manage files i n the router’s file system. Initially, the root password is not defined

on the router

. To ensure basic security, you must define the root password

during initial configuration. If a root password is not defined, you cannot

commit configuration settings to take effect on the router.

Ifyouuseaplain-textpassword,therouter displays the password as a encrypted

string so th

at users viewing the configuration cannot easily see the password.

The root pas

sword must meet the following conditions:

The p asswor

dmustbeatleast6characterslong.

You can incl

ude most cha racter classes in a pa ssword (alphabetic, numeric,

and s pe cial characters), except control characters.

Valid passwords must contain at least one change of case or character class.

ForCommonCriteriaenvironmentsonly,thepasswordmustbebetween10and

20 characters long and must include at least three of the five character classes

(uppercase

letters, lowercase letters, punctuation marks, numbers, and other special

characters). Control characters are not recommended. For mo re information, see

the Secure Configuration Guide for Common C riteria and JUNOS-FIP S.

Time Zone and System Time

You define the time zone for the location where you plan to operate

the Services Router by using a designation that consists of the

following

information for the loca tion:

Name of th

e continent or ocean—For example,

America or Atlantic

Name of th

e major city or other geographic feature in the time zone—For

example ,

Detroit or Azores

A Network Time Protocol (NTP) server provides accurate time across a network.

The router synchronizes the system tim e with the NTP server, and periodically

accesses

the NTP server to maintain the correct time.

The tim e z

one and system time must be accurate so that the router

schedules events and operations as expected.

Basic Connectivity Overview 95

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