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Configure the time zone and daylight saving time as described in Table 16. 4. Click Apply. Table 16 Configuration items Item Description Time Zone Set the time zone for the system. Adjust clock for daylight saving time changes Adjust the system clock for daylight saving time changes, which means adding one hour to the current system time. Click Adjust clock for daylight saving time changes to expand the option, as shown in Figure 67. You can configure the daylight saving time changes in the following ways: • Specify that the daylight saving time starts on a specific date and ends on a specific date. The time range must be greater than one day and smaller than one year. For example, configure the daylight saving time to start on August 1st, 2006 at 06:00:00 a.m., and end on September 1st, 2006 at 06:00:00 a.m. • Specify that the daylight saving time starts and ends on the corresponding specified days every year. The time range must be greater than one day and smaller than one year. For example, configure the daylight saving time to start on the first Monday in August at 06:00:00 a.m., and end on the last Sunday in September at 06:00:00 a.m. Figure 67 Setting the daylight saving time Date and time configuration example In this example, Device A is the firewall. Network requirements The local clock of Device A is set as the reference clock, with the stratum of 2. Device B operates in client mode, and uses Device A as the NTP server. 88 Figure 68 Network diagram Configuration procedure 1. On Device A, configure the local clock as the reference clock, with the stratum 2: a. Select Device Management > System Time from the navigation tree. b. Click Network Time Protocol. The page for setting up NTP appears. c. Select 127.127.1.1 from the Local Reference Source list. d. Select 2 from the Stratum list. e. Click Apply. Figure 69 Configuring the local clock as the reference clock 2. On Device B, configure Device A as the NTP server of Device B: a. Select Device Management > System Time from the navigation tree. b. Click Network Time Protocol. The page for setting up NTP appears. c. Enter 1.0.1.11 in the NTP Server 1 box. d. Click Apply. 89 Figure 70 Configuring Device A as the NTP server of Device B 3. Verifying the configuration After the configuration, you can see that the current system time displayed on the System Time page is the same for Device A and Device B. Configuration guidelines A device can act as a server to synchronize the clock of other devices only after its clock has been synchronized. If the clock of a server has a stratum level higher than or equal to that of a client's clock, the client will not synchronize its clock to the server's. The synchronization process takes a period of time. Therefore, the clock status may be unsynchronized after your configuration. In this case, you can refresh the page to view the clock status later on. If the system time of the NTP server is ahead of the system time of the device, and the difference between them exceeds the Web idle time specified on the device, all online Web users are logged out because of timeout. Configuring the system time at the CLI You must synchronize your device with a trusted time source by using NTP or changing the system time before you run it on the network. Network management depends on an accurate system time setting, because the timestamps of system messages and logs use the system time. For NTP configuration, see Network Management and Monitoring Configuration Guide. In a small-sized network, you can manually set the system time of each device. IMPORTANT: If you reboot the device, the system time and date are restored to the factory default. To ensure an accurate system time setting, you must change the system time and date or configure NTP for the device. 90 Configuration guidelines You can change the system time by configuring the relative time, time zone, and daylight saving time. The configuration result depends on their configuration order (see Table 17). In the first column of this table, 1 represents the clock datetime command, 2 represents the clock timezone command, and 3 represents the clock summer-time command. To verify the system time setting, use the display clock command. This table assumes that the original system time is 2005/1/1 1:00:00. Table 17 System time configuration results Command Effective system time Configuration example System time 1 date-time clock datetime 1:00 2007/1/1 01:00:00 UTC Mon 01/01/2007. 2 Original system time ± zone-offset clock timezone zone-time add 1 02:00:00 zone-time Sat 01/01/2005. 1, 2 2, 1 date-time ± zone-offset date-time The original system time outside the daylight saving time range: The system time does not change until it falls into the daylight saving time range. clock datetime 2:00 2007/2/2 clock timezone zone-time add 1 clock timezone zone-time add 1 clock datetime 3:00 2007/3/3 clock summer-time ss one-off 1:00 2006/1/1 1:002006/8/8 2 03:00:00 zone-time Fri 02/02/2007. 03:00:...
Ce manuel est également adapté pour les modèles :Matériel de réseau - HP 200 Unified Threat Management (UTM) Appliance Series (2.82 mb)
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