Technical data

9.5.4 Modifying and Deleting Entries .............................. 9–8
9.6 Solving BOOTP Problems ..................................... 9–8
10 Configuring TFTP
10.1 Key Concepts ............................................... 10–1
10.2 Setting up the TFTP Service . . . ................................ 10–1
10.2.1 Transferring Data to the TFTP Host . . . ....................... 10–2
10.2.2 TFTP Management Commands .............................. 10–2
10.2.3 TFTP Logical Names ...................................... 10–2
10.2.4 TFTP Startup and Shutdown ................................ 10–2
10.2.5 Enabling and Disabling TFTP ............................... 10–3
10.3 TFTP Security .............................................. 10–4
10.4 Solving TFTP Problems ....................................... 10–4
11 Configuring the Portmapper
11.1 Configuring Services to Use the Portmapper ....................... 11–1
11.2 Portmapper Startup and Shutdown .............................. 11–2
11.3 Displaying Portmapper Information.............................. 11–2
12 Configuring and Managing NTP
12.1 Key Concepts ............................................... 12–1
12.1.1 Time Distributed Through a Hierarchy of Servers . ............... 12–2
12.1.2 How Hosts Negotiate Synchronization . . ....................... 12–2
12.1.3 How the OpenVMS System Maintains the System Clock ........... 12–3
12.1.4 How NTP Makes Adjustments to System Time . . . ............... 12–3
12.1.5 Configuring the Local Host . ................................ 12–3
12.2 NTP Service Startup and Shutdown ............................. 12–4
12.3 Configuring Your NTP Host .................................... 12–4
12.3.1 Creating the Configuration File .............................. 12–5
12.3.2 Configuration Statements and Options . ....................... 12–5
12.3.2.1 NTP Monitoring Options ................................ 12–6
12.3.2.2 Sample NTP Configuration File ........................... 12–8
12.3.3 Using NTP with Another Time Service . ....................... 12–9
12.4 Configuring NTP as Backup Time Server . . ....................... 12–9
12.5 Operating with Time Zone Offsets ............................... 12–9
12.6 NTP Event Logging . . ........................................ 12–10
12.6.1 Sample NTP Log File ...................................... 12–13
12.7 NTP Authentication Support . . . ................................ 12–13
12.7.1 NTP Authentication Commands.............................. 12–14
12.7.2 Authentication Key Format . ................................ 12–14
12.8 NTP Utilities ............................................... 12–15
12.8.1 Setting the Date and Time with NTPDATE ..................... 12–16
12.8.2 Tracing a Time Source with NTPTRACE ....................... 12–16
12.8.3 Making Run-Time Requests with NTPDC ...................... 12–17
12.8.3.1 NTPDC Interactive Commands ........................... 12–18
12.8.3.2 NTPDC Control Message Commands ....................... 12–19
12.8.3.3 NTPDC Request Commands ............................. 12–21
12.8.4 Querying the NTP Server with NTPQ . . ....................... 12–22
12.8.4.1 NTPQ Control Message Commands . ....................... 12–24
12.9 Solving NTP Problems ........................................ 12–27
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