Admin Guide

NTP fundamentals............................................................................................................... 127
Overview...................................................................................................................... 127
NTP system implementation model................................................................................. 128
Time distribution within a subnet..................................................................................... 129
Synchronization............................................................................................................ 129
NTP modes of operation................................................................................................ 129
NTP authentication........................................................................................................ 130
NTP configuration using ACLI.............................................................................................. 131
Enabling NTP globally................................................................................................... 132
Adding an NTP server................................................................................................... 133
Configuring authentication keys...................................................................................... 134
NTP configuration using EDM.............................................................................................. 135
Enabling NTP globally................................................................................................... 137
Adding an NTP server................................................................................................... 137
Configuring authentication keys...................................................................................... 138
Chapter 12: Secure Shell...................................................................................................... 140
Secure Shell fundamentals................................................................................................... 140
Secure Shell configuration using ACLI.................................................................................. 150
Downloading the software.............................................................................................. 151
Enabling the SSHv2 server............................................................................................ 151
Setting SSH configuration parameters............................................................................. 152
Verifying and displaying SSH configuration information.................................................... 155
Connecting to a remote host using the SSH client............................................................ 156
Generating user key files............................................................................................... 156
Managing an SSL certificate........................................................................................... 158
Disabling SFTP without disabling SSH............................................................................ 159
Secure Shell configuration using Enterprise Device Manager.................................................. 159
Downloading the software.............................................................................................. 159
Changing Secure Shell parameters................................................................................. 160
Chapter 13: System access................................................................................................. 163
System access fundamentals............................................................................................... 163
Logging on to the system............................................................................................... 163
Managing the system using different VRF contexts.......................................................... 165
ACLI passwords............................................................................................................ 166
Access policies for services............................................................................................ 166
Web interface passwords............................................................................................... 167
Enhanced secure mode authentication access levels....................................................... 167
Password requirements................................................................................................. 169
System access configuration using ACLI............................................................................... 171
Enabling ACLI access levels.......................................................................................... 171
Changing passwords..................................................................................................... 172
Configuring an access policy.......................................................................................... 175
Specifying a name for an access policy........................................................................... 178
Contents
October 2015 Administering Avaya VSP 7200 Series and 8000 Series 7
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