Skip to content
Snippets Groups Projects
  • Mike Hibler's avatar
    cd4a03a5
    Attempt to auto-configure NTP for server machines at install time. · cd4a03a5
    Mike Hibler authored
    The template configurations in the new ntpd subdir also address the
    recent NTP amplification attacks that have been going on recently.
    
    NTP configuration is controlled by a few defs-* variables:
    
    NTPSERVER: boss|ops|fs|<external-server-name-or-IP>
      Default: "ops"
      Normally, one of boss, ops, or fs is designated as a local NTP server
      but this can be set to a fully qualified name of some other machine.
      If NTPSERVER is set to an external server, then boss/ops/fs are made
      clients of that server just as any testbed node is.
    
    EXTERNAL_NTPSERVER[1-4]: <external-server-name-or-IP>
      Default: "[0-3].pool.ntp.org"
      If NTPSERVER is one of boss/ops/fs, then these values are used as the
      upstream servers for the local server. These can be changed to four of
      your favorite NTP servers.
    
    NTPDRIFTFILE: <path>
      Default: "/var/db/ntp.drift"
      If NTPSERVER is one of boss/ops/fs, then this is the name of the drift
      file for the local server.
    cd4a03a5
    History
    Attempt to auto-configure NTP for server machines at install time.
    Mike Hibler authored
    The template configurations in the new ntpd subdir also address the
    recent NTP amplification attacks that have been going on recently.
    
    NTP configuration is controlled by a few defs-* variables:
    
    NTPSERVER: boss|ops|fs|<external-server-name-or-IP>
      Default: "ops"
      Normally, one of boss, ops, or fs is designated as a local NTP server
      but this can be set to a fully qualified name of some other machine.
      If NTPSERVER is set to an external server, then boss/ops/fs are made
      clients of that server just as any testbed node is.
    
    EXTERNAL_NTPSERVER[1-4]: <external-server-name-or-IP>
      Default: "[0-3].pool.ntp.org"
      If NTPSERVER is one of boss/ops/fs, then these values are used as the
      upstream servers for the local server. These can be changed to four of
      your favorite NTP servers.
    
    NTPDRIFTFILE: <path>
      Default: "/var/db/ntp.drift"
      If NTPSERVER is one of boss/ops/fs, then this is the name of the drift
      file for the local server.