демон протокола точка-точка (Point-to-Point Protocol Daemon)
Диагностика (Diagnostic)
Messages are sent to the syslog daemon using facility LOG_DAEMON.
(This can be overridden by recompiling pppd with the macro
LOG_PPP defined as the desired facility.) See the syslog(8)
documentation for details of where the syslog daemon will write
the messages. On most systems, the syslog daemon uses the
/etc/syslog.conf file to specify the destination(s) for syslog
messages. You may need to edit that file to suit.
The debug option causes the contents of all control packets sent
or received to be logged, that is, all LCP, PAP, CHAP, EAP, or
IPCP packets. This can be useful if the PPP negotiation does not
succeed or if authentication fails. If debugging is enabled at
compile time, the debug option also causes other debugging
messages to be logged.
Debugging can also be enabled or disabled by sending a SIGUSR1
signal to the pppd process. This signal acts as a toggle.
