Developers guide

129
}
}
/**
* output of "man snmptrapd"
* *************************************************************
SNMPTRAPD(8) SNMPTRAPD(8)
NAME
snmptrapd - Receive and log snmp trap messages.
SYNOPSIS
snmptrapd [common options] [-P] [-o file] [-s] [-f] [-p
port] [-e] [-l [d0-7]] [-a] [-C] [-c confFile] [-F FORMAT]
DESCRIPTION
Snmptrapd is an SNMP application that receives and logs
snmp trap messages sent to the SNMP-TRAP port (162) on the
local machine.
The log messages are of the form:
Sep 17 22:39:52 suffern snmptrapd: 128.2.13.41: Cold Start
Trap (0) Uptime: 8 days, 0:35:46
Snmptrapd must be run as root so that UDP port 162 can be
opened.
COMMAND LINE ARGUMENTS
In addition to the command arguments described under snm
pcmd(1) the following arguments are understood:
-P Print the logged messages to stderr.
-o file
Logs messages to a given file.
-p port
Specifies the port to run on, if the default 162 is
not desired.
-s Log the messages to syslog(8). These syslog mes
sages are sent with the level of LOG_WARNING, and
to the LOG_LOCAL0 facility (by default). The demon
will also fork away from its caller when the syslog
facilities are used. This is the default unless
the '-P' flag or '-o' flag is used.
-n Don't do reverse translation from IP address to
host name.
-l [d0-7]
Specifies the syslog facility to use, demon or
local[0-7].
-a makes snmptrapd ignore AuthenticationFailure traps
-d Causes the application to dump input and output
packets.
-D Turn debugging output on.
-f Don't fork away from the caller when using sys
log().
-C Don't read the default set of configuration files.
-c confFile
Force the reading of confFile as a configuration
file.
-F FORMAT
When logging to standard output, use the format in
the string FORMAT.
FORMAT is a printf-like string. Snmptrapd interprets the
following formatting sequences:
%% a literal %
%t decimal number of seconds since the operating sys
tem's epoch
%y current year
%m current (numeric) month
%l current day of month
%h current hour
%j current minute
%k current second
%T up-time in seconds (in decimal)
%Y the year field from the up-time
%M the numeric month field from the up-time
%L the day of month field from the up-time
%H the hour field from the up-time
%J the minute field from the up-time
%K the seconds field from the up-time
%A agent's hostname if available, otherwise IP address
%a agent's IP address
%B PDU's hostname if available, otherwise IP address
%b PDU's IP address
%N Enterprise string
%w Trap type (numeric, in decimal)