syslogd man page on HP-UX

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syslogd(1M)							   syslogd(1M)

NAME
       syslogd - log system messages

SYNOPSIS
       configfile] markinterval] logfile]

DESCRIPTION
       The  command  reads  and logs messages into a set of files described by
       the configuration file

   Options
       recognizes the following options:

	      Allows all messages except consecutive duplicate messages	 with‐
	      out
				  reordering them.

	      Turn on debugging.

	      Prevent  the  kernel  from directly printing its messages on the
	      system console.
				  In this case, is responsible for routing all
				  kernel messages to their proper destination.

	      Use		  configfile instead of

	      Wait		  markinterval	minutes between mark messages,
				  instead of 20 minutes.

	      Don't listen to socket.

	      Use		  logfile instead of

	      Don't suppress duplicate messages.

	      While logging the messages coming from remote system, IP address
	      will be
				  logged instead of the hostname.

	      Add  priority  and  facility encoded code at the second field of
	      the message line.
				  Refer to syslog(3C) manpage for these prior‐
				  ity and facility encoding codes.

       creates the file if possible, containing a single line with its process
       ID.  This can be used to kill or reconfigure

       To kill send it a terminate signal:

       To make re-read its configuration file, send it a signal:

       collects messages from the UNIX domain socket an Internet domain socket
       specified  in the named pipe and from the kernel log device By default,
       local programs calling send log messages to the UNIX domain socket (see
       syslog(3C)).   If UNIX domain sockets are not configured on the system,
       they write to the named pipe instead.  If INET domain sockets  are  not
       configured,  does  not receive messages forwarded from other hosts, nor
       does it forward messages (see below).

       Each message is one line.  A message can contain a  priority  code  and
       facility	 code as the second field of the line.	Priorities and Facili‐
       ties are defined in the header file

       When is invoked using script, user can update the required  options  in
       file.   By  default  contains option.  Before starting the command, the
       script recreates after putting the contents into the file  By  default,
       is overwritten by the contents of If you want to retain the contents of
       the previous file, configure in You can set the parameter to the number
       of  lines  (in  thousands)  to be retained from the previous file.  For
       example, to retain 20,000 lines from the previous file along  with  the
       contents of the previous in the present put in By default is set to 0.

       configures  itself  when it starts up and whenever it receives a hangup
       signal.	Lines in the configuration file consist of a to determine  the
       message priorities to which the line applies and an The action field is
       separated from the selector by one or more tabs.

       Selectors are semicolon separated lists of priority  specifiers.	  Each
       priority	 has  a indicating the subsystem that generated the message, a
       dot, and a indicating the severity of the message.  Symbolic names  can
       be  used.   An  asterisk	 selects  all facilities.  All messages of the
       specified level or higher (greater severity) are selected.   More  than
       one facility can be selected, using commas to separate them.  For exam‐
       ple:

       selects all facilities at the level  and	 the  and  facilities  at  the
       level.

       The  known facilities and levels recognized by are those listed in sys‐
       log(3C) converted to  lowercase	without	 the  leading  The  additional
       facility	 has  a	 message at priority sent to it every 20 minutes (this
       can be changed with the flag).  The facility is not enabled by a facil‐
       ity  field  containing an asterisk.  The level can be used to disable a
       particular facility.  For example,

       selects all messages except messages.

       The second part of each line describes  where  the  message  is	to  be
       logged if this line is selected.	 There are four forms:

	      ·	 A  file  name	(beginning with a leading slash).  The file is
		 opened in append mode.	 If the file does  not	exist,	it  is
		 created.

	      ·	 A  host name preceded by an character.	 Selected messages are
		 forwarded to the on the named host.

	      ·	 A comma-separated list of users.  Selected messages are writ‐
		 ten to those users' terminals if they are logged in.

	      ·	 An  asterisk.	Selected messages are written to the terminals
		 of all logged-in users.

       Blank lines and lines beginning with a character are ignored.

       For example, the configuration file:

       logs all kernel messages and 20 minute marks onto the  system  console,
       all  mail system messages to and all messages at and above, except mail
       messages, to the file Messages at and above are logged to  the  console
       and  to	the  users and if they are logged in.  messages are written to
       all logged-in users' terminals, and forwarded to the host

       Only a superuser can invoke

   Notes
       logs messages into a set of files.  Once the size of a log file reaches
       2  GB,  stops logging to that file.  You can configure the maximum size
       of log files by setting the variable in The values of can be any	 posi‐
       tive  integer greater than 2, representing the maximum size of the file
       in GB.  When uses the limit imposed by the file system on file size.

       logs messages in a locale-independent fashion as a stream of bytes  and
       will  replace  each newline character in the message with a blank space
       except for the last newline character.  Applications using the services
       of can log messages in different locales. However, be careful when con‐
       figuring so that messages from different locales do not get  logged  to
       the same log file.

WARNINGS
       A  configuration	 file  selector	 selects all messages at the specified
       level The configuration lines:

       cause the logfile to get copies of all messages at level and above.

       Kernel panic messages are not sent to

       All HP-UX kernel messages are treated  as  if  they  had	 the  priority
       level.

       If  is  invoked	with the option and terminates abnormally, kernel mes‐
       sages will not appear on the system console.  In	 that  case,  reinvoke
       without	the  option  to	 enable the kernel to send its messages to the
       system console.

       does not support logging to Therefore, if a named pipe is specified  in
       the configuration file, the behavior of is undefined, and may lose mes‐
       sages if blocked or terminated on a

       does not support long user and group names on the current release,  HP-
       UX 11i V3.

       logs messages in a locale-independent fashion.

	      ·	 assumes  that ASCII control characters do not form intermedi‐
		 ate bytes of the characters of a multibyte locale.

	      ·	 truncates the last character when the maximum length  of  the
		 message is reached, even though it is a valid multibyte char‐
		 acter.

AUTHOR
       was developed by the University of California, Berkeley.

FILES
       The kernel log device
       The named pipe on which	     reads log messages
       The			     UNIX domain socket	 on  which  reads  log
				     messages
       Configuration file
       Configuration file for maximum log size
       Process ID

SEE ALSO
       logger(1), syslog(3C).

								   syslogd(1M)
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