개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

utmpd(8)

utmpd(8)                System Administration Commands                utmpd(8)

NAME
       utmpd - utmpx monitoring daemon

SYNOPSIS
       utmpd [-debug]

DESCRIPTION
       The  utmpd  daemon  monitors  and  updates the /var/adm/utmpx file. See
       utmpx(5).


       utmpd receives requests from pututxline(3C) by way of a named pipe.  It
       maintains  a  table of processes and uses poll(2) on /proc files to de‐
       tect process termination. When utmpd detects that a process has  termi‐
       nated,  it  checks  that  the  process has removed its utmpx entry from
       /var/adm/utmpx. If the process' utmpx entry has not been removed, utmpd
       removes the entry. By periodically scanning  the  /var/adm/utmpx  file,
       utmpd also monitors processes that are not in its table.


       utmpd also periodically opens the /var/adm/wtmpx file. The wtmpx file's
       last access time is used by init(8) on reboot to determine when the op‐
       erating system became unavailable if it did not shut down cleanly.

OPTIONS
       -debug

           Run in debug mode, leaving the process connected to the controlling
           terminal. Write debugging information to standard output.


EXIT STATUS
       The following exit values are returned:

       0

           Successful completion.


       >0

           An error occurred.


FILES
       /etc/default/utmpd

           You can set default values for the flags listed below. For example:
           SCAN_PERIOD=600

           SCAN_PERIOD

               The number of seconds that utmpd sleeps between checks of /proc
               to  see  if monitored processes are still alive. The default is
               300.


           MAX_FDS

               The maximum number of processes that utmpd attempts to monitor.
               The default value is 4096.


           WTMPX_UPDATE_FREQ

               The number of seconds that utmpd sleeps between  read  accesses
               of the wtmpx file. The default is 60.



       /var/adm/utmpx

           File  containing  user and accounting information for commands such
           as who(1), write(1), and login(1).


       /proc

           Directory containing files for processes whose  utmpx  entries  are
           being monitored.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/core-os


SEE ALSO
       svcs(1), poll(2), pututxline(3C), proc(5), utmp(5),  utmpx(5),  attrib‐
       utes(7), smf(7), init(8), svcadm(8)

NOTES
       If  the filesystem holding /var/adm/wtmpx is mounted with options which
       inhibit or defer access time updates, an unknown amount of  error  will
       be  introduced into the utmp  DOWN_TIME record's timestamp in the event
       of an uncontrolled shutdown (for example, a crash or  loss  of  power).
       Controlled  shutdowns  will  update  the modify time of /var/adm/wtmpx,
       which will be used on the next boot  to  determine  when  the  previous
       shutdown occurred, regardless of access time deferral or inhibition.


       The  utmpd  service  is  managed  by  the  service management facility,
       smf(7), under the service identifier:

         svc:/system/utmp:default



       Administrative actions on this service, such as enabling, disabling, or
       requesting restart, can be performed  using  svcadm(8).  The  service's
       status can be queried using the svcs(1) command.

HISTORY
       The utmpd daemon was added in Solaris 2.4.

Oracle Solaris 11.4               21 Jun 2021                         utmpd(8)