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Operating Systems Linux SuSE How to record shutdown/startup messages Post 302185519 by Laksmi on Tuesday 15th of April 2008 06:42:40 AM
Old 04-15-2008
How to record shutdown/startup messages

The wtmp file records all logins and logouts. Its format is exactly like utmp except that a null user name indicates a logout on the associated terminal. Furthermore, the terminal name "~" with user name "shutdown" or "reboot" indicates a system shutdown or reboot and the pair of terminal names "|"/"}" logs the old/new system time when date(1) changes it. wtmp is maintained by login(1), and init(1) and some versions of getty(1). Neither of these programs creates the file, so if it is removed record-keeping is turned off.

Hi all,


I got the above paragraph from the below path:
http://www.csie.ntu.edu.tw/~pangfeng...an/wtmp.5.html

But when i shutdown and restarted the system it did not log inthe file /var/log/wtmp.

Only "reboot" events are logged.
"shutdown" and "startup" events are not logged

i tried on both SuSE 10 and SuSE 9.

Please let me know if there are any ways to :

1. To log "startup" and "shutdown" operations of OS.
2. To log "startup" and "shutdown" of any applications in OS.
3. Is it possible to disable this logging ??

Thanks in advance.
 

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utmp(4) 						     Kernel Interfaces Manual							   utmp(4)

NAME
utmp, wtmp - Login records SYNOPSIS
#include <utmp.h> DESCRIPTION
The utmp file records information about who is currently using the system. The file is a sequence of utmp entries, as defined in struct utmp in the utmp.h file. The utmp structure gives the name of the special file associated with the user's terminal, the user's login name, and the time of the login in the form of time(3). The ut_type field is the type of entry, which can specify several symbolic constant values. The symbolic constants are defined in the utmp.h file. The wtmp file records all logins and logouts. A null user name indicates a logout on the associated terminal. A terminal referenced with a tilde (~) indicates that the system was rebooted at the indicated time. The adjacent pair of entries with terminal names referenced by a vertical bar (|) or a right brace (}) indicate the system-maintained time just before and just after a date command has changed the sys- tem's time frame. The wtmp file is maintained by login(1) and init(8). Neither of these programs creates the file, so, if it is removed, record keeping is turned off. See ac(8) for information on the file. FILES
RELATED INFORMATION
ac(8), init(8), last(8), lastcomm(8), login(1), who(1), wtmpconvert(8). delim off utmp(4)
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