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Full Discussion: User History and commnad log
Top Forums UNIX for Dummies Questions & Answers User History and commnad log Post 302165966 by otheus on Sunday 10th of February 2008 06:35:44 AM
Old 02-10-2008
Use "last" to see who's logged in
The command you want is "last". It uses the information from wtmp, which after 30 days gets moved to /var/adm/wtmpx.1 or something like that.

Use last by itself to get the standard report. Remote logins will have the IP address in the 3rd column. (Locally spawned sessions, ie, Xterms or virtual terminals will not have an IP address.) Use -f filename to use the older wtmpx file.

As the previous poster hinted at, hackers may be able to cover their tracks, so this only helps with authorized access. To cross-reference, you can also look at the logs from /var/adm/messages*. To enable more verbosity in log messages, you should tweak entries in both /etc/pam.conf, /etc/syslogd.conf, and /etc/ssh/sshd.conf.
 

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LEARN ABOUT SUNOS

utmpx

utmpx(4)							   File Formats 							  utmpx(4)

NAME

       utmpx, wtmpx - utmpx and wtmpx database entry formats

SYNOPSIS

       #include <utmpx.h>
       /var/adm/utmpx
       /var/adm/wtmpx

DESCRIPTION

       The utmpx and wtmpx files are extended database files that have superseded the obsolete utmp and wtmp database files.

       The  utmpx database contains user access and accounting information for commands such as who(1), write(1), and login(1). The wtmpx database
       contains the history of user access and accounting information for the  utmpx database.

USAGE

       Applications should not access these databases directly, but should use the functions described on the getutxent(3C) manual page to  inter-
       act with the utmpx and wtmpx databases to ensure that they are maintained consistently.

FILES

       /var/adm/utmpx	       user access and adminstration information

       /var/adm/wtmpx	       history of user access and adminstrative information

SEE ALSO

       getutxent(3C), wait(3C)wait.h(3HEAD)

SunOS 5.10							    22 Feb 1999 							  utmpx(4)
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