lastlog

programs, and cores report noteworthy events to file/var/log/messages through Syslog (3). There are also many UNIX programs that create logs, and servers that provide Web services like HTTP and FTP maintain detailed logs.The usual log files are as follows:Access-log recording the transmission of Http/webXferlog several FTP sessionsACCT/PACCT Logging User CommandsMessages Logging information from syslog (some links to syslog files)Aculog Recording Modem activitySudolog records the commands that

First, we will briefly introduce the log files that record login information in Centos. information about the current login user is recorded in the file utmp; logon entry and exit records are recorded in the file wtmp; you can use the lastlog command to view the last logon file. Data Exchange, shutdown, and restart are also recorded in the wtmp file. All records contain timestamps. Each time a user logs on, the login program checks the user's UID in t

Information about user logins is recorded in files such as utmp (/VAR/RUN/UTMP), wtmp (/var/log/wtmp), btmp (/var/log/btmp), and Lastlog (/var/log/lastlog).The WHO, W, and users commands use the utmp (/var/run/utmp) file to query the current logged-on user's information.The last and AC commands use the wtmp (/var/log/wtmp) file to query the information of the user who is currently logged in to the system.Th

%, delete the log file two days ago and keep the log for at least one day. ######################################## ###################### Import OS, sys, time, MySQLdb Def log_w (text ): Logfile = "/usr/local/zabbix/bin/delet. log" Now = time. strftime ("% Y-% m-% d % H: % M: % S ") Tt = now + "\ t" + str (text) + "\ n" F = open (logfile, 'a + ') F. write (tt) F. close () Def mysql_conn (port, lastlog, days ): Try: Ce

useful calculator)Careful you may have the same doubts with me, 999/666 the result seems to be wrong? Baidu a bit, this is because BC presets only output integers, if you want to output the number of decimal places, then you have to execute scale=number, that number is the decimal place, for example:5, Lastlog (see the last login log)Used to display the most recent logon information for all users in the system. The

There are three main logging subsystems in the Linux operating system:(1) Connection time log(2) Process statistics log(3) System and service logsThe connection time log and the process statistic log are driven by the Rsyslog (Legacy syslog) log service, and the system and service logs are driven and managed by the corresponding network service;Connection Time LogThe connection time log is recorded by/var/run/utmp and/var/log/wtmp two files, the system updates automatically, these two files cann

def log_w (text): LogFile = "/usr/local/zabbix/bin/delet.log" now = Time.strftime ("%y-%m-%d%h:%m:%s") tt = now + "\ T" + str (text) + "\ n" f = open (logfile,' A + ') F.write (TT) F.close () def mysql_conn (port,lastlog,days): Try: Center_ip = ' 127.0.0.1 ' Center_user = ' Repl_monitor ' center_passwd = ' Vqmqlgwtaw3k0uv8 ' sql = "PURGE MASTER LOGS to '%s ';"% Lastlog co

duration = 135 (sec) Sep 4 16:10:05 UNIX xinetd [711]: START: ftp pid = 1846 from = 127.0.0.1Sep 4 16:10:05 UNIX xinetd [1846]: USERID: ftp OTHER: rootSep 4 16:16:26 UNIX xinetd [711]: EXIT: ftp pid = 1846 duration = 381 (sec) Sep 4 17:40:20 UNIX xinetd [711]: START: telnet pid = 2016 from = 10.152.8.2/var/log/lastlog This log file records the recent successful logon events and the last unsuccessful logon events, which are ge

-error.log messages.0.gz sendmail. st.4Kerberos. Log messages.1.gz sendmail. st.5Lastlog messages.2.gz sendmail. st.6LPD-errs messages.3.gz sendmail. st.7Maillog messages.4.gz sendmail. st.8Maillog.0.gz messages.5.gz sendmail. st.9Maillog.1.gz news setuid. TodayMaillog.2.gz PPP. Log setuid. YesterdayMaillog.3.gz sendmail. St userlogMaillog.4.gz sendmail. st.0 wtmpSystem logon logThe system will save the logon records of each user, including the user's name and the start and end time of logon.And

~] # Lastlog-u root; lastlog-u yufeiUsername Port From LatestRoot pts/0 192.168.6.1 Fri Jan 14 21:18:05 + 0800 2011Username Port From LatestYufei ** Never logged in **Here, we have filtered the login status of the root and yufei users. You can also use lastlog to view the login status of all users in the system, but you will find a problem: yufei user, the follo

Tags: none date network Inux logon connector action message error messageIn the management system, often encounter a variety of errors and anomalies. To find these errors and exceptions, you need a variety of logs to help locate the problem. Linux logs are stored in the/var/log folder below, the common log file has the following several;/var/log/cron: Record whether the crontab schedule is running properly/VAR/LOG/DMESG: The information generated during the kernel detection process at the beginn

doing ******** W > Who > users****************** 17:43:13 up 10:55, 2 users, Load average:0.00, 0.00, 0.00USER TTY From [emailprotected] IDLE jcpu PCPU whatroot pts/0 192.168.25.100 06aug17 0.00s 1 .95s 0.08s wroot pts/1 192.168.25.100 15:30 2:13m 0.01s 0.01s-bashwho: Can view login information, than W simple # who root pts/ 0 2017-08-01 20:54 (192.168.25.100) Users: Display only the current terminal with what user login, than who also simple whoami: View the current object last: Display a

boot 2.6.32-71. el6.i6 Fri Jan 14)At the top of the page, you will find such information, which allows you to view the user who finally logged on to the system and the user's login status. Including the system start time and the time when the user logs on to the system. [Root @ yufei ~] # Lastlog-u root; lastlog-u yufeiUsername Port From LatestRoot pts/0 192.168.6.1 Fri Jan 14 21:18:05 + 0800 2011Username

Edit/etc/utmp,/usr/ADM/wtmp and/usr/ADM/lastlog. Please use a dedicated editor Example: # Include# Include# Include# Include# Include# Include# Include# Include# Define wtmp_name "/usr/ADM/wtmp"# Define utmp_name "/etc/utmp"# Define lastlog_name "/usr/ADM/lastlog" Int F; Void kill_utmp (WHO)Char * WHO;{Struct utmp utmp_ent; If (F = open (utmp_name, o_rdwr)> = 0 ){While (read (F, utmp_ent, sizeof (utmp_ent

How to capture console. log () Output in JS We know that console. log () can output information to the debugger for developers to view. But what if we want to get the output result of console. log () in JS? In fact, it is not difficult to save the original console. log and replace it with another implementation. The Code is as follows: 1 2 3 4 5 6 7 8 Var lastLog; Console. oldLog = console. log; Console. log = function (str ){ Co

latest five records in/var/log/wtmp. The who command is mainly used to report the information of users currently logged on to the system. The Who command provides the following information: the user logs on to the used system terminal device, user address, host name, and window displayed on X (if X Windows is used) whether the user accepts messages and chat requests from other users. The ac command provides approximate statistics about user connections. We can use the ac command with the flag d

UNIX network administrators primarily rely on system logs to obtain traces of intrusions. Of course, there are also traces of third-party tools recording intrusions into the system. UNIX systems store LOG files in the following common locations:/Usr/adm-earlier versions of UNIX/Var/adm-use this location for a new version/Var/log-use this location for some versions of Solaris, linux BSD, and Free BSD./Etc-put utmp here in most UNIX versions, some also put wtmp here, and syslog. conf hereThe follo

cope with. The typical usage is last-5, which indicates viewing the content of the latest five records in/var/log/wtmp. The WHO command is mainly used to report the information of users currently logged on to the system. The WHO command provides the following information: the user logs on to the used system terminal device, user address, host name, and window displayed on X (if X Windows is used) whether the user accepts messages and chat requests from other users. The AC command provides appro

We know that Console.log () can export the information to the debugger for developers to view. But what if we want to get the output of Console.log () in JS? In fact, it is not difficult to save the original Console.log, and then replace it with another implementation. The code is as follows: 1 2 3 4 5 6 7 8 var Lastlog; Console.oldlog = Console.log; Console.log = function (str) {console.oldlog (str);

1, logstart 1, I 0), old log/var/log/bbbb.log.0 does not exist LOG/VAR/LOG/BBBB.L Og.2 doesn ' t exist--won ' t try to dispose of it running Prerotate script fscreate the context set to Unconfined_u:object_r:va R_log_t:s0 renaming/var/log/aaaa.log to/var/log/aaaa.log.1 Disposename'll be/var/log/aaaa.log.1 fscreate context set To Unconfined_u:object_r:var_log_t:s0 Renaming/var/log/bbbb.log to/var/log/bbbb.log.1 Disposename'll be/var/log/ Bbbb.log.1 running Postrotate script Restart syslog end r