In one of my servers lastlog has some how 000 permission i dont know how but still last,w and who is displaying info so i am getting little confused here. Hi pros, i have some linux redhat servers with a huge lastlog file. The best option would be to cylce the file from time to time. I have devices sending syslog, but the var adm messages file is not updating anymore. The sulog file lists all uses of the su command, not only those that are used to. Many a times, we observe that it takes too much time to login into the server. To keep the var adm directory from growing too large, and to ensure that future crash dumps can be saved, you should remove unneeded files periodically. I have devices sending syslog, but the varadmmessages file is not updating anymore. The most recent messages are in varadmmessages file and in messages. Solution i run cat devnull varadmlastlog and recovered space under fs but var still showing pretty high, this is happening in solaris 10 global zone article installing the. Each time su1m is executed, an entry is added to the sulog file.
Nov 28, 2012 this entry was posted on 20121128 at 17. The most appropriate way to limit the size of var adm wtmpx is using. As such, the file will continually grow until it is rotated. Because of the var adm i think you are using solaris somehow var adm wtmpx is removed. The fmd daemon is responsible for monitoring several aspects of system health. Could anybody tell me the format of var adm lastlog for solaris 2. Kindly help me in finding out the meaning of these. Aug 06, 2009 the solaris fault management facility is designed to be integrated into the service management facility to provide a selfhealing capability to solaris 10 systems.
Some of our solaris 10 servers are monitored using sitescope, which uses telnet to probe certain ports ssh is one of them every few minutes. The solaris 10 0508 patch bundle was created as a result of direct customer feedback after the solaris 10 0807 update 4 release. This is creating an insane amount of lines in var adm. Most of the time the reason being, the wtmpx file is growing, filling up the var partition often part of the root partition. For more information, see the section the service management facility smf. Most of us hail from the great plains region of the united states. Asmodian x joined hir in december 1997 and currently works as a web developer and sysadmin in the education industry. In such cases var adm wtmpx needs to be truncated without causing problems. Place the boot process phases in the correct order for a sparcbased system. Folks a friend asked me to dump out all logins from his varloglastlog file on a red hat box. The size of the file varloglastlog can appear to be overly large on some systems, most especially in 64 bit architectures. Could anybody tell me the format of varadmlastlog for solaris 2. All the information that was provided by the boot messages in previous versions of solaris is now located in the varsvclog directory. Thats why the edit funtions no matter if you use sed, vi, tail, head or whatever.
Clearing out varadmwtmpx and varadmwtmp on solaris 2. Solution i run cat devnull var adm lastlog and recovered space under fs but var still showing pretty high, this is happening in solaris 10 global zone article installing the solaris 9 os from a flash archive dynamically. In extreme cases, it may even prevent the possibility of logging in, because utmpx entries cannot be made, and login asks the user to exec login from the lowest level shell. Is there any other log file that contains the messages or is it just that linux doesnt log great many things. Am thinking to clean up some old file from locations in va. Q1 is there any risks if i delete files in those directories. The sulog file lists all uses of the su command, not only those that are used to switch a user to superuser. As to format, i never really took the time to worry about it so i cant help you, there. This is creating an insane amount of lines in varadm. The etcnf file also contains time stamps of when the last log rotation occurred. This file contains information about lp scheduling. The solaris 10 0508 patch bundle contains the equivalent set of patches contained in the solaris 10 0508 update 5 release image.
Which is causing a cpu spike when i try to copybackup the file. The utmp and wtmp database files are obsolete and are no longer present on the system. You can leave a response, or trackback from your own site. Problem from content of varadmlastlog solutions experts. Last command fails due to huge wtmpx in solaris 10.
Also any documentonline resource for the preventative maintenance of solaris os 5. The solaris fault management facility is designed to be integrated into the service management facility to provide a selfhealing capability to solaris 10 systems. This is a binary file that gets updated upon each user login. Helpful for you to troubleshoot a custombuilt kernel. The solaris table that is directly equivalent is varadmlastlog, which is.
Continuing on the thread of who logged in last, richard hamilton has provided a nice little c program to dump the contents of var adm lastlog. I know i need more backupvolumes but how do i get rid of the problem with huge lastlog files. The lastlog file contains a record for every possible user id uid on the system. The usrsbincron, the sbinrc0, or the sbinrc2 command can be used to clean up the sulog file. The generic solaris installation includes a syslog file that sends most logging information to the var adm messages file. Because the var adm directory stores large files containing messages, crash dumps, and other data, this directory can consume lots of disk space. It formats and prints the contents of the last login log file, var log lastlog which is a usually a very sparse file, including the login name, port, and last login date and time. It is similar in functionality to the bsd program last, also included in linux distributions.
Today, most versions of unix store their log files in varlog. If you run the init command to change run levels, the remote console software. Every time a users loginlogout from your system, the file is updated. Information security services, news, files, tools, exploits, advisories and whitepapers. Although similar information can be extracted from wtmpx4 using last1, reading the lastlog may be simpler or quicker if wtmpx4 grows quickly or is aggressively rolled. Truncate the varadmsulog file periodically to keep the size of the file within a reasonable limit. Ax0n, hir founder and editorinchief is an information security specialist currently working in the luxury goods industry. I tried last 1 userid, if any user not logged in that server then there is no ouptut, the task is to find the users who not logged in server more that 90 days, a script should give the output as servername userid 10jun2018 3days judi jun 18 at 15. Firstly, i would recommend to run the ipfilter firewall software.
Hi friends i have an issue with the space on var file system on our solaris machine,the var files system reached 100%. To keep the varadm directory from growing too large, and to ensure that future crash dumps can be saved, you should remove unneeded files periodically. Continuing on the thread of who logged in last, richard hamilton has provided a nice little c program to dump the contents of varadmlastlog. The varadmmessages in solaris seem to log more system messageserrors compared to varlogmessages in linux. Solaris 10 0508 update 5 patch bundle oracle solaris blog.
One particular shortcoming of the solaris default installation is that auth. Because the varadm directory stores large files containing messages, crash dumps, and other data, this directory can consume lots of disk space. In my linux server lastlog and wtmp files have read permission set for other users 664. Looks like my wtmpx file has reached its size limit. They have been superseded by the extended database contained in the utmpx and wtmpx database files. The last logging writes an entry for every login by every user. Jun 09, 2008 the solaris 10 0508 patch bundle contains the equivalent set of patches contained in the solaris 10 0508 update 5 release image. The security software called tripwire, made by the company of the same. The varadmlastlog file this file contains information used by the last command. It is possible for varadmutmp to reappear on the system. C this option specifies the maximum number of log files to keep. Aug 01, 2011 the following are the 20 different log files that are located under varlog directory. Hpux vs aix vs solaris im not so up to date on my aix, we have very old box running it version 4.
Its been some time since ive done any linux administration and cant remember how to process the. The script above is confirmed to work in solaris 9 and solaris 10, provided perl is available. Although similar information can be extracted from wtmpx4 using last1, reading the lastlog may be simpler or quicker if. To find an accounts record in the file multiply the accounts uid by the lastlog files record size see below. However, there was until the software died at oracle a third party lastlog program written by richard hamilton available. Hir is what happens when 1990sera ezine writers decide to form a blog.
Do we really need to keep the read permission for other users or can i change it to 660 or 640. The solaris table that is directly equivalent is var adm lastlog, which is not mentioned in oracle doco. The generic solaris installation includes a syslog file that sends most logging information to the varadmmessages file. This section describes the files in the var directories, which contain information that varies from machine to machine.
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