The lastlog file contains a record for every possible user id uid on the system. I have devices sending syslog, but the varadmmessages file is not updating anymore. Clearing out varadmwtmpx and varadmwtmp on solaris 2. Do we really need to keep the read permission for other users or can i change it to 660 or 640. I have devices sending syslog, but the var adm messages file is not updating anymore. Also any documentonline resource for the preventative maintenance of solaris os 5. Because of the varadm i think you are using solaris. Could anybody tell me the format of var adm lastlog for solaris 2. To find an accounts record in the file multiply the accounts uid by the lastlog files record size see below. I am daily getting following messages in varadmmessages. Every time a users loginlogout from your system, the file is updated. The utmp and wtmp database files are obsolete and are no longer present on the system. 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.
For more information, see the section the service management facility smf. Managing system messages oracle solaris administration. You can leave a response, or trackback from your own site. Hir is what happens when 1990sera ezine writers decide to form a blog. As to format, i never really took the time to worry about it so i cant help you, there. Nov 28, 2012 this entry was posted on 20121128 at 17. Today, most versions of unix store their log files in varlog. Continuing on the thread of who logged in last, richard hamilton has provided a nice little c program to dump the contents of varadmlastlog. Looks like my wtmpx file has reached its size limit. This is a binary file that gets updated upon each user login.
Last command fails due to huge wtmpx in solaris 10. Ces fichiers sont generalement places dans le repertoire varlog. The best option would be to cylce the file from time to time. The last logging writes an entry for every login by every user.
The fmd daemon is responsible for monitoring several aspects of system health. Although similar information can be extracted from wtmpx4 using last1, reading the lastlog may be simpler or quicker if. The most recent messages are in varadmmessages file and in messages. Because the var adm directory stores large files containing messages, crash dumps, and other data, this directory can consume lots of disk space. In such cases var adm wtmpx needs to be truncated without causing problems. Asmodian x joined hir in december 1997 and currently works as a web developer and sysadmin in the education industry. All the information that was provided by the boot messages in previous versions of solaris is now located in the varsvclog directory. 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. The usrsbincron, the sbinrc0, or the sbinrc2 command can be used to clean up the sulog file. This is creating an insane amount of lines in varadm. It formats and prints the contents of the last login log file, varloglastlog which is a usually a very sparse file, including the login name, port, and last login date and time. This is creating an insane amount of lines in var adm. One particular shortcoming of the solaris default installation is that auth.
The solaris table that is directly equivalent is varadmlastlog, which is. This section describes the files in the var directories, which contain information that varies from machine to machine. In my linux server lastlog and wtmp files have read permission set for other users 664. Truncate the varadmsulog file periodically to keep the size of the file within a reasonable limit. The solaris 10 0508 patch bundle contains the equivalent set of patches contained in the solaris 10 0508 update 5 release image. 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. Hpux vs aix vs solaris im not so up to date on my aix, we have very old box running it version 4. Many a times, we observe that it takes too much time to login into the server. Problem from content of varadmlastlog solutions experts. Firstly, i would recommend to run the ipfilter firewall software. This file contains information about lp scheduling. Place the boot process phases in the correct order for a sparcbased system. 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 sulog file lists all uses of the su command, not only those that are used to. Helpful for you to troubleshoot a custombuilt kernel. The varadmlastlog file this file contains information used by the last command. The varadmmessages in solaris seem to log more system messageserrors compared to varlogmessages in linux. 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. Thats why the edit funtions no matter if you use sed, vi, tail, head or whatever. Each time su1m is executed, an entry is added to the sulog file. 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. I wanted to change the location of where the messages are the unix and linux forums.
The generic solaris installation includes a syslog file that sends most logging information to the var adm messages file. Is there any other log file that contains the messages or is it just that linux doesnt log great many things. Its been some time since ive done any linux administration and cant remember how to process the. Q1 is there any risks if i delete files in those directories. It is similar in functionality to the bsd program last, also included in linux distributions. C this option specifies the maximum number of log files to keep.
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. Most of the time the reason being, the wtmpx file is growing, filling up the var partition often part of the root partition. Which is causing a cpu spike when i try to copybackup the file. Most of us hail from the great plains region of the united states. Could anybody tell me the format of varadmlastlog for solaris 2. I am daily getting following messages in var adm messages. Before reinventing the wheel does any one have solutionscript for importing varadmwtmpx via the last command on solaris. The var adm messages in solaris seem to log more system messageserrors compared to var logmessages in linux. 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. 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. Because the varadm directory stores large files containing messages, crash dumps, and other data, this directory can consume lots of disk space. Hi friends i have an issue with the space on var file system on our solaris machine,the var files system reached 100%.
Am thinking to clean up some old file from locations in va. Information security services, news, files, tools, exploits, advisories and whitepapers. 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. The generic solaris installation includes a syslog file that sends most logging information to the varadmmessages file.
They have been superseded by the extended database contained in the utmpx and wtmpx database files. 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. Ax0n, hir founder and editorinchief is an information security specialist currently working in the luxury goods industry. The sulog file lists all uses of the su command, not only those that are used to switch a user to superuser. Hi pros, i have some linux redhat servers with a huge lastlog file. 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.
Solaris 10 0508 update 5 patch bundle oracle solaris blog. Folks a friend asked me to dump out all logins from his varloglastlog file on a red hat box. The solaris table that is directly equivalent is var adm lastlog, which is not mentioned in oracle doco. Kindly help me in finding out the meaning of these. 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. I know i need more backupvolumes but how do i get rid of the problem with huge lastlog files. If you run the init command to change run levels, the remote console software. The etcnf file also contains time stamps of when the last log rotation occurred.
However, there was until the software died at oracle a third party lastlog program written by richard hamilton available. The size of the file varloglastlog can appear to be overly large on some systems, most especially in 64 bit architectures. Solaris operating system this blog contains technical informative articles, tips, tricks mainly about solaris operating system and about unix,linux, ssh and open source software in general. It is possible for varadmutmp to reappear on the system.
You can follow any responses to this entry through the rss 2. The solaris fault management facility is designed to be integrated into the service management facility to provide a selfhealing capability to solaris 10 systems. Aug 01, 2011 the following are the 20 different log files that are located under varlog directory. The script above is confirmed to work in solaris 9 and solaris 10, provided perl is available. The most appropriate way to limit the size of var adm wtmpx is using. The security software called tripwire, made by the company of the same. 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. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.
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