09-12-2011
Server rebooting unexpectedly
hi,
I have been working on Solaris am very new to linux. My concern is as it goes....our server is getting rebooted automatically and I am not able to understand anything from the var log messages. Could anybody help me out in troubleshooting the issue.
2.6.18-128.el5 #1 x86_64 GNU/Linux is the version of LINUX.
Please help.
Thank You.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I have a problem with a Unix server (SCO Unix version 3.2). If this server is rebooted the own server name and it's IP address is removed from the host table.
How is this possible? How can i solve this problem? (3 Replies)
Discussion started by: FIRE
3 Replies
2. UNIX for Advanced & Expert Users
Hi,
We have a SunFire V880, hooked up with 2 T3 arrays. When ever we issue a reboot command on the system, it hangs at the same place right where it says
syncing file systems done.
To bring it back we shutdown power and it comes clean.
By the way init 6 command works fine.
Has anyone come... (3 Replies)
Discussion started by: smohd
3 Replies
3. UNIX for Dummies Questions & Answers
O/P of the uname -a
Server Server 4.0 3.0 3516 Pentium IV(TM)-ISA/PCI
Server is getting rebooted frequetly...
I don't know what is the problem in server ...
Any help why the server is getting rebooted frequetly.
Can i check what is the problem like in log files (5 Replies)
Discussion started by: srikanthus2002
5 Replies
4. Shell Programming and Scripting
Hi all,
Can any one help me.......
I just want to run one shell script whenever i am rebooting the server. Is there any easy way to do that????
Thanks,
selva (7 Replies)
Discussion started by: Selva_Kumar
7 Replies
5. Shell Programming and Scripting
Hi All,
I have created one script with starting letter 'S' (Example: Start) and stored in the path "/etc/rc.d/".
This script was called automatically when we reboot the server.
In this script i am using 'su' command to switch other user but it is not working, it giving some error.
su... (2 Replies)
Discussion started by: Selva_Kumar
2 Replies
6. Solaris
Hi,
While we rebooting solaris server ,the system going to Maintenance mode instead of login console.
even we are not able to run fsck command . Thanks in advanced for help.
log attached FYI
Executing last command: boot
Boot device: /pci@83,4000/FJSV,ulsa@2,1/disk@0,0 File and args:... (3 Replies)
Discussion started by: helplineinc
3 Replies
7. Red Hat
I am trying to figure out what might causing Production server unexpectedly reboot during last few months ..
Is auto reboot is set , I can check it is not set during the kernel panic but are they any other parameters which I am missing .
-bash-2.05b$ uname -a
Linux PD1011... (4 Replies)
Discussion started by: dba1981
4 Replies
8. Solaris
Hi,
In Linux, I will do it by editing the /etc/rc.d/rc.local . However, I can't find a rc.local file in Opensolaris. So, how can I do it in Opensolaris? I am new to opensolaris, so please teach me step by step. Thanks in advance. (4 Replies)
Discussion started by: AlexCheung
4 Replies
9. Solaris
Deall All,
I have facing some problem. I have a Sun 4500 Server at the customer place. Now the server is not booting mean's once the server is coming up it is automatically rebooting. As this is the critical server for the customer that is use for production .
Can this be solved by... (10 Replies)
Discussion started by: sudhansu
10 Replies
10. Shell Programming and Scripting
Hi,
I have a bash script which connects HP Vertica DB and executes few sql files in sequential manner. One sql file has commands related to one table(stage , base schema tables)and contains 7-8 commands such as creating temp table, inserting data into tables etc.
For few tables, which have high... (7 Replies)
Discussion started by: Dharmatheja
7 Replies
LAST, LASTB(1) User Commands LAST, LASTB(1)
NAME
last, lastb - show a listing of last logged in users
SYNOPSIS
last [options] [username...] [tty...]
lastb [options] [username...] [tty...]
DESCRIPTION
last searches back through the /var/log/wtmp file (or the file designated by the -f option) and displays a list of all users logged in (and
out) since that file was created. One or more usernames and/or ttys can be given, in which case last will show only the entries matching
those arguments. Names of ttys can be abbreviated, thus last 0 is the same as last tty0.
When catching a SIGINT signal (generated by the interrupt key, usually control-C) or a SIGQUIT signal, last will show how far it has
searched through the file; in the case of the SIGINT signal last will then terminate.
The pseudo user reboot logs in each time the system is rebooted. Thus last reboot will show a log of all the reboots since the log file
was created.
lastb is the same as last, except that by default it shows a log of the /var/log/btmp file, which contains all the bad login attempts.
OPTIONS
-a, --hostlast
Display the hostname in the last column. Useful in combination with the --dns option.
-d, --dns
For non-local logins, Linux stores not only the host name of the remote host, but its IP number as well. This option translates the
IP number back into a hostname.
-f, --file file
Tell last to use a specific file instead of /var/log/wtmp. The --file option can be given multiple times, and all of the specified
files will be processed.
-F, --fulltimes
Print full login and logout times and dates.
-i, --ip
Like --dns , but displays the host's IP number instead of the name.
-number
-n, --limit number
Tell last how many lines to show.
-p, --present time
Display the users who were present at the specified time. This is like using the options --since and --until together with the same
time.
-R, --nohostname
Suppresses the display of the hostname field.
-s, --since time
Display the state of logins since the specified time. This is useful, e.g., to easily determine who was logged in at a particular
time. The option is often combined with --until.
-t, --until time
Display the state of logins until the specified time.
--time-format format
Define the output timestamp format to be one of notime, short, full, or iso. The notime variant will not print any timestamps at
all, short is the default, and full is the same as the --fulltimes option. The iso variant will display the timestamp in ISO-8601
format. The ISO format contains timezone information, making it preferable when printouts are investigated outside of the system.
-w, --fullnames
Display full user names and domain names in the output.
-x, --system
Display the system shutdown entries and run level changes.
TIME FORMATS
The options that take the time argument understand the following formats:
YYYYMMDDhhmmss
YYYY-MM-DD hh:mm:ss
YYYY-MM-DD hh:mm (seconds will be set to 00)
YYYY-MM-DD (time will be set to 00:00:00)
hh:mm:ss (date will be set to today)
hh:mm (date will be set to today, seconds to 00)
now
yesterday (time is set to 00:00:00)
today (time is set to 00:00:00)
tomorrow (time is set to 00:00:00)
+5min
-5days
NOTES
The files wtmp and btmp might not be found. The system only logs information in these files if they are present. This is a local configu-
ration issue. If you want the files to be used, they can be created with a simple touch(1) command (for example, touch /var/log/wtmp).
FILES
/var/log/wtmp
/var/log/btmp
AUTHOR
Miquel van Smoorenburg <miquels@cistron.nl>
AVAILABILITY
The last command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-
linux/>.
SEE ALSO
login(1), wtmp(5), init(8), shutdown(8)
util-linux October 2013 LAST, LASTB(1)