I'm a newbie in Linux Programming.
Got some 500 processes running and I have around 20-30 logs updating for every 2mins on a server. The logs which i'm referring usually contains book name,run ids(not PID's),process name etc etc.
I'm interested in finding out whether some particular run id is running/stuck/failed with error.
Hi all
i want to know what are the logs we need to check when the server is down and how to resolve to make server UP? please help me with this (8 Replies)
Dear All,
Pls help me on this issue.
i want to write a script to check whether files updation happening in cuttent time or not.
i have set of files in directory which wil update in time basis..
Requirement: If the files are updating in system time i just want to print "files are... (6 Replies)
Hi All,
Can anyone help to write the script to check files updation?
i have files as mentioned below. which will be updated some time.
i just want to check the last file is updating the data for last 15 mins or not.
if its not updating i want to print NOT OK. if its updating data i want... (1 Reply)
I have 5 log files under different directores . say for eg abc under /home/dir1 , xyz under home/dir2 . is there a script that i can run from say /home that searchers all these files for string or combination of strings and write to a file
eg search file by timestamp|keyword
o/p in a file (6 Replies)
I have nearly 25+ tail commands which we need to verify the logs if there is any errors on current or previous date with time. I need this to be automate and send email to me with details. Please help me on this. (5 Replies)
HI,
In our project daily we need to check for some errors in around 45-50 folders. Please let me know if there is any utility tool using which 1 can check each folder and file for error.
Use: Monday we are checking if there were any error in files generated on Monday
Tuesday to Wednesday we... (7 Replies)
Hi,
My goal is to monitor the response time from the access logs of nginx server. I am using gawk to print the needed fields - 'response time' and 'name of the service' from nginx logs.
Command: gawk '($6 ~ /cloudservice/) {print $10, $6}' access.log
Output:
0.645 /nc/cloudservice... (6 Replies)
Hello Experts,
I need to write a shell script to check if a file is open and something is being written to it. I want to know how OS handles it. I checked with lsof command but it is not working. For a test I did this.
while true; do echo `date` >>abc.txt; done
then I checked
lsof |... (5 Replies)
Discussion started by: shekhar_4_u
5 Replies
LEARN ABOUT DEBIAN
auditd
AUDITD(8) System Administration Utilities AUDITD(8)NAME
auditd - The Linux Audit daemon
SYNOPSIS
auditd [-f] [-l] [-n] [-s disable|enable|nochange]
DESCRIPTION
auditd is the userspace component to the Linux Auditing System. It's responsible for writing audit records to the disk. Viewing the logs is
done with the ausearch or aureport utilities. Configuring the audit rules is done with the auditctl utility. During startup, the rules in
/etc/audit/audit.rules are read by auditctl. The audit daemon itself has some configuration options that the admin may wish to customize.
They are found in the auditd.conf file.
OPTIONS -f leave the audit daemon in the foreground for debugging. Messages also go to stderr rather than the audit log.
-l allow the audit daemon to follow symlinks for config files.
-n no fork. This is useful for running off of inittab
-s=ENABLE_STATE
specify when starting if auditd should change the current value for the kernel enabled flag. Valid values for ENABLE_STATE are "dis-
able", "enable" or "nochange". The default is to enable (and disable when auditd terminates). The value of the enabled flag may be
changed during the lifetime of auditd using 'auditctl -e'.
SIGNALS
SIGHUP causes auditd to reconfigure. This means that auditd re-reads the configuration file. If there are no syntax errors, it will proceed
to implement the requested changes. If the reconfigure is successful, a DAEMON_CONFIG event is recorded in the logs. If not success-
ful, error handling is controlled by space_left_action, admin_space_left_action, disk_full_action, and disk_error_action parameters
in auditd.conf.
SIGTERM
caused auditd to discontinue processing audit events, write a shutdown audit event, and exit.
SIGUSR1
causes auditd to immediately rotate the logs. It will consult the max_log_size_action to see if it should keep the logs or not.
SIGUSR2
causes auditd to attemp to resume logging. This is usually used after logging has been suspended.
FILES
/etc/audit/auditd.conf - configuration file for audit daemon
/etc/audit/audit.rules - audit rules to be loaded at startup
NOTES
A boot param of audit=1 should be added to ensure that all processes that run before the audit daemon starts is marked as auditable by the
kernel. Not doing that will make a few processes impossible to properly audit.
The audit daemon can receive audit events from other audit daemons via the audisp-remote audispd plugin. The audit daemon may be linked
with tcp_wrappers to control which machines can connect. If this is the case, you can add an entry to hosts.allow and deny.
SEE ALSO auditd.conf(5), audispd(8), ausearch(8), aureport(8), auditctl(8), audit.rules(7).
AUTHOR
Steve Grubb
Red Hat Sept 2007 AUDITD(8)
03-07-2013
