[bash] script is filling up my /var/log Post: 303027296

Sponsored Content

Top Forums Shell Programming and Scripting [bash] script is filling up my /var/log Post 303027296 by soichiro on Thursday 13th of December 2018 01:34:22 AM

12-13-2018

Registered User

[bash] script is filling up my /var/log/auth.log

I am trying to create a script that checks if my VPN connection is up and running...
Everything seems to work as except but for some reason, the script fills up my /var/log/auth.log with the below information

Code:

Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root
Dec 13 01:07:44 debian sudo: soichiro : TTY=pts/0 ; PWD=/home/soichiro/Desktop ; USER=root ; COMMAND=/sbin/ifconfig tun0
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session opened for user root by (uid=0)
Dec 13 01:07:44 debian sudo: pam_unix(sudo:session): session closed for user root

This is my script

Code:

#!/bin/bash

vpn_status(){
	while true; do
		if ( sudo ifconfig tun0 | grep -q "00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00" ) &>/dev/null; then
			echo "$(tput bold)$(tput setaf 2)"
			printf '%s\r' "VPN scrypt is up and running..."
		else	
			echo "$(tput bold)$(tput setaf 1)"
			printf '%s\r' "VPN is Down..."
		fi 
   	done
}

vpn_status

Could someone please explain to me why/what I am doing wrong?

Last edited by soichiro; 12-13-2018 at 03:21 AM..

soichiro

View Public Profile for soichiro

Find all posts by soichiro

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Process responsible for filling up /var/tmp

Hi, Help ! - I have a process which I cannot find that is writing to /var/tmp every 10 minutes and filling up my partition, it is also filling up my wtmpx file. I have some software error correction for a faulty DIMM at the moment - is this likely to be causing this as well as over-loading my...

2. UNIX for Advanced & Expert Users

diff command filling /var filesystem space

Hi, I am using diff command to check difference between two files.Both files are very big and when i execute this command /var temp space is filled up almost 99%. Can any one please tell me is there any way i can specify directory name which has more space so that diff can use that dir for...

3. Solaris

diff b/w /var/log/syslog and /var/adm/messages

hi sirs can u tell the difference between /var/log/syslogs and /var/adm/messages in my working place i am having two servers. in one servers messages file is empty and syslog file is going on increasing.. and in another servers message file is going on increasing but syslog file is...

4. Solaris

Difference between /var/log/syslog and /var/adm/messages

Hi, Is the contents in /var/log/syslog and /var/adm/messages are same?? Regards

5. Emergency UNIX and Linux Support

[Solved] /var is filling continuously

Hi All, I have Solaris-10 machine. Yesterday I patched it with Solaris-10 patch Cluster. Since then glance software is filling up /var/core continuously. In every few minutes, it will fill /var to 100%. Glance runs through /etc/init.d/mwa and I already stopped it, still core files are...

6. HP-UX

Script to monitor /var/opt/resmon/log/event.log file

AM in need of some plugin/script that can monitor HP-UX file "/var/opt/resmon/log/event.log" . Have written a scrip in sh shell that is working fine for syslog.log and mail.log as having standard format, have interrogated that to Nagios and is working as I required . But same script failed to...

7. Emergency UNIX and Linux Support

Error filling /var/adm/messages

I have Solaris-11 non-global zone running under Solaris-11 global zone. Every few minutes, this message is getting in /var/adm/message of non-global zone Aug 31 08:31:53 zonnjc002dbp01 statd: statd: cannot talk to statd at NAS1, RPC: Timed out(5) NAS1 is already mounted as NFS and working...

8. Shell Programming and Scripting

BASH script to export var to env

Hi all I am trying to create a script that takes a password input then writes that to a tmp file and puts that tmp file path in my env as a var. It does everything but export the my env and I am unsure why. I am using Ubuntu 12.4 #!/bin/bash read -s -p "Enter Password: " gfpassword...

9. Shell Programming and Scripting

Is there a BASH script allowing me to grep specifics from /var/log/messages?

I am wondering if there is a script (if one exists, not confident in my own scripting ability) that is able to bring up specified information from the /var/log/messages. I need to show logged traffic on specific dates and times and protocols (ie. Show all insecure FTP traffic (most likely via...

10. Shell Programming and Scripting

Transfer the logs being thrown into /var/log/messages into another file example /var/log/volumelog

I have been searching and reading about syslog. I would like to know how to Transfer the logs being thrown into /var/log/messages into another file example /var/log/volumelog. tail -f /var/log/messages dblogger: msg_to_dbrow: no logtype using missing dblogger: msg_to_dbrow_str: val ==...

LEARN ABOUT CENTOS

pam_timestamp_check

PAM_TIMESTAMP_CHECK(8)						 Linux-PAM Manual					    PAM_TIMESTAMP_CHECK(8)

NAME

       pam_timestamp_check - Check to see if the default timestamp is valid

SYNOPSIS

       pam_timestamp_check [-k] [-d] [target_user]

DESCRIPTION

       With no arguments pam_timestamp_check will check to see if the default timestamp is valid, or optionally remove it.

OPTIONS

       -k
	   Instead of checking the validity of a timestamp, remove it. This is analogous to sudo's -k option.

       -d
	   Instead of returning validity using an exit status, loop indefinitely, polling regularly and printing the status on standard output.

       target_user
	   By default pam_timestamp_check checks or removes timestamps generated by pam_timestamp when the user authenticates as herself. When the
	   user authenticates as a different user, the name of the timestamp file changes to accommodate this.	target_user allows to specify this
	   user name.

RETURN VALUES

       0
	   The timestamp is valid.

       2
	   The binary is not setuid root.

       3
	   Invalid invocation.

       4
	   User is unknown.

       5
	   Permissions error.

       6
	   Invalid controlling tty.

       7
	   Timestamp is not valid.

NOTES

       Users can get confused when they are not always asked for passwords when running a given program. Some users reflexively begin typing
       information before noticing that it is not being asked for.

EXAMPLES

	   auth sufficient pam_timestamp.so verbose
	   auth required   pam_unix.so

	   session required pam_unix.so
	   session optional pam_timestamp.so

FILES

       /var/run/sudo/...
	   timestamp files and directories

SEE ALSO

       pam_timestamp_check(8), pam.conf(5), pam.d(5), pam(8)

AUTHOR

       pam_tally was written by Nalin Dahyabhai.

Linux-PAM Manual						    09/19/2013						    PAM_TIMESTAMP_CHECK(8)