Scripts for different tasks

These scripts perform multiple of different tasks that help monitor the server and send emails after performing functions. To send emails the sendEmail package is required

apt-get install sendemail

Change the following lines in scripts that send emails

MAILFROM is set to determine the server name and domain name for the server and generate and email for it to determine where the email is coming from. This can be changed to specify an email address or you can leave it to generate one.

MAILTO=user@example.com
SMTP=mail.example.com
MAILFROM=$(hostaname)@$(dnsdomainname)

00logwatch

This script sends a report based on the log files and settings.

Installation

apt-get install logwatch
ln -s $(pwd)/00logwatch /etc/cron.daily

check_updates_deb_sh

This script checks for updates on your Debian based systems. If any updates are found it will download them ready for Installation and an email will be sent to an email address specified

Installation

ln -s $(pwd)/check_updates_deb_sh /etc/cron.daily

check_updates_rpm.sh

This is the same as above but for use on rpm based distributions (CentOS, Fedora etc)

This script has been tested and used on CentOS.

dbbackup.sh

This scripts backs up mysql databases and rotates the number of backups through seven days.

Specify the user and password that has access to the databases.

DBUSER='dbbackup'
DBPASS='EWFfP3GZsqr427Yj'
BACKUPDIR='/BACKUP/db/'

diskalert.sh

Sends and email when disk space reaches greater than 90%.

Installation

ln -s ${pwd}/diskalert.sh /etc/cron.hourly

gitlabbackup.sh

If you run your own gitlab server.

Add the following lines to /etc/gitlab/gitlab.rb once added run gitlab-ctl reconfigure for changes to take effect

gitlab_rails['backup_path'] = 'BACKUP FOLDER'
gitlab_rails['backup_keep_time'] = 604800 #7 days of backups to keep

Change the BACKUP FOLDER to a location where you want the backups to be saved.

Installation

ln -s ${PWD}/gitlabbackup.sh /etc/cron.daily

nasbackup.sh

This script does an rsync from one folder location to another

Installation

ln -s ${PWD}/nasbackup.sh /etc/cron.daily

rkhunter.sh

Script sends an email with the rkhunter scan and report.

Installation

apt-get install rkhunter
ln -s ${PWD}/rkhunter.sh /etc/cron.daily

mailQWatch.sh

Script checks mailq size on a postfix system and sends an email when queue size is greater than threshold.

Update variables in scripts to suit your needs.

QUEUELIMIT=75
SUBJECT="Mail Queue on $HOST is currently $QUEUECOUNT"
MAILTO="user@example.com"

Installation

As root, sudo will not work.

echo "*/5 * * * * ${PWD}/mailQWatch.sh" >> /etc/crontab