Linux Server Daily Reboot

Schedule a daily reboot with cron

Type:

sudo crontab -e
[sudo] password for user:
no crontab for root - using an empty one

Select an editor. To change later, run 'select-editor'.
 1. /bin/nano <---- easiest
 2. /usr/bin/vim.tiny

Choose 1-2 [1]:
crontab: installing new crontab

Add:

# m h dom mon dow command
40 1 * * * /sbin/reboot

In this case Every Day at 01:40 AM

Thanks to https://stackoverflow.com/questions/15393875/using-cron-to-reboot

Add Tomcat as Service Linux (Systemd)

Create file tomcat-systemd on  /etc/systemd/system/tomcat-systemd.service

nano /etc/systemd/system/tomcat-systemd.servicee

 

# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=forking

Environment=JAVA_HOME=/opt/tomcat/jdk1.8.0_121
Environment=CATALINA_PID=/opt/tomcat/apache-tomcat-7.0.75/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat/apache-tomcat-7.0.75/
Environment=CATALINE_BASE=/opt/tomcat/apache-tomcat-7.0.75/
Environment='CATALINE_OPTS=-Xms1G -Xmx1G -Djava.net.preferIPv4Stack=true'
Environment='JAVA_OPTS=-Djava.awt.haedless=true -Djava.security.egd=file:/dev/./urandom'

ExecStart=/opt/tomcat/apache-tomcat-7.0.75/bin/startup.sh
ExecStop=/opt/tomcat/apache-tomcat-7.0.75/bin/shutdown.sh
#ExecStop=/bin/kill -15 $MAINPID

User=tomcat
Group=tomcat

[Install]
WantedBy=multi-user.target

Enable and start service

systemctl enable tomcat-systemd.service
systemctl start tomcat-systemd.service

We can test OK with:

ps -ef |grep java
systemctl status tomcat-systemd.service

Thanks to https://gist.github.com/obatiuk/15c84fb25826d4f39a303a454087e85a for systemd Script.