interesting logs

• /var/log/auth.log
• /var/log/ufw.log
• /var/log/apache2/*access.log
• /var/log/apache2/*error.log

tools

lnav - ncurses-based log file viewer

From man: The log file navigator, lnav, is an enhanced log file viewer that takes advantage of any semantic information that can be gleaned from the files being viewed, such as timestamps and log levels

apt install -y lnav

lnav /var/log/auth.log /var/log/ufw.log /var/log/apache2/*access.log

ezservermonitor

Install webapp:

wget https://www.ezservermonitor.com/esm-web/downloads/version/2.5 -O ezservermonitor.zip

Configure in conf/esm.config.json