Linux System Administration

What’s Next

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Now create the certificate:

# openssl req -new -x509 -days 365 -nodes -config ./monit.cnf -out \

/var/certs/monit.pem -keyout /var/certs/monit.pem

# openssl gendh 512 >> /var/certs/monit.pem

# openssl x509 -subject -dates -fingerprint -noout -in /var/certs/monit.pem

# chmod 700 /var/certs/monit.pem

Then edit /etc/default/monit to enable the monit daemon. Change startup to 1 and set

CHECK_INTERVALS to the interval in seconds at which you would like to check your sys-

tem. We chose

60. The file should now look like this:

# Defaults for monit initscript

# sourced by /etc/init.d/monit

# installed at /etc/default/monit by maintainer scripts

# Fredrik Steen <[e-mail]>

# You must set this variable to for monit to start

startup=1

# To change the intervals which monit should run uncomment

# and change this variable.

CHECK_INTERVALS=60

Finally, start monit:

# /etc/init.d/monit start

Now point your browser to https://your_domain:2812/ (make sure port 2812 isn’t

blocked by your firewall) and log in with the username admin and password test.

You should see the monit web interface, shown earlier in Figure 4-18.

What’s Next

We started out by getting your server up and running so you could use it as an Inter-

net platform. We installed a text-based server without the X Window System (for

security and performance reasons) and then set up web-based interfaces to allow you

to securely manage and monitor ...