Heating, ventilation, and air conditioning.
Really important. You want to keep your systems cool.
You want to keep your humidity in the right range, 40 to 60 % relative humidity.
Provide continuous power and again, ensure that the air flow is adequate,
the systems don't overheat, which also again can cause denial of service.
Emi Shielding, electromagnetic
interference and radio frequency interference are the
two types of electrical interference that can disrupt communications,
degrade data transmissions, cause errors, and so forth.
It occurs when electronic devices' performance is interrupted or degraded due
to electromagnetic radiation or conduction.
Monitors, heat space heaters, fluorescent
lights, all different sources of electromagnetic interference.
There we go.
There's EMI shielding, which can be applied to electronic equipment,
kept in metal boxes, or you can also use a shielded twisted pair cable.
Our hot and cold dials.
So the idea with hot and cold dials is that you keep the air flow moving between
the intakes and out the exhaust of your cooling systems.
And the idea in the server room is
that the cold dial typically faces the air conditioner.
Hot dials should face the air conditioner input ducts, and it gives you a nice
throughput or circular motion for heat exhaust and fresh air from the intakes.
It saves the hardware from humidity and
heat, increases hardware performance, maintains consistent room temperature.
All right, so to wrap it all up, our
physical security checklist, ensure that proper access control methods
are implemented to prevent unauthorized access,
ensure sensitive areas are monitored with proper lighting, ensure an alarm system is
installed, door lock systems are working properly, security guards, and ensure
security personnel are given proper training.
Security awareness and education, again,
goes a long way to correcting user behavior, which again, at
the end of the day, the human has to carry out security directives.
All right, and that is going to wrap up
our network security controls, physical controls module.