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An internal network security should be robust and updated. Any organizations make a
significant effort to secure their network system. Why is that? They want to protect their business
from threats and hacks. It’s true that IPS, firewalls, and other network security appliances are
good protectors against attackers. However, these require a secure configuration. Mostly,
administrators will patch their network repeatedly. It’s the most common step in securing the
network. The thing is attackers only exploit networks with vulnerabilities. With proper patches,
there’s no chance to attack.
What Can Administrators Do?
Next, they can apply network segregation. As mentioned earlier, organizations apply firewalls to
their network system. Their internal network security is relatively regular, though. For a better
security, they need network segregation. With solid network segregation, they are able to reduce
the potential for internal attacks. There won’t be damages caused by users with unauthorized
access. It’s because their access is limitless. They only have a small space to explore in such
internal network. Also, it’s easier to identify a networking event when there are more firewalls
The next is internal network security improvement is the implementation of a stronger
password policy. Administrators should apply a stronger password policy and use it to their
network. It depends on the complexity such as password length, characters, composition,
lowercase letter, uppercase letter, number, special characters, etc. Also, they need to replace such
password once every 45 days. It sounds troublesome, doesn’t it? However, it helps improves
network security. Ideally, the password should come with 15 characters.
What about the physical security. It’s actually the part of internal network security. Attackers
often attack the network physically. For instance, they may reboot a server or find an idle name
on a printout. What should administrators do? They need to obstruct the attackers from those bad
people. For example, they need to lock their wiring closet. Instead of using hubs, they need to
use switches. This is helpful, especially for LAN segments. Do they need a paper shredder?
Since there are many dumpster divers, administrators should consider it as an option.
More Things to Know
As explained earlier, both system and physical internal network security are important.
Administrators often make a common mistake. They are only aware of external threats. The fact
is that internal threats are more dangerous. At least, they need to create specific procedures and
policies for their network. That means users or employees should sign and acknowledge these
procedures. This way, they can learn their responsibilities. Another common network security
improvement is through training. Online security training is quite effective, in fact.
Overall, an improved internal network security gives a reassurance to the administrators. The
threats can come through the systems or physical attacks, in fact. With proper protection, there’s
no need to worry about those threats. It’s as simple as limiting the access to the information. Any
types of organizations should have a filter. Unauthorized employees or users should be banned.
The last but not the least, administrators need to monitor their employee activity. Doing so helps
deal with unusual users’ activity. It’s as simple as that.