Just about every type of organization today has a sustained presence throughout the Internet. If this applies to you, then you likely have a network connection to your business somehow. These can be vulnerable to outside attacks, which speaks to the importance of having a plan in place for network security. Firewall security must also be taken into account in order to keep unauthorized parties out and your information safe.
A network firewall is designed to isolate the internal network in your organization from prying eyes outside. It helps to prevent unauthorized access to your system. There are various types of firewall security, and those are briefly explained below.
Deployment of a firewall entails controlling traffic that comes in and out of the internal network. Most organizations will have two different interfaces. One will deal with the internet and other types of external networks, while the other one deals with the internal network.
This type of system goes a step further than packet filtering firewalls by carrying out a Deep Packet Inspection. This means that the firewall will look for character strings within a packet to determine if there is a known virus there.
These both work to detect certain anomalies that are present in the network. An IDS is a tool that is visible, while an IPS is more of a control tool to keep. Unauthorized users out of the system.
The two main types of IDS are signature-based and anomaly-based. A signature-based IDS requires a database that contains known attacks along with their signatures. An anomaly-based IDS actually develops a traffic pattern that relates to standard network operation.
The specific type of network firewall that you implement into your security plan will depend on the nature of your organization. The key is to make sure that your data is secure and that only authorized people can gain access to it. You will want to stay vigilant in this regard, as threats to network security are only likely to increase in the coming years.
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