Network security has many components to it. It’s best to know what the components are and how they are used so that you can develop a well-rounded security plan for your organization.
Firewalls are by far the most important component of network security. They provide a layer of protection from unauthorized traffic, generally from outside networks. They protect your intranet (internal network) and your main and “normal” Internet.
A good firewall performs two basic functions. It creates a boundary between the internal and external networks. It also allows only authorized traffic to pass over the firewall. In other words, if someone on the inside is trying to access a website on the outside, then it can’t be accessed because the firewall will allow it through.
A firewall does not prevent access. Rather, it protects the internal network from unauthorized access. Most applications in your company can be run through a firewall.
Intranet security, as the name implies, is the security of the intranet. It covers the physical areas (corridors, hallways, employee desks, computers) that are shared by employees, customers, vendors, and members of the hierarchy within your organization.
Data is as important as the business itself. Data is the lifeblood of an organization and therefore, it is critical that the data protection features are up to date and robust. For this reason, if you have a fast connection, you may want to consider going to a virtual private server (VPS). This allows your virtual private server to be hosted on a high-speed server, without having to pay a penny per month.
An active defender is an internal firewall or an external firewall. It prevents hackers and intruders from getting onto your network. The administrator can set up a firewall in one computer and have it protect all other computers in the company. Active defenses may include dynamic or static IP addresses, firewalls, and NAT (Network Address Translation).
An internal network is like a telephone cord running to your computers and other devices. It allows communication between your devices and prevents anyone from listening in to your conversations. However, because it is connected internally, there is a chance that it is easier for someone to tamper with your internal network than with an external network. It is therefore advisable to get external connectivity at a minimum, and to use a hardware firewall.
Firewalls also prevent remote exploitation. It keeps information secure, which prevents outside parties from getting to it.
Firewalls perform the task of maintaining the internal network as well as preventing the use of external networks. They also provide a way to detect attacks before they happen, which allows the system to stop malicious activity on the network. In addition, they provide the necessary protection against potential security breaches.
Firewalls, when designed correctly, make it difficult for intruders to get in. A security researcher has previously stated that 95% of security vulnerabilities are the result of external actors being able to gain access to systems without authorization. A firewall can prevent such incidences from happening. They are especially useful in the monitoring of wireless networks.
While it may seem obvious, but one should avoid the use of HTTP (Hyper Text Transfer Protocol) in websites. It’s possible that the website may download a file that has a keylogger attached to it. Even if the website is encrypted, a web crawler may still get a copy of the entire site.