Network Security consulting and setting up of Firewalls:

One of the many tasks of a system administrator is the installation and setting up of firewalls in an organization. A firewall is a vital component of a firm’s network and it plays an extremely important part in securing and protecting it; network security refers to methods of addressing external and internal threats to a company’s network system. Firewalls can help secure a network from both internal and external dangers.
Everyone has heard of the word ‘router’; it is a device that essentially connects or acts as a bridge between two or more different networks. When an organization’s internal network is connected to the internet, it is usually assumed that the network is vulnerable to threats from the external network which is the internet in this case.

A firewall is a device that is installed between the internal network and the external network (internet) to filter all incoming and outgoing traffic or data. This is also known as ‘packet filtering’. A system administrator programs certain rules in a firewall which are used to evaluate incoming and outgoing data. A firewall performs two major roles:

Therefore, it is important that a firewall is installed and managed by a professional system administrator to provide the maximum amount of protection to your company’s network infrastructure. When done correctly, the advantages of using firewalls cannot be ignored. Their main benefits are:

Policing

A firewall acts as a security guard that monitors or polices the outgoing and incoming traffic from/to your network. It analyzes the information being sent or received and either allows it or blocks it, depending upon the rules established within the firewall.

Blocks Malicious Programs

Firewalls have the ability to block potential malware, viruses, and Trojan from infecting your network system. Trojan are the most dangerous because they attach themselves to files and when you transmit these files, they do further damage to other computer systems. Plus, they reveal your confidential information to web servers being hosted by potential hackers.

No More Hackers

A firewall can stop a hacker dead in their tracks. Hackers can cause loss of data and damage to an organization’s computer systems, while they might even use these systems to carry out illegal activities.