A hybrid firewall combines two or more of the above types of firewalls. Many of the firewalls on the market are a combination of packet-based firewall and application-gateway firewall (Kenworthy, 2014).
Through connections of networks, there is a different level of faith that usually exists on the connection’s sides. This term, “Trust,” means that the group does believe equally of the users on its computers and the software being non-malicious (Pinter, 2015). Firewall technology offers vital protection from hackers, as discussed below;
The operating systems do have a past of ensuring configurations. To give an example, Windows 98 and Windows 95 distributed extensively with window file distribution that was default enabled; so many viruses exploited this vulnerability. Another example is Red Hat Linux Versions 7.0, as well as 6.0, who were exposed to the three remote exploits when the default options were used in installing the operating system (Dodis & Stephens-Davidowitz, 2016). It is an expensive and on-going process for every user’s machine to be secured; this has made several organizations consciously craft a verdict not to protect the machines within their firewalls. In case a machine is ever compromised from the inside, the vulnerability of the other machines is possible. This situation is commonly referred to as “a sort of crunchy shell around a soft, chewy center.” A sole machine, which is connected to the internet, can be protected using a private firewall instead of working on securing the operating system (Kenworthy, 2014). These firewalls bar some communication types.
The nationwide firewalls do limits on the internet the actions of their users, for instance, in China. Children’s Internet Protection Act (CHIPA) is the same idea in the US, which mandates the information to be filtered (Kenworthy, 2014). The schools and libraries that are funded by federal are required by this law to block some specific contents of the web.
Since all traffic from a network has to bypass through firewall information, it is, therefore, possible to achieve leaks reduction in the organization’s data (Salah et al., 2016). Prevention of any unauthorized leak of data to the outsiders is the key criterion for the success of digital corporate gateways.
Firewalls are components of the overall policy of security; they usually impose the rules concerning which traffic network is acceptable to leave or enter the network (Cooper & Guzik, 2014). These policies limit which remote machine may be contacted, the use of specific applications, and also a limitation of the bandwidth.
In case a security breach occurs, the audit trials may be used to assist in determining what had happened and what caused the breach (Salah et al., 2016). The audit trails have been widely used in the monitoring of employees in many organizations.