Post by account_disabled on Feb 24, 2024 5:35:53 GMT
Using a metaphor, the firewall can be compared to a bouncer who ensures that only welcome guests enter. This tool, in the IT field, allows you to protect your PC and mobile devices from unauthorized access and ensures that no one can modify, delete or copy the data. But how does a firewall work and why is it important to use it to increase the protection of your devices? Content index: The main characteristics of a firewall When is it necessary to use a firewall? How a firewall works The main types of firewalls Proxy firewall Stateful inspection firewall UTM firewall NGFW firewall How does Shellrent manage hosting security? The main characteristics of a firewall A firewall can be made up of a set of software and hardware solutions or, alternatively, a purely software system that is installed on a PC or network. Its use allows you to approve or deny the transfer of data between different networks based on precise rules .
Its history begins in 1989 when the telephony company AT&T launched the stateful firewall, the Qatar Mobile Number List first example of software created with the aim of carrying out dynamic inspections of individual data packets of internet traffic. The need that led to its invention is linked to the presence, even in that period, of online threats. Considering that more than 30 years ago the internet was the prerogative of a niche of people, while now it has become accessible on a large scale, it is clear that equipping PCs and networks with efficient and reliable firewalls has become an essential choice. In fact, threats from new viruses are commonplace, as are scams linked to phishing activities and cyber attacks. Thanks to firewalls it is possible to manage and control data traffic between the internet and corporate or private networks that have areas with very important and sensitive data.
In this regard, they must also ensure that each incoming and outgoing request (i.e. data packets) is delivered only where permitted. To be able to better control this process, the firewall works following very specific rules to monitor inputs and outputs (the so-called doors). When is it necessary to use a firewall ? Using a firewall is necessary when a PC or any device is connected to the network and therefore exposed to internet threats. Among the latter include: Malware . Intruders can inject malware to infect both a PC and a server. Brute force attacks . Hackers make repeated login attempts. DDoS attacks . Firewalls have the ability to detect web traffic anomalies, attempting to block a website or network resource. More generally, thanks to the support of a firewall it will be difficult for users without authorization to enter a computer or server remotely and act fraudulently.
Its history begins in 1989 when the telephony company AT&T launched the stateful firewall, the Qatar Mobile Number List first example of software created with the aim of carrying out dynamic inspections of individual data packets of internet traffic. The need that led to its invention is linked to the presence, even in that period, of online threats. Considering that more than 30 years ago the internet was the prerogative of a niche of people, while now it has become accessible on a large scale, it is clear that equipping PCs and networks with efficient and reliable firewalls has become an essential choice. In fact, threats from new viruses are commonplace, as are scams linked to phishing activities and cyber attacks. Thanks to firewalls it is possible to manage and control data traffic between the internet and corporate or private networks that have areas with very important and sensitive data.
In this regard, they must also ensure that each incoming and outgoing request (i.e. data packets) is delivered only where permitted. To be able to better control this process, the firewall works following very specific rules to monitor inputs and outputs (the so-called doors). When is it necessary to use a firewall ? Using a firewall is necessary when a PC or any device is connected to the network and therefore exposed to internet threats. Among the latter include: Malware . Intruders can inject malware to infect both a PC and a server. Brute force attacks . Hackers make repeated login attempts. DDoS attacks . Firewalls have the ability to detect web traffic anomalies, attempting to block a website or network resource. More generally, thanks to the support of a firewall it will be difficult for users without authorization to enter a computer or server remotely and act fraudulently.