{"id":11377,"date":"2021-03-22T18:36:50","date_gmt":"2021-03-22T16:36:50","guid":{"rendered":"https:\/\/www.kodingtech.com\/?p=11377"},"modified":"2021-03-22T18:36:50","modified_gmt":"2021-03-22T16:36:50","slug":"what-is-a-firewall-and-how-does-it-secure-the-network","status":"publish","type":"post","link":"https:\/\/kodingtech.com\/en\/ce-este-un-firewall-si-cum-securizeaza-reteaua\/","title":{"rendered":"What is a Firewall and how does it secure the network?"},"content":{"rendered":"
The world is indeed a wonderful place, but it is not without its dangers. Well, the same can be said about the internet. We have become so accustomed to traveling online that we sometimes forget to take precautions to protect ourselves. And this can lead to security breaches.<\/span><\/h5>\n\n\n\n

Whether you are thinking about the security of the company data you manage, or just your own computer, you most certainly need security solutions. IT security<\/a>. One of the most common is the firewall itself. Learn more about what a firewall is, and how it can secure your network, below. <\/span><\/p>\n\n\n\n

What is a firewall? <\/h2>\n\n\n\n

The firewall, or protection screen, as it was translated, is an absolutely necessary system to ensure online protection, especially in an era when working online is cloud<\/a> it became the norm.  <\/span><\/p>\n\n\n\n

This can be a free firewall, integrated into every computer, the most conclusive example being the Windows firewall, or it can be a hardware firewall, purchased separately for increased protection. In short, a firewall is a security device that aims to monitor network traffic and block data packets according to preset rules. It acts as a shield between your internal network and data traffic from external sources. This way you can protect yourself from cyber threats such as hackers and viruses. Learn more about cybersecurity from Cezar Varlan<\/a>.\u00a0<\/span><\/p>\n\n\n\n

Types of firewalls <\/h2>\n\n\n\n

Now that we have explained in general terms what a firewall is and what it does, we will go into details depending on their specifics. If you do not want to bother with such information, you can call on a specialized company, reducing security risks being one of the 5 reasons for IT outsourcing<\/a>. It is worth mentioning that the best option would be to benefit from both types of firewall and an antivirus program. <\/span><\/p>\n\n\n\n

Software firewall <\/h3>\n\n\n\n

This type of firewall is represented by a program installed on each computer\/laptop and is responsible for regulating traffic based on applications and number of ports. If you have chosen this type of firewall, there is no need to purchase IT equipment<\/a> additional, but just download and install the application if it is not already integrated. The advantages of the software are represented by the customization possibilities. You can basically create new settings to protect your computer. <\/span><\/p>\n\n\n\n

Hardware firewall<\/h3>\n\n\n\n

What is a hardware firewall? It's nothing more, nothing less than a piece of equipment installed between your network and your gateway. These are usually included with broadband routers, but you can also purchase them separately. <\/span><\/p>\n\n\n\n

Ways to secure the network<\/h2>\n\n\n\n

Securing a network with a firewall is simply done by filtering traffic. There are several ways to do this, as follows. <\/span><\/p>\n\n\n\n

Packet filtering<\/h3>\n\n\n\n

Also known as a stateless firewall, this type of filter examines the TPS, i.e. Transport Control Protocol, and the packet, in order to determine its level of security and accept the pre-established rule. You will need to do a manual configuration for this type of program, so do not hesitate to seek professional help. <\/span><\/p>\n\n\n\n

Gateway <\/h3>\n\n\n\n

Gateway is an automatic filtering method that analyzes transmitted data and applies traffic conditions to certain services and\/or applications. Its disadvantage is that it will affect system performance, even if it will be extremely effective in securing the network. <\/span><\/p>\n\n\n\n

Proxy Server <\/h3>\n\n\n\n

The last popular way to filter traffic is to set up an intermediary (proxy) that will take over and modify the incoming and outgoing data, and will change the real network address. <\/span><\/p>\n\n\n\n

For a high level of protection, you can use all of these methods at the same time. However, be careful with the configuration so as not to limit yourself from surfing the Internet or using applications. Fortunately, you can enable and disable the firewall as you please. <\/span><\/p>","protected":false},"excerpt":{"rendered":"

Lumea este intr-adevar un loc minunat, dar nu este lipsita de pericole. Ei bine, acealsi lucru poate fi spus si despre internet. Ne-am obisunit atat de tare sa calatorim pe coclauri online, incat uneori uitam ca trebuie sa ne luam masuri de protectie. Iar asta poate duce la brese de securitate. Fie ca te gandesti […]<\/p>\n","protected":false},"author":1,"featured_media":11378,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-11377","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kodingtech"],"_links":{"self":[{"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/posts\/11377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/comments?post=11377"}],"version-history":[{"count":0,"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/posts\/11377\/revisions"}],"wp:attachment":[{"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/media?parent=11377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/categories?post=11377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kodingtech.com\/en\/wp-json\/wp\/v2\/tags?post=11377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}