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<\/figure><\/div>\n\n\nWhat is firewall?<\/strong> <\/h2>\n\n\n\nIt is a security system that filters all internet traffic. To do so, it selectively blocks or allows data packets, which prevents malicious activities from harming your devices. <\/p>\n\n\n\n
His name is not an exaggeration. These programs literally serve as barriers against potentially dangerous activities. Furthermore, they make use of several pre-programmed parameters to take action against certain scams; others can be defined by the user, depending on the need.\u00a0<\/p>\n\n\n\n
Other firewalls also work to track traffic in audit logs so you clearly understand everything that was allowed or blocked throughout the day. This is especially important for technology companies that need to protect their customers' and employees' data at all costs. <\/p>\n\n\n\n
Why is he so important?<\/strong> <\/h2>\n\n\n\nNow that you understand the basics of the subject, it's time to understand in depth all the benefits and functions of a firewall: <\/p>\n\n\n\n
\n- Protection against external evils:<\/strong> A powerful barrier between your network (private or public) and the internet, capable of blocking incoming and outgoing traffic with malware, viruses and many other threats; <\/li>\n\n\n\n
- Sensitive data leak prevention:<\/strong> Criminals are constantly looking for security holes in devices connected to the internet. A well-configured firewall can greatly reduce the chances of this type of occurrence; <\/li>\n\n\n\n
- Enhanced Access Control:<\/strong> You can choose which applications can (or cannot) access your network. To this end, specific rules based on ports, protocols and IP addresses can be created; <\/li>\n\n\n\n
- Security on public networks: <\/strong>Accessing the internet in chain restaurants or stores can be a necessary evil from time to time; In these cases, a firewall can defend your devices much better. <\/li>\n<\/ul>\n\n\n\n
How to configure the firewall?<\/strong> <\/h2>\n\n\n\nThe answer to this question depends on the type of device you want to protect. By default, Windows operating system users already have the Windows Defender Firewall<\/strong> preconfigured. <\/p>\n\n\n\nOn the other hand, Android does not have a firewall installed by default. To do this, you will need to install third-party software. There are several excellent free options, although the most robust ones are paid. <\/p>\n\n\n\n
To make this tutorial even more comprehensive and clear, it will be separated into two steps: how to configure the Windows firewall and how to install and configure another one on Android smartphones. <\/p>\n\n\n\n
Configure the Windows firewall<\/strong> <\/h2>\n\n\n\nFollow the steps carefully so as not to leave any critical settings behind.<\/p>\n\n\n\n
Activate the software<\/strong> <\/h3>\n\n\n\n\n- Click the Start button and choose settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
\n- In Privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
\n- Choose one of three main network profiles: Domain network<\/strong>, Private network<\/strong> or Public network<\/strong>. The first is more aimed at intranet services, the second for your private internet connection and the last refers to third-party connections; <\/li>\n<\/ol>\n\n\n\n
\n- Click \u201cEnabled\u201d under Microsoft Defender Firewall to activate the software. <\/li>\n<\/ol>\n\n\n\n
The procedure is quite simple, isn't it? You should receive a notification from the program as soon as you try to open any program that requires internet access on your system. This is perfectly normal. If it is a trusted application, click \u201cAllow\u201d as soon as the notification appears on the screen.\u00a0<\/p>\n\n\n\n
Read too: The secret to building solid financial assets<\/a><\/strong><\/p>\n\n\n\nAdvanced Settings<\/strong> <\/h3>\n\n\n\nIf you understand firewall settings, it might be a good idea to perform some manual adjustments. To do so, follow the following path: <\/p>\n\n\n\n
\n- Click the Start button and choose settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
\n- In privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
\n- click in Advanced Settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
\n- Select which applications can (or cannot) use certain connection ports on your computer. Remember that this type of configuration should only be done if you know what you are doing. Otherwise, you could seriously compromise the security of your system.\u00a0<\/li>\n<\/ol>\n\n\n\n
Important: <\/strong>If you have security software on your device (antivirus\/anti-malware with built-in firewall), Windows Defender firewall should be automatically disabled. To understand how your software works, consult your online protection suite documentation. <\/p>\n\n\n\nConfiguration on Android<\/strong> <\/h2>\n\n\n\nConsidering that Android does not have a built-in firewall, it is important to download an external solution. The NoRoot Firewall (download here<\/a>) is an excellent free solution that does not require root (super administrator) access. <\/p>\n\n\n\nThe configuration procedure is quite simple: <\/p>\n\n\n\n
Now that you understand the basics of the subject, it's time to understand in depth all the benefits and functions of a firewall: <\/p>\n\n\n\n
- \n
- Protection against external evils:<\/strong> A powerful barrier between your network (private or public) and the internet, capable of blocking incoming and outgoing traffic with malware, viruses and many other threats; <\/li>\n\n\n\n
- Sensitive data leak prevention:<\/strong> Criminals are constantly looking for security holes in devices connected to the internet. A well-configured firewall can greatly reduce the chances of this type of occurrence; <\/li>\n\n\n\n
- Enhanced Access Control:<\/strong> You can choose which applications can (or cannot) access your network. To this end, specific rules based on ports, protocols and IP addresses can be created; <\/li>\n\n\n\n
- Security on public networks: <\/strong>Accessing the internet in chain restaurants or stores can be a necessary evil from time to time; In these cases, a firewall can defend your devices much better. <\/li>\n<\/ul>\n\n\n\n
How to configure the firewall?<\/strong> <\/h2>\n\n\n\n
The answer to this question depends on the type of device you want to protect. By default, Windows operating system users already have the Windows Defender Firewall<\/strong> preconfigured. <\/p>\n\n\n\n
On the other hand, Android does not have a firewall installed by default. To do this, you will need to install third-party software. There are several excellent free options, although the most robust ones are paid. <\/p>\n\n\n\n
To make this tutorial even more comprehensive and clear, it will be separated into two steps: how to configure the Windows firewall and how to install and configure another one on Android smartphones. <\/p>\n\n\n\n
Configure the Windows firewall<\/strong> <\/h2>\n\n\n\n
Follow the steps carefully so as not to leave any critical settings behind.<\/p>\n\n\n\n
Activate the software<\/strong> <\/h3>\n\n\n\n
- \n
- Click the Start button and choose settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- \n
- In Privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- \n
- Choose one of three main network profiles: Domain network<\/strong>, Private network<\/strong> or Public network<\/strong>. The first is more aimed at intranet services, the second for your private internet connection and the last refers to third-party connections; <\/li>\n<\/ol>\n\n\n\n
- \n
- Click \u201cEnabled\u201d under Microsoft Defender Firewall to activate the software. <\/li>\n<\/ol>\n\n\n\n
The procedure is quite simple, isn't it? You should receive a notification from the program as soon as you try to open any program that requires internet access on your system. This is perfectly normal. If it is a trusted application, click \u201cAllow\u201d as soon as the notification appears on the screen.\u00a0<\/p>\n\n\n\n
Read too: The secret to building solid financial assets<\/a><\/strong><\/p>\n\n\n\n
Advanced Settings<\/strong> <\/h3>\n\n\n\n
If you understand firewall settings, it might be a good idea to perform some manual adjustments. To do so, follow the following path: <\/p>\n\n\n\n
- \n
- Click the Start button and choose settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- \n
- In privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- \n
- click in Advanced Settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- \n
- Select which applications can (or cannot) use certain connection ports on your computer. Remember that this type of configuration should only be done if you know what you are doing. Otherwise, you could seriously compromise the security of your system.\u00a0<\/li>\n<\/ol>\n\n\n\n
Important: <\/strong>If you have security software on your device (antivirus\/anti-malware with built-in firewall), Windows Defender firewall should be automatically disabled. To understand how your software works, consult your online protection suite documentation. <\/p>\n\n\n\n
Configuration on Android<\/strong> <\/h2>\n\n\n\n
Considering that Android does not have a built-in firewall, it is important to download an external solution. The NoRoot Firewall (download here<\/a>) is an excellent free solution that does not require root (super administrator) access. <\/p>\n\n\n\n
The configuration procedure is quite simple: <\/p>\n\n\n\n
- Select which applications can (or cannot) use certain connection ports on your computer. Remember that this type of configuration should only be done if you know what you are doing. Otherwise, you could seriously compromise the security of your system.\u00a0<\/li>\n<\/ol>\n\n\n\n
- click in Advanced Settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- In privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- Click the Start button and choose settings<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- Click \u201cEnabled\u201d under Microsoft Defender Firewall to activate the software. <\/li>\n<\/ol>\n\n\n\n
- Choose one of three main network profiles: Domain network<\/strong>, Private network<\/strong> or Public network<\/strong>. The first is more aimed at intranet services, the second for your private internet connection and the last refers to third-party connections; <\/li>\n<\/ol>\n\n\n\n
- In Privacy and security<\/strong>, select Windows Security<\/strong> > Firewall and network protection<\/strong>; <\/li>\n<\/ol>\n\n\n\n
- Sensitive data leak prevention:<\/strong> Criminals are constantly looking for security holes in devices connected to the internet. A well-configured firewall can greatly reduce the chances of this type of occurrence; <\/li>\n\n\n\n