{"id":104240,"date":"2025-11-29T14:49:30","date_gmt":"2025-11-29T14:49:30","guid":{"rendered":"https:\/\/mailinvest.blog\/index.php\/2025\/11\/29\/this-free-open-source-tool-can-disable-internet-access-for-specified-apps\/"},"modified":"2025-11-29T14:50:35","modified_gmt":"2025-11-29T14:50:35","slug":"this-free-open-source-tool-can-disable-internet-access-for-specified-apps","status":"publish","type":"post","link":"https:\/\/mailinvest.blog\/index.php\/2025\/11\/29\/this-free-open-source-tool-can-disable-internet-access-for-specified-apps\/","title":{"rendered":"This free, open-source tool can disable internet access for specified apps"},"content":{"rendered":"

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Ever wished to cease a selected app from going surfing\u2014whether or not to guard your privateness or block suspicious exercise? Me too\u2014and that\u2019s why I exploit Portmaster, a free, open-source community monitor that allows you to see each connection your apps make and blocks something you don\u2019t belief with a single toggle.<\/p>\n

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\n Find out how to immediately cease any app from going surfing
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To dam an app from web entry, merely open the Portmaster<\/a> app, and the left-hand sidebar will present you all operating apps and providers which can be presently related to the web. Click on the app you wish to block\u2014say, Google Chrome\u2014and toggle Block Connections. It\u2019s that easy!<\/p>\n

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Portmaster integrates straight into your system\u2019s community stack, which permits it to see\u2014and present you<\/em>\u2014each incoming and outgoing connection on a per-app foundation. This implies you’ll be able to see precisely what every app is doing on-line and cease it if it’s essential to.<\/p>\n

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Portmaster merely screens, logs, and blocks incoming and outgoing connections. It doesn\u2019t examine<\/em> each incoming and outgoing packet. For that, you\u2019d want a packet-inspector like Wireshark<\/a>\u2014however these instruments may be too technical and overcomplicated for easy house customers.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

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\n Why I wish to block sure apps from accessing the web
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I set up lots of totally different apps and instruments on my PC for testing and experimentation\u2014it comes with the job\u2014and as you’ll be able to think about, this additionally exposes me to potential cyber threats. I may unintentionally set up one thing malicious that Windows Defender<\/a> could not detect, and now it is quietly stealing my information within the background.<\/p>\n

For instance, I really like utilizing Obsidian<\/a> to retailer all my private notes as a result of it really works offline and regionally shops all the pieces. Nonetheless, I additionally use Obsidian plugins so as to add further options to the app. These are community-built, and Obsidian explicitly advises customers to put in them at their very own danger.<\/p>\n

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\n\t\t\tDo you really need a VPN on your phone?
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It is principally all professionals, however there are some cons it’s essential to find out about.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

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\n What else are you able to do with Portmaster
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Portmaster isn\u2019t simply restricted to blocking apps from accessing the web, however features as an total community safety device to your Home windows PC. Right here\u2019s a fast overview of its different options.<\/p>\n

\n Granular view of community exercise throughout all apps
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The principle dashboard reveals a real-time graph of energetic and blocked connections, together with an inventory of all apps at the moment related to the web. You’ll be able to dive into particular person apps to see precisely which domains they’re connecting to, how a lot information they’re importing and downloading, and when every connection began and ended.<\/p>\n

\n Robotically block trackers and malware
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Certainly one of Portmaster’s finest options is computerized tracker and malware blocking. Throughout setup, you’ll be able to allow varied filter lists that block recognized trackers, malware domains, phishing websites, and even grownup content material. In fact, you can even add (or take away) filters after the setup course of by heading into Settings > Privateness Filters > Filter Listing.<\/p>\n

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Portmaster maintains a database of malicious domains and checks it in real-time, stopping these connections earlier than they’ll trigger points. This occurs mechanically within the background\u2014you do not have to manually overview each connection.<\/p>\n

\n Per-app community guidelines
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It’s also possible to create customized guidelines for particular apps. Possibly you wish to enable an app to attach solely to sure domains, or block it from particular areas. Portmaster offers you that degree of management via per-app settings. You are able to do this by deciding on the app from Portmaster, switching to its Settings tab, after which scrolling down until you see the Guidelines part.<\/p>\n

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\n The Safing Privateness Community (SPN) with Portmaster Professional
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Portmaster follows a freemium mannequin. All of the above options can be found with the free plan, however should you subscribe to their Pro plan at $9.90\/month<\/a>, you\u2019ll get entry to the Safing Privacy Network (SPN)<\/a>\u2014a VPN that provides Tor-like options and routes every connection individually utilizing the onion encryption. This may doubtlessly enhance connection speeds by mechanically selecting exit nodes near your vacation spot.<\/p>\n

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That mentioned, I personally keep on with the free plan since I already use ProtonVPN<\/a>, and it is far more inexpensive.<\/p>\n

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\n Find out how to set up and arrange Portmaster on Home windows
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Putting in Portmaster is extraordinarily simple. Head to Safing’s website<\/a> and obtain the Home windows installer. It is a normal executable file\u2014simply double-click it and comply with the set up wizard. The installer will deal with all the pieces, together with establishing the mandatory community drivers that Portmaster wants to watch your site visitors.<\/p>\n

As soon as put in, Portmaster will launch mechanically and stroll you thru a fast setup course of. You will be requested to pick out which filter lists you wish to allow\u2014issues like blocking trackers, malware, and phishing websites. I like to recommend enabling not less than the malware and phishing lists. You will additionally select your preferred DNS provider<\/a> (Portmaster helps DNS-over-TLS and DNS-over-HTTPS for encrypted DNS queries).<\/p>\n

The setup takes lower than a minute, and when you’re achieved, Portmaster runs within the background, monitoring all community exercise. By default, it begins mechanically with Home windows, so it is at all times defending your system. You’ll be able to entry the Portmaster interface anytime via the system tray icon.<\/p>\n\n

Portmaster offers you full visibility into what your apps are doing on-line and the power to dam something you don\u2019t belief. It\u2019s free, open-source, and easy to make use of, making it a wonderful alternative for anybody who desires to take a extra energetic, hands-on strategy to privacy and cybersecurity<\/a>.<\/p>\n<\/p><\/div>\n