Windows vatrozid^{(Windows Firewall)} je aplikacija koja djeluje kao filtar za vaše računalo. Skenira informacije na web stranici koje dolaze u vaš sustav i potencijalno blokira štetne pojedinosti koje se unose u njega. Ponekad možete pronaći neke programe koji se ne učitavaju i na kraju otkrijete da je program blokiran vatrozidom^(Firewall) . Slično, možete pronaći neke sumnjive programe na svom uređaju i zabrinuti ste da bi mogli naštetiti uređaju, u takvim slučajevima preporuča se blokiranje programa u vatrozidu Windows Defender^{(Windows Defender Firewall)} . Ako nemate pojma kako to učiniti, evo vodiča o tome kako blokirati ili deblokirati programe u vatrozidu Windows Defender^{(how to block or unblock programs in Windows Defender Firewall)} . 

Kako blokirati ili deblokirati programe u vatrozidu Windows Defender^{(How to Block or Unblock Programs In Windows Defender Firewall)}

Kako funkcionira vatrozid?

Postoje tri osnovne vrste vatrozida koje svaka tvrtka koristi za održavanje sigurnosti podataka. Prvo^(First) , oni to koriste kako bi svoje uređaje zaštitili od destruktivnih elemenata mreže.

1. Filtri paketa: Filtri^{(1. Packet Filters:)} paketa analiziraju dolazne i odlazne pakete i u skladu s tim kontroliraju njihov pristup internetu. On ili dopušta ili blokira paket uspoređujući njegova svojstva s unaprijed određenim kriterijima kao što su IP adrese, brojevi portova, itd. Najprikladniji je za male mreže gdje cijeli proces dolazi pod metodu filtriranja paketa. Ali, kada je mreža opsežna, tada ova tehnika postaje komplicirana. Mora se napomenuti da ova metoda vatrozida nije prikladna za sprječavanje svih napada. Ne može se pozabaviti problemima sloja aplikacije i lažnim napadima.

2. Provjera stanja: Inspekcija^{(2. Stateful Inspection:)} s stanjem stanja zadržava robusnu arhitekturu vatrozida koja se može koristiti za ispitivanje tokova prometa na način od kraja do kraja. Ova vrsta zaštite vatrozida naziva se i dinamičko filtriranje paketa. Ovi super-brzi vatrozidi analiziraju zaglavlja paketa i provjeravaju stanje paketa, pružajući tako usluge proxyja za sprječavanje neovlaštenog prometa. Oni su sigurniji od filtara paketa i koriste se u mrežnom sloju OSI modela^{(OSI model)} .

3. Vatrozidi proxy poslužitelja:^{(3. Proxy Server Firewalls:)} Pružaju izvrsnu mrežnu sigurnost filtriranjem poruka na sloju aplikacije.

Odgovor za blokiranje i deblokiranje programa dobit ćete kada saznate za ulogu vatrozida Windows Defender^{(Windows Defender Firewall)} . Može spriječiti povezivanje nekih programa s internetom^(Internet) . Međutim, neće dopustiti pristup mreži ako se čini da je program sumnjiv ili nepotreban.

Novoinstalirana aplikacija će pokrenuti prompt koji vas pita hoće li se aplikacija staviti kao iznimka u vatrozid sustava Windows^{(Windows Firewall)} ili ne.

Ako kliknete Da^(Yes) , tada je instalirana aplikacija pod iznimkom od Windows vatrozida^{(Windows Firewall)} . Ako kliknete Ne^(No) , tada svaki put kada vaš sustav skenira sumnjivi sadržaj na Internetu^(Internet) , Windows vatrozid^{(Windows Firewall)} blokira povezivanje aplikacije s internetom^(Internet) .

Kako dopustiti program kroz vatrozid Windows Defender^{(Windows Defender Firewall)}

1. Upišite vatrozid u izbornik za pretraživanje^{(Search Menu)} , a zatim kliknite na  Windows Defender vatrozid^{(Windows Defender Firewall)} .

2. Kliknite na Dopusti aplikaciju ili značajku putem vatrozida Windows Defendera^{(Allow an app or feature through Windows Defender Firewall )} na lijevom izborniku.

3. Sada kliknite na gumb Promjena postavki^{(Change settings)} .

4. Možete koristiti gumb Dopusti drugu aplikaciju...^{(Allow another app… button )} za pregledavanje programa ako željena aplikacija ili program ne postoji na popisu.

5. Nakon što odaberete željenu aplikaciju, provjerite kvačicu pod " Privatno^(Private) " i " Javno^(Public) ".

6. Na kraju kliknite OK.

Lakše je dopustiti program ili značajku, a ne blokirati aplikaciju ili dio pomoću Windows vatrozida^{(Windows Firewall)} . Ako se pitate kako dopustiti ili blokirati program putem vatrozida Windows 10^{(how to allow or block a program through Windows 10 Firewall)} , slijedeći ove korake pomoći će vam da učinite isto.

Stavljanje aplikacija ili programa na popis dopuštenih putem vatrozida za Windows^{(Whitelisting Apps or Programs with the Windows Firewall)}

1. Kliknite  Start , upišite  vatrozid^{(firewall )} u traku za pretraživanje i odaberite  Windows vatrozid^{(Windows Firewall )} iz rezultata pretraživanja. 

2. Idite na Dopusti program ili značajku putem Windows vatrozida ^{(Allow a program or feature through Windows Firewall )} (ili, ako koristite Windows 10, kliknite  Dopusti aplikaciju ili značajku putem Windows vatrozida^{(Allow an app or feature through Windows Firewall)} ).

3. Sada kliknite na gumb Promjena postavki^{(Change settings)} i tick/untick okvire pored naziva aplikacije ili programa. 

Ako želite pristupiti internetu^(Internet) u svom kućnom ili poslovnom okruženju, označite stupac Privatno . ^(Private)Ako želite pristupiti internetu^(Internet) na javnom mjestu kao što je hotel ili kafić, označite stupac Javno^(Public) kako biste ga povezali putem pristupne mreže ili Wi-Fi veze.

Kako blokirati sve dolazne programe^{(Incoming Programs)} u Windows vatrozidu^{(Windows Firewall)}

Blokiranje svih dolaznih programa najsigurnija je opcija ako imate posla s visoko zaštićenim informacijama ili transakcijskim poslovnim aktivnostima. U tim je situacijama poželjno blokirati sve dolazne programe koji ulaze u vaše računalo. To uključuje programe koji su dopušteni na vašem popisu dopuštenih^{(Whitelist )} veza. Stoga^(Hence) će učenje kako blokirati program vatrozida pomoći svima da održe integritet i sigurnost podataka.

1. Pritisnite tipku Windows Key + S za pokretanje pretraživanja, zatim upišite  vatrozid^{(firewall )} u traku za pretraživanje i odaberite  Windows vatrozid^{(Windows Firewall )} iz rezultata pretraživanja. 

2. Sada idite na Prilagodi postavke^{(Customise Settings)} . 

3. Pod  postavkama javne mreže odaberite ^{(Public network)}Blokiraj sve dolazne veze, uključujući one na popisu dopuštenih programa^{(Block all incoming connections, including those in the list of allowed programs)} , a zatim  U redu^(OK) .

Kada završite, ova vam značajka i dalje omogućuje slanje i primanje e-pošte, a možete čak i pregledavati internet , ali vatrozid će automatski blokirati druge veze.

Pročitajte također: ^{(Also Read:)} Rješavanje problema s vatrozidom za Windows u sustavu Windows 10^{(Fix Windows Firewall problems in Windows 10)}

Kako blokirati program u  Windows vatrozidu^{(Windows Firewall)}

Pogledajmo sada najbolji način za blokiranje aplikacije da koristi mrežu pomoću Windows vatrozida^{(Windows Firewall)} . Iako trebate da vaše aplikacije imaju slobodan pristup mreži, postoji niz okolnosti u kojima biste mogli spriječiti da aplikacija dobije pristup mreži. Istražimo kako spriječiti aplikaciju da dođe do lokalne mreže i Interneta^(Internet) . Ovaj članak ilustrira kako blokirati program na vatrozidu: 

Koraci za blokiranje programa u vatrozidu Windows Defendera^{(Steps to Block a Program in Windows Defender Firewall)}

1. Pritisnite tipku Windows Key + S za pokretanje pretraživanja, zatim upišite  vatrozid^{(firewall )} u traku za pretraživanje i odaberite  Windows vatrozid^{(Windows Firewall )} iz rezultata pretraživanja. 

2. Kliknite na Napredne postavke^{(Advanced settings)} na lijevom izborniku.

3. S lijeve strane navigacijske ploče kliknite opciju Outbound Rules .

4. Sada na krajnjem desnom izborniku kliknite na Novo pravilo^{(New Rule)} pod Akcije. 

5. U čarobnjaku za novo odlazno pravilo^{(New Outbound Rule Wizard)} , imajte na umu da je program omogućen, dodirnite gumb Sljedeće .^{(Next )}

6. Zatim na zaslonu programa^(Program) odaberite opciju Ovaj put programa^{(This program path)} , zatim kliknite na gumb Pregledaj^(Browse) i idite do putanje programa koji želite blokirati.

Napomena:^(Note:) U ovom ćemo primjeru blokirati Firefox da pristupi Internetu^(Internet) . Možete odabrati bilo koji program koji želite blokirati. 

7. Nakon što ste sigurni u put datoteke nakon što ste unijeli gore spomenute promjene, konačno možete kliknuti gumb Sljedeće^(Next) .

8. Prikazat će se zaslon akcije . ^(Action)Kliknite ^(Click)Blokiraj vezu^{(Block the connection)} i nastavite klikom na Dalje^(Next) .

9. Na zaslonu Profila^(Profile) bit će prikazano nekoliko pravila , a vi morate odabrati pravila koja se primjenjuju. U nastavku su objašnjene tri opcije:

• Domena:^(Domain:)  kada je vaše računalo povezano s korporativnom domenom, primjenjuje se ovo pravilo.
• Privatno:^(Private:) kada je vaše računalo spojeno na bilo koju privatnu mrežu kod kuće ili u bilo kojem poslovnom okruženju, ovo pravilo vrijedi. 
• Javno:^(Public:)  kada je vaše računalo spojeno na bilo koju javnu mrežu u hotelu ili bilo kojem javnom okruženju, ovo pravilo se primjenjuje. 

Na primjer, kada ste spojeni na mrežu u kafiću (javno okruženje), morate označiti opciju Javno^(Public) . Kada ste spojeni na mrežu u kućnom/poslovnom mjestu (privatno okruženje), morate označiti opciju Privatno^(Private) . Kada niste sigurni koju mrežu koristite, označite sve okvire, to će blokirati povezivanje aplikacije sa svim mrežama^{(check all the boxes, this will block the application from being connected to all the networks)} ; nakon što odaberete željenu mrežu, kliknite Dalje.^(Next.)

10. Na kraju, ali ne i najmanje važno, dajte naziv svom pravilu. Predlažemo da koristite jedinstveno ime kako biste ga kasnije mogli prisjetiti. Kada završite, kliknite gumb Završi^{(Finish )} .

Vidjet ćete da je novo pravilo dodano na vrh Odlaznih pravila^{(Outbound Rules)} . Ako je vaša primarna motivacija samo opće blokiranje, onda postupak ovdje završava. Ako trebate precizirati pravilo koje ste razvili, dvaput kliknite na unos i izvršite željene prilagodbe.

Preporučeno:^{(Recommended:)}

• Kako blokirati bilo koju web stranicu na računalu, telefonu ili mreži^{(How to Block Any Website on Your Computer, Phone, or Network)}
• Popravak Nemogućnost aktiviranja vatrozida Windows Defendera^{(Fix Unable to Activate Windows Defender Firewall)}
• Savjet za Windows 10: Kako blokirati pristup internetu^{(Windows 10 Tip: How to Block Internet Access)}
• Popravite Microsoft Teams se stalno ponovno pokreće^{(Fix Microsoft Teams Keeps Restarting)}

Nadamo se da vam je ovaj vodič bio od pomoći i da ste uspjeli blokirati ili deblokirati programe u vatrozidu Windows Defendera^{( block or unblock programs in Windows Defender Firewall)} . Ako imate bilo kakvih upita/komentara u vezi s ovim člankom, slobodno ih ostavite u odjeljku za komentare.

How to Block or Unblock Programs In Windows Defender Firewall

Windows Firewall iѕ аn application that actѕ aѕ a filter for your PC. It ѕcans the information in the website coming to your system and potentially blocks the harmful details beіng entered into it. Sometimes you might find sоme programѕ that won’t load and eventually уoυ find out that the program is blocked by Firewall. Similarly, you might find some suspicious programs on your device and you’re worried that they might cause harm to the device, in such cases, it is advised to blоck the programs in Windows Defender Firewall. If you have no idea how to do it, here is a guidе оn how to block or unblock programs in Windows Defender Firewall. 

How to Block or Unblock Programs In Windows Defender Firewall

How does a Firewall work?

There are three basic types of firewalls that every company uses to maintain its data security. First, they use this to keep their devices out of destructive elements of the network.

1. Packet Filters: Packet filters analyze the incoming and outgoing packets and control their internet access accordingly. It either allows or blocks the packet by comparing its properties with pre-determined criteria like IP addresses, port numbers, etc. It is best suited for small networks where the entire process comes under the packet filtering method. But, when the network is extensive, then this technique becomes complicated. It must be noted that this firewall method is not suited to prevent all the attacks. It cannot tackle application layer issues and spoofing attacks.

2. Stateful Inspection: Stateful inspection withholds robust firewall architecture that can be used to examine traffic streams in an end-to-end manner. This type of firewall protection is also called dynamic packet filtering. These super-fast firewalls analyze the packet headers and inspect the packet state, thereby providing proxy services to ward off unauthorized traffic. These are more secure than packet filters and are employed in the network layer of the OSI model.

3. Proxy Server Firewalls: They provide excellent network security by filtering the messages at the application layer.

You will get an answer for blocking and unblocking programs when you know about the role of the Windows Defender Firewall. It can prevent some programs from being connected to the Internet. However, it won’t allow access to a network if a program seems to be suspicious or unnecessary.

A newly installed application will trigger a prompt that asks you whether the application be brought as an exception to Windows Firewall or not.

If you click Yes, then the installed application is under an exception to Windows Firewall. If you click No, then whenever your system scans for suspicious content on the Internet, the Windows Firewall blocks the application from connecting to the Internet.

How to Allow a Program Through Windows Defender Firewall

1. Type firewall in the Search Menu then click on Windows Defender Firewall.

2. Click on the Allow an app or feature through Windows Defender Firewall from the left hand menu.

3. Now, click on the Change settings button.

4. You can use Allow another app… button to browse your program if your desired application or program does not exist in the list.

5. Once you have selected the desired application, make sure to checkmark under “Private” and “Public“.

6. Finally, click OK.

It is easier to allow the program or feature rather than blocking the application or part by Windows Firewall. If you’re wondering how to allow or block a program through Windows 10 Firewall, following these steps will help you do the same.

Whitelisting Apps or Programs with the Windows Firewall

1. Click Start, type firewall in the search bar, and select Windows Firewall from the search result. 

2. Navigate to Allow a program or feature through Windows Firewall (or, if you use Windows 10, click Allow an app or feature through Windows Firewall).

3. Now, click on the Change settings button and tick/untick the boxes next to the application or program name. 

If you want to access the Internet on your home or business environment, checkmark the Private column. If you wish to access the Internet in a public place like a hotel or a coffee shop, checkmark the Public column to connect it via a hotspot network or a Wi-Fi connection.

How to Block All Incoming Programs in Windows Firewall

Blocking all incoming programs is the safest option if you deal with highly secured information or transactional business activity. In these situations, it is preferred to block all the incoming programs entering your computer. This includes the programs that are allowed in your Whitelist of connections. Hence, learning how to block a firewall program will help everyone maintain their data integrity and data security.

1. Press Windows Key + S to bring up search then type firewall in the search bar, and select Windows Firewall from the search result. 

2. Now go to Customise Settings. 

3. Under Public network settings, select Block all incoming connections, including those in the list of allowed programs, then OK.

Once done, this feature still allows you to send and receive an email, and you can even browse the Internet, but other connections will be blocked automatically by the firewall.

Also Read: Fix Windows Firewall problems in Windows 10

How to Block a Program in Windows Firewall

Now let’s see the best way to block an application from utilizing the network using the Windows Firewall. Even though you need your applications to have free admittance to the network, there are a variety of circumstances where you may wish to keep an application from getting access to the network. Let’s investigate how to obstruct an application from getting to the local network and Internet. This article illustrates how to block a program on a firewall: 

Steps to Block a Program in Windows Defender Firewall

1. Press Windows Key + S to bring up search then type firewall in the search bar, and select Windows Firewall from the search result. 

2. Click on the Advanced settings from the left menu.

3. To the left of the navigation panel, click on the Outbound Rules option.

4. Now from the far right menu, click on New Rule under Actions. 

5. In the New Outbound Rule Wizard, note the Program is enabled, tap the Next button.

6. Next on the Program screen, select the This program path option, then click on the Browse button and navigate to the path of the program you want to block.

Note: In this example, we are going to block Firefox from accessing the Internet. You can choose any program you wish to block. 

7. Once you are sure about the file path after making the changes mentioned above, you can finally click the Next button.

8. Action screen will be displayed. Click on Block the connection and proceed by clicking Next.

9. Several rules will be displayed on the Profile screen, and you have to select the rules that apply. Three options are explained below:

• Domain: When your computer is connected to a corporate domain, this rule applies.
• Private: When your computer is connected to any private network at home or in any business environment, this rule applies. 
• Public: When your computer is connected to any public network in a hotel or any public environment, this rule applies. 

For example, when you are connected to a network in a coffee shop (public environment), you have to check the Public option. When you are connected to a network in a home/business place (private environment), you have to check the Private option. When you are unsure of what network you use, check all the boxes, this will block the application from being connected to all the networks; after selecting your desired network, click Next.

10. Last but not least, give a name to your rule. We suggest that you use a unique name so that you can recall it later. Once done, click the Finish button.

You will see that the new rule is added to the top of Outbound Rules. If your primary motivation is just blanket blocking, then the procedure ends here. If you need to refine the rule you have developed, double-click on the entry and make the desired adjustments.

Recommended:

• How to Block Any Website on Your Computer, Phone, or Network
• Fix Unable to Activate Windows Defender Firewall
• Windows 10 Tip: How to Block Internet Access
• Fix Microsoft Teams Keeps Restarting

We hope that this guide was helpful and you were able to block or unblock programs in Windows Defender Firewall. If you have any queries/comments regarding this article, then feel free to drop them in the comments section.

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