[APP][6.0+] NetGuard - No-root firewall

[TheMystic]

I am sorry, but I have no plans to change this. Nobody ever asked for this and I think it will be confusing and not adding anything seen from the perspective of what the app does.

This isn't a new feature request, instead an improvisation over something that already exists. There is always a first time for everything. As a user, I can only make suggestions for improvement. It's your call in the end.

 

[Spirch]

in a weird way I just found out about netguard, I used another vpn firewall for the past few years which is VERY basic compared to this

I'm playing around and so far I think I will ditch the other for netguard and even buy some feature or the pro soon

I like the whitelist / notification pattern a lot.

question, is there a list of "recommended allow" of system app out there? if it help, for samsung note 9 / android 10

my "current soon to be ditched" firewall is blacklist pattern only, I just want to be sure I don't cause any annoyance / issue to myself so any hint / recommendation would be welcome

also, for the dev, nice work!

 

[M66B]

Hi Marcel Good Day
I liked Netguard so much I wanted it on my Wiondows 10 PC too, I am using TinyWall Firewall right now and it does the job but I wanted Netguard more because it is so user-friendly and simple. Do you have a windows version of NG?

NetGuard is there for Android only.

 

[OldNoobOne]

NetGuard is there for Android only.

 

[M66B]

in a weird way I just found out about netguard, I used another vpn firewall for the past few years which is VERY basic compared to this

I'm playing around and so far I think I will ditch the other for netguard and even buy some feature or the pro soon

I like the whitelist / notification pattern a lot.

question, is there a list of "recommended allow" of system app out there? if it help, for samsung note 9 / android 10

my "current soon to be ditched" firewall is blacklist pattern only, I just want to be sure I don't cause any annoyance / issue to myself so any hint / recommendation would be welcome

also, for the dev, nice work!

There are so many different devices and Android versions, it isn't possible to give more than some basic advice. Blocking system apps and system components can result in trouble, but will be reversible, although some things are cached for a long time.

 

[OldNoobOne]

There are so many different devices and Android versions, it isn't possible to give more than some basic advice. Blocking system apps and system components can result in trouble, but will be reversible, although some things are cached for a long time.

Marcel, I blocked all the System Apps from accessing WiFi & Data, but I see SMS still working even though Messaging App is blocked, so my question is do some system apps still make it past NG block?

 

[M66B]

Marcel, I blocked all the System Apps from accessing WiFi & Data, but I see SMS still working even though Messaging App is blocked, so my question is do some system apps still make it past NG block?

SMS doesn't use the internet and can therefore not be blocked by NetGuard.

 

[Spirch]

There are so many different devices and Android versions, it isn't possible to give more than some basic advice. Blocking system apps and system components can result in trouble, but will be reversible, although some things are cached for a long time.

ok, I have turned on "notify on internet access", i will check when thing want to do something one by one

in the mean time, if anyone have a list or something, let me know

 

[OldNoobOne]

SMS doesn't use the internet and can therefore not be blocked by NetGuard.

Thanks for that info Marcel,
I asked because I saw Messaging listed as blocked on NG and I thought if messaging app shows blocked but still works then are the rest of the system apps sttill ON though they show as blocked, so that clears my doubt.

 

[wudangnic]

Starting couple of days ago I start to receive this annoying notification (from netguard) that netguard was installed. I dismiss it repeatedly but keep showing. How can I get ride of it?

 

[M66B]

Starting couple of days ago I start to receive this annoying notification (from netguard) that netguard was installed. I dismiss it repeatedly but keep showing. How can I get ride of it?View attachment 5648475

Please read a few comments back.

 

[and1ronik]

hey Marcel just updated to 2.302 thank you man. i have a question that is concerning me for a few months and no matter how hard i tried to find an answer i was not able.

please tell me if you have any idea. NG shows noname attempts to some destinations such as apple.com Proton AG and many others. those attempts are not initiated by me 100%. sometimes device was not in use at all, sometimes it was used but no usage can be correlated with those domains. sometimes device was used to share internet with my laptop as a hotspot. here i have first suspect on my laptop i do use proton vpn. some time ago i used a different vpn and it's domain also was logged by NG - but i remember how you assured that tethered traffic will never be routed through android's vpn due to its architecture. and attempts to apple.com are a complete mystery as i do not use anything associated with apple, no devices no apps no services.

Marcel please, take some time to explain me why NG log reflects this? and the blank space in app's name and id in those attempts?

 

[M66B]

hey Marcel just updated to 2.302 thank you man. i have a question that is concerning me for a few months and no matter how hard i tried to find an answer i was not able.

please tell me if you have any idea. NG shows noname attempts to some destinations such as apple.com Proton AG and many others. those attempts are not initiated by me 100%. sometimes device was not in use at all, sometimes it was used but no usage can be correlated with those domains. sometimes device was used to share internet with my laptop as a hotspot. here i have first suspect on my laptop i do use proton vpn. some time ago i used a different vpn and it's domain also was logged by NG - but i remember how you assured that tethered traffic will never be routed through android's vpn due to its architecture. and attempts to apple.com are a complete mystery as i do not use anything associated with apple, no devices no apps no services.

Marcel please, take some time to explain me why NG log reflects this? and the blank space in app's name and id in those attempts?

The log file show which traffic flows through NetGuard and Android delivers the app info for connections. Unfortunately, there isn't much more I can tell you.

 

[develund]

Hi, I have only recently discovered NetGuard, but I am becoming a big fan. So thank you Marcel, also for FairEmail, which is hands down the best email application!

One issue I seem to be having is that Android Auto sometimes has trouble connecting to my car. I once received an error message saying this could be related to a VPN, if I'm using one. Unfortunately, I cannot find Android Auto in the list of apps within Netguard to allow traffic. What can I do?

 

[M66B]

Hi, I have only recently discovered NetGuard, but I am becoming a big fan. So thank you Marcel, also for FairEmail, which is hands down the best email application!

One issue I seem to be having is that Android Auto sometimes has trouble connecting to my car. I once received an error message saying this could be related to a VPN, if I'm using one. Unfortunately, I cannot find Android Auto in the list of apps within Netguard to allow traffic. What can I do?

Did you enable managing system apps in the advanced settings?

 

[develund]

Did you enable managing system apps in the advanced settings?

Thanks for the quick response. And no, I did not. Now I did and I see Android Auto. But from what I understand, if the setting is off, all system apps are allowed full access and NetGuard cannot be the problem?

 

[M66B]

Thanks for the quick response. And no, I did not. Now I did and I see Android Auto. But from what I understand, if the setting is off, all system apps are allowed full access and NetGuard cannot be the problem?

If managing system apps is off, system apps will be allowed.

 

[svendsvin]

Been testing different settings a lot lately and found that having Filter traffic enabled courses considerable battery loss. Is it safe to have Filter traffic disabled? I know about #6 in FAQ but it doesn’t really enlighten me.

 

[OldNoobOne]

If managing system apps is off, system apps will be allowed.

But Marcel what surprises me is that when a Pseudo-VPN Firewall (Example -NG) blocks system apps from connecting to the net why doesn't the device become heated? because my reasoning is that as the system apps are continuously trying to connect to the net either the battery should drain faster or/and the device should become heated. Just wanted clarity, curious.

 

[M66B]

But Marcel what surprises me is that when a Pseudo-VPN Firewall (Example -NG) blocks system apps from connecting to the net why doesn't the device become heated? because my reasoning is that as the system apps are continuously trying to connect to the net either the battery should drain faster or/and the device should become heated. Just wanted clarity, curious.

Any decent app will use a logarithmic back-off scheme instead of continuously retrying (=linear back-off). For example, see here how FairEmail handles this:

https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq123