Questions tagged [firewall]
A firewall is a software program or piece of hardware that helps screen out hackers, viruses, and worms that try to reach your computer over the Internet. Usage of this tag may be aligned to users concerned with suspected malware creeping into their devices, setting a filter to allow certain applications to access internet and general monitoring of incoming/outgoing network connections
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Unable to connect via adb on a firewalled Android device
Connecting from Linux, using an older adb (downloaded at tried 1.0.41 just to troubleshoot this - no difference, except that the messages now do include "Connection refused"), and the ...
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How to route local traffic to LAN/WIFI on Android 11 with VPN enabled? (Rooted)
I have a rooted Android 11 device and I use a VPN app with the option Block connections without VPN enabled. This prevents any apps on my phone from communicating with my PC on the same LAN/WIFI ...
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Unsual Firewall Traffic from Phone and Messaging Storage Group
I'm using Rethink DNS to monitor traffic.
I'm curious as to why the 'Phone and Messaging Storage' group would be reaching out to google domains in addition to app.hubspot.com.
Attached are the ...
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Android: how to use adb commands to block/unblock specific app from using the Internet, on rooted device if needed?
Background
I want to temporarily block a specific app from using the Internet on my Android device, using a batch file. The device is rooted, so it should be possible via the PC.
The problem
I ...
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What should be whitelisted in a firewall to allow push-notifications?
I'm using a firewall (NoRoot) on (Samsung) Android (10) to try to harden it, but now, push-notifications aren't coming through. I'm trying to figure out which apps/services are responsible for that ...
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Opening iptables for initial Android setup blocks connectivity
I installed an AOSP Android 12 based ROM with root. I set up a simple custom stateful iptables firewall to block all connectivity except for a browser. I connect to WiFi and there is no internet. This ...
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ADB/PM command to disable data and wifi access for Apps
Is there a way via adb shell to disable an apps access to WiFi and Data? I'd like to turn off internet for all apps and then selectively turn it on for required apps.
I know the manual way by going to ...
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Does Android allow incoming connections?
Some posts explain, that Android OS has all ports open by default with a policy to accept all incoming connections. But od a "NetGuard" Android project they mention "Android does not ...
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BenQ RP7502 won't update Apps
We are using BenQ Interactive Flat Panels (IFPs) at school, and we are having issues with updating the apps.
The firewall rules we have set up should bypass all authentication, but when it comes to ...
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How to override (or a least view) the RDNSS ipv6 DNS? (root)
As far as ipv4 DNS is concerned, Android (at least version 9) can override default DNS settings fairly well.
Firstly, it is possible to set net.dns* to the desired value.
Secondly, iptables -t nat ...
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How to prevent network connectivity after a phone restart before the NetGuard firewall starts blocking apps' traffic?
There seems to be a major vulnerability in Android: even when using firewalls these aren't active immediately after a restart.
The seconds before the firewall (NetGuard) starts can be used by apps ...
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Detect the Incoming TCP Packets
I am developing a feature in my application for screen mirroring for which I need to open a wide range of ports (approx. 10000 number of ports) in my android system. It is a risk to open all these ...
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I need to block some videos (inside Youtube app) and sites (inside Chrome or another browser) using keyword
example: I want to block pages/videos where the content/title contains the word "fish". How can I do it? Thank you.
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How can I block a certain app from connecting to the internet?
I'm trying to stop Microsoft SwiftKey keyboard from connecting to the internet. Phone is Android 7, rooted. I have it blocked on AFWall+
But despite that, I can see through PCAPdroid (thanks to @Izzy ...
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How can I find out if my keyboard is connecting to the internet?
I have it cut off from the internet on AFWall+ and I'm using XPrivacyLua with everything checked except "read clipboard". How can I now make sure whether or not it's connecting to the ...
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