pelya

Because you won’t determine the type of NAT during hole punching. This requires the client sending two UDP packets to two different IP addresses, then comparing their source addresses on the server.

Normally yes, you can just assume that two clients you are trying to connect both have port restricted cone NAT, and run the hole punching algorithm, and if the connection fails after ten seconds, show message to the users ‘Error 418: your router is a teapot’.

The one use case is running STUN/TURN server for NAT hole punching, that requires two separate servers, or one server with two IP addresses. You will only need that to run masterserver for games that support hole punching, or to run VoIP telephony / teleconference server.

Another use case is reliability, when your server is connected to several network providers, it will keep working if one of them has an outage, and will naturally have a different IP address for each network link. But your VPS does not have several network links, otherwise they would advertize that in bold red letters.

It’s supposed to be available on Android 15, but only on ‘select devices’, so probably only on Pixel.

Thanks for trying it.

You need to enter these commands in the Linux terminal app, not in the X server app. Once the two apps connect, it should be possible to launch another terminal inside the X server.

• Go to your phone Settings > About Phone and tap “Build number” seven times. You will receive notification that your phone now has developer options enabled.

• Settings > System > Developer Options > Linux development environment. On that page, tap the On/Off slider.

• You will find an icon for the new Terminal app on your home screen. It’s going to download 500 MB of data when you open it.

• Long-press the Terminal app icon, tap Info > Mobile data, and enable Unrestricted data usage.

• Now you can download more packages inside your Linux virtual machine using apt-get command, as described in my previous post.

Yup, Android is Linux, but you can’t run desktop apps on it like Gimp or LibreOffice or VS Code, that’s what Linux terminal is capable of.

Google’s bullshit strikes again! All apps must be built for Android 13 or they are removed from Play Store, apparently because Google could not do the Android security correctly for the first 12 versions. Now they can emulate Linux on Android, but cannot emulate an older version of Android on Android. And I last updated my app in 2021, during Android 11 era.

Here’s the link to sideload the app:

https://sourceforge.net/projects/libsdl-android/files/apk/XServer-XSDL/XServer-XSDL-1.20.51.apk/download

I’ll try to update it on Play Store tomorrow, if my crusty build scrips will work with the new Android SDK.

Someone who owns a fancy new phone with Android 15 or 16, could you please test if you can run GUI Linux apps on it using my X server app?

Supposedly it should work like this:

• Install and run XSDL app
• Go to home screen, open Linux terminal
• Run commands

sudo apt-get install task-xfce-desktop
export DISPLAY=127.0.0.1:0
xfce4-session

Open XSDL app again, you should see XFCE desktop environment with mouse cursor, and you should be able to launch Synaptic and install other Linux packages.

I have switched from XTerm to Konsole only a year ago.

it’s used to verify that OpenGL ES2 works on your system. It’s the variant of 3D graphics drivers that is used on smartphones. Many apps nowadays write their GFX frontend with GLES2 so it uses the same code on phones and PCs, and if they compile the app to run in the web browser, WebGL is also based on GLES2.

The security issue is very likely scenario. If you’re in Russia, you can go to jail at any moment on totally bogus charges. It is very easy for FSB to pressure some random kernel maintainer into adding hard to detect backdoor into their code, it will be XZ situation all over again.

Yes they do. See the long-standing debate over the ban to export crypto algorithms to Iran.

What about systemctl poweroff ?

Inside the building it’s the first floor, even if it’s exactly at the sea level altitude. Outside the building it’s the ground. Basement levels start at minus one, there is no zeroth floor.

If the walkway goes inside the building, then yes. And the walkway usually leads directly to the second floor, because the airplane door is 3 metres above the ground.

In the UK it’s called a ground table.

Yet I still had an urge to explain an obvious thing. Because it’s C++, so everyhing goes. There are even tools to auto-generate C++ interfaces, because of course someone decided that C++ is inadequate and must be improved using some kind of poorly-documented ad-hoc extension language on top of C++.

I know at least three ways, one of them involves variadic macros.

You don’t even need to look that far, take any sufficiently aged library, like OpenGL.

C++ is fiiiiine. Just use the modern variant of the language, don’t bother with hand-optimizing your memory allocators, and generally avoid anything involving pointer arithmetics. So, basically, use it like you would use Python.

You’ve mispronounced wcscoll.

I’m pretty sure Apple and Google already rewritten all important GNU parts into something with Apache or BSD license, to throw everything GPL licensed out of their embedded systems. The biggest and most important part was obviously GCC, replaced by Clang.

How many GPL-licensed system libraries and tools are in Android right now, except for the kernel? I’m pretty sure the answer is zero.