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Questions tagged [hotspot]

A hotspot is a physical location where people may obtain Internet access, typically using Wi-Fi technology.

A hotspot is a physical location where people may obtain Internet access, typically using Wi-Fi technology, via a wireless local area network (WLAN) using a router connected to an internet service provider. The service can also be provided by a smartphone using its cellular data to connect to the isp.

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Connect Google Home with iPhone 6 personal hotspot

I am trying to use Google Home Mini with iPhone 4g personal hotspot. When I am setting up Google home I get the error You are currently not on the same Wi-Fi network as your device. Please connect to the appropiate network. Is it possible to connect…
doorman
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How to monitor JVM and know whether it is a minor GC or major GC for Parallel GC in real time way?

Oracle provides some tools for monitoring. But I cannot use visual tools since I am using a terminal. Also, jstat utility cannot tell whether it is a minor GC or major GC when I use Parallel GC. Is there any interface that I can detect whether it…
skytree
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Where is the assembly implementation code of the intrinsic method in Java HotSpot?

from http://hg.openjdk.java.net/jdk8/jdk8/hotspot/file/87ee5ee27509/src/share/vm/classfile/vmSymbols.hpp, I can see the intrinsic method declare like: do_intrinsic(_getByte, sun_misc_Unsafe, getByte_name, getByte_signature, F_RN) \ but how to find…
Jason
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iOS Captive Network Assistant behavior on Hotspots

We have a hotspot product using SMS authentication method. The user chooses our WiFi Hotspot network and is redirected to our login page. On iOS and Adroid, a Captive Portal pop-up is activated showing our login page. We ask users to fill in a form…
teledot
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How does java virtual machine connect user level function to its internal functions?

How does JVM translate API to its implementation inside JVM? Is it similar to "Linux Kernel syscall" implementation? If so, where are these interfaces? Hope to see the source code. Figure from…
skytree
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How do GC in HotSpot cooperate with each other

As we all know that in HotSpot there are seven GCs like Serial,CMS,G1 and so on.What I am confused is that all of them or only part of them is working at a time? How do them cooperate with each other to cover the task of garbage collection? I…
Souger
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How do String oops and mirror oops generate by Hotspot VM?

In openjdk8 source code, I find that some java.lang.String oop do not go through bytecode engine and allocate by jvm itself. As hotspot/src/share/vm/classfile/javaClasses.cpp:185 says: Handle java_lang_String::create_from_unicode(jchar* unicode, int…
wind2412
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Internet connection issue

In my app I am checking internet connection with below method : public static boolean isOnline(Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo =…
Mashuk Khan
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Udhcpd read /etc/hosts like dns

I'm building a hotspot with udhcpd and nginx (Linux raspbian, 4.9.41-v7+, armv71). It's working very well, but i want that user enter "home" instead "192.168.2.1" on browser to access my portal. I set-up the following…
Evandson Dantas
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ARP table Flag field in hotspot

Below is a sample row which I am getting from ARP table (of course the side names were putted by me): IP::192.168.43.184::HW typ::0x1 :: Flags::0x0::HW address::70:bb:c0:bb:99:66 :: Mask:: ::Device::wlan0 I saw the Flag field became 0x2 the moment…
Azim
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Does Java hotspot compiler remove dead code involving an instance variables known final state

In the following code it is clear that baa is always false. Will the hotspot compiler spot this and remove the isBaa() method call and contained code? public class Foo() { public final boolean baa = false; public isBaa() { return…
teknopaul
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Creating a Wi-Fi local network with no Internet access in RaspberryPi3

I need to create a wireless network with no Internet access with a Pi, because I need to communicate to it with an Android smartphone and a laptop, but being the RPi the highest step in the network hierarchy. I've found -and tried- that I can do an…
Eileen
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Using beef js injection without MITM attack?(In HOTSPOT mode)

I'm runnning the Kali Nethunter on my android and i'm able to get the beef-xss running on it fine. The js hooks are on the http://gateway:3000/hooks.js But i can't use mitmf to inject as i'm running my own hotspot of android phone. Is there any…
NOpe nope
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Prepaid Hour Limited Access to HotSpot using freeradius

I am trying to set up a dynamic hotspot system. Users will pay for a certain amount and will be granted access to internet for, let's say, an hour. I will write an application that will make the necessary changes in Radius mysql database. It will be…
krypt
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How to determine region size automatically generated by g1gc?

Documentation says that: Upon startup, the Java Virtual Machine (JVM) sets the region size How could I determine what size was chosen for g1gc regions at the startup? How to get notification when it is changed during runtime? I had tried to log gc…
ayvango
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