internet-connection

问题 This question has been asked before but mine is a bit different. I want to install a bunch of rpm packages using sudo yum. I do not have internet connection on the machine I want to install them on. These packages also do not exist on any machine in the network. Is there a way I can install them without internet connectivity and with them not anywhere on any machine in the network (so cannot use --downloadonly option) ? 回答1: if you have the RPM files on your local machine or any machine (not

问题 This question already has answers here : How can i use a BackgroundWorker with a timer tick? (6 answers) Closed 2 years ago . I wrote this in VB.NET: Function Net() As Boolean Return My.Computer.Network.Ping("216.58.209.142") End Function Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load Try If Net() = True Then InternetConnection.ForeColor = Color.Green InternetConnection.Text = "OK" ElseIf Net() = False Then InternetConnection.ForeColor = Color.White

问题 In my code I used to use three ways for checking Internet, but there is limits to them: 1/ Reachability method: - (BOOL)isInternetOk { Reachability *curReach = [Reachability reachabilityWithHostName:@"apple.com"]; NetworkStatus netStatus = [curReach currentReachabilityStatus]; if (netStatus != NotReachable) //if internet connexion ok { return YES; } else { return NO; } } Limit: It works in the most case, but my problem is that if I connect an antenna Wi-Fi without no internet on it, it says

问题 I have docker containers running on Ubuntu 16.04 on Digital Ocean. They worked well but one day (I think it happened after TOR1 Droplet Reboot 2018-02-28 16:00 UTC [Spectre and Meltdown Mitigation] but I'm not sure) they have lost their internet connection and I do not know why and how to make it work. I have tried many different solutions from other answers but without success. I have tried the answers from this question, tried to disable ufw , tried to reboot OS. I have even tried to update

问题 I can get the connection status using window.navigator.onLine and using the HttpInterceptor as mentioned below i can get access to requests globally. But how do i cancel a request inside the HttpInterceptor? Or else is there a better way to handle this? import { Injectable } from '@angular/core'; import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http'; import { Observable } from 'rxjs/Observable'; @Injectable() export class InternetInterceptor implements

问题 I am getting below exception android.os.NetworkOnMainThreadException because I don't use an async task to make the particular network operation. I have searched for this, but it got me so confused. Could someone make it work with async task and the particular functions? Below are two functions i use : 1) isNetworkAvailable() private boolean isNetworkAvailable() { ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo

问题 How can I check for an internet connection constantly in my application and respond if the connection is not available? Currently I am using: while(true) { if(HasConnection()) { //doSomething.. } //stop app by 1sec } but it seems rather inelegant. 回答1: The accepted answer to this question on superuser describes the way the Windows determines if it has network access. You could use a similar method, but I would spawn a separate thread when your application starts that is responsible for doing

问题 How can I check for an internet connection constantly in my application and respond if the connection is not available? Currently I am using: while(true) { if(HasConnection()) { //doSomething.. } //stop app by 1sec } but it seems rather inelegant. 回答1: The accepted answer to this question on superuser describes the way the Windows determines if it has network access. You could use a similar method, but I would spawn a separate thread when your application starts that is responsible for doing

问题 How can I know if the phone has internet connection? (Whether WiFi or Data) Sometimes the phone is connecting to WiFi without internet connection like HotSpots. So I want a code to know if the phone is connecting to internet. 回答1: You can simply try: if (NetworkInformation.GetInternetConnectionProfile() == null) { //no connection } As you can see in this msdn documentation:NetworkInformation.GetInternetConnectionProfile It will return null if there is "no connection profile with a suitable

问题 In one of my iPhone app, I need to find out whether there is internet connection with the device or not. Anyone pls help? 回答1: Use Reachability class. if([self checkInternetConnected] ) { NSLog(@"Internet connected\n"); } - (BOOL)checkInternetConnected { Reachability *reachability = [Reachability reachabilityForInternetConnection]; NetworkStatus networkStatus = [reachability currentReachabilityStatus]; return !(networkStatus == NotReachable); } You can get rechability class here : Download