Why am I unable to ping another computer in the same local network?
Gather information.Isolate the problem.Analyze the problem.Test a fix.Repeat.This is Troubleshooting 101. First, gather information. For each computer:IP Address:Subnet Mask:Default Gateway:Software Firewall Enabled?Antivirus or Security Software installed?Are they using the same gateway and subnet? If not, they probably won’t talk. Is there a software firewall like Windows Firewall enabled? If so, you’ll need to add an exception for Synergy (recommended) or turn off the firewall (not recommended). Ping can also be disabled on a machine, so that’s possible too.Most likely? They’re not on the same network - 192.168.1.x is not the same network as 192.168.0.x when using a /24 CIDR (a subnet that is 255.255.255.0).
Why does Netflix use TCP and not UDP for its streaming video?
On-demand video streaming meets with TCP in their nature. First, video streaming adopts pre-fetching and buffering to achieve smooth play-out. TCP provides such (network) buffer, as well as the reliable transmission guarantee for no loss of frame - though a frame could still miss the playout deadline and gets discarded, however.Second, TCP's bandwidth probing and congestion control will attempt to use all of the available bandwidth between the server and client, fetching content as quickly as possible while being friendly to other (TCP) traffic on the same links.On the other hand, live video streaming opts in UDP, because little pre-fetching can be done in live streaming and the more the buffering the greater the video play-out delay. Since UDP serves only the most basic transport layer functionality, it will be used jointly with other application-layer, video-specific protocols such as RTSP to perform video streaming. Firewalls (from enterprises, ISPs) dislike these protocols (unlike TCP, these protocols can relentlessly consume valuable bandwidth; See: TCP congestion control), making the carried video traffic difficult to traverse through or being throttled.In order to deliver videos, platforms adopt/rent Content Delivery Networks (CDN). Most of the CDN servers (e.g. Akamai's) were originally and already configured to support web services as their primary course. Thus, streaming video over HTTP works out of the box without setting up dedicated servers, and most of the firewalls won't block HTTP traffic. In fact, Dynamic Adaptive Streaming over HTTP (DASH) has become a common practice. Although in theory HTTP can be encapsulated in other protocols, these protocols still need to provide reliable transfer (as what normal HTTP presumes; See: Hypertext Transfer Protocol), which again precludes UDP. Notably, Netflix builds their own CDN.
What is the best internet speed for gaming?
Depends on what you want to do with your gaming. If you just want to play online games, a speed of around 5+ Mbps download speed should be okay if the server is in your immediate area. Even if it isn't in your immediate area, if it's an MMORPG you should be fine with that kind of connection, which may give you anywhere from 50-300 ms of ping time depending on how far away the server is. If you want to stream your gaming sessions (on Twitch, for example), you're going to need a connection with good upload speed, perhaps around 3+ Mbps or more, depending on how good you want your stream to look. In practice, around 5+ Mbps of upload speed should be enough. If you just want to download games as fast as possible, then get the fastest connection you can reasonably afford.
How can I get a fixed (static) IP address on a SIM card?
Request it from your provider.
What are the best apps for hacking an Android mobile?
Hi,In many sites and blog you will get lots of references of many android hacking apps. But most of them hardly works. And almost all of them have some hidden tricks to make them work.In my site I have enlisted 7 Best Free Hacking Apps For Android Phones (2018 Edition), which may work for you. Here I am giving a summery of it. To grab a detail idea you can check my site.1. AndroRATAndroRAT is the one of the most popular free hacking tool has been released because of a client/server application. This app can draw the information out from the android device silently. This app can provide you the access to trigger your server connection with way of a call or SMS.2. HackodeIn the second number I have listed Hackode. From this app, you can find 3 modules Those are Reconnaissance, Scanning, Security Feed — available in this application. From this app you will get the functions like Google hacking, SQL Injection, MySQL Server, Who Is, Scanning, DNS lookup, IP, MX Records, DNS Dif, Security Rss-feed, Exploits and more.3. zANTIThis software suite have multiple tools which are used for penetration testing purposes. It makes possible to scan a network easily and successfully simulate the advanced hacking environment to automatically detect multiple malicious techniques.4. FreedomThis app needs a Rooted device. With this you can use to making free In-App purchase (IAP). It generates a faux setup by the google pockets and introduces our fancied variable from the software.5. cSploitWith this tool you can enumerates local hosts, locates vulnerabilities and their exploitsand cracks wi fi password, and installs backdoors and many more.6. FaceNiffFaceNiff lets you intercept and sniff your wi fi network traffic. This app is is the best tool to snoop into face-book, Twitter and other social networking sites with your Android device.7. Shark for RootIts a security tool for both experts and hackers. You can use it to snip traffic and. You can utilize the tcpdump command for rooted Android devices.
What is the minimum Internet speed required to stream 4K video from YouTube?
Minimum: 16 Mbps download, 512 Kbps uploadRecommended: 20 Mbps download, 1 Mbps upload
How does the police track VPN users?
Many people here say that “Police will just contact VPN company”. For the sake of example, do you really think an Indonesian VPN company will care if a UK police asks them to reveal anything? And what if you use multiple VPNs - Indonesian VPN - Afghan - Moroccan. Do you really think UK police will go through all of the companies and they will all agree to give the info? Even if they do, it would take police months if not years to get all the info because of all the bureaucracy. UK police can of course contact Indonesian police, but in many countries the local police does not even have departments which investigate cyber crimes yet (perfect countries for hackers), so it is possible that Indonesian police would not even be able to help the UK police. I think everything is not as simple as many people here say.