Download A Video From A Website To My Computer
Nichol Sadlon
Proxy works fine, but my issue is that i need to run UI Vision on 1 computer and remote control this from my linux server running with PHP.
Do you know how to setup remote desktop control or create a program for my windows computer i can use as an API that will then activate my UI Vision script when i call the program with cURL from my server?
you don't exclude a computer (actually either device, server, or user) from a policy. For each feature there's one policy that applies (in case of non-servers it also depends on the user). To apply different settings for certain devices or users you create an applicable additional policy. For details please see About Policies.
By design browsers do not allow this but there is always the possibility of a bug that can be exploited to gain a higher level of access to your system. These bugs are fairly rare and always fixed very quickly so this is mainly an issue if your OS or browser is out of date. Both of these auto update now so just don't disable auto updates and you can be sure of a fairly good level of protection against malicious websites.
In the case of you using your computer to visit an untrusted website, you are using browser software on your computer to initiate web requests (the HTTP or HTTPS protocol) to receive data from the remote computer. In this simple model, the remote computer has absolutely no access to your computer, but... browsers have some features which complicate this picture.
Modern browsers have a feature which allows you to upload files from your computer. A website may include a form which makes use of this feature. This feature does not give the website a view into your computer. When your browser processes such a form, it presents you with a file selection control; your browser can see the files on your computer, and when you make a selection, your browser sends the contents of that file, and only that file to the remote system. The way this feature works leads some people to believe that the website can see files on your computer when it actually cannot.
All modern browsers have JavaScript engines built into them. The website may include JavaScript code which is intended to be executed by your browser. When the browser receives JavaScript in a page, it will typically execute it automatically. JavaScript is normally used to enhance the user experience; it has certain capabilities and some limitations. The JavaScript engine can't "see" into your computer - can't see your files or what may be going on in other programs, but it can direct the browser to load other files from the same site - images, pages, etc.. JavaScript could make the browser at least attempt to download and execute a program which may have greater access to or control over your system. While JavaScript itself is limited in what it can do on your computer, it is nevertheless possible for a malicious programmer to make use of JavaScript to trick an unsuspecting user into downloading a more capable and malicious program.
TL;DR: An untrusted website cannot by itself see into your computer. But, a site can try to trick you into downloading and executing malicious software. Such software could potentially do anything on your computer. Your browser should not automatically download such software; at the very least, it should require your explicit acceptance. A malicious website could, however, try to trick you into giving such acceptance.
This is the reason why savy users have browser extensions that disable scripting at all times except for explicitly whitelisted websites which require them, and which thwart many other attacks such as cross-site request forgery and whatnot.
Browser attacks can not only allow a website to access files, they can in principle allow the website to take over your computer altogether, in the worst case. The issue is not limited to browsers, see WhatsApp video call vulnerability for a recent example. There was an exploit in a particular widely-deployed series of DSL routers a year or so ago which would allow a malicious website to take over your router even in presence of a password, if only you visited the website from your computer.
Each law enforcement agency also has a headquarters (HQ) in Washington, D.C., which has agents who specialize in particular areas. For example, the FBI and the U.S. Secret Service both have headquarters-based specialists in computer intrusion (i.e., computer hacker) cases.
Secure .gov websites use HTTPS.
A lock (LockLocked padlock) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
Cookies are small files that websites put on your PC to store info about your preferences. Cookies can improve your browsing experience by allowing sites to remember your preferences or by letting you avoid signing in each time you visit certain sites. However, some cookies may put your privacy at risk by tracking sites that you visit.
If you don't want sites to store cookies on your PC, you can block cookies. But doing this might prevent some pages from displaying correctly, or you might get a message from a site letting you know that you need to allow cookies to view that site.
In this article, we describe various web-related concepts: web pages, websites, web servers, and search engines. These terms are often confused by newcomers to the web or are incorrectly used. Let's learn what they each mean!
A web server is a computer hosting one or more websites. "Hosting" means that all the web pages and their supporting files are available on that computer. The web server will send any web page from the website it is hosting to any user's browser, per user request.
Don't confuse websites and web servers. For example, if you hear someone say, "My website is not responding", it actually means that the web server is not responding and therefore the website is not available. More importantly, since a web server can host multiple websites, the term web server is never used to designate a website, as it could cause great confusion. In our previous example, if we said, "My web server is not responding", it means that multiple websites on that web server are not available.
Many beginners on the web confuse search engines and browsers. Let's make it clear: A browser is a piece of software that retrieves and displays web pages; a search engine is a website that helps people find web pages from other websites. The confusion arises because, the first time someone launches a browser, the browser displays a search engine's homepage. This makes sense, because, obviously, the first thing you want to do with a browser is to find a web page to display. Don't confuse the infrastructure (e.g., the browser) with the service (e.g., the search engine). The distinction will help you quite a bit, but even some professionals speak loosely, so don't feel anxious about it.
A web server is a computer hosting one or more websites. \"Hosting\" means that all the web pages and their supporting files are available on that computer. The web server will send any web page from the website it is hosting to any user's browser, per user request.
Don't confuse websites and web servers. For example, if you hear someone say, \"My website is not responding\", it actually means that the web server is not responding and therefore the website is not available. More importantly, since a web server can host multiple websites, the term web server is never used to designate a website, as it could cause great confusion. In our previous example, if we said, \"My web server is not responding\", it means that multiple websites on that web server are not available.
For now, let's imagine that the web is a road. On one end of the road is the client, which is like your house. On the other end of the road is the server, which is a shop you want to buy something from.
This is called an IP address, and it represents a unique location on the web. However, it's not very easy to remember, is it? That's why the Domain Name System was invented. This system uses special servers that match up a web address you type into your browser (like "mozilla.org") to the website's real (IP) address.
Earlier we used the term "packets" to describe the format in which the data is transferred between the client and server. What do we mean here? Basically, when data is sent across the web, it is sent in thousands of small chunks. There are multiple reasons why data is sent in small packets. They are sometimes dropped or corrupted, and it's easier to replace small chunks when this happens. Additionally, the packets can be routed along different paths, making the exchange faster and allowing many different users to download the same website at the same time. If each website was sent as a single big chunk, only one user could download it at a time, which obviously would make the web very inefficient and not much fun to use.
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