How to Run Code on Online or Offline Emulator Differences
The difference between using an online emulator and to an offline emulator is that you are risk-free compared to installing the software. Most of the people want to run their programming staff on an online emulator, whether it is python react js code or laravel with PHP. But the limitation of the online emulators is installing modules. When you run your code on a VPS, there is an issue of security or cyberattack that makes your code available for the hacker. There is many measures to do with this stuff to avoid having access to your online folder (for emulators like Python or C++ or C# emulators) or access to your VPS:
- Do not use a shared wifi network: The provider of wifi could access all the sites you are accessing on your device, as there are a lot of control programs to see what people are browsing. Like, navigating from a coffee or a restaurant or beach bar.
- Use the lock IP option: This functionality is to remove any unwanted access if you are accessing from a static IP. The price of static IP is a little higher for the internet provider; however, you guarantee that the IP address isn't changed for each router access or restart. Even the final hacker is accessing your folder online; he couldn't do anything as his IP is not whitelisted from you.
- Use of a two-factor authenticator: If it is possible so, why not? A hacker may revoke access to your email or your token but, unfortunately, couldn't access the google authenticator app on your phone unless he is stealing your phone, which is practically so hard.
- Do not let your email open or skype or WhatsApp: They work as keyloggers as hackers could use them to take complete control of your PC while coding or making updates or upgrades.
Therefore there is little difference between installing modules offline or online. You need special authorization from your hoster called YAML access file or YAML installation in online emulators. Installing this on an online VPS, you could use installation instructions for your terminal. By security, installing some specific modules is restricted for the security of the terminal as they need some particular configuration. At the same time, the hoster of the online emulator authorizes some modules, like the case of Java Kotlin or the case of Python modules. Then, by discussing, he may grant access if there is a particular need, and this could be a paid service or paying an extra fee if there is some repositories that aren't so trusted and could harm their server, so they authorize these features after their full knowledge of what you are going to program with them. For example, running a Redis server on a java kotlin project and calling apk, or using the docker function in a hazardous python program. But if you are running software on your local machine, there are no similar restrictions.
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