Use a message like “Invalid Input” instead. It tells the hacker that the name supplied was valid and reduces the amount of work the hacker must perform to gain access to the system. Keep error messages generic: Error messages such as “Password Invalid” provide too much information. Using a specially configured library like dotenv makes it possible to load and store environment variables in a secure manner. Keep secrets secret: Storing sensitive information like database connection strings and API keys in code is a bad idea. Validate user inputs: Node.JS is vulnerable to injection-based attacks, so it’s essential to verify that the user is sending data, and not an executable script. In fact, NPM comes with a wealth of commands. Set package access levels: One of the reasons to install a package manager like NPM is to control who can access packages and how they do so. Basically, the reverse proxy receives the user request, vets it to ensure the request is valid, and only then passes it to the Node.JS application. Use a reverse proxy: A reverse proxy is a specialized kind of web server that makes it possible to do things like limit the number of requests a Node.JS application can receive. The best practice is to use a tool such as Okta or OAuth for authentication. Use strong authentication: The first line of defense for your application is to ensure that the user is not a hacker. Instead, run Node.JS with only the rights needed for the specific application in question. Running code as the root user means the hacker has a valuable resource to break everything else down. This list provides basic steps you can use to make your instance of Node.JS more secure:ĭo not run Node.JS as the root user: Assume that a hacker gains access to your system. Installing Node.JS without following best practices is an open invitation to hackers. Node.JS provides a powerful scripting engine that could be misused by others. You can find the procedure for working with NVM here. This is so it can test scripts using multiple Node.JS versions. The Node Version Manager supports multiple versions of Node.JS on a single system. So, don’t hesitate to open your terminal and start typing away!įor more information on Linux commands, you can refer to the Linux Command Line Guide.The output should display version 9.5.1 or above. Remember, practice is key when it comes to mastering Linux commands. Understanding this command and how to use it effectively can greatly enhance your Linux system administration skills. It combines the power of ps, grep, and the pipe symbol to provide a detailed overview of specific processes. In conclusion, the ps -ef | grep processname command is an essential tool for managing and monitoring processes in Linux. For example, if you want to check if a service like Apache is running, you can use the command ps -ef | grep apache. This command is particularly useful when you’re dealing with a large number of processes and need to find a specific one quickly. This output is then passed to the grep command, which searches for and displays lines containing the processname. So, when you run ps -ef | grep processname, the ps -ef command generates a detailed list of all processes. When you replace processname with the actual name of the process, grep will filter out all lines that contain that process name. The processname is the name of the process you’re looking for. In the context of ps -ef | grep processname, grep is used to search the output of ps -ef for a specific process name. Grep is a command-line utility used to search text or output based on specified patterns. In this case, it sends the output of the ps -ef command to the grep command. It is used to redirect the output of one command to the input of another. The pipe symbol | is a key component of this command. This includes additional details such as the UID, PID, PPID, C, STIME, TTY, TIME, and CMD. The -f option instructs ps to display full format listing. The -e option tells ps to display all processes, not just those associated with the current user. The -ef option is used in conjunction with the ps command. It provides information such as the process ID (PID), the time the process has been running, the command that started the process, and more. The ps command is used in Linux to list the currently running processes.
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