#linux

To monitor and optimize system performance on a Linux server, I typically use commands like top and htop for real-time process monitoring, vmstat for checking memory and CPU statistics, and…

I would use logrotate, a built-in utility for managing log files in Linux. It allows you to specify how often logs should be rotated, how many older files to keep,…

The ‘grep’ command is used in Linux to search for specific patterns within files. For example, running ‘grep keyword filename.txt’ will return all lines in filename.txt that contain ‘keyword’. This…

You can use the curl command to send a GET request to a REST API. For example, ‘curl https://api.example.com/data’ retrieves data from the specified endpoint.

I would use rsync to create incremental backups, utilizing its ability to only copy changed files. To ensure data integrity, I would implement checksum verification after each backup and automate…

I would use tools like top, htop, or glances to monitor CPU and memory usage. For more persistent monitoring, I would set up a logging solution with tools like Prometheus…

You can use tools like curl or wget on the command line to interact with RESTful APIs. Curl is particularly versatile as it can handle different request methods and send…

I would utilize tools like rsync for incremental backups and cron jobs for scheduling. My architecture choices would consider data consistency, recovery time objectives (RTO), and recovery point objectives (RPO).…

You can use the ‘top’ command to view real-time CPU usage by processes, and additionally, ‘htop’ provides a more user-friendly interface. Another option is to use ‘ps’ with specific flags…

You can manage file permissions securely by using the chmod command to set the appropriate access levels and chown to change the file owner. It’s important to limit access to…

I would create a command-line tool that uses a modular structure for handling different service commands, incorporates robust error handling, and provides clear user feedback. It would utilize shell scripting…

You can use SCP or SFTP for securely copying files between servers. It’s important to ensure that SSH keys are set up correctly for authentication and to verify server fingerprints…