Day - 5 | Process Management | Monitoring | Networking | Disk Management | Free Linux Course

Summary

Key Points

• Process management involves viewing, killing, stopping, resuming, prioritizing, and deprioritizing running programs on a Linux system. 8:19
• Processes can be terminated using the `kill` command, with `kill -9` used for forceful termination, and temporarily stopped/resumed using `kill -STOP` and `kill -CONT` respectively. 23:45
• The `renice` command allows administrators to adjust the priority of processes, with lower numbers indicating higher priority. 26:19
• Services are background processes that automatically start upon server boot, unlike regular processes, and are managed using `systemctl` commands like `start`, `stop`, and `list-units`. 32:32
• Monitoring tools like `top`, `htop`, `vmstat`, and `free` are used to observe real-time CPU, memory, and system performance. 47:17
• Networking concepts are crucial and are covered in a separate playlist, including IP addresses, subnets, and the OSI model. 50:56
• Disk space utilization can be checked using `df -h` for file systems and `du -sh` for specific directories, while `lsblk` and `fdisk -l` help in identifying attached storage devices and partitions. 56:48
• The `ps aux` and `ps -ef` commands are used to list running processes, with `ps aux` providing more detailed information like CPU and memory utilization. 59:30
• Adding new storage to a Linux instance involves creating a volume, formatting it (e.g., ext4 or XFS) using `mkfs`, and mounting it to a directory using the `mount` command. 60:45
• The video emphasizes that mastering these fundamental Linux concepts, along with networking and shell scripting, is sufficient for interview preparation and cloud-related roles. 69:38