Monitor System Performance with vmstat and iostat
Combined vmstat and iostat view: CPU/memory usage, process/context switch rates, I/O throughput and latency, device queue lengths, per-disk activity, and bottleneck signs overview.
Linux & System Administration
How to Use rsync for Incremental Backups
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Managing Groups and Permissions in Ubuntu and CentOS
Diagram of group and permission management on Ubuntu and CentOS: file ownership, chmod/chown, chgrp, usermod, groupadd, sudoers.d, ACLs, shared folders, role-based access controls.
How to Add and Delete Users from the Command Line
Terminal showing commands to add and delete Linux users: useradd, deluser, userdel, passwd, sudo examples, sample output and notes on home creation and group setup with sudo tips..
Troubleshooting Common Network Issues in Linux
Photoreal cinematic workspace: engineer gestures at holographic network map above desk, floating translucent screens with abstract gauges, unplugged Ethernet beside a server rack.
How to Use grep, sed, and awk for Text Processing
Illustration of a programming guide showing a terminal with grep sed and awk commands, highlighting pattern matching matching stream editing, text transformation, and commandline efficiency.
Setting Static IP Addresses in Linux (Step by Step)
Step-by-step guide to set a static IP on Linux: edit network files, apply changes, restart networking, and verify connectivity with ping and ip addr show to confirm address status.
How to Mount External Drives and Partitions in Linux
Diagram showing mounting external drives and partitions in Linux: USB drive, hard disk, mount point folders terminal commands (mount, lsblk, blkid, /etc/fstab) and permission note.
Linux Commands for Process Management (ps, top, kill)
Illustration showing Linux process management: terminal displaying ps output and top monitor, arrows to a kill command terminating a process, icons for CPU, memory, PID. Live view.
How to Restart Network Services in Linux
Illustration: restart Linux network services — open terminal and run sudo systemctl restart NetworkManager or sudo systemctl restart networking; verify with systemctl status ping.
Linux Log Files: Where to Find and How to Read Them
andLinux log files: locate syslog and app logs in /var/log and ~/.andlinux; open with tail, less or cat; filter with grep; check timestamps and permissions for troubleshooting. v1.
How to Change File Permissions with chmod in Linux
Photoreal 3D workspace with laptop showing a stylized terminal of glowing lines and bars; 3 floating file icons linked to owner/group/others silhouettes with lock/slider metaphors.