#linux
All articles tagged #linux — practical guides from production experience.
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66 posts tagged #linux · page 3 of 8
Linux Kill Process by Port: Step-by-Step Guide
Kill a process by port number on Linux — using fuser, lsof, ss + kill, and pkill. Step-by-step with real examples for each method.
How to Find Process by Name in Linux: pgrep, ps, pidof
Find a Linux process by name using pgrep, ps, pidof, and top — with real examples for scripting, killing, and monitoring processes in production.
Linux Find Files Older Than X Days: find -mtime Examples
Find files older than X days in Linux using find -mtime — with real examples for log cleanup, archiving old files, and safe deletion workflows.
Linux Find File by Name and Size: Real Examples
Use Linux find command to locate files by name pattern, size, date, and permissions — with real production examples and combined search techniques.
Linux Check Running Services with systemctl: Real Examples
Check running services in Linux using systemctl — list active units, find failed services, check service status, and filter by type with real command examples.
Linux Check Open Connections: ss, netstat, lsof Examples
Check open network connections in Linux using ss, netstat, and lsof — see established connections, connection counts by state, and find which process owns each connection.
Linux Check Memory Usage: free vs top Explained
Check memory usage in Linux using free, top, and /proc/meminfo — understand available vs free, detect memory pressure, and identify memory-hungry processes.
Linux Check Listening Ports with ss: Complete Guide
Check listening ports in Linux with ss — see TCP and UDP listeners, find which process owns each port, filter by interface binding, and detect unexpected services.
Linux Check Last Login Users: last, lastlog, who
Check last login history in Linux using last, lastlog, and who — find recent logins, failed attempts, and suspicious access patterns for security audits.