Process Management
Monitoring and managing processes is crucial for system administration. These commands provide insights into running processes, their resource usage, and network connections. Tools like ps
, top
, and lsof
help identify and troubleshoot issues related to system performance, resource consumption, and potential security threats.
Command |
Description |
Example |
---|---|---|
ps |
Display information about running processes. |
ps aux
Lists all running processes on the system. |
top |
Display dynamic real-time information about running processes. |
top
Displays a dynamic, real-time view of system processes and resource usage. |
netstat |
Display network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. |
netstat -tuln
Lists all listening TCP and UDP sockets along with their associated processes.ss |
ss |
A tool to investigate sockets. |
ss -tuln
Similar to netstat, lists active sockets and related information. |
lsof |
List open files and the processes that opened them. |
lsof /path/to/file
Displays processes that have opened the specified file. |
Linux Security Command Cheat Sheet
Maintaining a secure and hardened Linux system is crucial in today’s threat-laden digital landscape. This comprehensive Linux Security Command Cheat Sheet serves as an invaluable resource for system administrators and security professionals, providing a concise reference to essential commands spanning various security domains. From user and group management to privilege escalation, file system security, process monitoring, firewall configuration, and security scanning, this guide covers a wide array of tools and utilities tailored for fortifying Linux environments.
Whether you’re managing access controls, auditing system events, securing network communications, or proactively detecting and mitigating potential threats, this cheat sheet equips you with the necessary knowledge to navigate through the vast arsenal of Linux security commands. With practical examples and clear descriptions, this resource empowers you to effectively secure, harden, and maintain the integrity of your Linux systems, ensuring robust protection against evolving cyber threats.
Linux Security Command Cheat Sheet
- User and Group Management
- Privilege Management
- File and Directory Management
- Process Management
- Firewall and Security
- Networking and Security Tools
- Security Scanners