Administration

Table of Contents

28. Access Control Lists in Linux

28.1. Advantages of ACLs

28.2. Definitions

28.3. Handling ACLs

28.4. ACL Support in Applications

29. System Monitoring Utilities

29.1. List of Open Files: lsof

29.2. User Accessing Files: fuser

29.3. File Properties: stat

29.4. Processes: top

29.5. Process List: ps

29.6. Process Tree: pstree

29.7. Who Is Doing What: w

29.8. Memory Usage: free

29.9. Kernel Ring Buffer: dmesg

29.10. File Systems and Their Usage: mount, df, and du

29.11. The /proc File System

29.12. procinfo

29.13. PCI Resources: lspci

29.14. System Calls of a Program Run: strace

29.15. Library Calls of a Program Run: ltrace

29.16. Specifying the Required Library: ldd

29.17. Additional Information about ELF Binaries

29.18. Interprocess Communication: ipcs

29.19. Time Measurement with time