Troubleshooting and problem-solving for Linux

Know how to resolve your Linux issues.


overall satisfaction for this course

?Average calculated from scores obtained from 66 participants who took this course.
  • Duration 3 days
  • Regular fee 1 375
  • Preferential fee 1 165?
  • Locations
  • Laboratory


To provide the knowledge and skills required to quickly diagnose and resolve problems that Linux system administrators commonly encounter through practical exercises based on real-world cases where the participant diagnoses and resolves problems.

Targeted audience

Network specialists (other than security specialists and DBAs).


Practical experience with UNIX administration (Course UN201).

Customer Testimonials

Very well-structured course. It gets straight to the point. Content quality is exceptional.

Jean-François H. / Technicien général maintenance, Société Radio-Canada


  • Introduction to resolving Linux problems.
  • Basic problem resolution tools available on the Internet
  • What to do when nothing works; recovery tools (rescue mode, the operating system bootloader, backups and restores), best recovery practices and examples
  • Resolving start-up problems, practical tips for situations where the server doesn't start
  • Resolving problems using disks, file systems, LVM and RAID software, users, groups, PAM, quotas, Access Control Lists
  • Handling X Window server failures, video, keyboard and screen problems, and problems with laptops
  • Resolving problems with: installations and updates (RPM, apt), processes (ps, top. strace, ltrace, lsof, etc.), the kernel (lsmod, modprobe, etc.), networks (ifconfig, ip, route, arp, netstat, nmap, wireshark)
  • Resolving problems with the scheduler (cron, at) and the print manager (CUPS)
  • Resolving NFS and SAMBA problems

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Only private sessions of this course are currently available.

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