UN306

Troubleshooting and problem-solving for Linux

Know how to resolve your Linux issues.

86%

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
    course
SUMMARY
DETAILS

Objectives

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).

Prerequisite

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

Content

  • 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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