Linux Troubleshooting Training in Newark

Enroll in or hire us to teach our Linux Troubleshooting class in Newark, New Jersey by calling us @303.377.6176. Like all HSG classes, Linux Troubleshooting may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes
Provided there are enough attendees, Linux Troubleshooting may be taught at one of our local training facilities.

Answers to Popular Questions:

 
Yes, this class can be tailored to meet your specific training needs.
Yes, we provide Linux Unix consulting services.
Yes, group discounts are provided.

Course Description

 
This 5 - day course give s Linux administrators experience with both common and uncommon system problems. The course is based on the idea that the best way to learn troubleshootin g is to perform troubleshooting . Students practice applying tools and techniques in self - p aced labs , and can choose from over 120 scenarios organized by topic and di fficulty. Because each scenario is independent of the others, students can choose scenarios according to their interests and experience. Each scenario is designed to help stud ents develop deeper understanding while exploring the problem. All scenarios include optional hints designed to reflect a realistic troubleshooting process while only gradually revealing the solution. Students will find the flexibility and challenge of this co urse very rewarding
Course Length: 5 Days
Course Tuition: $2090 (US)

Prerequisites

Experienced Linux systems administrators .

Course Outline

 

1. Trouble Shooting Methodology
The Troubleshooting Mindset
Evaluating Possible Solutions
Identifying and Implementing Change
Define and Follow Policies
Working with Others
Finding Documentation
Finding Help Online

2. Troubleshooting Tools
Common Troubleshooting Tools
RPM Queries
RPM Verification
SRPM and spec Files
Hardware Discovery Tools
Configuring New Hardware with hwinfo
strace and ltrace
lsof and fuser
ipcs and ipcrm
iostat, mpstat, and vmstat
Using hdparm to Measure
Troubleshooting with the ip command
Name Resolution
netstat and rpcinfonmap
Netcat
tcpdump and wireshar

3. Rescue Environments
Diagnostic/Recovery Runlevels
Rescue Procedures
Recovery: mount & chroot
Recovery: Network Utilitiek

4. Topic Group 1
Linux Boot Process
Booting Linux on PCs
Troubleshooting With GRUB
Boot Process Troubleshooting
Troubleshooting: Linux and Init
Process Management
Process Management Tools
Troubleshooting Processes: top
Filesystem Concepts
Filesystem Troubleshooting
Backup Concepts
Backup Troubleshooting

5. Topic Group 2
Networking Tools
Networking Commands Review
Networking Troubleshooting
Virtual Interfaces/IP Aliases
Xinetd Concepts
Xinetd Troubleshooting
TCP Wrappers Concepts
TCP Wrappers Troubleshooting
Netfilter/iptables Concepts
Netfilter/iptables
Troubleshooting

6. Topic Group 3
X11 Concepts
X11 Server Operation
X11 Troubleshooting
Syslog Concepts
syslog-ng Concepts
Syslog Troubleshooting
RPM Concepts
RPM Troubleshooting
Common UNIX Printing System (CUPS)
CUPS Troubleshooting
at & cron
at & cron Usage
at & cron Troubleshooting

7. Topic Group 4
Users and Groups
Users and Groups Troubleshooting
PAM Concepts
PAM Troubleshooting
Filesystem Quotas
Quotas Troubleshooting
File Access Control Lists
FACL Troubleshooting
SELinux Concepts
SELinux Troubleshooting

8. Topic Group 5
Kernel Modules
Kernel Modules Troubleshooting
Logical Volume Management
Creating Logical Volumes
LVM Deployment Issues
VG Migration, PV Resizing & Troubleshooting
Software RAID Overview
RAID Troubleshooting
LDAP and OpenLDAP
Troubleshooting OpenLDAP

9. Topic Group 6
DNS Concepts
DNS Troubleshooting
Apache Concepts
Apache Troubleshooting
FTP Concepts
FTP Troubleshooting
Squid Concepts
Squid Troubleshooting

10. Topic Group 7
Samba Concepts
Samba Troubleshooting
Postfix Concepts
Postfix Troubleshooting
Sendmail Concepts
Sendmail Troubleshooting
IMAP & POP Concepts
IMAP/POP Troubleshooting

 

Course Directory [training on all levels]

Upcoming Classes
Gain insight and ideas from students with different perspectives and experiences.

Linux Unix Uses & Stats

Linux Unix is Used For:
Desktop Mainframe Computers Mobile Devices Embedded Devices
Difficulty
Popularity
Year Created
1991/1971
Pros
Performance:
Linux supports many efficient tools and operates them seamlessly. Because it's architecture is lightweight it runs faster than both Windows 8.1 and 10. 
 
Security:
Because Linux is an open-source software,  anyone can contribute code to help enhance the users’ experience i.e., adding features, fixing bugs, reducing security risks, and more.
 
 
Software Development:
The terminal in Linux is a *wild card*. You can do almost anything with it. This includes software installation, application and server configurations, file system management, and etc.
 
Large-scale:
Open-source projects benefit from having an attentive community. As a result, Linux is more secure than Windows. Instead of installing anti viruses to clean malware, you just have to stick to the recommended repositories. 
 
Efficient: 
Developers have the convenience of running servers, training machine learning models, accessing remote machines, and compiling and running scripts from the same terminal window. 
 
Free: 
Linux is free (you can put it on as many systems as you like) and you can change it to suit your needs.
Cons
Learning Curve: 
Linux is not for everyone, there is a learning curve in switching to Ubuntu. To actually learn Linux efficiently would take a user one to several years.
 
No Tech Support:
Unlike Windows, there isn’t a dedicated tech support, so getting help for things is up to you. 
 
Designer Compatabilty:
Linux is not as user friendly as Windows or as ‘straight out of the box design’ As an example for design choices, Adobe hasn’t released any of its products to Linux users. So it’s impossible to run them directly. The Ubuntu alternative is a free software called GIMP. 
 
Gaming Capabilities: 
Most games aren’t available in Linux. But that’s not to say you can’t make it happen, it's just not as easy.   
Linux Unix Job Market
Average Salary
$85k-$105k
Job Count
n/a
Top Job Locations

New York City
Boston
San Francisco 

Complimentary Skills to have along with Linux Unix
The following are types of jobs that may require Linux skills.  The top 15 job titles on Dice.com that mention Linux in their postings are:
- DevOps Engineer
- Software Engineer
- Java Developer
- Systems Engineer
- Systems Administrator
- Senior Software Engineer
- Network Engineer
- Python Developer
- Linux Systems Administrator
- Software Developer
- System Administrator
- Linux Administrator
- Linux Engineer
- Senior Java Developer
- C++ Developer

Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.