Linux Troubleshooting Training in Coconut Creek
 
                    Enroll in or hire us to teach our Linux Troubleshooting class in Coconut Creek,  Florida 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.  
                    
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                	 We offer private customized training for groups of 3 or more attendees.
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| Course Description | ||
| The GL314 is designed to give Linux administrators experience with both common and uncommon system problems. The course is based on the idea that the best way to learn troubleshooting is to perform troubleshooting. Approximately 25% of class time is spent on lecture, leaving 75% for intensive lab content. Class starts with a discussion of effective troubleshooting technique. Tools and topics are gradually introduced over the course of the week. Students practice applying these tools and techniques in self-paced labs. Students can choose from over 120 scenarios organized by topic and difficulty. Because each scenarios is independent of the others, students can choose scenarios according to their interests and experience. Each scenario is designed to help students develop deeper understanding while exploring the problem. All scenarios includes optional hints designed to reflect a realistic troubleshooting process while only gradually revealing the solution. Students find the flexibility and challenge of this course very rewarding. 
                        Course Length: 5 Days Course Tuition: $2290 (US) | ||
| Prerequisites | |
| This course is designed for intermediate to advanced users. | |
| Course Outline | 
| 
	TROUBLESHOOTING METHODOLOGY 
	The Troubleshooting Mindset 
	Evaluating Possible Solutions 
	Identifying and Implementing Change 
	Define and Follow Policies 
	Working with Others 
	Finding Documentation 
	Finding Help Online 
	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 
	ss/netstat and rpcinfo 
	nmap 
	Netcat 
	tcpdump and wireshark 
	LAB TASKS 
	Determining the System's Configuration 
	Troubleshooting with rpm 
	Process Related Tools 
	Network Tools 
	RESCUE ENVIRONMENTS 
	Diagnostic/Recovery 
	Rescue Procedures 
	Recovery: mount & chroot 
	Recovery Examples 
	Recovery: Network Utilities 
	LAB TASKS 
	Recovery Runlevels 
	Recovering Damaged MBR 
	Recover from Deleted Critical Files 
	TOPIC GROUP 1 
	Linux Boot Process 
	System Boot Method Overview 
	systemd System and Service Manager 
	Modifying systemd services 
	Using systemd 
	Booting Linux on PCs 
	Troubleshooting With GRUB 2 
	Boot Process Troubleshooting 
	Troubleshooting: Linux and Init 
	Process Management 
	Process Management Tools 
	Troubleshooting Processes: top 
	Filesystem Concepts 
	Filesystem Troubleshooting 
	Backup Concepts 
	Backup Troubleshooting 
	Backup Troubleshooting 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 1 
	TOPIC GROUP 2 
	Networking Tools 
	Linux Network Interfaces 
	Networking Commands Review 
	NetworkManager 
	Networking Troubleshooting 
	Networking Troubleshooting 
	Virtual Interfaces/IP Aliases 
	Network Teaming 
	Xinetd Concepts 
	Xinetd Troubleshooting 
	TCP Wrappers Concepts 
	TCP Wrappers Concepts 
	TCP Wrappers Troubleshooting 
	Netfilter/iptables Concepts 
	Netfilter/iptables Troubleshooting 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 2 
	TOPIC GROUP 3 
	X11 Concepts 
	X11 Server Operation 
	X11 Troubleshooting 
	Rsyslog Concepts 
	System Logging 
	systemd Journal 
	systemd Journal's journalctl 
	Secure Logging with Journal's Log Sealing 
	Syslog Troubleshooting 
	RPM Concepts 
	RPM Troubleshooting 
	Common Unix Printing System (CUPS) 
	CUPS Troubleshooting 
	CUPS Troubleshooting 
	at & cron 
	at & cron Usage 
	at & cron Troubleshooting 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 3 
	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 
	SELinux Troubleshooting Continued 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 4 
	TOPIC GROUP 5 
	Kernel Modules 
	Kernel Modules Troubleshooting 
	Logical Volume Management 
	Creating Logical Volumes 
	LVM Deployment Issues 
	VG Migration, PV Resizing & Troubeshooting 
	Software RAID Overview 
	RAID Troubleshooting 
	Multipathing Overview 
	SAN Multipathing 
	Multipath Configuration 
	Multipathing Best Practices 
	LDAP and OpenLDAP 
	Troubleshooting OpenLDAP 
	NIS and NIS+ (YP) 
	NIS Troubleshooting Aids 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 5 
	TOPIC GROUP 6 
	DNS Concepts 
	DNS Troubleshooting 
	DNS Troubleshooting 
	Apache Concepts 
	Apache Troubleshooting 
	Apache Troubleshooting 
	FTP Concepts 
	FTP Troubleshooting 
	Squid Concepts 
	Squid Troubleshooting 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 6 
	TOPIC GROUP 7 
	Samba Concepts 
	Samba Troubleshooting 
	Postfix Concepts 
	Postfix Troubleshooting 
	Postfix Troubleshooting 
	IMAP & POP Concepts 
	IMAP/POP Troubleshooting 
	MariaDB 
	MariaDB Troubleshooting 
	LAB TASKS 
	Troubleshooting Problems: Topic Group 7 | 
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Linux Unix Uses & Stats
Linux Unix is Used For:
	            			Desktop
	            			Mainframe  Computers
	            			Mobile Devices
	            			Embedded Devices
	            		| Difficulty | Popularity | Year Created1991/1971 | 
| 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 |   Job Count |   Top Job Locations 
	New York City | 
| 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 | 






