by Paul Olushile | Publisher: Packt Publishing | Release Date: September 2018 | ISBN: 9781789341416

Quick and simple troubleshooting solutions to deal with all the problems you'll encounter as a Linux administrator!About This VideoGain administrative superuser power with sudo to multitask and troubleshoot all administration tasksDevelop your own methods to troubleshoot services and processes and monitor the system to identify critical machine issuesConfigure SSH servers for secured connections via remote computers and set up a Network File System to better manage your Linux filesIn DetailTroubleshooting is an important skill used in many Information Technology (IT) roles including help desks, system administration, networking, and security. This course will help you learn practical and proven techniques to deal with many tasks you'll encounter when administering a Linux server.In this troubleshooting course, you will master the full power of the superuser; you'll use sudo to fix user management files and passwords, and schedule tasks with cron before troubleshooting.You will also troubleshoot and resolve wireless issues, identify machine issues with different troubleshooting processes, configure an SSH server for remote connections, and set up a Network File System to connect to your client.

1. Chapter 1 : Super-Users (The Sudoers)
   • The Course Overview 00:02:35
   • The Power of sudo 00:09:04
   • Cultivating Admin Tasks with Root 00:06:05
   • Installing Programs with sudo Privileges 00:04:50
   • Handling the sudoers File 00:05:55
   • Understanding SU Capabilities 00:06:51
2. Chapter 2 : Working with User Management
   • Handling the Users Management Files 00:07:30
   • Getting the Users Password in the /etc/shadow File 00:05:14
   • Protect and Create User Passwords 00:06:46
   • Create Secured Groups with Passwords 00:04:35
   • Understanding Password Age Policies 00:03:21
3. Chapter 3 : Scheduling Tasks
   • User Cron Tabs (User Table) 00:03:36
   • Editing Cron Tabs 00:03:40
   • Scheduling Cron Tabs as Administrator 00:03:24
   • Checking Debian Cron in Extensions Files 00:06:27
   • Automating Tasks with Cron Tabs 00:05:54
4. Chapter 4 : Resolving Wireless Network Issues
   • Resolve Network Connections with Systemctl 00:05:51
   • Using nm-tool to Output Information Network Manager 00:07:06
   • Listing Hardware Details with lshw 00:05:12
   • sudo Privileges to Check PCI Bus Infos – lspci, lsusb, lsmod 00:05:40
   • Troubleshooting with Ping 00:03:00
   • Checking for Device Recognition and Wireless Network Files 00:02:24
5. Chapter 5 : Monitoring and Troubleshooting Processes
   • Installing Troubleshooting Tools – Htop, Glances 00:03:23
   • Troubleshooting with Glances 00:08:33
   • Troubleshooting with Htop 00:05:50
   • Fixing Common Linux Processes Problems 00:03:10
   • Process Management with ps and top 00:06:33
6. Chapter 6 : Working with Secure Shell
   • SSH Installations 00:03:22
   • Connecting to a Server 00:02:36
   • Working with a Server Remotely 00:04:58
   • Creating SSH Cryptographic Keys 00:04:54
   • Checking Firewall Status 00:02:07
7. Chapter 7 : Configuring Network File System (NFS)
   • Network File System (NFS) 00:02:35
   • NFS Server Installations 00:02:33
   • Configuring an NFS Client 00:06:04
   • Troubleshooting NFS 00:02:48