Introduction and Course Overview
Troubleshooting Best Practices
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Welcome to Troubleshooting Best Practice (2:37)
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Follow Policies and Standards (3:38)
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Documentation Or Ticketing Process (5:21)
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Patience To Work with the Users Group (6:30)
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Get Online Help (4:39)
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Understanding the Issue Before Making a Decision (2:36)
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Involve Vendors if Needed (3:15)
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Log Monitor (3:21)
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Be Honest and Ask Questions (3:18)
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Slides
Lab Setup
Conceptual Troubleshooting
System Access Troubleshooting
FileSystem Troubleshooting
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Welcome to Filesystem Troubleshooting (0:09)
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Cannot CD Into a Directory (18:53)
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Cannot Open a File Or Run a Script (10:19)
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Having Trouble Finding Files and Directories (10:28)
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Cannot Create Links (18:22)
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Cannot Write to a File (12:21)
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Cannot Delete, Copy, Rename or Move a File (17:56)
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Cannot Change File Permissions Ownership (15:01)
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Disk Space Full (22:21)
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Add Disk and Create Standard Partition (12:19)
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Add Disk and Create LVM Partition (12:26)
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Extend Disk with LVM (14:10)
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How to Delete Old Files (7:27)
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Script to Delete Old Files (10:52)
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Filesystem Corruption - UPDATED (20:30)
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fstab Corruption (16:56)
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Handouts
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Slides
System Administration Troubleshooting
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Welcome to System Administration Troubleshooting (0:09)
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Running Out of Memory (32:14)
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Add Swap Space (13:00)
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System Rebooted Or Process Restarted (13:10)
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Unable to get an IP Address (19:08)
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IP Address Assigned but not Reachable (20:37)
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Having Trouble Using vi Editor (9:53)
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Cannot Run Certain Commands (14:59)
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Cannot Change Password (13:16)
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User Has No Home Directory (13:16)
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How to Change Every Instance of a Word in a File (5:17)
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How to Use sed Command (6:30)
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How to Kill a Process, User or Terminal (9:55)
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Recover Root Password (5:26)
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sosreport (6:34)
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List of Users Logged in by Date (15:30)
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System is Running Slow (33:54)
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Rollback Updates and Patches (14:22)
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Script to Delete Old Files (10:52)
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Slides
System Recovery
Additional Resources
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Welcome to Addtinal Resources (0:09)
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Introduction to File System (5:14)
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File Ownership Commands (11:35)
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Files and Directory Permissions (12:57)
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System Log Monitoring (11:08)
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Hard and Soft Link (12:28)
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curl and ping (9:56)
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Programs and Service Management (17:35)
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Processes and Jobs (19:39)
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New network command (3:52)
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Redhat Installation - optional (7:45)
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Difference Between Linux 5, 6 and 7 (14:45)
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Absolute and Relative Paths (5:03)
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Wildcards (10:02)
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Combining and Splitting Files (6:46)
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File maintenance Commands (11:44)
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Filter-Text Processor Commands (13:24)
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Environment Variable (13:35)
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Monitor Users (7:07)
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sed Command (21:00)
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System Monitoring Commands (9:09)
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Advance Package Management (15:01)
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File Transfer Commands (10:25)
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Securing Linux Machine - OS Hardening (24:26)
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File System Check (16:43)
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System Backup (14:04)
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NAS Device Setup for Filesystem Sharing (9:58)
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Congratulations All (0:08)
