Linux Admin Training (RHCSA_v9) - Oct 2024
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Session 1 - Introduction of Linux |Operating System |CPU/RAM/Hardware|Linux distributor |RHEL9|Install RHEL9|Way to install OS|Bare metal |Virtualization |Cloud computing |Container technology |Hypervisor |Install Oracle VM|Rhel Image|ISO Image |Install RHel in VM |Root account |GUI & CLI & WebUI (120:13)
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Summary - Session 1
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Session 2 - GUI & CLI |Firefox Command |Crtl + c|Which Command |Gedit |Firefox code|Open Source Code |Gnome ScreenShot|foreground |Jobs command |Ping command |RAM File |Ctrl + z|Free command |History Command |Ctrl + l|Ctrl + s|Ctrl + q|Mkdir |Persistent Storage |ls & cd & Cat |Use of touch command (94:10)
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Summary - Session 2
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Session 3 - Terminal |Folder/directory |Storage |Unalias command |Packages management |RPM Format |Install the software |Instruction |rpm command |Erase software |Source|ISO file |Repository |Link Windows to Linux |AppStream & BaseStream |df command |Mount |Install firefox |Yum/Dnf command (108:00)
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Summary - Session 3
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Session 4 - Create User | Switch User | Multi-User | Ctrl+ alt+ function key | Booting | Record Screen | Yum configuration | Repository | write the yum configuration file | File protocol | Install httpd (109:34)
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Summary - Session 4
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5. Text Editor |Vim Editor |Insert mode|Command mode |Vi command |User management |Permissions |Authentication |IAM concept |Create User |useradd command |passwd file |shadow file |Set password |Remove password |User ID |Admin user |General user |System user |Root password (105:11)
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Summary Session 5
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Quiz & QNA (79:23)
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Session 6 - UserAdd command |UID|Password|Shadow file |Crypt |Home Directory |/ Driver |Absolute Path |Etc file|Create User|Skeleton |Hide and unhide folder |Bash rc file (77:37)
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Summary - Session 6
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Session 7 - Home directory |Passwd file|Getent|Ldap concept |Shell|bash shell|Bash command |Interactive and Non-interactive user |No login |Path concept |UID|Authentication |Switch user |Usermod|Shadow file|Recursive directory concept |Remove file |Secure file |Last Command |Log file |Pam concept (85:41)
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Summary - Session 7
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Session 8 - Shadow file |Passwd |Q password|Hashing concept |Count algorithm|Rainbow Table |md5sum|Encryption and decryption|sha512 algorithm|Salt |mkpasswd command|Change password|Epoch time (101:09)
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Summary - Session 8
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Session 9 - Add New User | Password Management File | Set User Password | Modify User Account| Password Expiration | Account Inactivity | Account Expiration | Switch User | PAM (Pluggable Authentication Modules) (96:03)
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Summary - Session 9
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10. Security | File and user Permissions | Acees Control | Read, write, execute ,edit operations | access modes | Discretionary Access | Chmod command | Owner of object | User owner, group owner and others | Creating group | Group password | Creating user with custom group | changing group owner (116:06)
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Summary - Session 10
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10_1. Linux Admin Training ( Basic to Advance ) By Mr. Vimal Daga_GMT20241113-153714 (65:48)
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11. Sticky bit |SGID|SUID |W permission |Chmod command |t power |Change permission |Program file |Process |root power |Change password |Chown command |Escalation concept |Privilege Escalation|w & r & x |Binary code |Machine code |Linker |Loader |Umask (121:08)
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Summary Session 11
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Session 12 - File Permissions | chmod Command | chown Command | umask Command | Symbolic and Numeric Modes | Default Permissions | Change Ownership | Modify File Access | Check Effective Permissions | Understand umask Values (102:50)
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Summary session 12
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12_1. Linux Training revision Session on 19th November_GMT20241119-151645 (74:28)
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Session 13 - Security | Logging | Useradd | Sudoers | Commands | Processes | ID | Manual | Group | Visudo (117:49)
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Summary - Session 13
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Session 14 - Discretionary Access Control (DAC) | Mandatory Access Control (MAC) | Access Control List (ACL) | r-x | r-- | rwx | setfacl | getfacl (76:40)
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Summary - Session 14
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Session 15 - Cat Command | Date Command | Shell | Output Redirection | tty | echo | Piping | STDERR | STP output | espeak-ng (85:54)
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Summary Session 15
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Session 16 - grep | cat | ls | vim | tar | file manipulation | text processing | netstat | awk | sed (102:44)
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Session 17 - Networking | IP addresses | Network cards | Connectivity | Protocols | Subnetting | Addressing | Configuration (101:54)
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Summary Session 17
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17_1. Linux Revision Session_GMT20241217-152142_Recording_1920x1200 (84:39)
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Session 18 - Public vs Private IP Addresses | Routing Tables | Network Connectivity | Network Packets | Netting | Padding | CIDR | (171:19)
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Summary Session 18
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Session 19 - SDN | Routers | IP Addresses | Docker Networks | Container Isolation | OSI Model | Sessions | Bridging | D-Netting | (176:44)
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Summary Session 19
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Session 20 - iptables | Masquerading | DNAT | Services | Ports | PAT | Docker | EXPOSE | Bridge Network | Host Network (148:19)
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Summary Session 20
EXTRA Sessions
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Basic Concepts of Partition (100:24)
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Create a Partition (100:08)
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Partition | Format | Mount (94:24)
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LVM | Extend the LV (103:24)
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LVM | Reduce LV (79:12)
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FSTAB | Swap Space (72:08)
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NAS | NFS | Persistent Mount | NTP Servers and Clients (117:24)
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Logs | Metrics | Importance of Logs and Metrics (110:34)
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NAS | NFS | Autofs (79:21)
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Stratis | VDO | Crontab (44:02)
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SELinux Session 1 (116:19)
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SELinux Session 2 (98:12)
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SElinux Session 3 (57:59)
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Podman Session 1 (184:09)
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Podman Session 2 (155:06)
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Scope | Users | Cgroups - Part 1 (15:25)
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Users Cgroups - Part 2 (26:55)
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Systemd | Cgroup (72:30)
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CPU Scheduling / Hardware Controlling (110:28)
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TestDisk Tool For File & Partition Recorvery (20:31)
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Cockpit Graphic Tool (From RedHat) (17:55)
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TCPDump ( Tracking Packets) (3:37)
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Recap (2:36)
Important Links
Linux Interview Question-sets
Docker Session By the World Record Holder Mr. Vimal Daga
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Session 1 - Introduction Docker | Containers | Images | Dockerfile | Compose | Orchestration | Performance | Agile | Installation Docker in Rhel 9 | Portability (113:57)
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Summary - Session 1
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Session 2 - Containers | Scalability | Orchestration | Virtualization | Isolation | Reproducibility | Automation | Deployment | Integration (118:24)
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Summary - Session 2
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Session 3 - Docker and Container | Python Application Installation on Linux | Dockerfile | Workspace Setup | File Copying Process | Automating Commands | Docker Usage | Custom Images (119:47)
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Summary Session 3
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Session 4 - Docker File Creation | Exploring Containers | Docker Image Creation | Docker | Flask | Environment Variables | Docker CMD | ENTRYPOINT | Command Line Input | Docker Entry Points | Containers | (145:53)
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Summary Session 4
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Session 5 - Launching Docker Containers and Images | Modern Web Applications | Docker Setup | Launching MySQL Container and Security | Containerizing Python Flask App With DB | Creating Docker Image and App | Creating Docker Container for Flask App | Database System | Team Roles | (122:09)
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Summary Session 5
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Session 6 - Network Connectivity | IPs | NICs | Public/Private IPs | NAT | Routing Tables | Network Types | ifconfig | IPv4 | Netmask | Network Names | Ping | DNS Resolution | Default Routes | Static/Dynamic Config | Docker Networking | Security | IP Ranges | Prefix Length (171:19)
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Summary Session 6
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Session 7 - Docker Networking | Switches | IP Addressing | DHCP | Subnets | Routers | Gateways | OSI Model | MAC Addresses | Bridge Networks | IPAM | Network Drivers | NAT | IP Masquerading | Public/Private IPs | Containers | Isolation | Packet Routing | SDN | Layer 2/3 Bridges (148:19)
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Summary Session 7
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8. Docker Session By the World Record Holder Mr. Vimal Daga_GMT20250109-153427 (87:04)
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Summary Session 8
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Session 9 - Docker Storage: Persistence | Ephemeral storage | Volume mounting | Host directories | Read-only volumes | Database persistence | Volume command | Volume drivers | Local driver | Volume creation | Inspection | Mountpoints | Multi-container setup | Persistence | Fault tolerance (115:02)
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Summary Session 9
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Session 10 - Dockerfile | Custom Images | Image Size | Containers | RAM | Multi-stage Builds | Base Image | Security | Minimal Images | Java | Maven | Distroless | JDK | Build vs Runtime | Git Clone | COPY --from | Port Mapping | Small Image | Execution (136:06)
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Summary Session 10
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Session 11 - Optimization | Reducing Image Size | Custom Images | Efficient Builds | Multi-Stage Builds | Lightweight Base Images | Minimizing Layers | Optimizing Dependencies | Caching & Layer Reuse | .dockerignore | Security Best Practices | Performance | Testing & Debugging Docker Builds (126:11)
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11_1. Docker Revision Session _GMT20250122-160432 (72:35)
Docker Interview Question-sets
