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Welcome to Icyb3r – Your Hub for IT, Databases, Linux, Cybersecurity, and Enterprise Technologies.

On this channel, you'll find practical tutorials, hands-on labs, troubleshooting guides, and real-world demonstrations covering:

✅ SQL Server Administration (DBA)
✅ PostgreSQL & EnterpriseDB (EDB)
✅ Oracle Database Administration
✅ Linux System Administration
✅ Docker, Kubernetes & RKE2
✅ High Availability & Disaster Recovery (HA/DR)
✅ Database Performance Tuning
✅ Cybersecurity & System Hardening
✅ IT Career Development & Certifications

Whether you're a Database Administrator, System Administrator, IT Student, or Technology Enthusiast, Icyb3r provides practical knowledge you can apply in production environments and home labs.

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Icyb3r
Oracle DBA
Database Administrator
Linux Administrator
Windows administrator
SysAdmin
DBA
SQL Server
Security
RAC
AlwaysON AG
oracle
postgres
information technology
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linux
Cyber Security
enterprisedb
vmware
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Stats

Joined March 8, 2012
317,120 total views

Popular videos

Oracle 19c DB [ Single Instance ] Installation on [ Oracle Linux 8 ] [ VMware ]
55:52
Oracle 19c DB [ Single Instance ] Installation on [ Oracle Linux 8 ] [ VMware ]

37,000 views

5y ago

Oracle19c DB [ ASM ] installation on [ Oracle Linux 8.3 ] [ Grid | ASM | UDEV | OEL 8.3 ] [ VMware ]
50:38
Oracle19c DB [ ASM ] installation on [ Oracle Linux 8.3 ] [ Grid | ASM | UDEV | OEL 8.3 ] [ VMware ]

24,000 views

5y ago

Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]
8:35
Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]

19,000 views

4y ago

Manual Lab Setup For OpenVPN Server & Tunnel Two Clients [ Linux & Windows ] To Reach Web Server.
46:01
Manual Lab Setup For OpenVPN Server & Tunnel Two Clients [ Linux & Windows ] To Reach Web Server.

19,000 views

4y ago

Oracle RAC 19c On Oracle Linux 8.5 - Part 1 - Overview & Requirement [ Must Watch before Begin ]
6:46
Oracle RAC 19c On Oracle Linux 8.5 - Part 1 - Overview & Requirement [ Must Watch before Begin ]

17,000 views

4y ago

Chrony NTP Service [ Local Server ] and Client
13:25
Chrony NTP Service [ Local Server ] and Client

16,000 views

5y ago

Oracle 19c Transparent Data Encryption TDE with Wallet
1:12:44
Oracle 19c Transparent Data Encryption TDE with Wallet

11,000 views

5y ago

How to Use VMware Workstation 17 Pro - Tutorial - Features & Tips
37:30
How to Use VMware Workstation 17 Pro - Tutorial - Features & Tips

11,000 views

2y ago

RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide
31:07
RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide

8,900 views

2y ago

Oracle RAC 19c On Oracle Linux 8.5 - Part 2 - VirtualBox Main Components and Setup NAT
5:09
Oracle RAC 19c On Oracle Linux 8.5 - Part 2 - VirtualBox Main Components and Setup NAT

8,200 views

4y ago

Oracle RAC 19c On Oracle Linux 8.5 - Part 3 - Oracle Linux 8.5 Installation On VBox
18:59
Oracle RAC 19c On Oracle Linux 8.5 - Part 3 - Oracle Linux 8.5 Installation On VBox

8,200 views

4y ago

Oracle RAC 19c On Oracle Linux 8.5 - Part 10 - Patch & Setup Grid Infra with ASM Filter Driver AFD
18:11
Oracle RAC 19c On Oracle Linux 8.5 - Part 10 - Patch & Setup Grid Infra with ASM Filter Driver AFD

7,900 views

4y ago

Multiple playlists

Oracle 19c RAC Installation on Linux Step by Step
13 videos
Oracle 19c RAC Installation on Linux Step by Step
SysAdmin
11 videos
SysAdmin
DBAdmin
9 videos
DBAdmin
VMware
2 videos
VMware

Videos

Install SQL Server 2025 Like a Senior DBA | Complete Beginner Guide
20:51
Install SQL Server 2025 Like a Senior DBA | Complete Beginner Guide

289 views

4mo ago

Database Replication Sync, Async & Semi-Sync — Clear & Simple!
12:25
Database Replication Sync, Async & Semi-Sync — Clear & Simple!

850 views

9mo ago

Part9 - PostgreSQL16 High Availability Lab Setup - Setup Barman Backup
34:46
Part9 - PostgreSQL16 High Availability Lab Setup - Setup Barman Backup

2,600 views

1y ago

Part8 - PostgreSQL16 High Availability Lab Setup - Testing PostgreSQL HAproxy Keepalived
19:34
Part8 - PostgreSQL16 High Availability Lab Setup - Testing PostgreSQL HAproxy Keepalived

1,000 views

2y ago

Part7 - PostgreSQL16 High Availability Lab Setup - Setting Up Keepalived
13:26
Part7 - PostgreSQL16 High Availability Lab Setup - Setting Up Keepalived

938 views

2y ago

Part6 - PostgreSQL16 High Availability Lab Setup -Setting Up HAProxy To Load Balance PostgreSQL
16:18
Part6 - PostgreSQL16 High Availability Lab Setup -Setting Up HAProxy To Load Balance PostgreSQL

2,000 views

2y ago

Part5 - PostgreSQL16 High Availability Lab Setup - Replication, Failover & Switchover Scenarios
10:54
Part5 - PostgreSQL16 High Availability Lab Setup - Replication, Failover & Switchover Scenarios

1,900 views

2y ago

Part4 - PostgreSQL16 High Availability Lab Setup - Setting Up RepMGR16
26:28
Part4 - PostgreSQL16 High Availability Lab Setup - Setting Up RepMGR16

2,300 views

2y ago

Part3 - PostgreSQL16 High Availability Lab Setup - Setting Up PostgreSQL16
16:30
Part3 - PostgreSQL16 High Availability Lab Setup - Setting Up PostgreSQL16

1,700 views

2y ago

Part2 - PostgreSQL16 High Availability Lab Setup - Setting Up 3 Oracle Linux 9 Servers on VirtualBox
16:54
Part2 - PostgreSQL16 High Availability Lab Setup - Setting Up 3 Oracle Linux 9 Servers on VirtualBox

2,100 views

2y ago

Part1 - PostgreSQL16 High Availability Lab Setup - Videos Overview & Roadmap
3:51
Part1 - PostgreSQL16 High Availability Lab Setup - Videos Overview & Roadmap

3,900 views

2y ago

RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide
31:07
RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide

8,900 views

2y ago

Shorts

Linux Commands Quick Tip: Using 'grep' Command to search for multiple strings
Linux Commands Quick Tip: Using 'grep' Command to search for multiple strings

1,600 views

Linux Commands Quick Tip: Using 'awk' Command field separator
Linux Commands Quick Tip: Using 'awk' Command field separator

9,900 views

Linux Commands Quick Tip: Using 'cp' Command - Preserve file attributes
Linux Commands Quick Tip: Using 'cp' Command - Preserve file attributes

720 views

Oracle 19c RAC Installation on Linux Step by Step

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 1 - Overview & Requirement [ Must Watch before Begin ]
6:46
Oracle RAC 19c On Oracle Linux 8.5 - Part 1 - Overview & Requirement [ Must Watch before Begin ]

17,000 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 2 - VirtualBox Main Components and Setup NAT
5:09
Oracle RAC 19c On Oracle Linux 8.5 - Part 2 - VirtualBox Main Components and Setup NAT

8,200 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 3 - Oracle Linux 8.5 Installation On VBox
18:59
Oracle RAC 19c On Oracle Linux 8.5 - Part 3 - Oracle Linux 8.5 Installation On VBox

8,200 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 4 - Format Disk and Create /u01 Mount Point
5:33
Oracle RAC 19c On Oracle Linux 8.5 - Part 4 - Format Disk and Create /u01 Mount Point

5,600 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 5 - Oracle Preinstall & Prerequisites Setup
13:48
Oracle RAC 19c On Oracle Linux 8.5 - Part 5 - Oracle Preinstall & Prerequisites Setup

5,200 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 6 - Oracle Cluster Network Overview & Add IPs to HostFile
9:03
Oracle RAC 19c On Oracle Linux 8.5 - Part 6 - Oracle Cluster Network Overview & Add IPs to HostFile

3,800 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 7 - Oracle Linux 8.5 Bind9 DNS Setup
10:51
Oracle RAC 19c On Oracle Linux 8.5 - Part 7 - Oracle Linux 8.5 Bind9 DNS Setup

4,000 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 8 - Clone First Node to create Second Node
7:29
Oracle RAC 19c On Oracle Linux 8.5 - Part 8 - Clone First Node to create Second Node

3,000 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 9 - Create ASM Shared Disks (VSAN)
6:22
Oracle RAC 19c On Oracle Linux 8.5 - Part 9 - Create ASM Shared Disks (VSAN)

4,300 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 10 - Patch & Setup Grid Infra with ASM Filter Driver AFD
18:11
Oracle RAC 19c On Oracle Linux 8.5 - Part 10 - Patch & Setup Grid Infra with ASM Filter Driver AFD

7,900 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 11 - Setup Oracle 19c Cluster Database
15:37
Oracle RAC 19c On Oracle Linux 8.5 - Part 11 - Setup Oracle 19c Cluster Database

3,200 views

4y ago

ICyb3r
Oracle RAC 19c On Oracle Linux 8.5 - Part 12 - Apply p33803476 Patch (19.15) to Cluster Database
8:25
Oracle RAC 19c On Oracle Linux 8.5 - Part 12 - Apply p33803476 Patch (19.15) to Cluster Database

1,800 views

4y ago

DBAdmin

ICyb3r
Oracle19c DB [ ASM ] installation on [ Oracle Linux 8.3 ] [ Grid | ASM | UDEV | OEL 8.3 ] [ VMware ]
50:38
Oracle19c DB [ ASM ] installation on [ Oracle Linux 8.3 ] [ Grid | ASM | UDEV | OEL 8.3 ] [ VMware ]

24,000 views

5y ago

ICyb3r
Oracle 19c DB [ Single Instance ] Installation on [ Oracle Linux 8 ] [ VMware ]
55:52
Oracle 19c DB [ Single Instance ] Installation on [ Oracle Linux 8 ] [ VMware ]

37,000 views

5y ago

ICyb3r
Upgrade Oracle 12c to Enterprise Edition
16:59
Upgrade Oracle 12c to Enterprise Edition

1,300 views

5y ago

ICyb3r
Oracle 19c Transparent Data Encryption TDE with Wallet
1:12:44
Oracle 19c Transparent Data Encryption TDE with Wallet

11,000 views

5y ago

ICyb3r
How to Change Hostname of a Standalone Oracle Restart 19c ( ASM )
32:47
How to Change Hostname of a Standalone Oracle Restart 19c ( ASM )

3,100 views

4y ago

ICyb3r
Oracle 19c Data-Guard (Physical Standby + Broker) [ Oracle 19c Restart + ASM ] [ Oracle Linux 8.3 ]
1:08:15
Oracle 19c Data-Guard (Physical Standby + Broker) [ Oracle 19c Restart + ASM ] [ Oracle Linux 8.3 ]

4,000 views

4y ago

ICyb3r
RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide
31:07
RPM-Based Oracle 19c Database Installation on Oracle Linux 9 - Complete Guide

8,900 views

2y ago

SysAdmin

ICyb3r
Pop!_OS 20.10 Installation with Manual Disk partitioning using [PARTED] UEFI LVM2 EXT4 FAT32
19:04
Pop!_OS 20.10 Installation with Manual Disk partitioning using [PARTED] UEFI LVM2 EXT4 FAT32

5,200 views

5y ago

ICyb3r
Chrony NTP Service [ Local Server ] and Client
13:25
Chrony NTP Service [ Local Server ] and Client

16,000 views

5y ago

ICyb3r
Manual Lab Setup For OpenVPN Server & Tunnel Two Clients [ Linux & Windows ] To Reach Web Server.
46:01
Manual Lab Setup For OpenVPN Server & Tunnel Two Clients [ Linux & Windows ] To Reach Web Server.

19,000 views

4y ago

ICyb3r
Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]
8:35
Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]

19,000 views

4y ago

ICyb3r
Windows Server 2022 Installation and Customization
11:57
Windows Server 2022 Installation and Customization

597 views

4y ago

ICyb3r
Windows Server 2022 - Setup Active Directory Domain Service Role
11:29
Windows Server 2022 - Setup Active Directory Domain Service Role

2,700 views

4y ago

ICyb3r
Install and Configure BIND9 DNS server on Oracle Linux 9 - Step by Step
26:26
Install and Configure BIND9 DNS server on Oracle Linux 9 - Step by Step

4,000 views

3y ago

ICyb3r
Fedora Workstation 39 Installation On VMware Workstation Pro 17.5 [LVM] and DNF Speed UP
11:16
Fedora Workstation 39 Installation On VMware Workstation Pro 17.5 [LVM] and DNF Speed UP

271 views

2y ago

ICyb3r
VMware workstation 17.5 Installation On Fedora 39.
6:59
VMware workstation 17.5 Installation On Fedora 39.

3,700 views

2y ago

ICyb3r
How to Use VMware Workstation 17 Pro - Tutorial - Features & Tips
37:30
How to Use VMware Workstation 17 Pro - Tutorial - Features & Tips

11,000 views

2y ago

ICyb3r
Oracle Linux 9 Installation on VMware Workstation 17.5
9:52
Oracle Linux 9 Installation on VMware Workstation 17.5

1,700 views

2y ago

OS Installation

ICyb3r
Fedora Workstation 39 Installation On VMware Workstation Pro 17.5 [LVM] and DNF Speed UP
11:16
Fedora Workstation 39 Installation On VMware Workstation Pro 17.5 [LVM] and DNF Speed UP

271 views

2y ago

ICyb3r
Windows Server 2022 Installation and Customization
11:57
Windows Server 2022 Installation and Customization

597 views

4y ago

ICyb3r
Pop!_OS 20.10 Installation with Manual Disk partitioning using [PARTED] UEFI LVM2 EXT4 FAT32
19:04
Pop!_OS 20.10 Installation with Manual Disk partitioning using [PARTED] UEFI LVM2 EXT4 FAT32

5,200 views

5y ago

ICyb3r
Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]
8:35
Pop!_OS 22.04 installation with Disk manual partitioning [ LVM2 EXT4 EFI ]

19,000 views

4y ago

ICyb3r
Oracle Linux 9 Installation on VMware Workstation 17.5
9:52
Oracle Linux 9 Installation on VMware Workstation 17.5

1,700 views

2y ago

Linux LVM2

ICyb3r
Linux LVM2 Part - 1 - What Is Linux LVM? [Logical Volume Manager] Theoretical
9:25
Linux LVM2 Part - 1 - What Is Linux LVM? [Logical Volume Manager] Theoretical

1,600 views

4y ago

ICyb3r
Linux LVM2 Part - 2 - Format Disks and Create PV VG and LV
15:44
Linux LVM2 Part - 2 - Format Disks and Create PV VG and LV

1,700 views

4y ago

ICyb3r
Linux LVM2 Part - 3 - Extend VG & Extend LV - Resize Filesystem
14:15
Linux LVM2 Part - 3 - Extend VG & Extend LV - Resize Filesystem

880 views

4y ago

ICyb3r
Linux LVM2 Part - 4 - Shrink Logical Volume (LV) with Ext4 Filesystem
12:54
Linux LVM2 Part - 4 - Shrink Logical Volume (LV) with Ext4 Filesystem

1,100 views

4y ago

ICyb3r
Linux LVM2 Part - 5 - Volume Group (VG) Migration Using PVMOVE
12:19
Linux LVM2 Part - 5 - Volume Group (VG) Migration Using PVMOVE

1,400 views

4y ago

ICyb3r
Linux LVM2 Part - 6 - Remove Physical Volume (PV) Volume Group (VG) Logical Volume (LV)
7:08
Linux LVM2 Part - 6 - Remove Physical Volume (PV) Volume Group (VG) Logical Volume (LV)

992 views

4y ago