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Script to check the prerequisites for Exchange Server SE

Script to check the prerequisites for Exchange Server SE in place upgrade

The PowerShell script for upgrading from Exchange 2019 to Exchange Server SE automates a critical pre-upgrade checklist, auditing 13 essential areas to ensure a smooth transition. It checks system prerequisites, including OS compatibility, hardware requirements, and hybrid configurations, providing a detailed report with various statuses for each check, ensuring readiness for the upgrade.

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Veritas Volume Manager

Veritas Volume Manager (VxVM) cheatsheet

VxVM cheatsheet

Veritas Volume Manager (VxVM) enables us to manage physical drives as logical devices. Applications and the operating system see a veritas disk/volume as a physical disc with configurable file systems, databases, and other managed data objects.

For computer and Storage Area Network (SAN) systems, VxVM offers simple online disc storage management. In order to boost I/O throughput and safeguard against hardware failure, VxVM can be configured to support the Redundant Array of Independent Disks (RAID) concept. Moreover, VxVM has capabilities that improve disc failure quick recovery and fault tolerance.

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Ubuntu Multipass Installer for MacLinux

Multipass Installer for Mac/Linux

Ubuntu VM runs on Windows/Mac/Linux. Multipass can launch and run virtual machines and configure them with cloud-init like a public cloud. Prototype your cloud launches locally for free. It acts as a similar to Oracle Virtual Box or Docker engine 

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Diagram showing systemd-journald collecting log sources like kernel, system services, systemd units, applications, and boot processes, storing logs in a binary journal accessed by journalctl for real-time monitoring, forwarding, and searching.

Mastering journalctl for System Logs

syslogs which gets messages sent in systemd-journald and stored the data in the disk. To view the systemd messages execute journalctl and can be used with additional parameters. In this post we are going to see quick howto use journalctl command and how to use it

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SMTP reply codes

SMTP Reply codes rfc5348

SMTP Reply codes are used to determine the error in the message, SMTP(Simple Mail Transfer Protocol) is a standard protocol for sending emails, the client sends and the server responds, a response is with the 3 digit code which contains the meaning for the response with the codes, find the below SMTP reply codes

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ip calculator subnet

Simple IP calculator Subnet using korn shell script v1.0

In this post we are going to see how to write a script to find the subnet calculator, we are using korn shell to write. the interpreter we are going to use /bin/ksh, the korn shell supports MacOS, Linux and Unix flavours. This will be helpful for assign the ip address to the server ip planning.

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Breakout Rooms in Microsoft Teams

Breakout Rooms in Microsoft Teams

How can I use breakout rooms in Microsoft Teams?

Only the meeting organizer can start breakout rooms.
The meeting organizer can start a breakout room on the desktop client only.
Participants can join a breakout room from desktop, web or mobile.

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