Install and Configure Tivoli Monitoring Agent in Linux
Install and Configure Tivoli Monitoring Agent in Linux

This guide has been written by a fellow IBMer, John Kyriazis (Kudos to him for his detailed document), in order to help us deploy Tivoli Monitoring Agents to several dozens of Linux VMs within a customer’s vInfrastructure.  Before you begin to install any agent in RedHat Environment in a corporate environment you must first make... » read more

Convert CentOS to RHEL7 using convert2rhel
Convert CentOS to RHEL7 using convert2rhel

Recently, I joined a migration task of moving several VMs of various Linux distros to RHEL7. There was the time consuming option to create new VMs and reconfigure everything from the beginning, adding each one of the custom packages, or converting to Red Hat Enterprise Linux (RHEL), using the convert2rhel utility. The most interesting this by using... » read more

How to remediate NTDS ISAM Event ID: 467
How to remediate NTDS ISAM Event ID: 467

There is an unfortunate situation, where your Active Directory’s database gets corrupted and you are left with no clues of what has caused this inconvenience, or how to resolve it. Sadly, we had to recently face that issue as this Event ID gets accompanied by several others, including Event ID 1084, of task category Replication,... » read more

Deploy MS SQL Server 2019 on Mac
Deploy MS SQL Server 2019 on Mac

Starting from Edition 2017, Microsoft SQL Server is available for deployment on Linux systems. This short guide lists the steps for installing SQL Server 2019 on a Mac. I will be setting this up on the following system: Beginning with it, it is necessary to install Docker for Mac. You can download it from this... » read more

Fix: Lenovo Server crashes after deploying VMWARE esxi 6.7
Fix: Lenovo Server crashes after deploying VMWARE esxi 6.7

If you are using Lenovo servers for your VMWARE infrastructure, you should consider following the below steps in BIOS: a) System Settings – Devices and I/O Ports – PCI 64-BitResourceAllocation set to Disable b) System Settings – Devices and I/O Ports -MMConfigBase set to 3GB c) System Settings – Processors – Processors.C-States set to Disable... » read more

Datastore shows as Not Consumed in vCenter 6.7
Datastore shows as Not Consumed in vCenter 6.7

Recently, we had to deal with an issue where several esxi hosts within a vCluster appeared to have non-identical datastores presented among them. First, we had to create an inventory of which datastores should be presented to this group of hosts and distinguish which of the hosts were unable to connect to them. So, in... » read more

Network-wide ad-blocking using Raspberry Pi 4 and Pi-hole
Network-wide ad-blocking using Raspberry Pi 4 and Pi-hole

A very simple project that can be completed within 20 minutes and provide a network-wide ad-blocking solution, is using your Raspberry Pi 4 with Pi-hole. There are numerous articles and guidelines on how to implement the solution. I found the most clear to be the one described on https://pi-hole.net/. Start by updating your Raspberry Pi,... » read more

Unofficial – Downgrade Windows Server version
Unofficial – Downgrade Windows Server version

Before starting, let me inform you that Microsoft itself, promotes no way (or supporting) of downgrading Windows Server versions. In my case, i wanted to downgrade several Windows Server Datacenter servers, to Standard Edition, during their in-place upgrade process. The initial plan was to create new VMs and reinstall everything but the heavy configuration and... » read more

An error occurred during the execution of xp_cmdshell. A call to ‘LogonUserW’ failed with error code: ‘1326’.
An error occurred during the execution of xp_cmdshell. A call to ‘LogonUserW’ failed with error code: ‘1326’.

Recently, i was invited by a senior developer to investigate an issue with the aforementioned result. User was receiving the below error when tried to execute a specific Stored Procedure by using xp_cmdshell: Msg 15121, Level 16, State 200, Procedure xp_cmdshell, Line 1 [Batch Start Line 338] An error occurred during the execution of xp_cmdshell.... » read more

OLE DB provider “Microsoft.ACE.OLEDB.12.0” for linked server returns message “Unspecified error”.  (Microsoft SQL Server, Error: 7303)
OLE DB provider “Microsoft.ACE.OLEDB.12.0” for linked server returns message “Unspecified error”. (Microsoft SQL Server, Error: 7303)

An interesting request came up from one of our customers. They were unable to complete a process that was running until lately. During a mass update in a database from a Microsoft Excel file, the export process was not producing a file. This custom upload process is based on a Microsoft. ACE.OLEDB.12.0 SQL Server Linked... » read more