SQL Server – Creating linked server in SQL Server Management Studio

In SQL Server environments the linked server functionality is commonly used to connect to another (remote) database or file (Xls, CVX) using SQL Server Management Studio (SSMS) and access and use the remote data and objects. Read More …

VMware vCenter – Enable Single Sign On (SSO)

Platform Service Controller is a new component in VMware vSphere. The PSC contains all the services that vCenter needs for its functions including Single Sign-On (SSO). This post describes how to configure AD authentication in vCenter Server. Read More …

CentOS / RHEL 7 / Debian – Disable IPv6

If network troubleshooting leads you to believe there’s an issue with IPv6, you may need to shut down that protocol on your Linux machines. Since some hardware doesn’t take advantage of IPv6 (and most admins are still working with IPv4), a temporary and easy solution is to disable IPv6. Read More …

CentOS / RHEL 7 – Regenerate UUID for Network Cards (Physical and Virtualized Environments)

Usually, when cloning VMs on virtualized systems (Hyper-V or VMware, for example) an issue could occur related to vNICs: a vNIC could be renamed and so no more the same of the old VMs (obviously). Read More …

Microsoft SQL Server SSIS – The RPC server is unavailable

Once installed Microsoft SQL Server SSIS (Integration Services) on a Windows Server node, when you try connect to it remotely (SQL Server Integration Service) directly from SSMS you could see an error related to “The RPC server is unavailable”. Read More …

Check mySQL and MariaDB Server Version

There are circumstances where you need to know the version of your database server, e.g., when upgrading the database or patching any known server vulnerabilities. There are a few ways to find out what the version of your MariaDB server is. Read More …

Linux – Removing Apache HTTP Server

Removing Apache HTTP Server ensures that, it’s existing files or services will not create conflict when we install Apache HTTP Server from the source code. Read More …

VMware – OVF ha un manifest file non valido

Spesso, in ambienti VMware complessi si adopera molto la funzionalità di estrazione delle virtual machines in formato OVF/OVA, per poter trasferire tali VM su altri cluster VMware o semplicemente adoperarli come template su altri sistemi di virtualizzazione. Read More …

Configuring Let’s Encrypt TLS Certificates

Let’s Encrypt® has revolutionized the way to obtain, install and use TLS/SSL certificates for websites and other services. With its Read More …

VMware – The OVF package is invalid and cannot be deployed

During a VM migration on a VMware ESX infrastructure, using OVA/OVF formats, VMware importing process could be difficult due to the possibility to deploy the OVF/OVA package, and the vSphere Client fails. Read More …