Error “The RPC server is unavailable” – Part 2

Remote Procedure Call (RPC) is an inter-process communication technique to allow client and server software to communicate on a network. The RPC protocol is based on a client/server model. The client makes a procedure call that appears to be local but is actually run on a remote computer. Read More …

Fix Master Browser (MRXSMB) Event ID 8003

The Event ID 8003 (Master Browser) error messages, on some Windows Server systems (specially older ones) is probably one of the most searched on this environments due to the fact that this event is linked to WINS (the predecessor of DNS on Windows systems) and the Computer Browser system service (still available even on newer Windows 10 clients and Windows Server). Read More …

Microsoft – Changing SID of cloned VMs

On the machine level, every computer is identified by a unique value; named Security ID or SID. SID is calculated in the process of the installation of every Windows machine. Whether the computer is part of the workgroup (or it’s just a stand-alone computer), the value of SID is not crucial. Read More …

Powershell – Check and find the product GUID of an installed MSI setup

The product code is the unique GUID of identifying an application or product release; In other words, different versions and languages of Product must have different product codes. Also, ProductCode can be used to query feature state, and product state. For example, installer API “MsiQueryFeatureStateEx()” and “MsiQueryProductState()”, etc. Read More …

WSUS – Upgrading to Windows 10 1903

Microsoft finally released its latest Windows 10 build 1903, now called May Update, last week, much delayed from its initial scheduled release in March after suffering a number of upgrade issues. Let’s see how to enable an internal WSUS server to download and deliver this new update to all corporate Windows clients. 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 …

Windows 10 – Hide specific User Accounts from the Logon Screen

When you have too many people using your PC, or you want to keep an account secret, use this guide to hide user accounts from the Windows 10 sign-in screen. You can do this using Windows Registry. Read More …

Enabling DNS Registration Refresh Interval

On Active Directory domains is very important that clients set automatically their own DNS names on authoritative DNS servers for Read More …

Windows – Clear Group Policy Cache

That’s quite uncommon, but if we need to clear the local cache of Group Policies Objects (GPO) on a workstation/laptop joined to a domain, there are three main methods we can use to accomplish this activity. Read More …

MacOS – Edit hosts file

If you are setting up a new web server or another device that’s going to be connected to the internet and you want to put it through its paces before it’s live, or if you’re having trouble with spyware and adware networks, there’s an invisible file on your Mac that can help. It’s called the hosts file, and this is how to use it. Read More …