TeamViewer is free for private use. Companies have to pay for the service. And with that service we may encounter a problem: The whole connection is established via the TeamViewer Server. Something […]
Event Viewer enables you to view events and logs on your computer. And troubleshooting an issue might require to view log files from other remote computers. Event Log Subscriptions comes into play […]
Last week I had the task to backup Hyper-V VMs. No Replica, no Clustering, a simple backup with Windows Server Backup. The problem was that a repeating backup job had already been set […]
As the headline says, with this small script you are able to test all your Domain-Controllers with a single command Test-AllDomainController. The simple things are the best, by all means 😉
As the headline says, it’s all about port scanning today. When a computer sends SYN to another computer, the remote computer will usually answer with SYN + ACK or RST. By this […]
I’ve experienced that many people deliberately disable the Windows firewall. They don’t want to get annoyed with it, if something don’t work as expected. But there’s nothing to worry about, because it […]
Firewalls control traffic. They use technology such as Stateful Inspection to establish a connection to other networks. In this article I describe how to configure the host-based Windows Firewall by using Windows […]
Microsoft Advanced Threat Analytics (ATA) is a platform that enables you to protect your infrastructure from cyber attacks. ATA is using a parsing engine to capture network traffic of protocols such as […]
Will you be notified when there are changes to group memberships? No? Memberships in groups are particularly interesting. Especially if it is the group of the domain administrators. The following article shows […]
What if a domain controller fails? Operations Masters have special tasks which must be performed by Domain Controllers in an Active Directory domain. If a Domain Controller fails, this special role must […]
There is more than enough monitoring software around. Most of them are really helpful and superbly done. For those who don’t have such software at hand, there are only 2 options: to do […]
Long time ago I’ve created a small function that acts like a port scanner. It’s not a replacement for enterprise scanners such as nmap, but it’s quite useful for quick tests when […]
In this article I would like to enlight the purpose of temporary IPv6 addresses. By default, automatic IPv6 setup of Link-Local Addresses is activated on each IPv6 enabled device. This makes IPv6 […]
Access based enumeration enables you to configure advanced display options for shared folders. If a user is mapped to a network drive and this network drive has the Access Based Enumeration Feature […]
Most of us use https. Almost every communication is secured and encrypted with https. In this article I would like to discuss the HTTPS process in more detail and what role certificates […]
Awarded the Microsoft MVP for PowerShell [2018-2022].
SID-500.COM 