I simply overlooked to create one DNS record in my virtual lab. The good news is that I quickly resolved the problem and even better I prepared the new story on my blog. Here is the detailed (step-by-step) troubleshooting guide for the similar DNS problems.
Let’s begin! Continue reading
A few days ago, I routinely checked my VM for updates. The Windows update dialog opened and it looked like I had never before updated this machine. That is weird. Anyway, I will now check for updates and Windows will be happy. At least, I taught so.
When I clicked on the button [ Check for updates ], Windows update popped up an error message that it cannot search for new updates. The reason was very strange – the service is expired.
Recently, we have made a major upgrade of the network infrastructure for one customer. We replaced the old switches and introduced the complete VLAN infrastructure. At the end of the day, everything seemed to be good.
Then, after two days, DUDE started to raise alarms related to DHCP service. We received a bunch of e-mails related to an empty DHCP pool. It was a mystery how this DHCP pool emptied when there are only 10 workstations and this happened during a public holiday when the offices were empty. Continue reading
If you want to view a file details in Windows with GUI, you need to right-click on the file in Explorer, select Properties from the context menu and then click on the Details tab. Easy.
Can you do the same task using only the command line? With a little magic and a few mighty tricks you can do that, too.
I have a very strict policy that servers must not access the Net. If a server needs to be accessible from the Net, it will be placed in the DMZ zone with very rigid firewall rules. To update all servers, I need to implement the WSUS server in the local network.
I never let servers update automatically. Rather, I let them notify me about available updates and then I will manually run an installation process.
MiViLiSNet 