Exchanging data with friends If you want to share files, pictures or videos with your friends but don't have a cloud account, you can use Solarwinds (Free) SFTP ServerContinue reading "
Everything about networking. Mainly I am concerned with the security of users and their usability.
Changing the network ID Another way to restore the trust relationship is to change the network ID. In this document I use the GUI and [...]Continue reading "
Disable NetBIOS NBT-NS NetBIOS NBT-NS is another broadcast protocol over TCP / IP like LLMNR. Easy to exploit and therefore dangerous. I mention it because it [...]Continue reading "
Record and evaluate DNS queries Sysmon (System Monitor) is a system service and driver at the same time, which always remains active after installation. Sysmon monitors all system activities and [...]Continue reading "
Public DNS Server DNS is practically the address book of the Internet. When a website is called up, the browser searches for the website address in the DNS system. Ever [...]Continue reading "
Remote Desktop Connection This error message is known in connection with an expired certificate or if one is expected but none are bound to the rdp_tcp protocol [...]Continue reading "
NCSI - Network Status Indicator The abbreviation NCSI means "Network Connectivity Status Indicator". Among other things, this mechanism controls the display (taskbar) of whether you have an Internet connection [...]Continue reading "
PKTMON network sniffer With the Windows 10 on-board tool “pktmon.exe” to be found under C: \ Windows \ System32 one is able to record the network activities. The tool can be [...]Continue reading "
Specifying WSUS firewall exceptions So that the WSUS server can receive updates from Microsoft, the following targets should be activated in the company firewall: https://dl.delivery.mp.microsoft.com https://dl.delivery.mp.microsoft.com https : //windowsupdate.microsoft.com https: //*.windowsupdate.microsoft.com [...]Continue reading "
No remote desktop connection NLA problem The remote desktop connection to the server V-APP-81-PRD could not be established due to an error. The analysis showed that a not [...]Continue reading "
netsh bind certificate If, for example, a web service is bound to an expired certificate, this problem can be corrected via the CMD. This method can be very [...]Continue reading "