Windows DNS Server: Error 404, 407, 408 with virtual machine on Hyper-V
In this tutorial, which is a special case, I will explain how to solve the 404, 407 and 408 error that can occur on a DNS server with Windows Server under the following …
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Network
39 articles
Windows Server: configure an IP address on a network card
In this tutorial, I will explain how to configure an IP address on a network card on a Windows server. This operation is not complicated, but there are several solutions …
GPO: force DNS computer registration
In this tutorial, I will explain how to force DNS registration of computers by Group Policy (GPO) in an Active Directory environment. Maintaining a clean, up-to-date DNS …
Ubuntu: show default gateway
Here is how to display the default gateway on Ubuntu from the command line. Ubuntu 20.04 + (without net tools) ip route show Ubuntu 18.04 - (with net-tools) route
Crowdsec: secure your web server network - installation and configuration
In this tutorial, I will explain to you how to secure the network part of your web servers with Crowdsec. The tutorial is made on Ubuntu 20.04 Crowdsec overview Crowdsec …
Use the hosts file to simulate a DNS record on Windows
Location of the hosts file : C:\Windows\System32\drivers\etc. Pour ajouter un enregistrement : 1. Start notepad as administrator. 2. Open the hosts file located in …
Hyper-V : create a NAT switch
In this tutorial, I will explain how to create a NAT switch (virtual switch) on Hyper-V. Before getting into the technical explanations, I will explain in a few words, …
Testing the bandwidth on a local network with iPerf
IPerf overview iPerf is a client / server command line utility that allows you to perform bandwidth testing on a local network between two machines. iPerf will make it …
Windows firewall, force domain profile
In this tutorial, I will explain how to change the network profile of the firewall on Windows. It happens that after a restart, the profile of the firewall goes private, …
Hyper-V: the different virtual switches
In this tutorial, I will tell you how to create a virtual switch on Hyper-V and tell you the difference between the 3 types. What is a virtual switch A virtual switch is …
Modify the subnet mask of a DHCP scope on Windows Server
Introduction In this tutorial, we will see how to modify the subnet mask of a DHCP scope on Windows Server. If we look in the properties of the scope, we realize that it …
Hyper-V: Create a virtual switch
Presentation A virtual switch in Hyper-V is a virtual switch that allows the connection of network adapters to be created using Hyper-V (virtual machine or host). Under …