Linux: extend a partition

Intro In this tutorial, I will explain how to extend a partition on Linux (Ubuntu). This type of operation is common when using virtual machines on Hyper-V for example or on VPS (Virtual Private Server). Before doing anything, you need to make a backup of the virtual machine or the data on it even before …

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Veeam: change the location of the logs

Introduction Veeam backup software writes a lot of logs and they are stored by default on drive C at the following location C:\ProgramData\Veeam\Backup. As you can see in the screenshot below, this represents a certain volume, over 4GB, and if the C: \ drive starts to run out of space, it might be worth moving …

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CRON scheduled task that does not run

In this article, I will explain how to fix the issue of CRON spots not running on Linux. I have been facing this problem to set up a backup script for the site. Execute the command: This command should return you the list of scheduled tasks. Depending on the commands, the PATH variable for users …

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SQL Server: reduce the size of the transaction log

In this “troubleshooting” tutorial, we will see how to reduce the transaction file (ldf) of a SQL Server database. Normally this file is truncated during server backups (Veeam, Altaro …) or by the maintenance plan. In certain situations with SQL Express, the “truncation” is not done and if the size of the file is badly …

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Outlook : autodiscover disable SCP Active Directory

In this troubleshooting tutorial, we’ll see how to prevent Outlook autodiscover from using the Active Directory SCP point for mailbox configuration. What this type of “trick” is used for: If the computer environment in which you already have an Exchange installation and the mail servers have not been properly uninstalled. If you find yourself in …

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Use the Telnet client to test a network connection

Presentation In this tutorial, we will see how to use the Telnet client to test the connection to a service (IP: PORT) for diagnostic purposes. Telnet is a client / server TCP protocol that listens on port 23 which allows the administration of equipment (switches, firewall …) and of certain servers (UNIX, LINUX). It is …

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RDS farm: delete a server not available in the deployment

In this tutorial, we will see how to remove a server from a deployment that is no longer available. When connecting to the service broker, the following message is displayed: The following deployment servers are not in the server pool1. SERVER-FQDN .Add them to the server pool This type of error occurs if the server …

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Active Directory: Restore default GPOs Default Domain Policy / Default Domain Controller Policy

In this tutorial, we will see how to restore GPO Default Domain Policy / Default Domain Controller Policy to default. On domain controllers, a DCGPOFIX command line tool is available to restore the 2 default policies. Before proceeding with the restoration of the policies, I advise you to make a backup of this one before. …

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Security: prevent local logon on Windows servers

Intro In this tutorial, we will see how to prevent local logon on Windows servers. What you should know is that by default all users are allowed to log on locally to Windows except for domain controllers. For servers in Workgroup, the problem is less posed but for servers members of a domain, all users …

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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 is not possible to modify the subnet mask. The “modification” of the DHCP scope is done in several stages: Exporting the DHCP …

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