MariaDB : Access denied for user ‘root’@’localhost’

Just after installing MariaDB on Ubuntu / Debian, this error may appear if you try to connect with phpMyadmin. To solve / work around the problem, we will create another user with the same level of rights as root. 1. Open an SSH connection on the server. 2. Enter the following commands: 3. Restart the …

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Windows Server: Change the TTL of DNS Records

TTL in DNS Record

Introduction TTL (Time To Live) is the time to keep the server’s DNS response in the client cache before a new request is made. By default the TTL is: 1 hour for static recordings. 20 minutes for dynamic recordings. In the case of a website migration, it may be necessary to lower the TTL for …

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RDS: solve the problem of multiplying the printer

Printer RDS

Symptom On RDS user sessions, printers go back times. Cause The problem comes from the CSR (Client Side Rendering) which makes it possible to transform the file in RAW format before sending it to the print server. Solutions New printer When setting up sharing of a new printer, uncheck: Render Print Jobs to Client Computers …

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Windows 2016 : Troubleshoot RDS Gateway Connection Issues – April 2019

Symptom You are using an RDS gateway on a Windows 2016 server The connection to the RDS gateway randomly fails depending on the extension with the RDC client The update kb4493470 is installed on the server. Solutions Solution 1 On the server uninstall the bet kb4493470. Solution 2 Install the update kb4493473 which solves the …

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Change the DNS cache duration of DFS Namespaces

In this article, I will explain how to change the DNS cache of a namespace. By default, the DNS cache is 300 seconds or 5 minutes. For example, during a server migration, it may be necessary to reduce the client cache. Change the duration Open the DFS Distributed File System Management console, right-click the name …

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WDS Boot PXE: Fix the 0xc0000001 Error

TFTP config

Symptom When you try to start a computer in PXE from a WDS server, the following error is displayed when loading the image: Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:1. Insert your Windows installation disc and restart your computer.2. Choose your language settings, and …

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SQL Server configure remote access

This article describes how to configure remote access to a SQL Server (EXPRESS). 1. Open the SQL Server Configuration Manager. 2. Go to SQL Server Network Configuration / Protocols for SERVER NAME, then right-click TCP / IP and click Properties. 3. Go to the IP Addresses 1 tab and then search for the IPAll 2 …

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DFS replication resolve error 4012

This article describes how to troubleshoot the DFS Replication Service 4012 error. In the Windows event log you have an error like this: The DFS Replication service stopped replication on the folder to the following local path: C: \ Windows \ SYSVOL \ domain. This server was disconnected from the other partners for a period …

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WSUS: Fix the problem of downloading Windows 10 updates

Console IIS on WSUS

The upgrades of Windows 10 are distributed using an .ESD file. By default, the WSUS server (IIS) does not process requests on ESD files and this fact in the Windows Update Manager updates remains at 0% download. To solve this problem, it has the MIME type declared in IIS. 1. Go to the IIS console …

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Office 365 with Active Directory Synchronization: Add an Alias to a Mailbox

To add an alias to a mailbox in an Office 365 environment whose Active Directory is synchronized, you must use the local directory (On Premise) to add the alias in the proxyaddresses attribute. 1. Open the Active Directory Users and Computers console and verify that the Advanced Features view is enabled 1 . 2. Right-click …

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