How to speed up your Windows Update Server (WSUS) database
Sometimes our WSUS server displays the error – message below while performing some queries within the WSUS console. Our SUSDB file in C:\Windows\WID\Data grew up to 50 GB during the […]
How to install|migrate sendmail / procmail / spamassassin / dovecot / opendkim / bind / apache / mariadb / egroupware / bind on|from CentOS7 to Rocky Linux 8
We where already prepared to switch our servers from CentOS 7 to 8 but our project stopped immediately after we heard about the abrupt end of CenOS – so we where […]
How to add custom scripts on QNAP NAS devices
You can add custom scripts to the crontab on your QNAP NAS box. I’ll use it to create a timestamp file in a directory that will be synchronized in real […]
How to fix Exchange Offline Adressbook download issue (0x8004010f)
You may see the error below in Outlook connected to an on premise Exchange server: 0x8004010F: The operation failed. An object could not be found.or0x8004010F: Outlook data file cannot be […]
How to install/replace a SSL/TLS certificate on Microsoft Exchange Server 2013/2016
This tutorial describes how to install or replace a SSL/TLS certificate on a on-premise Microsoft Exchange Server. Hint: All commands are executed via Exchange Management Shell. Get a list of […]
Audio out of sync, crackling, latency on virtual Windows 10 on vmWare Workstation
I’m using Microsoft Teams and other audio related applications on a virtual Windows 10 machine running within vmWare Workstation player, also on Windows 10. I’m pretty sure those informations in […]
How to remove all partitions / data on a disk
To remove / delete all data on your disk drive, you can use one of the following methods below. Have a look a gparted in case you need a live […]
How to resolve conflict vibs error ESXi host upgrade from 6.0 to 6.7?
I got an error while upgrade ESXi host from ESXi 6.0 to ESXi 6.7 U3b. The upgrade process failed with the error “Conflicting_vibs Error”. See screenshot below. Error: <CONFGLICTING_VIBS ERROR: […]
How to update Microsoft Security Essentials in Windows Server 2012 R2
After performing a Windows update on Windows Server 2012 R2 it failed to install with error 0x8004FF04. A note to Windows 8, 8.1 or 10 users receiving this error for […]
How to configure DKIM & SPF & DMARC on Sendmail for multiple domains on CentOS 7
DKIM DKIM is DomainKeys Identified Mail and is used in mail servers, such as Postfix or Sendmail to sign e-mails and thus authenticating the sender so that a forgery can […]