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 […]
How to change default password of Brocade fibre channel SAN switches
Brocade fibre channel switches containing the Fabric OS (FOS) will be delivery with the preconfigured default accounts admin, root and user. It is important not to use default passwords in […]
How to install Icinga 2 and Icinga Web 2 on CentOS 7
Requirements Install a fresh CentOS 7 (1810) This tutorial requires SELinux to be disabled. In case you need to use SELinux, please read the appendix at the end of the […]
How to install/configure Samba basics on CentOS7
Install Samba # yum -y install samba* Enable Samba # systemctl start smb # systemctl enable smb Sample configuration The sample configuration below can be used to get access to […]
Netgear GS516TP problem 802.3ad LAG/LACP – only one direction full bandwidth
A little story Starring: This cutty device I’ve ordered a new GS516T 16 port L3 switch from Netgear, because i had to increase the performance of an NAS device attached […]
Hacked: Identity leak after release of Unknown Collection #1 – #5
A week ago, a large dataset (~1000 GB) of 2.2 billion E-mail addresses and passwords was released to the public. The dataset was released in five parts and is a […]
Issue: Whatsapp Desktop stucked in fullscreen mode
I was not able to resize the window of the WhatsApp Desktop application and even if i have uninstalled the app and install it back, the fullscreen persisted. You can […]