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How to remove all partitions / data on a disk

24.07.2020
Tom Huerlimann

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?

08.03.2020
Tom Huerlimann

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

06.03.2020
Tom Huerlimann

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

21.10.2019
Tom Huerlimann

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

12.08.2019
Tom Huerlimann

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

02.08.2019
Tom Huerlimann

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

23.06.2019
Tom Huerlimann

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

09.05.2019
Tom Huerlimann

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

27.01.2019
Tom Huerlimann

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

14.01.2019
Tom Huerlimann

Update from Eugene from within the comments section: “What worked for me was to just press F11. I was then able to move and resize the window again.” I was […]

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  • How to remove all partitions / data on a disk
  • How to resolve conflict vibs error ESXi host upgrade from 6.0 to 6.7?
  • How to update Microsoft Security Essentials in Windows Server 2012 R2
  • How to configure DKIM & SPF & DMARC on Sendmail for multiple domains on CentOS 7
  • How to change default password of Brocade fibre channel SAN switches

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