Erwin Bierens

Knowledge is Power

Running PowerShell on your RaspberryPi

2018-12-06 1 min read Linux Powershell Erwin Bierens
For many years PowerShell was a Windows-only thing that was part of the closed Windows ecosystem. Now a days PowerShell is open source up at https://github.com/PowerShell with lots of docs and scripts, also open source. PowerShell is supported on Windows, Mac, and a half-dozen Linux distros. While running PowerShell on your RaspberryPi is still experimental and only supported for Raspbian Stretch it’s running pretty smoothly. / Installing Install the prerequisites Continue reading

Skype for Business Online Audio Conferencing - Dial out behavior change

Microsoft is making some changes to Skype for Business Online Audio Conferencing Dial Out. To best meet our customer’s business needs, Microsoft is adjusting when attendees can add other participants to a Skype for Business meeting via dial out. / How does this affect us? Till now, meeting guests are able to add Audio Conferencing attendees at any time. Going forward, the meeting service will require at least one authenticated user from the organizer’s company to be present in the meeting to allow adding another participant via dial-out. Continue reading

Upgrade Audiocodes OVOC 7.4.328 to 7.6.143

2018-11-15 2 min read Audiocodes Erwin Bierens
AudioCodes One Voice Operations Center (OVOC) is a voice network management solution that combines management of voice network devices and quality of experience monitoring into a single, intuitive web-based application. / Upgrading Download the right ISO from the Audiocodes site. Here’s the deeplink (link) Mount the ISO to the linux system in your Hypervisor. Login using Putty to the SSH shell with user acems and default password acems. Promote yourself to root with: Continue reading

Error 0x800705b4 in Windows Update

2018-10-31 1 min read Windows Server 2016 Erwin Bierens
Recently i was installing some new servers in my lab environment and ran in to this Windows Update error 0x800705b4. / Fix the Windows Update issue Microsoft provides Windows Update troubleshooter which will detect the problem and (try) to fix it. Try using this method to fix the 0x800705b4 error. Type troubleshoot in Cortana/Search at the bottom left corner of desktop. Click Troubleshooting on the pop-up menu. Click System and Security Continue reading

Move VMs between ESXi Hosts with SSH

2018-10-31 1 min read Linux VMWare Erwin Bierens
Recently is had some issues with capacity and old server hardware. I created some new ESXi hosts and wanted to move the VMs to the new hosts. Below i will describe how i obtained this: / Setup Access Start SSH and ESXi Shell on both servers, you can do this from the Web UI, Hosts > Actions > Services Now create the destination folder (mostly VM name) on the new ESXi host. Continue reading

Error on installing Kali Tools in Ubuntu

2018-10-25 1 min read Linux Security Erwin Bierens
When you want to run a Raspberry Pi for pentesting, you can easily download all of the Kali linux to your Pi. https://www.ostechnix.com/install-kali-linux-tools-using-katoolin-linux/ After changing the repository i ran in to a error. While people on the forum ginving some different options, this one worked for me. `wget https://http.kali.org/kali/pool/main/k/kali-archive-keyring/kali-archive-keyring_2018.1_all.deb` `sudo apt install ./kali-archive-keyring_2018.1_all.deb` Everything looks fine now. Let’s check for the final. `sudo apt-get update` `` /s
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