my Ubuntu VirtualBox virtual machine

https://pragprog.com/titles/bhcldev/ – “Small, Sharp Software Tools” – I followed the instructions in chapter “Creating an Ubuntu Virtual Machine with VirtualBox” my host OS: macOS … I chose to use the current Ubuntu LTS release (20*) as opposed to the 18* one mentioned in the book – on my 2nd try I surfed to kubuntu.org and… Continue reading my Ubuntu VirtualBox virtual machine

VirtualBox needs “occasional” reboots for best performance

https://en.wikipedia.org/wiki/VirtualBox I am running VirtualBox on a MacBook Pro (Mac OS X 10.11.6). It is running 2 virtual machines: Win8.1 openSUSE I hardly ever completely shut down the MacBook, I always only pause it. I “never” shut down the virtual machines, I only pause them as well. Until I shut down the virtual machines and… Continue reading VirtualBox needs “occasional” reboots for best performance

VirtualBox: multiple virtual machines with SSH servers on port 22 – how to reach them?

In the VirtualBox Manager: > Settings > Network > Port Forwardings > for every virtual machine add a service with a new, unique Host Port (e.g. 2229), the Guest Port always set to 22 – if that’s the port, your local SSH server is listening on. Once that’s completed, you can reach a specific one like… Continue reading VirtualBox: multiple virtual machines with SSH servers on port 22 – how to reach them?

my Synology DiskStation now functions as a NAS to my entire I.T. landscape including Mac OS X, Windows, and NFS

http://linux.die.net/man/5/exports – /etc/exports Actually (as you might remember) there is not just one Synology DiskStation (AKA NAS) here, but three of them – you will find more information here on the blog, if you follow category Synology or NAS. So I am referring to my “primary” NAS here. NFS is the most recent achievement, and… Continue reading my Synology DiskStation now functions as a NAS to my entire I.T. landscape including Mac OS X, Windows, and NFS

“Oracle Linux Server” as VirtualBox guest OS: a few administrational experiences

There is a VM appliance, that I run …, and that appliance uses Oracle Linux Server as its OS. I want the appliance’s hostname to be oracle000 – it’s going to be my Oracle Databaser server anyway. Q: The appliance’s network connection to outside – how to activate it? Initially the appliance’s network connection seems… Continue reading “Oracle Linux Server” as VirtualBox guest OS: a few administrational experiences

“Oracle Solaris 11” VM images to run in e.g. VirtualBox

http://www.oracle.com/technetwork/server-storage/solaris11/downloads/virtual-machines-1355605.html You need to update VBox Guest Additions – that does not include removing the old version of this package, so we have to do this ourselves: root # pkgrm SUNWvboxguest root # pkgadd -d /media/VBOXADDITIONS/VBoxSolarisAdditions.pkg all