One of the advertised advantages of renting bare metal servers in the cloud compared to using virtual machines on dedicated or shared hardware is their better performance. That sounds right but how much faster is an entry level bare metal server in a data center with a few CPU cores compared to virtual machines running … Continue reading Bare Metal Cloud – Part 5 – Performance Comparison to Virtual Machines
When you are working with virtual machines in the cloud, I’m sure you’ve come across a situation in which you thought you had a great idea to reconfigure the network stack and ended up with the VM not being reachable anymore. As a last resort, one can always turn to the virtual machine manager and … Continue reading Bare Metal Cloud – Part 4 – Getting a Serial Console When the Network is Broken
In the previous post on the topic, I’ve had a look at how several virtual machines on my bare metal cloud server in a data center can share a single public IPv4 address. Public IPv4 addresses are expensive these days, so in many cases, sharing an IPv4 address and using non-standard ports for web servers … Continue reading Bare Metal Cloud – Part 3 – Several Public IPs – Macvtap vs. Bridging
Building on the previous post on this topic, I will have a closer look today how to use my new and shiny bare metal server in the data center for some virtual machine fun. As the server acts as a warm standby fallback for my cloud server at home, I’ve decided to use a setup … Continue reading Bare Metal Cloud – Part 2 – KVM and NAT Port Forwarding
So far, the public cloud has pretty much been ‘virtual machines’ for me, with varying numbers of CPUs, memory and storage, depending on the application. Recently, however, I’ve been looking for a way run copies of my home cloud based virtual machines (VMs) and Docker containers in a data center for redundancy purposes. For this … Continue reading Bare Metal in the Cloud – Part 1 – Let’s Rent Hardware
In the previous, I have taken a first look at Scaleway’s bare metal servers that are around 10 years old at the time of writing. Compared to other companies offering more recent hardware, their prices are significantly lower for some of their configurations. Despite the dated hardware, the offer is still interesting to me, as … Continue reading The Old Cloud – CPU and Disk Performance
In the previous post, I’ve been looking at a number of different companies that offer bare metal servers in their data centers. An interesting offer that is also the cheapest one I have found so far is from Scaleway. For a monthly price of 33 euros, they offer an Intel Xeon E3 E1220 or equivalent … Continue reading The Old Cloud
Following on from the previous post about having a plan C for a bare metal server in the cloud for running my own services, I’ve had a look at a number of different data center operators in Europe and how they offer bare metal servers. I’ve been very happy so far with Hetzner, as they … Continue reading Who Rents-Out Bare Metal Servers and How
I’m running four Nextcloud instances, all of them in separate virtual machines on Ubuntu 20.04. The problem: Ubuntu 20.04, despite still being rather young, comes with PHP 7.4, which has been declared end of live recently, and Nextcloud has announced that they will no longer support this PHP version in their next release. So while … Continue reading Nextcloud – Upgrading to Ubuntu 22.04
Last year I wrote about a 5G Americas whitepaper that describes how 3GPP has standardized the 5G core in a way that lends itself for cloud based implementation. In short, that means that control plane functions are split into microservices, deployed on bare metal clusters in containers and managed with Kubernetes. So far the theory. … Continue reading The Cloud Based 5GC – From Theory To Practice