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How To Troubleshoot and Inspect Kubernetes Networking

Kubernetes is an open-source tool that is crucial in container orchestration. Kubernetes helps in orchestrating and managing clusters at scale across various cloud environments or even on-premise servers. A cluster is a set of hosts meant for running containerized applications and services. A cluster needs a minimum of two nodes to work – one master node and a worker node. …

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What is Docker? An Overview of the Docker Ecosystem

Introduction If you dabble in the world of programming, then you may be familiar with the term ‘containerization’. If not, containerization is a process that helps make applications more manageable. It works by allowing the programmer to distribute applications in organic, portable packages. Each package is lightweight and isolated, complete with its own environment. These individual packages are known as …

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The Nitty Gritty of Networking: Learn about Terminology, Interfaces, and Protocols

Introduction In the modern world of technology, having in-depth knowledge of how networking works has become a requirement. If you are involved in server management, then you definitely need to be aware of how it works. Having detailed knowledge about the inner operations of your service will help you keep your services in line. It will help you employ the …

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How to Build Robust Security Measures to Protect Your Servers

Introduction When working on cloud infrastructure, your primary concern is making sure your applications are fully operational. One important inclusion of your setup and deployment process is to build effective, thorough, and robust security measures into your apps or systems before they are offered to the public. Instead of retroactively implementing security measures post-deployment, it is important to ensure that …

Update rDNS and PTR records

How to Dynamically Update and Manage Reverse DNS/PTR Records for Your CloudSigma Infrastructure

It is now possible to dynamically manage your PTR records on CloudSigma’s DNS servers. This new functionality provides greater flexibility in setting up your applications in our cloud. We now accept dynamic updates of PTR records within our zones. This means that our dynamic DNS servers (DDNS) will accept updates directly from individual IP addresses from the networks used within …

Understanding CPU Steal Time in the Cloud

Are We Stealing from You? Understanding CPU Steal Time in the Cloud

Customers often ask about CPU steal time. Especially those that use the CPUs heavily and for whom it’s a key performance criteria. There are quite a few differences in the setup and behaviour of CPUs and cores between physical and virtual environments. Even between cloud providers there are setups differences that make like for like comparison on the face of …

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Using CloudSigma’s API with Golang

aLogging into the CloudSigma website presents one with all that is needed to create, configure, and administer a CloudSigma virtual infrastructure, or IaaS. Alongside the menu for the various control panels, you will also see a link to the API documentation. The API enables programmatic access to all of the website functionality of the CloudSigma platform via HTTPS, returning JSON …