PAPaul Adeoyeinpaulking.hashnode.dev·13h ago · 11 min readLinux Users, Groups, Permissions, and Privilege ManagementA Linux server can host multiple applications, services, administrators, and users at the same time. Without a way to control who can access what, a single compromised process or careless command coul00
PAPaul Adeoyeinpaulking.hashnode.dev·13h ago · 10 min readLinux Fundamentals: Working With a Linux Server — Part BIn part A, we established the fundamentals of the Linux environment: what Linux is, how distributions differ, how the shell provides access to the system, and how the filesystem is organized. Knowing 00
JSJayesh Sojitrainjayesh-sojitra.hashnode.dev·2d ago · 4 min read7 Ways to Cut Your AWS Bill Without Cutting PerformanceCutting AWS costs doesn't have to mean doing less. A meaningful share of real AWS spend is simply paying full price for something that didn't need to cost that much, not genuine capacity you're actual00
SAShehroz Aliinshehroz.hashnode.dev·2d ago · 4 min readAchieving 99.99% uptime on single Pod rollout using NEG-based Network Load BalancingIf you’re using an external passthrough Network Load Balancer sitting in front of your Kubernetes cluster, facts are most of the times its not aware of your Service Pod’s container health which result00
PAPaul Adeoyeinpaulking.hashnode.dev·4d ago · 8 min readLinux Fundamentals: Understanding Linux and Navigating the Filesystem — Part AIf you work or want to work in cloud engineering, sooner or later you will find yourself inside a Linux server. You may connect to a cloud instance, inspect configuration files, troubleshoot an applic00
PAPaul Adeoyeinpaulking.hashnode.dev·4d ago · 10 min readFrom a Single Server to Cloud Architecture: Why Modern Applications Use Multiple ServicesA simple application can run on a single server. You can install an operating system, deploy the application, connect a database, and make the application available to users. For a small application, 00
PAPaul Adeoyeinpaulking.hashnode.dev·5d ago · 10 min readWhat Is a Server? Understanding Clients, Servers and Web ApplicationsIn the previous article, we looked at what happens when an application runs inside an operating system. A program becomes a process, and the operating system manages that process through the kernel. B01I
PAPaul Adeoyeinpaulking.hashnode.dev·5d ago · 6 min readVirtualization Explained: How Cloud Providers Turn Physical Machines Into Virtual ServersIn the previous articles, we established how a computer runs applications and how computers can act as servers. We can now take that understanding one step further. A server is still a computer. But i00
PAPaul Adeoyeinpaulking.hashnode.dev·5d ago · 9 min readProcesses, System Calls and the Linux Kernel: In the previous article, we established the relationship between the CPU, RAM, storage, and the operating system. With that foundation in place, the next question is: What actually happens inside the 00
PAPaul Adeoyeinpaulking.hashnode.dev·Sep 29 · 9 min readHow a Computer Actually Runs an ApplicationWhen you open an application, it may appear to start instantly. However, underneath that simple action, the computer is coordinating several different components to make the application execute. The a00
