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Deprecated Linux Networking Commands and Their Replacements

In our previous article, we have covered some useful command line networking utilities for Sysadmin’s for network management, troubleshooting and …

Linux

A Linux Sysadmin’s Guide to Network Management, Troubleshooting and Debugging

A system administrator’s routine tasks include configuring, maintaining, troubleshooting, and managing servers and networks within data centers. …

Linux

Why

NFPM<p>NFPM is Not FPM - a simple deb and rpm packager written in Go.<p>While fpm is great, for me it is a bummer that it depends on Ruby, tar and probably …

Linux

Scaling Your Amazon RDS Instance Vertically and Horizontally | Amazon Web Services

<i>Marie Yap is a solutions architect for Amazon Web Services.</i><p>As a managed service, Amazon RDS takes care of the scaling of your relational database so …

Databases

Bash Brackets Quick Reference

<i>Cover image credit: Fonts.com</i><p>Bash has lots of different kinds of brackets. Like, many much lots. It adds meaning to doubling up different brackets, …

Linux

Autoscaling for Kubernetes workloads

May 14, 2018<p>This article was contributed by Antoine Beaupré<p>Technologies like containers, clusters, and Kubernetes offer the prospect of rapidly …

The Container Wars: Kubernetes vs Amazon ECS

Among container orchestration technologies, Kubernetes and Amazon ECS lead the pack. However, on what basis should systems administrators choose one …

Is K8s Too Complicated?

Joe Beda had a great twitter thread this morning about the complexity of Kubernetes. You can read it in full, and I suggest you do, but I wanted to …

Oracle VM VirtualBox: get Kubernetes cluster running in minutes!

By: | Director of Product Management<p>For who is interested to manually install Kubernetes from scratch.....you can easily follow the guide available …

You Need These 7 Easy Sheet Pan Chicken Dinners in Your Life

A trusty sheet pan is one of the best easy weeknight dinner solutions. Pile the whole meal onto it, toss it in the oven, and in next to no time you …

Classic Country-Fried Steak Recipe - Southern Living

Country-Fried Steak Recipe<p>How to Make It<p>Step 1<p>Sprinkle 1/4 tsp. salt and 1/4 tsp. pepper onto cube steaks, flipping to season both sides.<p>Step 2<p>In a …

Creating Kubernetes liveness and readiness probes

One of the main advantages of using Kubernetes is its ability to maintain containers running in a cluster: Simply create a pod resource, let …

Delete a CloudFormation Stack And Retain Resources

I want to delete an AWS CloudFormation stack but I don’t want to remove all its resources. What can I do to keep some of the resources in the …

Use Vagrant and VirtualBox to setup Oracle Container Services for use with Kubernetes

By: | Sr. Director of Product Management<p>Recently we announced the Oracle Vagrant boxes GitHub repository. Now you have a more streamlined way to …

ssh proxying through many hosts

“the hacker is bouncing all over the globe, we can’t trace him.”<p>There is an awesome flag that can be set for ssh. This is the idea of using ssh as a …

Linux

Container Isolation Gone Wrong

IntroductionOne of the main advantages of embracing containers is "lightweight virtualization." Since each container is just a thin layer around the …

Monitor Amazon RDS for MySQL and MariaDB logs with Amazon CloudWatch | Amazon Web Services

Amazon RDS has long offered customers the ability to view and download logs associated with their DB instances for troubleshooting purposes. Now, …

How to Create Custom Header Template for Shell Scripts in Vim

In this article, we will show you a simple way to configure a custom header for all newly created bash scripts in Vim editor. This means that every …

Nmap Cheatsheet

Nmap Quick commands<p>Ping Sweep<p>example<p>or<p>List Scan aka reverse-dns lookup<p>On a corperate network this is a bit better of a scan due to enumeration of …

Ancient clay tablet has revealed locations of 11 ‘lost cities’ from 4,000 years ago

Baked clay tablets from ancient Assyria, dating back as much as 4,000 years, could reveal the locations of 11 ‘lost cities’ in modern-day …

Archaeology

7 Grep command examples with extended regex in Linux/Unix

Sep 13, 2017, 13:00 (1 Talkback[s]) <br>(Other stories by Surendra Anne)<p>In our the previous post we saw how to use Basic regular expression along with …

Linux

Here's How To Make the Best-Ever Apple Cobbler

Cobbler may be one of the homiest-looking desserts, but it’s actually a delicate balancing act between the tender topping and cooked fruit. Overdo it …

Docker Overview, Architecture and Application Deployment

Docker Overview, Ecosystem, Architecture and Application Deployment<p>Reading Time: <b>19 Minutes</b><p>by Navdeep Singh Gill | July 21, 2017<p><b>Docker Ecosystem and</b> …

DevOps

How to create and manage Docker networks

Docker allows you to create specific networks and attach containers to them. Here's how to make use of this highly flexible feature.<p>Docker is one of …

DevOps

How to Boost Linux Server Internet Speed with TCP BBR

BBR (Bottleneck Bandwidth and RTT) is a relatively new congestion control algorithm written by software engineers at Google. It is the latest …

Speed Up Nginx Performance with Ngx_Pagespeed on CentOS 7

Nginx [engine x] is a free and open-source, cross-platform, powerful web server and reverse proxy software written in C. It is also a standard …

Manage Log Messages Under Systemd Using Journalctl [Comprehensive Guide]

Systemd is a cutting-edge system and service manager for Linux systems: an init daemon replacement intended to start processes in parallel at system …

How to automate your deployment and SSH activities with Fabric

It is not uncommon for developers to interact with remote servers. Beside FTP clients many use terminals or consoles to carry out different tasks. …

DevOps

Setting Up a Production-Quality Kubernetes Cluster on AWS

Bootstrapping a microservices system is often a very difficult process for many small teams because there is a diverse ecosystem of tools that span a …