Newton Cardoso

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systemd-analyze – Find System Boot-up Performance Statistics in Linux

Are you using systemd system and service manager, and your Linux system taking longer time to boot or you simple want to view the reports of your …

Linux

Contain yourself – literally. You can't avoid Docker, K8s for long

<b>Comment</b> Death reports of containerization biz somewhat exaggeratedDo you remember those guys that invented virtualization, founded a company, got …

DevOps

Learn How to Use ‘fuser’ Command with Examples in Linux

One of the most important task in Linux systems administration, is process management. Its involves several operations under monitoring, signaling …

Linux

How to Use a Multimeter to Measure Voltage, Current and Resistance

How to Use a Multimeter to Measure Voltage, Current and Resistance<p>Updated on March 30, 2018<p>What is a Multimeter?<p>A digital multimeter or DMM is a …

Arduino

linux commands examples

All commands <br>0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z<p>How can this site be more helpful to <b>YOU</b> ?

iptables Tips and Tricks - Not Locking Yourself Out

The iptables tool is one of the simplest, most powerful tools you can use to protect your server. We've covered port redirection, rule processing and …

iptables Tips and Tricks - Track Bandwidth with iptables

As I mentioned in my last post about CSF configuration in iptables, I'm working on a follow-up post about integrating CSF into cPanel, but I thought …

iptables Tips and Tricks - Rule Processing

As I mentioned in "iptables Tips and Tricks - Port Redirection," iptables is probably a complete mystery to a lot of users, and one the biggest …

Cool, but obscure unix tools :: Software architect Kristof Kovacs

Linux

An Introduction to the Z File System (ZFS) for Linux

ZFS is commonly used by data hoarders, NAS lovers, and other geeks who prefer to put their trust in a redundant storage system of their own rather …

Linux Memory Management | IBM

<b>Scenario</b>: When running the free command in Linux, you discover that only 55MB of your 3GB of memory is marked free. However, no processes appear to …

F*CKING Shell Scripts - They Are Just Shell Scripts

Admit it or not, coding things is pretty much an exhausting task. Not only will you <b>need</b> stock knowledge on just about every kind of industry known to …

SSH Tunnel - Local and Remote Port Forwarding Explained With Examples

There are two ways to create an SSH tunnel, local and remote port forwarding (there’s also dynamic forwarding, but we won’t cover that here). The …

Restrict the Root User from SSH Access | IBM

Overview<p>Every Linux system on our network has a root user with administrative permissions. Within Linux, wheel groups may be created which can give …

Hi! I'm Ben.

I'm a software developer from Durham, North Carolina. I write and speak about JavaScript, software development, and developer tools. If you're …

SSH Tricks

We use SSH to log into our servers, but it actually has a lot of neat tricks it can help us with as well! We'll cover some of them here.<p>Logging in<p>Of …

Sometimes Kill -9 Isn’t Enough

If there’s one thing to know about distributed systems, it’s that they have to be designed with the expectation of failure. It’s also safe to say …

Sed - An Introduction and Tutorial

Last modified: Thu Apr 23 16:37:48 EDT 2015<p>Sed Commands<p>= - print line number<p>a \ - Append<p>d and D - Delete<p>g and G - Get<p>h and H - Hold<p>i \ - Insert<p>l - …

Linux

An Introduction to Unix

<b>Everybody Knows How to Use a Computer, but Not Everyone Knows How to Use the Command Line. Yet This is the Gateway to Doing Anything and Everything</b> …

The Essential Cheat Sheet for Linux Admins

One of the first basic steps in Unix administration is to master the Unix commands within the Unix shell. I’ve created a cheat sheet which summarize …

netboot.xyz

Bootloader Downloads<p>These iPXE disks will automatically load into boot.netboot.xyz:<p>Type<p>Bootloader<p>Description<p>ISO (Legacy)<p>Used for CD/DVD, Virtual CDs …

Cloud Computing