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# sysadmin

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âť“ Do you allow wrong input to enter your function?

âť“ Do you allow wrong input to enter your function?

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1 min read
A simple tool for automated MySQL database dumps and restores

A simple tool for automated MySQL database dumps and restores

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1 min read
10 Bash Commands Every Sysadmin Should Know

10 Bash Commands Every Sysadmin Should Know

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3 min read
Dev vs Prod

Dev vs Prod

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1 min read
DKIM, DMARC and SPF: The protective shield for your email communication 🛡️

DKIM, DMARC and SPF: The protective shield for your email communication 🛡️

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5 min read
DKIM, DMARC und SPF: Der Schutzschild deiner E-Mail-Kommunikation 🛡️

DKIM, DMARC und SPF: Der Schutzschild deiner E-Mail-Kommunikation 🛡️

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5 min read
Basic Linux Syntax Frequently Used by Writer

Basic Linux Syntax Frequently Used by Writer

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2 min read
Managing NixOS on DigitalOcean with Colmena

Managing NixOS on DigitalOcean with Colmena

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6 min read
How to make easy encrypted backups with rclone for free

How to make easy encrypted backups with rclone for free

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3 min read
Create a Self-Signed SSL Certificate for Apache in Ubuntu 22.04

Create a Self-Signed SSL Certificate for Apache in Ubuntu 22.04

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3 min read
The Unsung Heroes of the AI Age: Sysadmins, Our Digital Guardians

The Unsung Heroes of the AI Age: Sysadmins, Our Digital Guardians

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2 min read
Creating users and groups from a file with bash.

Creating users and groups from a file with bash.

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7 min read
Get Geeky with Python: Build a System Monitor with Flair

Get Geeky with Python: Build a System Monitor with Flair

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4 min read
Make Cronjob Script With Log

Make Cronjob Script With Log

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1 min read
Automating User and Group Management Using Bash Script

Automating User and Group Management Using Bash Script

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6 min read
550 5.7.1 Relaying denied

550 5.7.1 Relaying denied

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1 min read
How to Prevent SSH Timeout on Linux Systems

How to Prevent SSH Timeout on Linux Systems

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2 min read
Digital Ocean, analysis and my experience as a user

Digital Ocean, analysis and my experience as a user

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6 min read
How SSH Works - Under The Hood

How SSH Works - Under The Hood

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4 min read
Instalar Jenkins en Docker

Instalar Jenkins en Docker

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3 min read
A web form to launch your bash and powershell scripts

A web form to launch your bash and powershell scripts

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6 min read
Un formulaire web pour lancer vos scripts bash et powershell

Un formulaire web pour lancer vos scripts bash et powershell

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7 min read
Linux Process Management - The Easy Way

Linux Process Management - The Easy Way

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6 min read
Rundeck

Rundeck

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1 min read
Want to host your own website manually? Start here (Part 1)

Want to host your own website manually? Start here (Part 1)

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4 min read
RAID Server commands | tw_cli | MegaCli | mdadm

RAID Server commands | tw_cli | MegaCli | mdadm

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3 min read
PortOptsCLI - Ports Collection Accessibility

PortOptsCLI - Ports Collection Accessibility

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4 min read
Cannot use a custom SSH port in Ubuntu 22.10 or above? Here's a fix

Cannot use a custom SSH port in Ubuntu 22.10 or above? Here's a fix

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3 min read
Grupos e Usuários em Linux: O que você precisa saber?

Grupos e Usuários em Linux: O que você precisa saber?

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7 min read
Menjadi System Administrator Linux: Menguasai Sistem Operasi Open-Source

Menjadi System Administrator Linux: Menguasai Sistem Operasi Open-Source

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3 min read
Simplified: Linux Directory Structure [Part 2]

Simplified: Linux Directory Structure [Part 2]

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4 min read
quản lý server chuyên nghiệp bằng mRemoteNG và OpenSSH (thay vì putty)

quản lý server chuyên nghiệp bằng mRemoteNG và OpenSSH (thay vì putty)

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2 min read
How to create your private VPN with WireGuard

How to create your private VPN with WireGuard

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3 min read
Mettre Ă  jour des milliers de servers linux en un clin d'oeil avec Ctfreak

Mettre Ă  jour des milliers de servers linux en un clin d'oeil avec Ctfreak

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4 min read
Install Chocolatey on your Windows machine

Install Chocolatey on your Windows machine

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1 min read
How to steal a website and how to prevent it

How to steal a website and how to prevent it

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4 min read
How to transfer Files to Samba Server with Powershell 7.

How to transfer Files to Samba Server with Powershell 7.

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3 min read
Powershell - Remove files - folders đź“‚

Powershell - Remove files - folders đź“‚

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1 min read
How to delete a Kubernetes namespace stuck at Terminating Status

How to delete a Kubernetes namespace stuck at Terminating Status

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2 min read
Running Tomcat on Privileged Ports

Running Tomcat on Privileged Ports

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3 min read
Simple disk space monitor for linux servers

Simple disk space monitor for linux servers

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3 min read
My favourite rsync commands

My favourite rsync commands

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1 min read
El archivo de configuraciĂłn SSH es una navaja suiza

El archivo de configuraciĂłn SSH es una navaja suiza

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2 min read
How do I score 85/100 on my first attempt in LFCS exam

How do I score 85/100 on my first attempt in LFCS exam

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2 min read
*DevOps: {UN}complicated?!

*DevOps: {UN}complicated?!

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11 min read
Convert a java application into a Linux service

Convert a java application into a Linux service

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4 min read
Sauvegarde automatique sur FTP

Sauvegarde automatique sur FTP

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1 min read
SSH into a server behind Cloudflare using an SSH config file

SSH into a server behind Cloudflare using an SSH config file

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Série Nginx #5: Trabalhando com Geolocalização por IP

Série Nginx #5: Trabalhando com Geolocalização por IP

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2 min read
Using bridged networks with Docker

Using bridged networks with Docker

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2 min read
How IT People See System Administrators

How IT People See System Administrators

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So you've overwritten the partition table of that disk by mistake again huh?

So you've overwritten the partition table of that disk by mistake again huh?

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1 min read
7 principles of a good sysadmin

7 principles of a good sysadmin

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3 min read
If you're a sysadmin, I'd like to get your feedback.

If you're a sysadmin, I'd like to get your feedback.

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1 min read
Why aren't there any guides for new system administrators?

Why aren't there any guides for new system administrators?

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1 min read
Containerizing, and Troubleshooting, your Scheduled Tasks

Containerizing, and Troubleshooting, your Scheduled Tasks

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4 min read
Why Every Developer Needs to Use The CLI in 2021

Why Every Developer Needs to Use The CLI in 2021

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6 min read
From SysAdmin to SRE: How to evolve your skillset

From SysAdmin to SRE: How to evolve your skillset

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6 min read
Book review "Perl For System Administration"

Book review "Perl For System Administration"

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4 min read
Networking Tools Every Developer Needs to Know

Networking Tools Every Developer Needs to Know

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12 min read
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