Putorius Linux

Putorius is a #Linux blog that provides in-depth articles on commands, services and techniques for the inquisitive #SysAdmin or #DevOps engineer.

[Putorius Linux @CuriousPutorius]

Today's #Linux quick tip comes from a question send in by Jose C. How do I find the #motherboard model and serial number of my #Linux system? Good questions... Here's an answer!

https://t.co/xbUUjugQ7r

[Putorius Linux @CuriousPutorius]

In today's #Linux quick top we learn how to limit #Docker #containers access to specific IP addresses. Essentially creating a whitelist of IP addresses allowed to access our #containerized applications.
https://t.co/c0EIIxMECc
#container #DevSecOps #development #developer

[Putorius Linux @CuriousPutorius]

Today's #Linux quick tip came from a question sent in by one of our readers. He wanted to know if there was an easy way to find out when his Linux OS was installed. Well, here you go!
https://t.co/HvLBzff9KO
#DevSecOps #technology

[Putorius Linux @CuriousPutorius]

In todays #Linux quick tip we learn how to check how long a process has been running. Great for #DevSecOps engineers and #LinuxAdmins who need to debug scripts.
https://t.co/U6Ianvymyh

[Putorius Linux @CuriousPutorius]

7Zip 21.0 Now Provides Native #Linux Support.
#opensource https://t.co/zEKh15FNyq

[Putorius Linux @CuriousPutorius]

In this #Linux tutorial we look at the pee command. It allows you to send your data streams to two different pipelines. It's a great #opensource utility for any #SysAdmin or #DevOps engineer to know.

https://t.co/yXMc7v0lhH

[Putorius Linux @CuriousPutorius]

The #Linux sponge command allows you to read STDIN and write it to a file. Learn how it differs from a simple redirection and how it can be an important tool for #SysAdmin and #DevOps engineers.
#opensource https://t.co/m7U4V8W5E3

[Putorius Linux @CuriousPutorius]

CrowdSec is a free and #opensource security automation tool that leverages local IP behavior detection and a community powered IP reputation system.
#linuxsecurity #Linux #DevOps #CyberSecurity #infosec

https://t.co/tjPSd71bwi

[Putorius Linux @CuriousPutorius]

A new #Linux quick tip video tutorial just posted.
#sysadmin #DevOps #opensource #shellscripting

https://t.co/AWYqFR9lQj

[Putorius Linux @CuriousPutorius]

Have you ever wished you could easily add timestamps command output on #Linux? How about converting that UNIX timestamps to something more user friendly? With ts you can easily add or covert timestamps on almost any output. #DevOps #opensource #sysadmin
https://t.co/syWid7HjRJ

[Putorius Linux @CuriousPutorius]

The #Linux basename command allows you to easily strip directory and suffix (file extensions) from filenames. We look at how to use this command, it's options, and demonstrate it with real world examples.
#DevOps #sysadmin #GNU #opensource
https://t.co/KM2uQGqZqR

[Putorius Linux @CuriousPutorius]

@DevRopes https://t.co/5FLWuGKNxM

[Putorius Linux @CuriousPutorius]

As we continue through the #GNU Core Utilities we come across the head command. This utility allows you to print the firt x number of lines from a file. It is a must know for any #Linux #sysadmin and a perfect compliment to the tail command.
https://t.co/1YndT1A3gS

[Putorius Linux @CuriousPutorius]

As we continue to highlight the tools included in the #GNU Core Utilities we come across another great text utility. The fmt command is used for formatting large text files on the #Linux command line.
https://t.co/01EQqd7dKi
#DevOps #SysAdmin

[Putorius Linux @CuriousPutorius]

Today we are looking at some of our favorite features of the #BASH shell. Brace expansion is a must for anyone who regularly uses the #Linux command line. Here is a beginners primer on brace expansion to get you started.
https://t.co/OKgUzW4Co4

[Putorius Linux @CuriousPutorius]

In today's #Linux quick tip we discuss changing shells... How to check your current #shell, list all available shells, and setting your default and current shells. WOAH...That's a lot of shells.
https://t.co/AzsAOVd8bL

[Putorius Linux @CuriousPutorius]

In this weeks #Linux quick tip we discuss remove the #Windows carriage returns (^M) from files in Linux.

https://t.co/PfLvbayXSA

[Putorius Linux @CuriousPutorius]

Today we take a look at another nifty text utility from #GNU Core Utilities called csplit. This tool allows you to split large text files at line numbers or use regex to split at pattern matches.
#DevOps #Linux #sysadmin #opensource

https://t.co/ZdMNGY5w6I

[Putorius Linux @CuriousPutorius]

This week's #Linux quick tip looks at how to use IP Sets and a #Bash script to create #iptables rules based on a host/domain name instead of an IP address. This is particularly handy for those who deal with Dynamic #DNS
https://t.co/Dda7dBYvbF
#sysadmin #DevOps #opensource

[Putorius Linux @CuriousPutorius]

Back to the old faithful #GNU Core Utilities... This week we examine using the Shred Command to securely delete files from your #Linux system.
https://t.co/AVQ3htxKTw
#DevOps #sysadmin #unix