Linux Inside: The Ideal Blog for Sysadmins & Geeks

@tecmint

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 14

We just launched TecMint Pro – a way to support what we do. For a limited time, you can get lifetime access for $99, or go yearly at only $50. Here’s what you get: 📚 All 8 Linux eBooks (worth $200) 🎓 Full premium tutorials & courses 🚫 No ads 👉 pro.tecmint.com

tecmint's tweet card. Tecmint Pro offers exclusive Linux guides, eBooks, and premium content for system admins and DevOps professionals.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · 12 h

In Chapter #10 of the LFCS certification, understand the difference between terminals and shells, and start writing your own shell scripts. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/understanding-… Follow @Tecmint for more #Linux tips and #ShellScripting guides!

tecmint's tweet card. In this chapter, you’ll learn how Linux terminals and shells work, and how to write your first shell scripts using bash.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · 15 h

In Chapter #9 of the LFCS certification, learn how to manage software in Linux using package managers like apt, yum, and dnf. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/linux-package-… Follow @Tecmint for more #Linux and #SysAdmin tips!

tecmint's tweet card. In this chapter, you'll learn how to install, update, and remove software packages in Linux using tools like apt, yum, dnf, dpkg, and rpm.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · 17 h

In Chapter #8 of the LFCS certification, learn how to manage users and groups, assign permissions, configure sudo access, and secure your Linux system with PAM modules. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/manage-users-g… Follow @Tecmint for more #Linux tips!

tecmint's tweet card. In this chapter, you’ll learn the essentials of user account creation, group-based access control, sudo privilege assignment, and securing Linux with PAM and special file permissions.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · 18 h

🧠 How to Trigger and Fix a Linux Kernel Panic (Beginner-Friendly Guide) Learn what causes kernel panics, how to simulate one safely, and how to fix it step by step. Troubleshooting starts here 👇 👉 tecmint.com/fix-kernel-pan… Follow @tecmint for more practical #Linux guides! 🐧

tecmint's tweet card. Learn how to simulate, diagnose, and fix Linux kernel panic errors with this hands-on guide written for beginners and enthusiasts.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · 19 h

Learn how to set up a local APT mirror on #Ubuntu using apt-mirror – perfect for offline systems & saving bandwidth. 👉 tecmint.com/setup-local-re… Follow @tecmint for more #Linux admin tips!

tecmint's tweet card. In this article, you’ll learn how to set up a local Ubuntu repository using apt-mirror to save bandwidth and speed up package installs.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 21

In Chapter #7 of the LFCS certification, learn the Linux boot process from BIOS/UEFI to GRUB, systemd, runlevels, and service management. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/linux-boot-pro… Follow @Tecmint for more #Linux and #SysAdmin insights!

tecmint's tweet card. In this chapter, we take you on a deep dive into the Linux startup process, covering POST, bootloaders, kernel initialization, runlevels, targets, and logging with journalctl

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 21

In Chapter #6 of the LFCS certification, learn how to set up Software RAID on Linux using mdadm. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/setup-software… Follow @Tecmint for more #Linux tips

tecmint's tweet card. In this chapter, you'll learn how to configure software RAID using mdadm, monitor array health, and create reliable full-system and file-level backups using tools like dd, tar, and rsync.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 21

mkcert - the easiest way to create trusted SSL certificates for local development! No more browser warnings. No more self-signed headaches. 👉 tecmint.com/mkcert-create-… Follow @tecmint for more #Linux tips! 🐧

tecmint's tweet card. In this article, you'll learn how to use mkcert to generate locally trusted HTTPS certificates for local development environments in Linux.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 20

10 Must-Know Linux Commands You Probably Missed – Part 4! From smarter background jobs to real-time system stats and secure file deletion, these hidden gems will boost your Linux productivity. 🐧💡 👉 tecmint.com/secret-linux-c… Follow @tecmint for more expert #Linux tips!

tecmint's tweet card. These hidden Linux commands are really helpful and can make your work in the terminal easier and faster once you start using them.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 19

Master keyboard monitoring in Linux with LogKeys – the powerful keystroke logger! 👉 tecmint.com/logkeys-monito… Follow @tecmint for more practical #Linux tips & tools.

tecmint's tweet card. LogKeys is an open-source keylogger for Linux that captures and logs keyboard input, including characters, function keys, and special keys.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 19

Brush up on your Linux skills with 15 common interview questions! Easy-to-understand answers included. 👉 tecmint.com/linux-intervie… Follow @tecmint for more cool #Linux content!

tecmint's tweet card. We’re here with 15 more carefully chosen questions and answers to help you improve your Linux skills and feel more confident during interviews.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 18

🚀 Big News! We’ve just published the full RHCSA and RHCE courses and released separate eBooks for both! ✅ 45+ chapters combined 📘 Available exclusively for Pro Members 📥 Download now: pro.tecmint.com/ebooks/ #RHCSA #RHCE #Linux #DevOps #SysAdmin

tecmint's tweet card. Get Tecmint Pro’s premium Linux eBooks to boost your skills, learn commands, and crack top certifications with ease.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 17

In Chapter #5 of the LFCS certification, learn how to mount and unmount local and network filesystems in Linux. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/mount-unmount-… Follow @Tecmint for more #Linux and #SysAdmin essentials!

tecmint's tweet card. In this chapter, you'll learn how to mount and unmount local filesystems in Linux using the mount and umount commands, including how to troubleshoot common errors like "device is busy".

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 17

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 17

Learn how to parse, extract, and rewrite configuration files using awk and sed 👉 tecmint.com/edit-configura… Follow @tecmint for more #Linux tips.

tecmint's tweet card. In this article, you’ll learn how to use sed and awk to parse, edit, and automate changes in Linux configuration files with simple examples.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 16

In Chapter #4 of the LFCS certification, learn how to partition storage devices using fdisk and gdisk, format filesystems like ext4, and configure swap space on Linux. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/linux-partitio… Follow @Tecmint for more #Linux tips

tecmint's tweet card. Learn how to partition storage devices using fdisk and gdisk, format filesystems like ext4, and configure swap space in Linux.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 16

In Chapter #3 of the LFCS certification, learn how to archive files using tar, gzip, and xz, and manage file permissions with chmod, chown, and find. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/linux-archivin… Follow @Tecmint for more #Linux tips!

tecmint's tweet card. In this chapter, learn how to archive and compress files using tar, gzip, and xz, and manage Linux file permissions with chmod, chown, and find commands.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 16

Make sudo insult users for wrong passwords in Linux – just for fun (or discipline)! 😂 👉 tecmint.com/sudo-insult-wh… Follow @tecmint for more #Linux hacks and sysadmin tips!

tecmint's tweet card. In this article, we will explain how to set a sudoers insult parameter for the sudo command to insult system users when they enter an incorrect password.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 16

This step-by-step guide shows you how to add an extra layer of protection to your SSH logins. 👉 tecmint.com/ssh-two-factor… Follow @tecmint for more practical #Linux security tips!

tecmint's tweet card. The Google Authenticator is an open-source module that includes implementations of one-time passcodes (TOTP) verification tokens developed by Google.

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Linux Inside: The Ideal Blog for Sysadmins & Geeks@tecmint · Jul 16

In Chapter #2 of the LFCS series, learn the basics of the Vi/Vim command-line text editor 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/learn-vi-vim-t… Follow @Tecmint for more #Linux and #CommandLine tips!

tecmint's tweet card. In this chapter, we show you how to start using Vi or Vim in any Linux system, covering installation, command modes, editing, saving files, and more.

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