linux 🐧

Unlock the full potential of Linux with tutorials covering everything from basic commands to advanced system administration. Our "Linux" tag includes guides on system setup, configuration, troubleshooting, and optimization, ideal for beginners and seasoned users aiming to enhance their proficiency in the Linux environment.

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Mosh Server as an SSH Alternative.

Indeed, even with a robust internet connection, SSH can sometimes prove unreliable. This is due to the fact that even brief interruptions in the connection between the client and server can lead to complete stalls, forcing you to terminate and re-establish the connection.

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GHOST CMS: backup and restore ⏤ Self-hosting.

We’ve talked a lot about security… but one of the most overlooked aspects of running a website is having a backup. You must take all necessary precautions to ensure that your website is regularly and safely backed up.

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How to automatically Backup Your Files to a Remote Server with Rsync.

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tips

[TryGhost/Ghost] ECONNREFUSED ::1:3306

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Connecting to Wi-Fi through CLI on macOS.

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How to Disable motd-news. (Ubuntu)

MOTD is the abbreviation of "Message Of The Day", and it is used to display messages when a remote user logs in to the Linux Operating system using SSH. According to /etc/update-motd.d/50-motd-news file the system sends a request to your Ubuntu server containing information about

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Add Multiple IP Addresses into One Single Network Interface. (Server)

Adding an additional; secondary or third IP is a thing to think of when you are a Linux system administrator. Some of you may be curious as to why we would allocate numerous IP addresses to a single network card...

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How to Set up Gmail SMTP Server on Ghost CMS.

Sending transactional emails from a self-hosted Ghost instance requires you to configure the mail manually. Transactional emails refer to emails containing password resets, member invitations, signup and login links.

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How to Completely Remove Snap on Ubuntu server.

issues 🛠

Glances Web UI shows a blank page on Ubuntu 22.04

Here’s the error: After upgrading to Ubuntu 22.04, Glances Web UI shows a blank page on any browser. What is happening and how can you remediate it? Glances packages for Ubuntu 21.10 and 22.04 are different of course but the filelist for the latter does not

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issues 🛠

Issue: Logrotate Error because Parent Directory has Insecure Permissions.

tips

Who is currently connecting to your VPN server?

This is the eleventh in a series of posts featuring Protips, tips, tricks, hacks, and secrets provided by Our Team 🙊 — We want to share our top tips for the growing and thriving Linux community out there. Because sometimes you need a little help...

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Throw Insults when a user type the wrong password.

The SUDOERS file includes a fun hidden gem within the default sudo security policy: the “insults” feature. When enabled, this option causes sudo to throw humorous or sarcastic insults at users each time they enter an incorrect password. By default, this flag is turned off.

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What are Zombie processes and how get rid of them?

You may have seen zombie processes shambling around your processes list. A Zombie process is called as such because it’s already dead. You know... ZOMBIE.

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How to Clear Buff/Cache in Linux?

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Nmap: the powerful Network Mapper.

Nmap (Network Mapper) is one of the if not the most famous free and open source scanning/ probing tools used by penetration testers and hackers for port scanning, network mapping, and, of course, vulnerability checks. Nmap is so popular, that it's been featured in the movie The Matrix. 😎

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How to change the default text editor in Debian.

There is a never-ending argument among Linux users over which text editor is the best when it comes to text editors. Well, after your choice is personal; I've seen folks sticking to a single editor while others use 3 to 4 at the same time. It all depends

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Systemctl daemon-reload.

A unit in Systemd is a systemd object that performs or controls a particular task or action. Systemd uses units to start/stop/manage services, organize boot process, maintain tasks and processes, create sockets, mount file-system, and initialize hardware.

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Systemd journal?

When Systemd replaced traditional SysVinit scripts it introduced its own logging system called journal. Running based services such as syslog ,Rsyslog are no longer needed as all system events are written in the journal.

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Query the systemd Journal?

journalctl is a utility for querying and displaying logs on systemd, kernel and journal on journald written by systemd-journald.service. See our previous post on Systemd journal. Working with journalctl command 1. All logs When run without any parameters, the following command will display all the logs in the paginated

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How to change Sudo Session's Time Limit.

The sudo command allows us to securely perform great administrative tasks. However, after some time running a command with sudo, will prompt for a password. Because of the 15 minutes grace period; your sudo session has by default. When the 15 minutes are out, you’ll be forced to reenter

linux 🐧

APT vs Snap: What the, what the hell ...

In Linux, package managers are software tools that assist users in searching, downloading, installing, removing, and updating software packages on their system and can be accessed by either Command-Line or through a Graphical User Interface application. There is a variety of package managers to choose from, including dpkg (Debian Package

linux 🐧

Mail Terminology.

Client and server components There are different components involved in an email transmission from sender to recipient. MUA (Mail User Agent) Client application that allows receiving and sending emails. It can be a desktop application such as Microsoft Outlook/Thunderbird/… or web-based such as Gmail/Hotmail/… (the latter is also

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How to install Fing on Ubuntu Debian Servers.

The Fing Command Line Interface (Fing CLI) is a standalone program that provides a set of very handy network troubleshooting tools (NIC information, scan, ping, traceroute, and so on). Installation The software has been packed using Debian (DPKG) and Read Hat (RPM) package manager. Below is the Architecture supported: • i686

tips

How to Remove/ Disable Zsh History' Commands on Linux.

This is the ninth in a series of posts featuring Protips, tips, tricks, hacks, and secrets provided by Our Team 🙊 — We want to share our top tips for the growing and thriving Linux community out there. Because sometimes you need a little help...