Posts by Tag

Linux

Saving Permissions for Files and Directories

1 minute read

Archiving permissions for files and directories can often prove to be a valuable practice, especially in scenarios where system configurations or access requ...

Exploring the Lesser-Known Command: lastb

2 minute read

In the realm of Unix-like operating systems, particularly Linux, there exists a wealth of commands that cater to various administrative needs, ranging from m...

Linux Command History: An Introduction

2 minute read

In the vast realm of Linux, mastering the command line is a valuable skill that empowers users to navigate, control, and customize their systems with precisi...

How to Automatically Add odd_or_even in a Loop

1 minute read

When working with Ruby loops, there may be times when you need to distinguish between odd and even elements. While you can utilize the ActiveSupport cycle he...

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linux

Ansible loops - howto control loops

2 minute read

Ansible, a powerful automation tool, empowers system administrators and DevOps engineers to streamline their infrastructure management tasks. One of Ansible’...

Working with ansible loops

1 minute read

Ansible provides various loop constructs that allow you to iterate over lists, dictionaries, and other data structures. Loops are useful for performing repet...

Less Known Bash Variables

2 minute read

Bash, the popular command-line shell for Unix-like systems, offers a wide range of variables that provide control and customization options for your shell en...

How to Check if a Variable is Defined in Ruby

less than 1 minute read

Sometimes, it’s necessary to check whether a variable is defined or not in your Ruby code. In this section, we will explore two common approaches to accompli...

How to List Files in a Directory with Ruby

1 minute read

Often, you may need to obtain a listing of files from a specific directory for your administrative tasks or scripts. Fortunately, it’s quite simple to accomp...

Ways to Find Your Ubuntu Version

less than 1 minute read

Have you ever forgotten which Ubuntu version you are using? If that’s the case, here are some methods to check the Ubuntu version currently running on your s...

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howto

How to Check if a Variable is Defined in Ruby

less than 1 minute read

Sometimes, it’s necessary to check whether a variable is defined or not in your Ruby code. In this section, we will explore two common approaches to accompli...

How to List Files in a Directory with Ruby

1 minute read

Often, you may need to obtain a listing of files from a specific directory for your administrative tasks or scripts. Fortunately, it’s quite simple to accomp...

Ways to Find Your Ubuntu Version

less than 1 minute read

Have you ever forgotten which Ubuntu version you are using? If that’s the case, here are some methods to check the Ubuntu version currently running on your s...

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oracle

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ruby

How to Check if a Variable is Defined in Ruby

less than 1 minute read

Sometimes, it’s necessary to check whether a variable is defined or not in your Ruby code. In this section, we will explore two common approaches to accompli...

How to List Files in a Directory with Ruby

1 minute read

Often, you may need to obtain a listing of files from a specific directory for your administrative tasks or scripts. Fortunately, it’s quite simple to accomp...

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ansible

Ansible loops - howto control loops

2 minute read

Ansible, a powerful automation tool, empowers system administrators and DevOps engineers to streamline their infrastructure management tasks. One of Ansible’...

Working with ansible loops

1 minute read

Ansible provides various loop constructs that allow you to iterate over lists, dictionaries, and other data structures. Loops are useful for performing repet...

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loops

Ansible loops - howto control loops

2 minute read

Ansible, a powerful automation tool, empowers system administrators and DevOps engineers to streamline their infrastructure management tasks. One of Ansible’...

Working with ansible loops

1 minute read

Ansible provides various loop constructs that allow you to iterate over lists, dictionaries, and other data structures. Loops are useful for performing repet...

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kernel parameters

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kernel

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Oracle

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Security

Exploring the Lesser-Known Command: lastb

2 minute read

In the realm of Unix-like operating systems, particularly Linux, there exists a wealth of commands that cater to various administrative needs, ranging from m...

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OpenSSL

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windows

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ssh

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ssh-server

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ssh-keys

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fail2ban

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security

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fail2ban-series

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cpu

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sysinfo

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pfile

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spfile

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ora-01658

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ubuntu

Ways to Find Your Ubuntu Version

less than 1 minute read

Have you ever forgotten which Ubuntu version you are using? If that’s the case, here are some methods to check the Ubuntu version currently running on your s...

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bash

Less Known Bash Variables

2 minute read

Bash, the popular command-line shell for Unix-like systems, offers a wide range of variables that provide control and customization options for your shell en...

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Ruby

How to Automatically Add odd_or_even in a Loop

1 minute read

When working with Ruby loops, there may be times when you need to distinguish between odd and even elements. While you can utilize the ActiveSupport cycle he...

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Swap

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Ubuntu

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CPU

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Account Management

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Space Usage

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disk recovery

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command history

Linux Command History: An Introduction

2 minute read

In the vast realm of Linux, mastering the command line is a valuable skill that empowers users to navigate, control, and customize their systems with precisi...

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ORA errors

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ORA Errors

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ORA-

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OpenVPN

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Administration

Saving Permissions for Files and Directories

1 minute read

Archiving permissions for files and directories can often prove to be a valuable practice, especially in scenarios where system configurations or access requ...

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Spam

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Mail

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