Author

Omer Cakmak

Omer Cakmak

Linux Administrator

at · 134 articles published

Highly skilled at managing Debian, Ubuntu, CentOS, Oracle Linux, and Red Hat servers. Proficient in bash scripting, Ansible, and AWX central server management, he handles server operations on OpenStack, KVM, Proxmox, and VMware.

Areas of expertise

Author profile illustration for Omer Cakmak — technical writer at GoLinuxCloud

Articles by Omer Cakmak

linux

Downgrade Ubuntu to previous version?

Step by Step instructions to download Ubuntu to previous release

Omer Cakmak5 min read
linux

Learn Linux wheel group usage [With Examples]

Learn what is the significance of wheel group. Any user part of this group gets root level access so this should be used cautiously. Add or remove users from sudo wheel group.

Omer Cakmak5 min read
linux

How to ungzip or untar tar.gz file?

Learn how to untar tar.gz file and ungzip gz archive using gunzip tool.

Omer Cakmak7 min read
linux

Install LXD on Rocky Linux 9 [Step-by-Step]

Step by step instructions to install LXD on Rocky Linux 9

Omer Cakmak7 min read
linux

Exclude Users from Match Group in SSHD

In today's highly connected world, securing remote access to servers is of utmost importance. One of the most popular ways to establish secure remote

Omer Cakmak6 min read
linux

pkill -P $$ - Kill subprocess in Linux

pkill -P $$ is used to match only child processes of the given parent where $$ is the process of the current process

Omer Cakmak5 min read
system-administration

Upload file to Linux server from Windows

3 different methods to upload file to Linux server from Windows. Using SCP or PSCP CLI tool, or Using WinSCP and/or FileZilla which are GUI based tool

Omer Cakmak5 min read
linux

How do I install the Linux library libc.so.6

In this tutorial we learn how do I install the linux library libc.so.6. There are 3 possible scenarios: Library is not installed or missing, The library path is not configured so the application is unable to locate the …

Omer Cakmak5 min read
linux

Working with ulimit in Linux [Beginners Guide]

Complete ulimit tutorial to learn about modification of different system limits and configurations without reboot

Omer Cakmak8 min read
linux

Install Nagios XI on Rocky Linux 9

Two different methods to install nagios XI on ROcky Linux 9. Install latest or custom version by directly downloading from official page.

Omer Cakmak6 min read
linux

Install Eclipse IDE on Rocky Linux 9 [Step-by-Step]

Step by step instructions to install eclipse IDE on Rocky Linux 9

Omer Cakmak4 min read
linux

How to Install PowerISO on Linux [Step-by-Step]

Step by step instructions to install poweriso in Linux. Install PowerISO using GUI or Terminal manager in Ubuntu, Debian, Red hat, CentOS and any other distribution.

Omer Cakmak4 min read
linux

Install Maven in Rocky Linux 9

2 different methods to install latest maven package using system package manager or from downloading maven from official repository.

Omer Cakmak3 min read
linux

How to install Notepad++ in Linux? [SOLVED]

In this article, we will explain how to install Notepad++ on the Linux operating system.

Omer Cakmak4 min read
linux

How to PROPERLY kill process on Ubuntu?

In operating systems (Windows, Linux does not matter), things are managed as processes. These processes run for a certain time, some processes are terminated

Omer Cakmak6 min read
linux

How to install 32bit application with Wine?

Wine is a free application that enables Windows software to run on POSIX- compliant operating systems such as Linux and Mac OS X. Wine stands for "Wine Is Not

Omer Cakmak4 min read
system-administration

[SOLVED] Restrict FTP user to a directory in Linux

Use chroot_local_user to restrict FTP user to a directory in vsftpd.conf in Linux. You can specify the directory name and path which acts as home directory for chroot

Omer Cakmak6 min read
linux

How to install Conda on Ubuntu?

Conda is an open source (BSD licensed), language-independent package manager and environment management system that runs on different operating systems

Omer Cakmak6 min read
linux

How to update Flameshot in Ubuntu?

Step by Step instructions to update flameshot in ubuntu using default package manager or by downloading the latest flameshot archive from official reporsitory

Omer Cakmak3 min read
linux

Install FFprobe and FFmpeg on Ubuntu

Step by Step isntructions to install ffprobe and ffmpeg in Ubuntu using 3 different methods

Omer Cakmak3 min read
linux

Tips to download file From Linux [Practical Examples]

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Omer Cakmak6 min read
linux

Install GlassFish in Arch Linux [Step-by-Step]

Step by Step instructions to install glassfish on Arch Linux with Examples

Omer Cakmak5 min read
linux

How to Install Ubuntu on USB Drive? [100% Working]

Ubuntu is a popular open-source operating system that is widely used in the Linux community. One of the great features of Ubuntu is that it can be installed

Omer Cakmak3 min read
linux

How to PROPERLY disable IPv6 on Ubuntu? [SOLVED]

Today, operating systems also support ipv6. However, when ipv6 is not widely used yet, it may cause problems if it is active in the system. Therefore, it

Omer Cakmak5 min read
linux

/etc/network/interfaces missing in Ubuntu

If you are using Ubuntu, you must have encountered the "/etc/network/interfaces missing" error. Because Ubuntu 18.04 and above uses netplan to configure your

Omer Cakmak4 min read
linux

Install Oh My Zsh on Linux [Step-by-Step]

Step by Step instructions to install Oh My Zsh on different Linux distributions such as Ubuntu, Red Hat, CentOS, Debian, OpenSuSE, Arch Linux

Omer Cakmak4 min read
linux

Convert CentOS 8 to Rocky Linux 8

As you know, CentOS Linux 8 became the end of life on 31 Dec 2021. It will now continue its life as CentOS Stream 8. Many people/organizations using CentOS

Omer Cakmak5 min read
linux

bash: curl: command not found

The most common causes for bash: curl: command not found error is either curl package is not installed or the PATH variable does not contain the path to curl tool.

Omer Cakmak3 min read
linux

How to Enable Wake-on-LAN in Ubuntu 22.04? [SOLVED]

In this article we will tell you how to enable Wake-on-LAN in Ubuntu and example usage.

Omer Cakmak4 min read
linux

Could not resolve host: mirrors.rockylinux.org

3 possible solutions to Could not resolve host: mirrors.rockylinux.org and Failed to connect to mirrors.rockylinux.org port 443: Connection timed out

Omer Cakmak6 min read