Install NextCloud on Ubuntu 20.04 with Apache - Step by Step Process ?

This article covers how to Install NextCloud on Ubuntu 20.04 with Apache (LAMP Stack). You can now upload your files and collaborate with your team members on NextCloud. This way you have full control of your data.
Nextcloud, a fork of ownCloud, is a file sharing server that permits you to store your personal content, like documents and pictures, in a centralized location, much like Dropbox.
The difference with Nextcloud is that all of its features are open-source.
It also returns the control and security of your sensitive data back to you, thus eliminating the use of a third-party cloud hosting service.

To install Nextcloud on Ubuntu:

1. To download the Nextcloud snap package and install it on the system, type:

$ sudo snap install nextcloud

2. The Nextcloud package will be downloaded and installed on your server. You can confirm that the installation process was successful by listing the changes associated with the snap:

$ snap changes nextcloud

Install Gitlab on CentOS 8 - Step by Step Process ?

This article covers how  to setup Gitlab on CentOS Linux.

Gitlab is an application tool that is used for source code management. It allows you to plan your development process; code, and verify; package software, and release it with an in-built continuous delivery feature; automate configurations management, and monitor software performance.

To be able to access the GitLab interface you'll need to open ports 80 and 443. 

To do so run the following commands:

$ sudo firewall-cmd --permanent --zone=public --add-service=http
$ sudo firewall-cmd --permanent --zone=public --add-service=https
$ sudo firewall-cmd --reload

To install Postfix service to send notification emails, and enable it to start at system boot, then check if it is up and running using following commands:

# yum install postfix
# systemctl start postfix
# systemctl enable postfix
# systemctl status postfix

Setup Git Server on Ubuntu 20.04 - Step by Step process ?

This article covers how to install and configure a Git server on Ubuntu. Git is basically a Version control system which allows you to keep track of your software at the source level. With Git, You can easily track changes, revert to previous stages, and branch to create alternate versions of files and directories.

To install Git on Ubuntu Server:

1. Run the following commands as sudo user:

$ sudo apt update && sudo apt install git

2. To install the git package on CentOS servers type:

$ sudo yum install git

3. Next, create a new user that will manage the Git repositories:

$ sudo useradd -r -m -U -d /home/git -s /bin/bash git

The user home directory is set to /home/git

All the repositories will be stored under this directory.