In this week’s feature highlight, we look at How to Install Docker On Ubuntu 22.10
What is docker?
Docker is basically a container engine that uses the Linux Kernel in order to create containers on top of an operating system. Which is used to create, deploy and run the applications.
Install Docker
Install the docker using the apt package manager.
apt install docker.io docker-compose
Start and enable the docker
systemctl enable --now docker
Check Docker service
systemctl status docker
Output:
root@crown:~# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; preset: enabl>
Active: active (running) since Mon 2022-10-17 13:59:05 UTC; 52s ago
TriggeredBy: ● docker.socket
Docs: https://docs.docker.com
Main PID: 5778 (dockerd)
Tasks: 8
Memory: 22.6M
CPU: 358ms
CGroup: /system.slice/docker.service
Create a group called docker,
groupadd docker
To add a user to the docker user group
usermod -aG docker $USER
If you want to add a different user, replace $USER with an existing username.
Check the docker version,
docker --version
Output:
root@crown:~# docker --version
Docker version 20.10.16, build 20.10.16-0ubuntu1
Test docker using the hello-world container.
docker run hello-world
Output:
root@crown:~# docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
In this week’s feature highlight, we look at How to Install Webmin on Ubuntu 22.10
Webmin is a web-based dashboard that allows sysadmins to manage Linux and Unix-like systems (especially servers). Webmin allows system administrators to manage user accounts, update packages, system log files, configure firewalls, email, database, postfix, etc.
Webmin install complete. You can now login to https://vps.server.com:10000/
as root with your root password, or as any user who can use sudo
to run commands as root.
In this week’s feature highlight, we look at How to Install Gitea on Ubuntu 22.10
Gitea is an open-source forge software package for hosting software development version control using Git as well as other collaborative features like bug tracking, wikis, and code review. It supports self-hosting but also provides a free public first-party instance hosted in China on DiDi’s cloud.
Prerequisites
Full SSH root access or a user with Sudo privileges is required.
Gitea supports the following databases.
SQLite
PostgreSQL
MySQL
MariaDB
In our guide below, we’ll use SQLite as the database for Gitea. You can pick any of the supported databases in your installation as needed.
Gitea is a painless self-hosted Git service. With features similar to ones in GitHub, Bitbucket, or GitLab. Git is the standard for distributed version control systems and can be installed on Ubuntu systems using apt.
Check for system updates and install them.
apt update
apt upgrade
Install the Git package using the following command,
apt install git
You can check the version of Git installed with the following command,
root@crown:~# systemctl enable --now gitea
Created symlink /etc/systemd/system/multi-user.target.wants/gitea.service → /etc/systemd/system/gitea.service.
To check the status of the Gitea service,
systemctl status gitea
Output:
root@crown:~# systemctl status gitea
● gitea.service - Gitea (Git with a cup of tea)
Loaded: loaded (/etc/systemd/system/gitea.service; enabled; preset: enabled)
Active: active (running) since Thu 2022-10-20 18:23:42 UTC; 15s ago
Main PID: 14144 (gitea)
Tasks: 8 (limit: 2227)
Memory: 129.4M
CPU: 1.190s
CGroup: /system.slice/gitea.service
└─14144 /usr/local/bin/gitea web --config /etc/gitea/app.ini
Configure Gitea
If you’re running ufw firewall on your server, allow the port 3000
At the time of writing this article, the latest Gitea version is 1.17.3 If there is a newer version available on the link above, change the VERSION variable before using the following command.
Elevate Your Development Game with Node.js: A Beginner-Friendly Guide to Installing on Ubuntu 22.10
Login to the Ubuntu 22.10 server.
Install stable nodejs from the Ubuntu repository by running the following command.
apt install nodejs
Output:
root@crown:~# apt install nodejs
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
libevent-pthreads-2.1-7 libmecab2 libprotobuf-lite23 mecab-ipadic
mecab-ipadic-utf8 mecab-utils
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
libc-ares2 libnode108 nodejs-doc
Suggested packages:
npm
The following NEW packages will be installed:
libc-ares2 libnode108 nodejs nodejs-doc
0 upgraded, 4 newly installed, 0 to remove and 1 not upgraded.
Need to get 15.0 MB of archives.
Then check the version of the nodejs once the installation is done.
node --version
Output:
root@crown:~# node --version
v18.7.0
Installing a different version of Node.js from the source
root@crown:~# wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash
=> Downloading nvm from git to '/root/.nvm'
=> Cloning into '/root/.nvm'...
remote: Enumerating objects: 264, done.
remote: Counting objects: 100% (264/264), done.
remote: Compressing objects: 100% (230/230), done.
remote: Total 264 (delta 31), reused 100 (delta 24), pack-reused 0
Receiving objects: 100% (264/264), 116.37 KiB | 5.54 MiB/s, done.
Resolving deltas: 100% (31/31), done.
Note: switching to '7ad6d98cedde01809e32d56ab8ced064f6f28175'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.
If you want to create a new branch to retain the commits you create, you may
do so (now or later) by using -c with the switch command. Example:
git switch -c <new-branch-name>
Or undo this operation with:
git switch -
Turn off this advice by setting config variable advice.detachedHead to false
=> Compressing and cleaning up git repository
=> Appending nvm source string to /root/.bashrc
=> Appending bash_completion source string to /root/.bashrc
=> Close and reopen your terminal to start using nvm or run the following to use it now:
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion
Update your shell ~/.profile by running following command
source ~/.profile
Next, Check if NVM is installed or not by checking for its version.
nvm --version
Output:
root@crown:~# nvm --version
0.33.8
List out all available Node.js versions. you can see all Node.js versions from the first version to the latest version.
In this week’s feature highlight, we look at How To Install Answer Q&A Community Software on Ubuntu 22.04
Answer is a open-source knowledge based community software. You can use it to quickly build your Q&A community for product technical support, customer support, user communication, and more.
mkdir answer && cd answer
wget https://raw.githubusercontent.com/answerdev/answer/main/docker-compose.yaml
docker-compose up
Reboot the docker by running the following command,
systemctl restart docker
You can now navigate to your browser to the URL http://yourserver-ip-address:9080 and you will see the Answer Q&A Community Software installation screen.
Replace “yourserver-ip-address” with the actual IP Address of your server
Choose the language
Config database
Note – Answer supports MySQL, PostgreSQL, and SQLite as the database backend.
If you are testing Answers for the first time, you can go ahead with sqlite it does not require any additional configuration.
Enter the basic information
Complete
Running Answer in the background with Docker
To start Answers in the background (detached mode), you can use the following command.
Hello, In this week’s feature highlight, we look at How to Install Netdata on Ubuntu 22.10
Netdata is an Open Source real-time server monitoring tool. It collects real-time data like CPU usage, RAM usage, Load, SWAP usage, Bandwidth usage, Disk usage, etc.
Update the Server
Update the server using the following command.
apt update
Downloading the Netdata package
Now you can proceed further to install the Netdata on the server. Run the following command on the server.
apt install netdata -y
The -y is use for the confirmation which will be prompted by the installer.
Netdata configuration file
We need a small change in the configuration file.
nano /etc/netdata/netdata.conf
The configuration file will look like this
[global]
run as user = netdata
web files owner = root
web files group = root
# Netdata is not designed to be exposed to potentially hostile
# networks. See https://github.com/netdata/netdata/issues/164
bind socket to IP = 127.0.0.1
By default the bind socket to IP is set to 127.0.0.1. To access the dashboard using the IP address, you need to replace the 127.0.0.1 with your server IP address.
[global]
run as user = netdata
web files owner = root
web files group = root
# Netdata is not designed to be exposed to potentially hostile
# networks. See https://github.com/netdata/netdata/issues/164
bind socket to IP = <Enter your IP address here>
Now save the file and restart the netdata service using the following command.
systemctl restart netdata
Firewall
If the firewall is enabled, then allow the port using the following command.
ufw allow 19999
Netdata Dashboard
Enter the following URL on the browser to access the Netdata dashboard. By default netdata works on 19999 port.
In this week’s feature highlight, we look at How to Install Linux kernel 6.0 on Ubuntu 22.10
Kernel is central component of an operating system that manages operations of computer and hardware. It basically manages operations of memory and CPU time. It is core component of an operating system. Kernel acts as a bridge between applications and data processing performed at hardware level using inter-process communication and system calls.
Step 1 – Update your system
First, Update the system packages to the latest versions using the below apt commands,
apt update
apt upgrade
Install some of the packages required for the Kernel upgrade,
apt install gcc make perl wget
Step 2 – Installing Linux Kernel 6.0
By default on Ubuntu 22.10, The kernel version it ships with is version 5.19
Linux Kernel 6.0 is not available on Ubuntu 22.10 base repository. So we will manually download the required Linux Kernel packages from the official site and install.
You can check their official site for a list of available kernel versions that can be installed, kernel.ubuntu.com.
At the time of writing this article, version 6.0.9 was the only latest kernel we could install with.
If you find any newer versions that can be installed, please go ahead with it.
Some points to note, for selecting a different version of kernel. Open the site kernel.ubuntu.com and scroll to the bottom of the page. Find a version whose builds are successful, under that, navigate to “amd64” folder. You will find the required four files to download on the ubuntu system, Linux Headers, Linux Image and Linux Modules. A successful build looks like below:
Now, install the downloaded files using the dpkg command as shown below,
Ensure that there are no other .deb files apart from the ones that were downloaded. If there are any other .deb files, recommended to remove them before proceeding.
dpkg -i *.deb
After installing the Linux Kernel 6.0, reboot the system to run the new Kernel
reboot
Step 3 – Verify the Kernel version
To verify the kernel installed and running after the reboot, use the uname command as shown below,
uname -r
Output:
root@vps:~# uname -r
6.0.9-060009-generic
This concludes the topic of installing the latest version of Kernel on a Ubuntu System.
Greetings, As part of our commitment to provide you with the latest and most ready-to-use service, we’ve updated the following templates for CentOS 7, CentOS 8-Stream, and CentOS 9-Stream.
This template update process ensures that any new VPS deployed will come along with the latest available packages so you don’t have to spend time running a large initial update.
As always, any existing VPS can be updated at any time by the user, you may follow our guide for the steps required to update your VPS, Click here.
If you require any assistance at any time, please feel free to contact our support team via the client area and we’ll help you out.
As part of our commitment to providing you with the latest and most ready-to-use service, we’ve updated our AlmaLinux Templates for AlmaLinux 8 and AlmaLinux 9.
This template update process ensures that any new VPS deployed will come along with the latest available packages so you don’t have to spend time running a large initial update.
As always, any existing VPS can be updated at any time by the user, you may follow our guide for the steps required to update your VPS, Click here.
If you require any assistance at any time, please feel free to contact our support team via the client area and we’ll help you out.
As part of our commitment to providing you with the latest and most ready-to-use service, we’ve updated the Rocky Linux Templates for Rocky Linux 8 and Rocky Linux 9.
This template update process ensures that any new VPS deployed will come along with the latest available packages so you don’t have to spend time running a large initial update.
As always, any existing VPS can be updated at any time by the user, you may follow our gfuide for the steps required to update your VPS, Click here.
If you require any assistance at any time, please feel free to contact our support team via the client area and we’ll help you out.
