Installing Cockpit

For installing this web server please ise the following command

apt install cockpit -y

Start the Cockpit service using the systemctl utility. To run the service Cockpit you can use the systemctl utility

systemctl start cockpit

For checking the Cockpit servise work you can use the following commang

systemctl status cockpit

Further configuration: working with the Firewall

The next important step is to configure the UFW to enable the Cockpit web interface (TCP port is designated 9090). This can be done with the following command:

ufw allow 9090/tcp

Then you need to open access to the Cockpit web console. To do this, you need to open the web console in your browser and then make changes to example_IP to your IP address of the virtual server

http://example.com:9090

This completes the Cockpit setup and installation.

First stage before updating

First, update your Ubuntu

apt upgrade

Then restart your server

reboot

Next, do the following:

apt update && sudo apt upgrade -y

After that, you need to remove unused packages and kernels to free up space in your /boot partition

apt --purge autoremove

Then you need to edit the update manager configuration file. This can be done as follows:

nano /etc/update-manager/release-upgrades

Find the line starting with Prompt =. Make sure it is not commented out and the lts value matches the one shown:

Prompt=lts

Running Updates

First, we recommend checking the backups again. Then run the update tool on your Ubuntu, then enter Y

do-release-upgrade

Then follow the instructions that you see in your terminal and click carefully. This will be followed by the removal of packages, with which you must agree by clicking on Y

Additional IP price is $ 3

Next, to set up an alternate IP address in Debian and Ubuntu, follow these steps:

Log into your VPS using SSH. As the root user, open the /etc/network/interfaces file in your preferred text editor. Then add the following text to the file:

# The primary network interface
auto eth0:0
iface eth0:0 inet static
address xxx.xxx.xxx.xxx
netmask 255.255.255.0

Next, replace xxx.xxx.xxx.xxx with the new IP address that you want to add to your VPS. Then save the changes in the same /etc/network/interfaces file and then exit your text editor. To restart the network interfaces on your server, you need to run the command:

ifdown -a --exclude = lo; ifup -a --exclude = lo

To verify that the procedure completed successfully, enter the following command:

ifconfig

The new IP address must be associated with interface eth0.

From the list of services, you must select the server you want to change the password

In the selected vps server service, you need to go to VMMANAGER

After, go to the “Virtual Machines”

Then, click to the Password option

After you choose Password you can enter a new password, then confirm it. We recommend that you use the most complex password, as well as use the option “Generate a password” which you will see to the right of the first line “New password”

Done! You password was successfuly changed.

The first step is to go to your account, log in and go to the orders page. If you do not currently have active virtual server services, you can familiarize yourself with tariff plans and order a suitable server here.

Next, you need to find the required server and go to the “OS” section

By clicking on this section, you will see a link to your own VMmanager. Then you need to go to her

After you have opened the VMmanager section, you should go to the “IP Addresses” section. If you have additional IPv4 addresses, then you will be shown there all the currently available IPv4. At the moment, the interface IPv4 address will be changed.

After that, click on the required IPv4 address and click on “Edit“

By default, the following entry is set on all VPS

vps.hostry.com

You need to enter your desired PTR record value in the “Domain” line, then click on “OK“

In order to clearly show, the entry has been changed

example.hostry.com

After 3 minutes, the PTR record was successfully changed. You can check it at the link

https://dnschecker.org/

You can also check this with the following command:

nslookup -type=PTR your _IP_address

Lscpu Command

lscpu is a very handy and simple program that allows you to get all the information you need regarding Linux processor architecture. Login to your terminal and enter the following command:

lscpu

The Architecture field shows what type of CPU you have. Here x86_64 stands for 64-bit. CPU operation mode – 32-bit and 64-bit. This means your processor supports both 32-bit and 64-bit instructions.

Uname Command

Uname provides information about your Linux system and kernel version. Run the following command to get CPU information using the uname command. This can be done as follows:

uname -m

If you have a 64-bit system, then the output will be as follows:

x86_64

Lshw Command

Lshw is a simple command to display information about the hardware of your Linux system. You can get information about the Linux processor by running the following command:

lshw -c cpu

The output will be as follows:

A graphical interface is a kind of unique opportunity for simple work and management of all files and multimedia. It is very convenient to use it, because it can be used by people with any skills: both with beginners and technically advanced.

This interface allows the user to interact with electronic devices using graphic icons.

Using the GUI, you have access to a unique and very understandable way to navigate and interact with the computer. Also, the graphical interface allows you to simplify the creation of websites without skills in the field of HTML, CSS, JavaScript

Installing GUI on Linux

To install the graphical user interface on the Linux operating system, you need the following actions:

Go to the list of your services: https://hostry.com/orders/  and select the desired virtual server where you want to install the GUI. If you do not have a server, you can order it right now by clicking on the link: https://hostry.com/products/vps/

You need connect to your VPS – by following this links below:

It is necessary to log in and register the following commands:

UBUNTU

apt update
apt install xfce4
start

DEBIAN

apt-get update
apt-get install xfce4 -y
apt-get install xfce4-goodies -y

CENTOS

yum update 
yum -y group install "CNOME Desktop" "Graphical Administration Tools" 
ln -sf /lib/systemd/system/runlevel5.target /etc/systemd/system/default.target 

After successful installation, you will have a GUI panel, where you can quickly and easily manage your data from a computer!

For ubuntu and debian

For centos

In order to connect to a remote server via SSH, please perform the following steps:

If you are Linux/MacOS user:

Open the terminal application

Type the following command:

ssh username@ipaddress

In case you are trying to connect to the server at the first time, you will get the following output:

The authenticity of host servername (server_IP) can’t be established. RSA key fingerprint is a9:bb:55:35:86:xx:xx:00:xx:00:2b:2c:79:10:96:3c. Are you sure you want to continue connecting

In order to proceed with connection, type  the word ‘yes’, then insert your password. Done! Now you are connected to your remote server via SSH.

If you are Windows user:

Download SSH client, as an example, PuTTY

Start putty.exe and enter the following connection details in the Sessions category:

• Host Name (or IP address) – here you should enter the host/IP to which you wish to connect;
• Port – the port for the connection – by default, SSH is running on 22 TCP port;
• Protocol – here you should select SSH.

Once you enter the correct connection data, click on Open button. There will open another window asking for your login and password. Enter your login credentials and press enter.

To go to your personal VNC you need:

Go to the list of your services and select the desired vps server. If you do not have an ordered vps server, you can order it here: https://hostry.com/services/vps/

You must click on the selected and installed your operating system

Then You need Forward to VMMANAGER

After, you need to click on the selected virtual server and go to VNC

Connection via VNC session

Creating an SSH key on Linux

First, open the terminal (command line) app, then run the following command to generate a 4096 bit SSH key:

1. Login into your virtual machine via VNC or PuTTY or via SSH.
2. Insert into the command line the following command:
   ssh-keygen -b 4096
   The command will output the following result and prompt you to save the newly created key.
3. In order to view the generated SSH-key, input the following command:
   cat .ssh/id_rsa.pub

PuTTY is a popular SSH client for Windows. You can use it to remotely connect to a Linux server. Its companion software, PuTTYgen, can be used to create SSH keys.
First, download the PuTTYgen software, which we will use to generate the key.
Next, run the software and select RSA as the key type, enter 4096 as the number of bits to generate, and then click the GENERATE button.

Click the Save private key button and select a secure location to keep it. You can name your key whatever you’d like, and the extension .ppk will be automatically added.

Insert your SSH key into VM-manager panel.

At first, please login into your HOSTRY member area. Then access your VM-manager account:

Then go the SSH Keys section. Click on the SSH keys Add icon

Insert your public key into the text box and give it a name, then click on a Save button:

Done. The public key is added!