Properly securing your Linux VPS hosting security will protect you from many online attacks. However, you must maintain constant vigilance over your virtual private server despite implementing the best security measures.

1. Protect Your Server from Attack with These 15 Tips for VPS hosting security
Properly securing your Linux VPS hosting security will protect you from many online
attacks. However, you must maintain constant vigilance over your virtual private server
despite implementing the best security measures.
For this reason, we shall investigate Linux's security flaws in greater detail. We'll also go
over 15 best practices for protecting your virtual server from cyber criminals as VPS hosting
security is more popular.
Within these lines, you'll find 15 suggestions for enhancing the safety of your VPS hosting
security.
1. Advise yourselves fully on the issue of web host security, specifically VPS hosting
security
Your chosen hosting provider must have a robust security setup and give additional
safeguards to ensure the safety of your server. We at M2host provide cutting-edge security
modules like mod security, firewall, Suhosin PHP hardening, and PHP open protection to
ensure the safety of our VPS hosting security.
To further strengthen VPS hosting security, it employs full-stack server protection and in-
built powerful DDoS mitigation. We provide Monarx anti-malware software on our shared
hosting servers.
If your website ever goes down, you can quickly and easily bring it back online with the help
of M2host's automated regular backups and live snapshots.
2. Modify the Default Secure Shell Port in VPS hosting security
Hackers will likely try to break into your virtual server if you're still using port 22 for SSH
connections. This is because hackers can easily gain remote access to the server by scanning
for open ports and launching brute-force attacks against them.
If you want to shield your information from hackers, you should switch to the SSH port.
To create a new SSH port, go through the following steps:
1 Fire up your Terminal and connect through SSH.
2. Simply run the appropriate command to edit the service configuration file and then
3. Look for the text "port 22" in the line.
4. Substitute 25 for 22, and delete #
5. Save your modifications and leave
6. Insert the command to restart the service
7. Try to access SSH again.
3. Turn off Admin Logins in VPS hosting security
The root user on a Linux VPS hosting security has the highest level of access. Cybercriminals
may target them.
So, to protect your server from brute-force attacks, you must turn off root logins. We also
suggest making a second user account that can issue commands at the root level.
To prevent root logins, do as follows:
1. Fire up Terminal and sign into your SSH account.

2. 2. The configuration file can be opened and edited with nano or vi by running the
corresponding command.
3. Locate the parameter and set it to "no."
4. After making the necessary edits choose "Save" and "Command" to restart the SSH
service.
5. The root login will be disabled as a result of this.
4 Make Sure You Have Robust Passwords in VPS hosting security
Insecure passwords include personal details or easily guessed phrases. Because of this, you
must make a lengthy, complex password containing various features like lower and upper
case letters, digits, and special characters. In this way, your system will be protected from
brute-force attacks.
Do not use the same password twice.
Online password generators like NordPass and LastPass are also useful. You can set
parameters for both, including how many characters can be used in a password or how long it
can be.
5. Make use of SSH keys in VPS hosting security
SSH passwords are vulnerable to sniffer attacks if you continue to use them. SSH keys should
be used. SSH keys, in essence, are a safer alternative to passwords for logging into a
computer system.
These keys are lengthier and more sophisticated than a password because they are generated
by computers and can be up to 4096 bits in length.
There are two types of SSH keys: public and private. The first type is kept on a remote server,
whereas the second is kept locally. The server will generate a random string and encrypt it
using a public key when it detects a login attempt. Only by employing the matching private
key can the encrypted message be read.
Creating an SSH key on a Linux server and how to use it
1 Launch a terminal program and connect to SSH.
Secondly, type the command and hit enter to create a pair of public and private keys.
3. When a response is displayed, press enter.
Four, you'll have to enter a passphrase twice if you lack it. Repeatedly pressing enter is ok.
5. You have successfully stored your private and public keys.
6. Erect a private network barrier (IP Tables) in VPS hosting security
Since HTTP traffic can originate from anywhere on the Internet, it is crucial to filter it so that
only trusted users can access your infrastructure. By doing so, you will be protected from
DoS attacks and other forms of unwanted traffic.
The tables firewall service is built into most Linux distributions. Tables are used by this
program to track the incoming and outgoing traffic on your server. Chains of rules are used to
sort through data packets coming in and leaving out.
It allows you to modify firewall settings to suit your specific requirements.

3. Learn how to set up tables on Ubuntu and verify its current settings:
1. Launch a terminal and connect via SSH.
2. Run the command to set up tables.
3. Once setup is complete, input the command and hit enter
4. All the regulations will be detailed once the output is complete.
7. Set up your UFW firewall in VPS hosting security
When managing the data that enters and leaves your system, we advise activating a simple
firewall (UFW). It is an approachable firewall based on the Netfilter protocol.
UFW is the graphical interface to the tables firewall and is typically pre-installed on Linux
distributions. Generally, it will only allow outgoing connections while blocking incoming
ones, making the system less vulnerable to attacks. The firewall's rules can also be
customized to meet individual needs.
Activating it on Ubuntu is as follows:
1. Launch the Terminal and establish an SSH connection
2. Enter a command to activate UFW
3. If the response says the command could not be found, try installing the firewall using the
command.
4. The second step is to enable UFW by running the corresponding command when the
installation is complete.
5. To use the command to see if the firewall is active.
8. Using SFTP Instead of FTP in VPS hosting security
The only thing encrypted while using FTP over TLS is the user's credentials, not the actual
file transmission.
Thus, your information may be at risk if you use both connections. Sniffing attacks are
simple for hackers to execute, giving them access to your login information and file transfers
without your knowledge.
Rather than risk it, go to SFTP or FTP over SSH. All information, including login passwords
and transferred files, is encrypted during this secure FTP connection. Further, since the SFTP
client requires server authentication before obtaining access to the system, it safeguards users
from man-in-the-middle assaults.
SFTP connections can be established in the following ways.
1. Launch the Terminal and connect through SSH.
2. entering this command and pressing enter three will start an SFTP connection.
3. An SFTP prompt will show up after you've successfully connected.
9. Get fail2ban setup in VPS hosting security
If an attacker repeatedly fails to log in, Fail2ban will ban them from the system. It also
prevents brute-force, dictionary, and denial-of-service attacks against servers. Fail2ban
blocks IP addresses using the tables and firewall utilities.
The fail2ban software package for Ubuntu 1 can be installed by following the
instructions below.
1. Launch an SSH session at a terminal

4. 2. Type the command and hit enter to install the fail2ban software suite.
3. The subsequent results will be displayed Enter
4. And then type Y. You can check the installation's progress by performing the command
5. Once it's complete. There must be a working instance of fail2ban running at all times.
10. Put on an antivirus program in VPS hosting security
Consider keeping tabs on the data kept on your in VPS hosting security in addition to
installing a firewall to restrict inbound traffic. Linux's lack of built-in virus protection leaves
your servers vulnerable to attacks that could compromise your data.
Therefore, installing antivirus software is a necessary step in strengthening your system's
defenses. Though there are several choices, clam AV stands out as the best. It's free and can
be used to filter out malware and undesirable data.
If you are using CentOS, you can install ClamAV by following these steps:
1. Launch a terminal and connect via SSH.
2. Execute this command to set up Extra Packages for Enterprise Linux (EPEL):
3. The entire set. When the output appears, you're all set with installing EPEL.
4. To delete all cached data, use the command and press Enter:
5. To run the command to set up Clam AV.
6. Keep your eyes peeled for a full. The installation of Clam AV should now be complete;
look for the completion message in the installation status line.
11 - Configure a Virtual Private Network on your in VPS hosting security
Someone will likely intercept your traffic and steal your data if you use a public network.
Avoid this situation by protecting your network with a virtual private network (VPN). The
VPN's IP address will be assigned to your system, hiding your location from the outside
world. Because your IP address will be concealed, you can surf the web in complete secrecy.
In a nutshell, a virtual private network safeguards your information and thwarts any attempts
by hackers to monitor or steal your data. Additionally, it complements a firewall to make
your VPS even more secure.
If you are using CentOS, you may install OpenVPN by following these instructions.
1. Launch a terminal and log into SSH.
2. Set up the net-tools package before putting it in OpenVPN.
3. Then, press the Enter key after typing the curl command to retrieve the OpenVPN bundle.
4. Install verification via printing and checking the checksum
5. The checksum will be printed in the output in the format below.
6. Use the checksum supplied on the page to verify the integrity of the downloaded binary.
With this command, you can begin setting up OpenVPN if the requirements are met.
7. After the setup is finished, you'll be given information on how to access the Admin UI and
the Client UI.
8. You should then use the command to create a password, as seen in
9. You'll need to re-enter your new password
10. Navigate to the screen via the Admin or Client UI.
11. Sign in using the OpenVPN username and password you just created.

5. 12. Look at the Rights of Users in VPS hosting security
VPS hosting security with several users requires careful thought about controlling it, and
permissions will be shared. You could expose your system's resources and private
information to potential abuse if you give everyone root access.
As a result, limiting access is necessary to safeguard the server. This can be achieved by
controlling who has access to which files and resources and at what degrees of access.
The Linux system privileges feature allows you to set permissions for individual users. Make
a collection of users who all have the same permissions.
Find out how to control who can do what with this Ubuntu guide on user and
permission management:
1. Fire up the Terminal and an SSH client.
2. Type in the group-creating command and hit Enter:
3. Then, type the command to make a new user
4. make sure to save your work before you exit the document.
5. Finally, issue the command to implement the modifications:
6. It should be used to give users full administrative privileges. Try to remember that this also
doesn't result in anything tangible.
7. On the other hand, this is the fundamental syntax for creating a directory and assigning it
to read/write permissions.
13. Extinguish IPv6 in VPS hosting security
Having IPv6 enabled leaves your VPS hosting security vulnerable to a wide variety of cyber
threats because of the security holes it creates. If you're not using it, turn it off completely.
IPv6 is a common route for hackers' malicious traffic. Thus leaving it unprotected can leave
your server vulnerable to a wide variety of threats. It's possible that some of your programs
have opened IPv6 listening connections even though you're not actively using IPv6. As a
result, they will process every single packet, including harmful ones.
When using Ubuntu, you can turn off IPv6 by following these steps:
1. Launch the Terminal and connect to SSH.
2. Enter the following command to turn off IPv6:
3. This will launch the configuration file. Include the text in the footer
4. Save and close the file
5. After that, you need to run this command to apply the modifications:
6. Type the following command and press Enter. If the value is 1, IPv6 has been correctly
turned off.
14 - Check the Server Logs Regularly in VPS hosting security
Keeping tabs on your server logs is essential if you want to maintain command of your VPS
hosting. Information about the server's history and current condition can be gleaned from
these logs, which can then be used in analysis and reporting.
If your server is under attack from hackers or any other type of security concern, you can
check the server logs to see what happened. The sooner these flaws are patched, the fewer
time attackers will have to steal sensitive information.

6. The /var/log folder is an essential part of your Linux system. It keeps track of log files that
record important data about the server's operating system, kernel, package managers, and
other programs.
To access the system logs on an Ubuntu server, open the /var/log directory as shown
below:
1. Launch Terminal and log in through SSH.
2. Execute the command to switch to the /var/log directory. Remember that there will be no
results from doing this.
3. Type the following command and press Enter to see a complete list of files
4. You can view the system logs by typing the following command and hitting Enter
15. Don't let your applications get stale by not updating them in VPS hosting security
Your VPS is more at risk if it runs outdated software. Developers often release updates and
security patches. Keep an eye out for new updates to your program, and ensure you run them
as soon as they become available.
How to install it on CentOS or RHEL:
1. Fire up the Terminal and an SSH client.
2. Run the command below to set up yum-cron
3. It is to activate the service by typing the command and pressing Enter. It's important to
remember that this will have no effect.
4. Once the service is installed, you can start it by running the command and hitting Enter.
Remember that this command will not result in a response.
5. Type the following command to see if the service is up and running:
6. To access the configuration file, type:
7 Change the value of "no" to "yes" on the corresponding line of the output. Don't forget to
save your work before closing the file.
Conclusion
Since your in VPS hosting security your data and software, you must take extra precautions
to ensure its safety.
Linux is widely regarded as a secure operating system, but even it contains security flaws that
you should be aware of. Malware, sniffer, brute-force assaults, SQL injections, cross-site
scripting (XSS), a lack of function-level control, and a lack of authentication are all examples
of common cyber-attacks and concerns.
This means VPS hosting security administrators need and monitoring expertise. Our team has
prepared 15 of the most useful safety guidelines to help you out.