FastDomain - Securing a Dedicated or VPS Server

FastDomain Web Hosting Help

Securing a Dedicated or VPS Server


This article discusses some measures you can take to secure a Dedicated or VPS server.

Tasks Involved

Click on any of the tasks to jump to that point in the guide.

Use a Firewall to Limit Access

Firewalls prevent external access to software on your server that might otherwise be exposed. With firewalls you can limit the type of traffic, ports, and IP addresses that are allowed to communicate with your server.


Dedicated and VPS servers come with IP Tables. To learn more about IP Tables please see Manage Ports On Dedicated Or VPS Servers

Other Firewalls

Besides IP Tables, there are other firewalls you can use on your server

  • UFW (Uncomplicated Firewall)
  • NFTables

Brute Force Protection

Some services must be exposed to the internet so that you can connect to your server. In such cases, you still need to protect these access points. A common type of attack called "Brute Force Attack" occurs when an attacker attempts to login to your server by guessing the username and password. The attacker typically has methods and computers that are capable of trying guesses very quickly and given enough time can accurately determine a working user name and password.

A way to defend against these types of attacks is to have a system that monitors login attempts. If too many failed attempts occur from the same IP address within a short period of time, that IP address is blocked.


cPHulk is included on Dedicated and VPS servers, to learn how to configure it please see cPHulk Brute Force Protection

Connecting Securely

When you connect to your server, it's important to secure the connection. Insecure connections are more likely to have data stolen by anyone who might monitor the connection.


When connecting using SSH, it's a good idea to use keys instead of a traditional user name and password. See Generating a Public/Private Key


When making FTP connections, use SFTP instead of normal FTP. FTP setup using Secure FTP explains how to use SFTP

Using Trustworthy Software

A key component to security is making sure you only install trustworthy software on your server. Software from the distribution repositories that your server is already setup to use has been vetted and seen as trustworthy. Be careful when installing 3rd party software from untrusted services, you may be unknowingly installing malware.


You should also strive to keep your software up to date. The longer you keep out of date software the more likely you are to have known vulnerabilities in that software exploited.

Check for Malware Often

Even with strong security measures its still possible for your server to become compromised. A prudent server administrator will often check for malware on a server even if things seems to be running fine. To learn more about scanning for malware please see Antivirus on Dedicated or VPS servers

Was this resource helpful?

Did this resolve your issue?

Please add any other comments or suggestions about this content:

Recommended Help Content

CSF is a firewall for VPS and Dedicated servers. CSF is not installed as part of our default images on VPS or Dedicated servers. This article describes how to install it yourself or request support do so.
Knowledgebase Article 48,606 views tags: configserver csf dedicated firewall security vps

This article will explain how-to enable FTP on a newly provisioned VPS or Dedicated cPanel server. Since FTP is an unsecured connection point to the server, cPanel has it disabled by default in version 11.86 or prior.
Knowledgebase Article 3,494 views tags: dedicated file ftp root server transfer vps

If you need to transfer or restore a cPanel account for your VPS or Dedicated server, there is a tool within the WHM panel to perform these tasks. This article is about transferring or restoring from another server or restoring after a re-image.
Knowledgebase Article 54,503 views tags: backup cpanel dedicated hosting restore server transfer vps

Related Help Content

This article will explain how to disable SSLv3 on a VPS or Dedicated server. This can help you avoid issues with vulnerabilities in SSLv3.
Knowledgebase Article 91,251 views tags: dedi dedicated ssl vps

VPS and Dedicated servers come with all applications necessary to run a standard web and email server. The applications that come with the VPS and Dedicated servers are generally supported as-is by our support technicians.

How to fix inaccessible backups on Dedicated or VPS servers due to backup size.
Knowledgebase Article 91,861 views tags: backup dedi dedicated inaccessible loop stuck vps

VPS and Dedicated customers with servers running the CentOS 6 operating system will not be able to upgrade cPanel past version 86. The cPanel team will still support CentOS 6 with cPanel 86 until March 31st, 2021.
Knowledgebase Article 59,824 views tags: centos cpanel dedicated hosting private server upgrade virtual vps

What can I do to increase my Site Security while hosting with FastDomain?
Knowledgebase Article 368,944 views tags: antivirus basic hacked keyloggers malware php security site

How do I use a secure FTP connection?
Knowledgebase Article 331,656 views tags: ftp secure sftp shell ssh

How to renew an existing SSL certificate--or purchase a new one, within your cPanel
Knowledgebase Article 288,197 views tags: cert certificate layer secure security socket ssl

This article will explain the benefits of SiteLock for small businesses.
Knowledgebase Article 108,970 views tags: security sitelock