Securing Cloud Data with VPS Servers: Best Practices for VPS Security 

Key highlights 

• VPS security is essential to protect data, prevent cyber threats and ensure uptime. 
• A secure VPS minimizes risks like malware, DDoS attacks and unauthorized access. 
• VPS hosting offers better control with custom security settings and dedicated resources. 
• Best practices like updates, firewalls, SSH keys and backups enhance protection. 
• A reliable VPS provider ensures strong security, performance and uptime.
• Bluehost VPS hosting provides secure, high-performance servers with 24/7 expert support. 

Introduction 

Your VPS is a digital vault—But is it locked? 

A Virtual Private Server (VPS) gives you the power and flexibility of dedicated hosting without the hefty price tag. But with great power comes great responsibility, especially when it comes to securing cloud data with VPS servers. 

Cybercriminals don’t take days off and an unprotected VPS is like an open invitation to hackers, malware and data breaches. The good news? You don’t need to be a cybersecurity expert to keep your cloud data safe. 

In this guide, we’ll break down the best practices for enhancing the security of your cloud data by VPS servers. So, you can sleep soundly knowing your data is locked down well. Let’s get started! 

What is VPS security?

VPS security refers to measures that protect virtual private servers from threats like DDoS attacks, phishing and malware. Such security measures include DDoS protection, mandating strong passwords, enabling two-factor authentication, limiting user permissions, periodically updating and patching, configuring a firewall and installing SSL certificates.  

For instance, a business owner could enforce a policy where all administrative users create complex passwords and use SSH keys to log in. This standard minimizes the risk of unauthorized access by both cybercriminals and malicious insiders.  

Prioritizing these top VPS security tips allows server managers to better safeguard their VPS from potential threats. It also ensures the protection of their digital assets and promotes a secure online environment. 

How does VPS technology improve security?

VPS technology enhances security in several ways, making it a solid choice for businesses and individuals looking to protect their cloud data. VPS server security ensures that your hosting environment remains protected from cyber threats while providing flexibility and control. Here’s how it strengthens security: 

Isolation: In a VPS environment, each virtual server operates independently — activity in one VPS doesn’t affect others. This also means that if one website gets attacked or infected with malware, the others remain unaffected due to the isolation the VPS provider offers. Vulnerabilities on other websites won’t affect your secure website.  

Customizable security settings: With a VPS, you can implement custom security features tailored to your specific needs. For example, you could set advanced firewall configurations according to your unique preference and accommodate your favorite intrusion detection system. You wouldn’t have that control with shared hosting.  

While VPS technology enhances security, your operating system plays a key role in keeping your server safe. Linux is a popular choice for its stability and security, but it’s not without vulnerabilities. 

Linux security and common weaknesses

Linux security is the application of methods, best practices and policies to safeguard and secure a Linux-based operating system. It is widely used in VPS environments. The major purpose of Linux security is to protect the system from unauthorized access, data breaches and other cyber threats. By applying Linux security best practices, server administrators may greatly improve VPS security and protect their digital assets.  

However, Linux systems may have several common flaws that attackers might exploit if not handled effectively. Some of the weaknesses include:  

Malware: It is a frequent vulnerability that may infiltrate and compromise a system. This may result in data breaches, system failures or unauthorized access. Keeping software up to date and using VPS security solutions such as antivirus tools help prevent system infiltration and guard against malware.  

Sniffing attack: This is one in which an attacker intercepts and observes network traffic to obtain sensitive information. It includes login credentials or personal data. Encrypting data in transit, utilizing secure communication protocols and establishing network segmentation can all assist in protecting against sniffer attempts.  

Brute-force attack: It entails repeatedly attempting all conceivable combinations of passwords or encryption keys to obtain unauthorized access to a system. Implementing strong password restrictions, account lockouts and two-factor authentication can all help protect against brute-force assaults.  

SQL injection: These attacks exploit weaknesses in online applications by inserting malicious SQL code into databases to modify and retrieve sensitive data. SQL injection attacks may be mitigated by using proper input validation, parameterized queries and regular software updates for online applications.  

Cross-site scripting (XSS): It includes inserting malicious scripts into websites. This subsequently runs in the user’s browser, potentially compromising their session or collecting sensitive information. Implementing safe coding methods, input validation and content security standards may all assist in preventing XSS attacks.  

No function-level control: Unauthorized individuals can obtain access to sensitive functionalities inside an application. Implementing role-based access control, the concept of least privilege and conducting frequent access reviews can all assist in maintaining adequate function-level control.  

Broken authentication: It happens when weaknesses in an authentication process enable attackers to impersonate genuine users or circumvent authentication entirely. Ensuring safe user credentials, employing strong encryption and adopting multi-factor authentication can all assist in mitigating broken authentication vulnerabilities. 

Assessing secure VPS hosting providers

 When evaluating secure VPS hosting providers, it’s important to consider a range of factors that contribute to their overall security. A few of them are as follows: 

24/7 tech support 

The internet never sleeps and neither do viruses and glitches. Having tech support available 24/7 means someone is always there to handle issues, especially problems that need immediate focus for the sake of your brand.  

Bluehost is an ideal VPS hosting provider. It offers round-the-clock network monitoring to catch security incidents and technical issues before anyone. You’ll receive alerts if anything needs your attention and the support team is always available to address any issues promptly.  

It’s important to note that fully managed VPS hosting is easier for business owners who don’t have an IT team or technical experience with servers. On the other hand, unmanaged VPS plans are better for businesses that employ server management experts who can manually configure security solutions and navigate advanced controls.  

Additionally, Bluehost offers 24/7 VPS hosting assistance to ensure a smooth user experience. They also provide free migration service to help you seamlessly transfer existing services without disruption. 

So, ready to upgrade your hosting experience? Explore Bluehost VPS hosting and get the performance, security and support your business needs!  

Customization and control 

With a good VPS hosting provider like Bluehost, you get complete control over your server resources, which allows you to: 

• Add extra security features like your favorite antivirus 
• Install custom applications and software 
• Manually configure your website infrastructure 
• Benefit from a free dedicated IP address for a unique and private web presenceYou can also easily upgrade your hosting plan with more resources as your business grows. 

Performance and hardware 

Modern VPS providers use advanced hardware to enhance both performance and security. Bluehost VPS hosting plans come with different specifications depending on the tier. For instance, the ‘Standard’ plan includes 2 vCPU cores, 4 GB DDR5 RAM and 100 GB NVMe storage, while the ‘Enhanced’ plan offers 4 vCPU cores, 8 GB DDR5 RAM and 200 GB NVMe storage. Using AMD EPYC CPUs, DDR5 memory and NVMe SSD storage helps ensure efficient data processing and reduces vulnerabilities. It’s important to check the specific plan details before selecting a VPS solution.

Features like unmetered bandwidth also help manage large traffic volumes and mitigate denial-of-service attacks. Providers such as Bluehost incorporate these technologies to strengthen VPS security and performance.   

Reliability and availability 

Reliability is essential for maintaining VPS security. A trustworthy VPS hosting provider should guarantee high uptime and be supported by a secure, reliable data center infrastructure. For instance, Bluehost utilizes data centers with Tier 3 standards, which provide high availability and implement robust security measures to safeguard data and prevent unauthorized access. 

Regular updates and patching 

It’s vital to install timely updates to your operating system and applications because these patches fix loopholes that hackers exploit. Updates include the latest defenses against emerging threats, so stay one step ahead of cybercriminals. 

Related read: What Is VPS Hosting? Everything You Need to Know! 

Best practices for VPS security 

Securing your VPS is essential to protecting your data, website and applications from cyber threats. Here are some best practices that strengthen virtual server security and ensure cloud data protection: 

• Use Secure File Transfer Protocol (SFTP) 
• Install SSL certificates for data encryption 
• Disable root logins 
• Use security applications like fail2ban or iptables 
• Use strong passwords and SSH key authentication 
• Limit user permissions 
• Perform periodic updates and patching 
• Configure your firewall to block malicious traffic 
• Enable two-factor authentication (2FA) 
• Install an antivirus 
• Use a malware scanner 
• Monitor server logs 
• Disable unused ports 

Now that we know them all, let’s look at each VPS security strategy in detail: 

Use Secure File Transfer Protocol (SFTP) 

The traditional File Transfer Protocol (FTP) would send login credentials in plain text, which hackers can intercept and read. Secure File Transfer Protocol (SFTP) eliminates this risk by encrypting credentials, which hackers can’t decipher even if they manage to intercept.  

FTP is like sending an open letter that anyone could read if they intercepted it. SFTP, on the other hand, encrypts your data—it’s as if you wrote your message in a secret code that only the intended recipient can understand.  

Moreover, SFTP requires user authentication, typically through a username and password and you can configure it to use SSH keys. That way, only authorized users can access and transfer files to and from your server.  

SFTP also operates over SSH’s default port (22) which simplifies firewall configurations and sidesteps the need to open multiple ports. This minimizes your server’s exposure to attacks since there’s only one port to defend. 

Related read: What is FTP? An Introduction to File Transfer Protocol 

Install SSL certificates for data encryption 

Another way to use encryption to secure your VPS server is to install SSL certificates.  

SSL certificates encrypt the data transmitted between users’ browsers and your server. This protects sensitive information like login credentials, credit card numbers and personal data. 

SSL encryption also prevents man-in-the-middle attacks, where cybercriminals monitor or steal data as it’s transmitted. It’s like a nosy neighbor eavesdropping on your private conversations, hoping you’ll say something they can exploit. But with SSL, your data remains unreadable. 

Related read: What Is An SSL Certificate? How Much Is An SSL Certificate? 

Disable root logins 

Root accounts typically have complete control over VPS servers. Think of it as the main control panel; it’s powerful enough to do anything. Unsurprisingly, hackers often try to break into root accounts. 

When you disable root logins, you remove the most obvious target for attackers. As a result, you significantly reduce a hacker’s ability to inflict harm on your operating system. 

On top of that, disabled root logins mitigate brute force attacks, where cybercriminals guessingly try tons of password combinations to gain access. If you deactivate root logins, these attacks become pointless, which improves server security. 

On the other hand, create an alternative username with root-level command privileges for server configuration purposes. 

Use security applications like fail2ban or iptables 

Both fail2ban and iptables prevent unauthorized access to your VPS server by automatically blocking suspicious IP addresses. They’re like intelligent security guards for your VPS. Additionally, ConfigServer Security & Firewall (CSF) is a widely used security tool and Bluehost provides guidance on installing and configuring CSF on their VPS and dedicated servers.  

Fail2ban monitors log files for repeated failed login attempts, which is a common sign of brute force attacks. When it detects such activity, it automatically updates firewall rules to block the hacker’s IP address for a specified period. This stops cyberattackers in their tracks, as they can’t access or even see your server from that IP address. 

With iptables, you can set up firewall rules on Linux systems. It enables control of incoming and outgoing traffic based on specific criteria like IP addresses, port numbers and protocols. You can block or allow specific IP addresses and decide which ports stay open or closed. 

Think of it as a sky-high fence you build and change however you like. You set the rules for who’s allowed in and out of your server. 

This facet of VPS security lets you restrict access to only necessary services and block known malicious IPs, which reduces the risk of unauthorized access and attacks. 

Use strong passwords and SSH key authentication 

Strong passwords and SSH keys protect against phishing and brute force attacks. 

You need to mandate strong passwords for your server accounts because your overall network security is only as strong as your weakest password, which could be the entry point for hackers. Make users pick a complex string of uppercase, lowercase, numbers and symbols. 

Additionally, use SSH, an encrypted network protocol to safely access and manage servers even over an unsecured network. 

An SSH key pair includes a public key and a private key. The public key is added to the server, while the private key is kept secure on your local machine. When you try to log in, the server checks if your private key matches the public one. 

Even if someone knows your public key, they can’t access the server without the matching private key, which only you have. Bluehost clients can generate SSH key pairs easily from the control panel. 

Limit user permissions 

Limiting user permissions on your VPS server means granting people the least amount of privilege necessary. Not every user should have root access or Sudo, a powerful tool that lets someone execute a command as the root user.  

Imagine handing out keys to your team. You wouldn’t give everyone a master key to every door. Instead, each person gets access only to the areas they need.  

Likewise, if you have a staff account for web maintenance, it doesn’t need root privileges. Limit its user access to only what’s necessary for web-related tasks. That way, if a hacker breaks into that account, they can’t do much compared to an account with root access. 

Perform periodic updates and patching 

As you know by now, updates close security gaps that cybercriminals could use to break in. Additionally, updates fix bugs and improve performance. This keeps your server running smoothly and efficiently, reducing the risk of operational issues attackers could exploit. 

Make sure to perform regular backups for your VPS server. In case of a cyberattack or data loss, you can use the most recent backup to restore everything and get back on your feet quickly. Bluehost clients get automatic backups, which takes another thing off your to-do list. 

Configure your firewall to block malicious traffic 

A firewall acts as a gatekeeper for your server, controlling which traffic gets in and out based on set rules. This stops unauthorized access attempts, including people trying to use your server for malicious activities. 

Moreover, you can configure your firewall to block traffic from known malicious IP addresses or networks. That’s particularly useful to bolster your virtual private server’s security against attackers and bots you’ve already identified as potential threats. 

Firewalls can also mitigate a DDoS (distributed denial-of-service) attack by filtering out traffic that appears to be part of the attack. Although it won’t counteract all the effects of the DDoS attack, it makes it a lot more manageable. 

Related read: Is My Website Protected Against DDoS Attacks? 

Enable two-factor authentication 

Two-factor authentication (2FA) is a policy that mandates a second type of identification beyond just a password. Like a double-lock system on your front door, it adds an extra layer of security. In 2FA, the second layer could be a text message, a code from an app or a hardware token. 

It ensures that server access is not solely dependent on passwords. This becomes particularly important if ever your password security is compromised without your knowledge. 

Even if a hacker manages to steal or guess your password, they can’t access your server without the second factor. Thus, 2FA is effective against a wide range of cyberattacks, including phishing, brute force and keylogging. 

Related read: How to Enable and Disable Two Factor Authentication 

Install an antivirus  

Although Linux-based VPS settings are typically less vulnerable to malware than other operating systems, you should nevertheless install an antivirus package to safeguard your server from potential threats.  

Antivirus software analyzes your server for known malware signatures, quarantines, or deletes infected files, and monitors system activity to identify and prevent unusual behavior.  

ClamAV, Sophos, and ESET NOD32 are among the most popular antivirus solutions for Linux servers.  

Updating your antivirus software regularly and doing periodic scans is one of the top VPS security tips to help you protect your digital assets from malware infestations. 

Use a malware scanner  

Scan your VPS for malware regularly to keep it secure and preserve your data. A malware scanner scans your server for dangerous software, including viruses, trojans, and rootkits, and either eliminates or quarantines any detected threats.  

ClamAV, Maldet, and Rkhunter are popular malware scanners for Linux systems. It is critical to update your malware scanner regularly so that it can detect the most recent threats, as well as to run routine scans to quickly discover and fix any vulnerabilities and infestations. 

Related read: Malware FAQ: What Malware Is, Types, Prevention and Removal 

Monitor your server logs 

Regularly reviewing your server logs is critical for having a safe VPS environment. Logs include vital information about server activities, such as unsuccessful login attempts, illegal access, system failures, and potential security concerns.  

By constantly monitoring your logs, you may spot suspicious behavior or possible concerns early on and take proper precautions to reduce risks.  

Tools like Logwatch, GoAccess, and Graylog may automate log monitoring and analysis, making it simpler to discover and handle possible security issues.  

Disable unused ports  

Leaving open ports on your VPS might expose it to possible attacks and unauthorized access. Regularly examining and removing unneeded ports can assist in minimizing your server’s attack surface and increase security.  

Use a firewall to prevent access to unnecessary ports and only allow traffic to essential services.  

Regularly check your server’s network settings to verify that only the necessary ports are open and accessible. 

Final thoughts 

Cyberattackers are like digital pickpockets! They are always lurking, waiting for a chance to strike. But with the right VPS security measures in place, you can lock down your server, keep data breaches at bay and ensure your business runs without a hitch. 

Securing cloud data with VPS servers is essential for protecting sensitive information, maintaining uptime and preventing cyber threats. With a reliable VPS hosting provider, you get the security, flexibility and performance needed to safeguard your online presence. 

At Bluehost, we don’t just offer VPS hosting—we provide rock-solid security, full control and 24/7 expert support to keep your site safe and running smoothly. Plus, with unlimited bandwidth, memory and storage, you get all the power without breaking the bank. 

Get started with Bluehost VPS hosting today! Give your website the security and performance it deseves!

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