What’s the Difference Between a VPN Server and a Firewall?

In the realm of cybersecurity, two crucial components stand out for safeguarding networks and data are VPN servers and firewalls.

A firewall separates an untrusted or risky network from a trusted network by a barrier. It monitors and controls the data going in and out of a network through a defined set of security rules.

A VPN server provides a secure and encrypted tunnel that helps data to pass between users and the network. Its main function is to establish a private and secure communication channel over a public network, typically the Internet.

Comparison Table Here

What is a Firewall and Its Features?

A firewall, as mentioned, is a barrier or a shield that determines what goes to your internal network from the outside world. It basically stops any malicious links, websites, or viruses from entering your network or device through the Internet.

Features of Firewalls

1. Access Control: Firewalls analyze network packets and apply rules to either allow or block traffic based on factors such as source IP, destination IP, port numbers, and protocols.
2. Intrusion Prevention: Advanced firewalls can detect and prevent suspicious or malicious activities, including unauthorized access attempts, malware infections, and denial-of-service (DoS) attacks.
3. Network Segmentation: Firewalls can segment a network into multiple zones or subnetworks, allowing administrators to enforce different security policies based on the level of trust associated with each zone.

How Does a Firewall Work?

A firewall acts as a barrier between an internal network, such as the Wi-Fi network of a company, and an external network, such as the Internet or the network provider.

Its primary function is to monitor and control the flow of network traffic based on predefined security rules.

When data packets enter or leave the network, the firewall inspects them to determine whether they meet the criteria defined in its rule set. These rules typically specify factors such as the source and destination IP addresses, port numbers, and protocols.

If a packet matches an allowed rule, the firewall permits it to pass through. However, if a packet violates any of the rules, the firewall blocks it, preventing it from reaching its destination.

Additionally, firewalls can be configured to log information about blocked or allowed traffic, providing administrators with valuable insights into network activity and potential security threats.

Advanced firewalls may include intrusion detection and prevention systems to identify and stop unauthorized or harmful activity in real-time.

Firewalls play a crucial role in protecting networks from unauthorized access, cyber threats, and data breaches by enforcing access control policies and monitoring network traffic,

What is a VPN and Its Features?

A VPN is a virtually private network. VPNs are used for various purposes, including security, privacy, unblocking geo-restrictions, and protection on public networks. VPNs got it all.

Here are some features of VPN service that serve as benefits for users:

1. Encryption: It is a key feature of VPNs that guarantees the security and privacy of your data. VPNs jumble your internet traffic using encryption algorithms, so unwanted data cannot be read.
2. Kill Switch- A kill switch prevents IP leaks by automatically disconnecting your device from the internet if the VPN connection drops unexpectedly. This prevents your online activities from being exposed to the internet, ensuring that your data remains secure even in the event of VPN connection failures.
3. Split tunneling- Split tunneling is a feature that allows users to route only a selected part of their internet traffic through the VPN tunnel while the rest of the traffic is directed through the regular internet connection.
4. Protocols- VPN protocols determine the methods to establish and secure VPN connections. Common VPN protocols include .
   Wireguard vs OpenVPN vs Shadowsocks, IKEv2/IPSec, L2TP/IPSec, and PPTP. Each protocol has its strengths and weaknesses in terms of security, speed, and compatibility. Users can typically choose the protocol that best suits their needs based on factors such as security requirements and compatibility.
5. Multi-Device Connection- Good VPNs have a simultaneous multi-device connection, allowing you to use the VPN on multiple devices at the same time with only one subscription.

Can I Use A Firewall and A VPN Together?

Yes, both VPN and Firewall can be used together for enhanced safety and privacy on the Internet. VPNs will encrypt your data completely, while Firewalls will decide which data to pass through.

Not only that but once the Firewall blocks unwanted third parties from visiting you, the VPN will make your Internet usage anonymous and also allow you to bypass geographical restrictions.

Conclusion

Both Firewall and VPNs have their respective pros and cons, but to utilize them fully is the real task. If you prioritize your Internet security, these two attributes will help you to be safe, even in the virtual mini world.

So, configure your VPN and firewall right away!