In the vast world of the Internet, servers, IP addresses, and domain names constitute the foundation of website access. Their relationship is complex, yet they are at the core of every netizen’s daily online activity. This article will delve into the interconnection of these concepts and analyze how to protect our network assets from threats such as DDoS attacks.

Servers, IPs, and Domain Names: The Three Pillars of the Internet

Servers are hardware devices that store and process data, and can be thought of as “houses” on the Internet. Each server has a unique IP address, akin to a house’s street number, which is a numerical identifier assigned by Internet Data Centers (IDC). Users can access the content on servers via these IP addresses, whether it’s websites or applications.

However, remembering an IP address is as difficult as remembering a string of complex numbers. Therefore, the role of domain names becomes particularly important. Domain names provide a convenient way to access servers, acting like a signpost that guides users to the correct “house”. When we type a domain name into a browser, it is resolved into the corresponding IP address, thereby establishing a connection.

DDoS Attacks: A Common Threat on the Internet

DDoS attacks, or Distributed Denial of Service attacks, are a common form of malicious behavior where attackers occupy server resources with massive requests, preventing normal users from accessing them. This can be likened to a group of people intentionally blocking the entrance to a house, preventing other visitors from entering. To counteract this type of attack, website administrators may need to change the server’s IP address, which is akin to changing the house’s street number, making it difficult for attackers to find and continue their assault.

The Relationship Between Server IP Changes and Website Optimization

Consequences of changing a server’s IP address? Changing the server IP might not differ significantly from changing servers in terms of search engine optimization (SEO), as the ultimate impact is on the website’s IP address. However, operationally, changing servers is a complex task requiring the migration of programs and data, whereas changing the IP is usually simpler, only needing an update of the new IP address in the domain name resolution. Nevertheless, whether changing servers or IPs, it is crucial for maintaining website optimization.

How to Protect Domain Names and Servers from Attacks

To protect domain names and servers, various security measures can be adopted:

  • Using Firewalls: Setting up firewalls in front of servers can filter out unnecessary traffic.
  • Enhanced Verification: Strengthening the server’s authentication process ensures that only legitimate users can access.
  • Backup IP Addresses: Having spare IP addresses allows for quick switching in the event of an attack.
  • Monitoring and Response: Continuously monitoring server traffic and responding immediately upon detecting anomalies.