Can you provide me with the solution?
I am currently using multiple offices, each having their own IP address to access different services.



The problem is that I can't remember all the IP addresses of each office, which causes confusion.
To solve this issue, I want to use a domain name for each office instead of their IP address.
For example, by typing client1.mysite.com, the IP address of client1 will be opened in the Remote Desktop. Similarly, ssh client2.mysite.com will request another IP leading to the correct client.
Unfortunately, I don't know how to do this as I cannot make any changes through the domain control panel (started.com).
It's also important to note that I need this solution to work on different computers, so editing hosts is not a feasible option.

Do you have any suggestions on how to achieve this?

Do you require a specific link between the subdomain and your domain?
I utilize the service of www.no-ip.com/, which enables me to use an agent on each client machine and connect them with designated domain names that are dynamically updated if changes occur.
You have the option to select which domain to use, such as myclient1.no-ip.org.
The basic version of this service is free and meets my needs appropriately.

There are two options available for adding necessary subdomains:
The first approach is to locate the DNS control panel at the host and add the required subdomains.
Alternatively, you can transfer the domain by changing the addresses of ns servers in the registrar panel to a third-party DNS hosting and add the subdomains there.
It's important to remember transferring any existing records from the DNS servers of the hosting provider manually or via AFXR, if such an option is allowed.

In cases where it's not feasible to configure subdomains via DNS, another option is to set up virtual hosts on Apache under your domain and redirect them to a specific IP.
However, this approach should be used as a last resort.

Understanding the fundamental concepts of IP addresses and domains is essential in comprehending how the internet works. These concepts are interrelated and represent the same information, albeit with different formatting. IP addresses denote a device's network address while domains are a more understandable format for humans. Essentially, it's like comparing a phone number to a contact's name in a phone book. To learn how domains differ from IP addresses, read our article where we delve into these concepts further and explore their roles within the global network.

A domain refers to a site's name comprising unique sequences of characters like letters, numbers, dots, and hyphens that enable users to locate the web resources on the global network. Domain names need to be registered with specific registrar companies approved by ICANN, the international corporation managing domain names and IP addresses worldwide. Domain owners have to pay a lease fee or opt to rent an existing one if available. A high-quality domain should be easy to memorize and reproduce. It typically consists of the brand name or reflects the scope of its activity. Domains have a hierarchical structure with each level separated by dots, at least three parts, and a root domain, which is the zero level for all internet addresses.

In summary, having an understanding of these terms is critical in effectively working with the internet and website management.

Its important to know about domain name to avoid confusion.
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Given the constraints of not being able to make changes through the domain control panel, let's explore a few potential solutions in more detail.

Reverse Proxy Server Solution:
One way to achieve the mapping of domain names to office IP addresses is by implementing a reverse proxy server. This server sits between the public internet and your internal office network. It can be configured to route incoming requests based on the domain name to the respective office's IP address.

To implement this solution, you would set up a reverse proxy server with a public IP address and configure it to listen for incoming requests to specific domain names (e.g., client1.mysite.com, client2.mysite.com). When a request comes in for a specific domain, the reverse proxy server would then forward the request to the appropriate office's IP address within your internal network.

Dynamic DNS (DDNS) Solution:
If your office locations have dynamic IP addresses, a Dynamic DNS (DDNS) service could be utilized. DDNS allows you to associate a domain name with a dynamic IP address, ensuring that the domain name always points to the correct office location, even if the IP addresses change.

To implement this solution, you would need to sign up for a DDNS service and configure your office network devices, such as routers or firewalls, to update the associated IP address with the DDNS provider whenever it changes. This would ensure that the domain names you assign to each office always resolve to the correct IP addresses.

Managed DNS Solution:
If your office locations have static IP addresses, you could explore using a managed DNS service. With a managed DNS service, you can create custom DNS records to map domain names to specific IP addresses.

In this scenario, you would leverage the capabilities of a managed DNS provider to configure DNS records that map your desired domain names to the respective office IP addresses. This approach allows you to achieve the desired mapping without needing to make changes directly through your domain registrar's control panel.

It's important to consider the implications on network security and remote access when implementing any of these solutions. For example, you may need to ensure that your chosen solution supports secure access protocols such as SSL/TLS for encrypted connections and that the appropriate firewall rules are in place to control access to your office networks.

By implementing one of these solutions, you can simplify access to the various office services using domain names, ultimately reducing confusion and streamlining operations for your multi-office setup. Each approach has its own considerations and potential impacts, so it's important to carefully evaluate which solution best fits your specific network architecture and business requirements.