No-IP 2.2.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. No-IP is included in Internet & Network Tools. The actual developer of the free software is Vitalwerks & No-IP.com. Commonly, this program's installer has the following filenames: DUC20.exe, DUC30.exe, No-IP 2.2.1.exe and No-IP.exe etc. The most popular versions among No-IP users are 3.0 and 2.2. We recommend checking the downloaded files with any free antivirus.
From the developer:
Tired of remembering your dynamic IP address?
Use our No-IP Free Dynamic DNS (DDNS) and redirection service to map a static or dynamic IP address or long URL to an easy to remember subdomain such as yourname.no-ip.org.
You can Run a server on a dynamic IP (DHCP); Remotely access your computer. You have an Industry leading dynamic DNS (DDNS), an URL redirection / port 80 redirection and a Free Dynamic DNS update client.
You may want to check out more software, such as No-IP Client or No-IP DUC, which might be similar to No-IP.
Network tools
Network tools