History of Networking and Computing Service Center at Yamagata University with the development of the Internet and correspondence COVID-19

The Networking and Computing Service Center at Yamagata University has a history of progressing with the development of the Internet. The history started with connecting, and next proceeded with router failure handling, server construction, and software support in Japanese. Around 2000, the Internet spread to homes, and firewalls were used to implement security measures. In 2005, single sign-on was introduced to curb user account bloat, and digital certification was introduced to avoid the phishing scams. The Great East Japan Earthquake made communication lines and power supplies redundant, highlighting the vulnerability of such communication lines. In 2019, we supported the enhancement of wireless LAN and the use of web conferencing tools, virtual desktops and VPNs to prevent the spread of COVID-19 infection. Nothing has changed after 40 years, and it seems that it is all about how to connect users to the services of the Networking and Computing Service Center and provide a smooth educational environment.