An application form of the MDAS VPN service is on https://www.adc.nao.ac.jp/MDAS/appl/vpn_e.html. Once the registration process is complete, how to use the MDAS VPN service will be informed you by e-mail. Note that installation of anti virus software into user's PC is mandatory for the use of the MDAS VPN service. Be sure to install it. If you have any questions, please contact the ADC open-use help desk (consult(at-mark)ana.nao.ac.jp).
An application form of the NAOJ staff's VPN service is on https://nethelp.mtk.nao.ac.jp/contents/en/node/4. If you have any questions, please contact the NAOJ NETWORK SERVICE HELP CENTER (https://nethelp.mtk.nao.ac.jp/contents/en, accessible only from the NAOJ network).