1. Ask access via Helpdesk
2. Configure vpn setup on you laptop:

openconnect vpn.skoltech.ru --user=A.Boev --passwd-on-stdin < /path_to_txt_with_skoltech_account_password/pass.txt --servercert pin-sha256:YOUR_PIN

echo | openconnect --servercert pin-sha256:invalid vpn.skoltech.ru 2>&1 | grep pin-sha256

If it doesn't work, perform the following:

echo | openssl s_client -connect vpn.skoltech.ru:443 -showcerts 2>/dev/null \
| sed -ne '/BEGIN CERTIFICATE/,/END CERTIFICATE/p' > skoltech_vpn.crt

sudo cp skoltech_vpn.crt /usr/local/share/ca-certificates/skoltech_vpn.crt
sudo update-ca-certificates

sudo /home/anton/vpn/./vpnscript.sh

You also can add the alias command into ~/.bashrc:

alias vpn='sudo /home/anton/vpn/./vpnscript.sh'