Performing a basic port scan (nmap -F dkfz-heidelberg.de)
Nmap scan report for dkfz-heidelberg.de (192.54.49.124)
Host is up (0.17s latency).
rDNS record for 192.54.49.124: www100.inet.dkfz-heidelberg.de
Not shown: 98 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 7.59 seconds