Tunnelling NTP Through a Firewall?
Franklin_DeMatto asks: "My ISP keeps my server behind a tight firewall, only allowing outgoing HTTP(S) and SMTP. I would like to sync the system's clock using NTP. Does anyone know of any public time servers that can do some type of NTP over HTTP, to get through the firewall? What about the software (preferably open source) to do it? (No, the ISP will not change the firewall rules.)"
NTP tunnels through YOU!