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Siemens
Web Server OZW672... V6.0
CE1C5712en
Building Technologies
Appendix
2015-10-13
Dynamic DNS
See DynDNS
Dynamic Host
Configuration Protocol
See DHCP
Dynamic IP address
A dynamic IP address is assigned automatically via DHCP to a network device.
As a result, the IP address for a network device differs every time the device logs
in or at periodic intervals.
The ISP assigns dynamic IP addresses to network devices that are not online
continuously, i.e. integrated in the network. Dynamic IP addresses are reassigned
to other devices, as the number of addresses is limited. Web Server (permanently
online) does not use a dynamic IP address.
DynDNS
DynDNS is widely used Dynamic DNS service.
Dynamic DNS
The DNS server assigns domain names and IP addresses. Dynamic DNS is
required for dynamic IP addressing. It allows deployment of a network device with
dynamic IP address on the Internet.
Dynamic DNS ensures that a service is always available on the Internet under the
same domain name regardless of the current IP address.
A domain name can be registered with a Dynamic DNS service.
Ethernet
Ethernet is a network technology for local networks (LAN). Ethernet operates at a
transmission rate of 10 or 100 Mbps and has a maximum range of 100 meters
between two network components.
Firewall
A firewall protects networks against unauthorized access from the outside.
Firewalls are hardware and/or software measures designed to control data
exchange between the private network to be protected and an unsecured network
(e.g. the Internet).
Gateway
A gateway is a device connecting networks of different architecture (addressing,
protocols, interfaces, etc.). Although not entirely correct, the term often is used
interchangeably with router.
HTTP proxy
A proxy is a server used by network devices for Internet traffic. All requests are
sent via the proxy server.
HTTPS
The Web Server supports HTTPS (Hyper Text Transfer Protocol Secure).
Hub
A hub in a star-topology network connects various network devices by receiving all
data from one device and forwarding it to other devices.
Hyper Text Transfer
Protocol Secure
See HTTPS