service
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... IP subnet prefixes. Thus, they are sometimes used as service
identifiers, to which unsolicted requests are directed, or as subnet ...
... number of Internet hosts to rely on a single central Internet
service. This can result in a service outage when the aggregate
workload overwhelms that service ...
... Internet hosts to rely on a single central Internet
service. This can result in a service outage when the aggregate
workload overwhelms that service. When fixed addresses ...
... Internet
service. This can result in a service outage when the aggregate
workload overwhelms that service. When fixed addresses are embedded
...
... directly counter to the design intent of hierarchically deployed
services that would otherwise be robust solutions.
The reliability ...
... reliability, scalability, and performance of many Internet
services require that the pool of users not access a service using
its IP address ...
... scalability, and performance of many Internet
services require that the pool of users not access a service using
its IP address directly. Instead, they typically rely on a level of
...
... 6]. When
appropriately utilized, the DNS permits the service operator to
reconfigure the resources for maintenance and to perform load
balancing, without the participation of the users and without a
...
... IP address or block has been reassigned and no longer hosts
the service for which that traffic was intended. Circa 1997, the
authors of RFC 2101 ...
... IP
address reuse, RFC 2050 [1], encourages Internet Service Providers
(ISPs) to treat address ...
... hosts should use the Domain Name System to determine the IP
addresses associated with the Internet services they require.
When using domain names ...
... hosts, designers and vendors are encouraged to
introduce service names. These names should be within a domain that
they either control or are permitted to utilize by an agreement ...
... they either control or are permitted to utilize by an agreement with
its operator (such as for public services provided by the Internet
community). This is commonly done by introducing a service-specific
...
... its operator (such as for public services provided by the Internet
community). This is commonly done by introducing a service-specific
prefix to the domain name ...
... domain names enable ongoing maintenance and reconfiguration of the
services for their client hosts and can aid in the ongoing
measurement of service ...
... services for their client hosts and can aid in the ongoing
measurement of service usage throughout the product's lifetime.
...
... vendor-specific domain naming conventions
for a product's service identifiers is to utilize SRV resource
records ...
... SRV records are a generic
type of RR that uses a service-specific prefix in combination with a
base domain name ...
... Discover and Utilize Local Services ...
...
Service providers and enterprise network operators should advertise
the identities of suitable local services ...
... Service providers and enterprise network operators should advertise
the identities of suitable local services, such as NTP. Very often
these services ...
... services, such as NTP. Very often
these services exist, but the advertisement and automated
configuration of their use is missing. For instance, the DHCP
...
... service identifiers. When local
services, including NTP, are available but not pervasively advertised
using such common protocols, designers are more likely to deploy ad
...
... hoc initialization mechanisms that unnecessarily rely on central
services.
...
... Avoid Mentioning the IP Addresses of Services ...
... NTP community, should deprecate the explicit
advertisement of the IP addresses of public services. These
addresses are ephemeral. As such, their widespread citation in
...
... addresses are ephemeral. As such, their widespread citation in
public service indexes interferes with the ability to reconfigure the
service when necessary to address ...
... public service indexes interferes with the ability to reconfigure the
service when necessary to address unexpected, increased traffic and
...
... Implementors of host services should avoid any kind of use of unique
globally-routable IP addresses within a fixed configuration part of
...
... globally-routable IP addresses within a fixed configuration part of
the service implementation. If there is a requirement for pre-
configured state ...
... configured state, then care should be taken to use an appropriate
service identifier and to use standard mechanisms for dynamically
resolving the identifier ...
... identifiers should be alterable in the field through a conventional
command and control interface for the service.
...
... Hamilton, M. and R. Wright, "Use of DNS Aliases for Network Services", BCP 17, RFC 2219, October 1997. ...
... Gulbrandsen, A., Vixie, P., and L. Esibov, "A DNS RR for specifying the location of services (DNS SRV)", RFC 2782prop, February 2000. ...
... the University of Wisconsin, with the cooperation of NetGear, will
build a new anycast time service that aims to mitigate the damage
caused by the misbehavior of these flawed routers.
...