equals
the IP address of the physical server and, without
load
balancer, it would be the IP address and the name of the server (for example,
solution
www.example.com) to. For the rest of this article, we will
comment
on this idea as a guest.
The
second concept is a member (sometimes, unfortunately, also called from a node
some
manufacturers). A member is usually a little more defined than the server /
node
because
it includes the TCP port of the actual application that receives the traffic.
For
example, a server named www.example.com could resolve to an address
172.16.1.10,
which represents the server / node, and which may be in an application (web
server)
running on TCP port 80, making member address 172.16.1.10:80. Quite simply
push,
the member includes an explanation of the application port and IP
physical
server address. For the rest of this article, we will discuss this
as
the service.
f5 load balancer certification
Why
all the trouble? Because the difference between a physical server and the
the
running application services allow the balance of interactions on their own
with
applications rather than basic hardware. May guest (172.16.1.10)
more
than one service available (HTTP, FTP, DNS, and so on). Explain each one
unique
application (172.16.1.10:80, 172.16.1.10:21 and 172.16.1.10:53), the load
the
balancer can apply a special load balance and health check (discussed later)
based
on services rather than hospitality. However, there are still times
able
to interact with the guest (such as low-level health checks or while taking a
file)
offline
server for maintenance) extremely convenient.
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