Dell 3-DNS Dokumentacja Pobierz pdf (Strona 144)

100

101

Chapter 4: Configuring the High-Level Network

4-64

Configuring a remote origin server

To ensure that a remote origin server or cache server responds to the BIG-IP

rather than to the original cache server that generated the missed request, the

BIG-IP also translates the source of the missed request to the translated

address and port of the associated SNAT connection.

In order to enable these scenarios, you must:

• Create a SNAT for each cache server.

• Create a SNAT auto-mapping for bounceback.

Configuring a SNAT for each origin server

The SNAT translates the address of a packet from the cache server to the

address you specify. For more information about SNATs, see SNATs, on

page 4-122.

Creating a SNAT automap for bounceback

You must now configure a second SNAT mapping, in this case with the

SNAT automap feature, so that when requests are directed to the origin

server, the server will reply through the BIG-IP and not directly to the client.

(If the BIG-IP replied directly to the client, the next request would then go

directly to the origin server, removing the BIG-IP from the loop.) For more

information about SNATs, see SNATs, on page 4-122.

variable

http_method

http_header <header tag>

http_version

http_uri

http_host

http_cookie <cookie_name>

link_qos

ip_tos

client_addr

server_addr

client_port

server_port

ip_protocol

binary operator

and

contains

matches

equals

starts_with

ends_with

matches_regex

one of

redirect to

Element Description

Table 4.13 Elements for rules construction

1 2 ... 139 140 141 142 143 144 145 146 147 148 149 ... 425 426

Komentarze do niniejszej Instrukcji

Brak uwag

Dell 3-DNS Dokumentacja Strona 144

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Networking Dell 3-DNS