Parameter
is/HTTP/virt_host_x (x number between 0 and 9)

Short text
definition of virtual hostThe parameters is/HTTP/virt_host_0 to is/HTTP_virt_host_9 definehow the computer and service used to address an HTTP request arerepresented on the "virtual host". The virtual host, in turn,controls the request-handler's search (seetransaction SICF).
When you maintain this, note that no "gaps" can exist, becausethe subsequent parameters cannot be taken into account. So if theparameters ../virt_host_0 to ../virt_host_5 are maintained alongwith the parameter ../virt_host_7, this is no longer taken intoaccount.
The virtual host is determined beginning with the highest parametermaintained on down. If, for example, the parameters../virt_host_0 to ../virt_host_5 are maintained, then ../virt_host_5is analyzed first. If this is true, it is used to determine therequest handler. Otherwise../virt_host_4 etc. is analyzed, through ../virt_host_0.
The parameter is/HTTP/virt_host_0 determines the so-called defaulthost (see transaction SICF).

Work area
System

Parameter unit
charater string

Default value
The DEFAULT_HOST is always used.

Who is allowed
The customer

Limitation for os
None

Limitation for db
NoneThe parameters must have the following syntax:is/HTTP/virt_host_n = <(><<)>Host_1<(>><)>:<(><<)>Service_11<(>><)>, ..
<(><<)>Service_1n<(>><)>;..<(><<)>Host_2<(>><)>:<(><<)>Service_21<(>><)>, ..
<(><<)>Service_2m<(>><)>;<(><<)>Host_x<(>><)> and <(><<)>Service_yz<(>><)> may contain the
wildcards '*' and '?'.
'*' can be used to represent any substring, '?' anycharacter.
Examples
is/HTTP/virt_host_0 = host1*:8080,9090; host2:8080;
is/HTTP_virt_host_1 = host3*:808?; host4:8080,9090;The subsequent requests are allocated to the following servers:
(host1.wdf.sap-ag.de, 8080) --<(>><)> virt_host_0 (DEFAULT_HOST)
(host2, 8080) --<(>><)> virt_host_0 (DEFAULT_HOST)
(host3.sfo.sap-ag.de,8081) --<(>><)> virt_host_1
(host4,9090) --<(>><)> virt_host_1
(host5,9090) --<(>><)> no assignment possible(host4,9090) --<(>><)> virt_host_1
(host5,9090) --<(>><)> no assignment possible