When the proxy accepts a Z39.50 client session, it
determines the backend target by the following rules:
If the InitializeRequest PDU from the
client includes an
otherInfo
element with OID
1.2.840.10003.10.1000.81.1, then the
contents of that element specify the target to be used, in the
usual YAZ address format (typically
tcp:hostname:port)
as described in
the Addresses section of the YAZ manual.
Otherwise, the Proxy uses the default target, if one was
specified on the command-line with the -t
option.
Otherwise, the proxy closes the connection with
the client.