Cisco Cisco ACNS Software Version 5.5 Informationshandbuch
Q. Can you explain why Content Engine is slow to connect to a Web
server, cannot connect to a Web server, or cannot transfer files?
server, cannot connect to a Web server, or cannot transfer files?
A. When receiving a connection, a server generally attempts to map a fully qualified domain
name to an IP address to determine the source domain of a connection. If the Content Engine
does not have a Domain Name System Pointer (DNS PTR) record reachable by the receiving
server, the connection could be delayed or not permitted. The delay occurs if the server's DNS
server times out while requesting the PTR record. If the PTR record does not exist or is not
received, the server may refuse access to the Content Engine. To prevent this, configure a
DNS PTR record for the IP address or Network Address Translation (NAT) address of the
Content Engine.
name to an IP address to determine the source domain of a connection. If the Content Engine
does not have a Domain Name System Pointer (DNS PTR) record reachable by the receiving
server, the connection could be delayed or not permitted. The delay occurs if the server's DNS
server times out while requesting the PTR record. If the PTR record does not exist or is not
received, the server may refuse access to the Content Engine. To prevent this, configure a
DNS PTR record for the IP address or Network Address Translation (NAT) address of the
Content Engine.
Q. How do I configure the Content Engine as a proxy server?
A. Configure all clients' Web browsers to go to the Content Engine. Configure the Content
Engine with the following command to allow incoming or outgoing requests on a specific
port number:
Engine with the following command to allow incoming or outgoing requests on a specific
port number:
http | proxy {incoming ports | outgoing {host {{hostname | ipaddress} ports [prima]
Note: No Web Cache Communication Protocol (WCCP) redirection is required.
Related Information
Cisco Content Software
•
Content Networking Software Center (
registered customers only
)
•
CDN Hardware and Software Compatibility Matrix
•
Technical Support − Cisco Systems
•
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© 2014 − 2015 Cisco Systems, Inc. All rights reserved. Terms & Conditions | Privacy Statement | Cookie Policy | Trademarks of
Cisco Systems, Inc.
Updated: Jan 31, 2006
Document ID: 15039