MACROMEDIA FLASH MEDIA SERVER 2-USING FLASH MEDIA SERVER EDGE SERVERS Guida Utente Scaricare il pdf (Pagina 19)

ADOBE CONNECT 6.0

Technical Overview

Shared storage

Enterprise Server can store content on NAS and SAN devices. Content is any file published to Enterprise Server, such

as courses; SWF, PPT, or PDF files; and archived recordings.

When you use shared storage, you can configure Enterprise Server to use the server’s disk as a content cache so that

all content is copied to the external storage device and pulled to each server’s content folder as needed. Old content

is purged from each server’s content folder to make room for new content as needed (the content is always kept on

the NAS/SAN device). This configuration frees resources on the application server, which is especially helpful in a

large cluster.

If you don’t configure a content cache, content is mirrored on all servers and the external storage device.

When an external storage device fills up, you can add more space to the device, or add another device to the front of

the chain. Content only writes to the first device in the chain.

Database server clusters

If you choose to deploy Enterprise Server in a cluster, you must have a separate database layer. The database must

reside on a different computer than Enterprise Server—separate from the application server layer. The database can

be either a single SQL server or a SQL cluster.

To cluster the Enterprise Server database, Enterprise Server requires Microsoft SQL Server 2000 or Microsoft SQL

Server 2005 and relies on the SQL server’s clustering functionality. Furthermore, all Enterprise Server servers in the

cluster must have access to the database. A cluster configuration reduces the load on a single computer, and enables

failovers and backups without disrupting service.

Edge server clusters

Enterprise Server enables organizations to support edge networks through Connect Edge Server. Edge routing

reduces the bandwidth requirements and latency, and edge servers support stateless failover. As such, you can cluster

edge servers when high availability and global reach are critical to the organization. For more information about

Connect Edge Server, see Connect Edge Server.

Security

Planning a security strategy

The easiest solution to secure a dedicated, single-server Enterprise Server system is to block all ports on the server

except for 80, 1935, and 443 (for SSL-enabled traffic). An external-hardware firewall appliance provides a layer of

protection against gaps in the operating system. Some organizations configure layers of hardware-based firewalls to

form DMZs. If the server is carefully updated by your IT department with the latest Microsoft security patches, you

can configure a software-based firewall to enable additional security.

Multiserver (cluster) solutions are inherently more complex. You can configure and extend the Enterprise Server

service with geographically dispersed edge servers. However, you must understand how to secure the communica-

tions between the origin cluster and edge clusters. The following are suggestions for securing multiserver solutions:

• Create an extra subnet for the Enterprise Server system. For multiserver solutions in a single location, a private

network is simple and offers a high level of security.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 25

Nessun commento

MACROMEDIA FLASH MEDIA SERVER 2-USING FLASH MEDIA SERVER EDGE SERVERS Guida Utente Pagina 19