What Is Port Mirroring ?

• Port Mirroring is the capability on a network switch to send a copy of network packets seen on a switch port to a network monitoring device connected on another switch port.
• Port Mirroring is also referred to as SPAN (Switched Port Analyzer) on Cisco Switches.
• Port Mirroring overcomes the limitation of promiscuous mode.

• By providing granular control on which traffic can be monitored

• Ingress Source

• Egress Source

• Helps in troubleshooting network issue by providing access to:

• Inter-VM traffic

• Intra-VM traffic

Squid : Reverse Proxy for OWA

Squid can be easily used to provide SSL acceleration services for Outlook Web Access. It can also speak SSL to the backend Exchange server. Later versions of Squid-2.6 support all the methods used by WebDAV by default. Please consider upgrading to at least the latest Squid-2.6 STABLE release before attempting this.

The example situation involves a single Outlook Web Access server and a single Squid server. The following information is required:

The IP of the Squid server (ip_of_squid)
The 'public' domain used for Outlook Web Access (owa_domain_name)
The IP of the Outlook Web Access server (ip_of_owa_server)



https_port ip_of_squid:443 cert=/path/to/certificate/ defaultsite=owa_domain_name

cache_peer ip_of_owa_server parent 80 0 no-query originserver login=PASS front-end-https=on name=owaServer

acl OWA dstdomain owa_domain_name
cache_peer_access owaServer allow OWA
never_direct allow OWA

# lock down access to only query the OWA server!
http_access allow OWA
http_access deny all
miss_access allow OWA
miss_access deny all