SummaryWhen running Exinda, it is possible on occasion to see web traffic to MSN.com be classified as the application MSN, which is the definition for the MSN Messenger instant messaging application
OverviewThe Exinda, coming with default application definitions, classifies traffic in part due to those applications. One such classification is Instant Messengers. In the past, a popular instant messaging application was MSN Instant Messenger, run by Microsoft. The classification in the Exinda is meant to find all MSN Messenger traffic and put it into appropriately defined policies. It has been found that traffic to MSN.com (the news / homepage) can be classified as the application 'MSN' in the Exinda, and while this inherently doesn't pose a problem, it can adversely affect users if there are policies out there to throttle or discard all Instant Messaging traffic.
CauseMSN.com used to house servers for the instant messenger on subdomains. The MSN Messenger application and as a result, some traffic to the website of MSN.com can be classified as 'MSN'. If there are any policies that block the Instant Messaging application group or the MSN application, users might not be able to access MSN.com website.
ResolutionAs of October 2014, Microsoft shut down MSN Messenger to migrate their services to Skype. Skype has its own definition in the Exinda. Due to the fact that the MSN service no longer exists and all the servers for it have been shut down (which means there is no actual 'MSN IM' traffic out there), it is safe to consider all traffic that is classified as 'MSN' is actually traffic to the website MSN.com.
If there are policies on the Exinda to block or throttle the Instant Messaging group, traffic to MSN.com might be unreachable or slow. If this is the case, in order to keep blocking Instant Messaging, it would be safe to remove MSN from the Instant Messaging group by performing the following on the Exinda:
- Go to Configuration > Objects > Applications
- Under the "Application Groups" tab, editing the Instant Messaging group
- Find MSN in the list of items belonging to the group, and changing it to be blank (at the top of the drop down list)
- Click 'Save Changes'.