5/1/2023 0 Comments Efax messenger firewall portIn addition I have found that blocking these two domains works as well to block the messenger app: As I mentioned in my first post, Facebook is using the MQTT protocol for messenger. Recently I have found two new DNS queries in my logs. I would really like to take a moment to berate the tards at Facebook for not keeping IT admins in mind when developing how the app (Messenger) connects to their servers. Upon initial login to facebook it looks like you are connected to chat, but then a few seconds later it shows you disconnected. Blocking the domains I mentioned only prevented users from using facebook chat in their browsers. By blocking the domains I mentioned the apps were unaffected. Blocking HTTPS works, but in this scenario I need to excise the disease not cut off the limb.Īny additional comments and\or recommendations are welcome and appreciated.įor those of you whom are curious I have some additional information regarding this topic. Short of utilizing a major UTM appliance (i.e. I have to admit there is VERY little information regarding how the facebook apps operate. I have enabled Instant Messaging on my OpenDNS and I will test to see if this resolves my problem. I would like to thank for his recommendation. The facebook messenger app however has not been effected. Navigating the site has not presented any problems thus far. To be honest I dont know which one of these blocks accomplished my goal, but as of now when you log into facebook the chat window at the bottom shows "disconnected". I achieved this by blocking the following domains in OpenDNS: As I stated in my original post I have managed to block facebook chat from working in the browser. I would appreciate any insight anybody has regarding this matter. Maybe the app has hard coded IP addresses which it uses to avoid using DNS. However blocking these ports has had no impact. I dont want to block the entire either since there is a need to use facebook.ĭoes anyone know what port the facebook messenger (android
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