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donawalt

Contributor
Original poster
Sep 10, 2015
1,280
623
So today I happened to be looking at System Prefs/Network and below the entry in the left panel for my ethernet connection, I see "Radio Silence". The popup seems to imply its's a firewall or something. This is on a MacBook Pro 2021 M1. I think I deleted it (with the minus sign) and found all the places it had stuff, but there was no App in Applications or Utilities (unless the minus sign in the preferences deleted the app, as I did that first). Any ideas where it came from? I install very little on my Macs, I did install Wireshark network sniffer as we are debugging a problem (others are debugging - I am a software guy lol), but I also have Wireshark installed on a MacBook Pro Intel 2019 and it did not show up there. I installed SystHist in the last week from EclecticLight Company, so I think that is safe....would it have come from the 12.5.1 update? I am curious to know what it is in case a remnant is around somewhere, not knowing what it is. Thanks!
 

Honza1

macrumors 6502a
Nov 30, 2013
940
441
US
DId you try to Google that? I tried "macos Radio Silence" and found this: "Radio Silence is an outbound application firewall that lets you block Internet access from individual apps". May be came with Wireshark or SysHist? Or accidentally with something else?
 
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donawalt

Contributor
Original poster
Sep 10, 2015
1,280
623
Thanks @Honza1 Yes I did see that, but it didn't tell me much - plus I am doubtful it came from either of those...
 
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