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zdykstra's avatar
zdykstra
Copper Contributor
Mar 12, 2021

Linux process port binds

I've started using Microsoft Edge Dev on my Linux workstation, and I noticed that msedge binds to a multicast address, a UDP port and a UDP6 port.  What are these listening sockets doing, and how do I disable them? I've looked through every configuration option I can find in the Settings section and nothing seems to be related to these socket binds.

 

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -
tcp6       0      0 :::22                   :::*                    LISTEN      -
tcp6       0      0 :::9100                 :::*                    LISTEN      -
udp        0      0 0.0.0.0:68              0.0.0.0:*                           -
udp        0      0 224.0.0.251:5353        0.0.0.0:*                           47505/msedge --type
udp        0      0 224.0.0.251:5353        0.0.0.0:*                           47464/microsoft-edg
udp        0      0 0.0.0.0:47167           0.0.0.0:*                           47505/msedge --type
udp6       0      0 :::43504                :::*                                47505/msedge --type
raw   214272      0 0.0.0.0:17              0.0.0.0:*               7           -
raw6       0      0 :::58                   :::*                    7           -

1 Reply

  • zdykstra's avatar
    zdykstra
    Copper Contributor
    Mar 12, 2021
    It looks like the two of the binds were from eBay. The :5353 binds were mDNS, and seem to be controlled by edge://flags/#enable-webrtc-hide-local-ips-with-mdns . Disabling that stops the multicast listeners. Though given what it actually does, it's not very offensive to have enabled.

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