Block team viewer



  • Good day

    How to do for block the team viewer by Port number?

    or URL IP?



  • @soyer2020 said in Block team viewer:

    How to do for block the team viewer by Port number?
    or URL IP?

    Hi,

    Teamviewer uses this port by default: TCP / UDP 5938, if this port is not usable it switches to 443 (or last but not least http 80) - so manipulating ports is not really a viable option.
    (you cannot block on these ports 443/80 😉 )

    On IP basis, the situation is no easier and difficult to follow (known IP ranges):

    178.77.120.0/25
    159.8.209.208/28
    92.51.156.64/26

    perhaps the best method: blocking DNS queries for *.teamviewer.com (with pfBlockerNG)


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