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  1. #1
    Newbie
    Join Date
    Jun 2020
    Location
    Germany
    Posts
    12

    Default Block DNS (suspisious entry)

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    Hello, do someone knows what this entry is and how to stop this? I have set a firewall rules for port 53 to block any dns routing.

    Firewall.jpg

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    [ ] Block pages from IP only hosts: When this option is enabled, users entering an IP address rather than domain name will be blocked.

    Would this block WhatsApp in some way, because I dont want to block WhatsApp in anyway. I saw often that WhatsApp has IPs only for chat.

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    [ ] Querying a DNS server over TCP or UDP.

    What would happen if I block this?

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    Can I block DoT port 853 with a firewall rule without any trouble?



    greetings
    Last edited by warcolour; 08-19-2020 at 03:54 AM.

  2. #2
    Untangler jcoffin's Avatar
    Join Date
    Aug 2008
    Location
    Sunnyvale, CA
    Posts
    9,380

    Default

    Remove the username and add the protocol : TCP/UDP
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