Server changed DNS to 8.8.8.8 now port 80 open

Discussion in 'all things UNIX' started by Ocky, May 16, 2016.

  1. Ocky

    Ocky Registered Member

    Joined:
    May 6, 2006
    Posts:
    2,677
    Location:
    George, S.Africa
    In the complex we stay I had poor fibre wireless broadband, phoned the provider/server at the complex and they changed the DNS in the wireless receiver to 8.8.8.8 (Google). Since then Shields Up shows ports 53, 80, and even 22 as open (22 is denied in the iptables). As all incoming connection ports are denied by default in Linux I am wondering what is going on. Is Shields Up somehow showing ports open despite them being closed ? I was also told to change the nameserver from the default 127.0.0.1 to 8.8.8.8 in /etc/resolve.conf

    What is going on here ?
     
  2. Mrkvonic

    Mrkvonic Linux Systems Expert

    Joined:
    May 9, 2005
    Posts:
    8,702
    You're probably not scanning your own host but the router, which is configured to allow common ports. Methinks.
    Mrk
     
  3. Ocky

    Ocky Registered Member

    Joined:
    May 6, 2006
    Posts:
    2,677
    Location:
    George, S.Africa
    Of course, silly me. Thanks.
     
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