Dynamic IP and content filtering

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18 comments

  • Avatar
    rotblitz

    You have to run an Updater which automatically keeps your IP address information updated at OpenDNS.

    https://support.opendns.com/entries/24889200-Dynamic-IP-Addresses-Technical-Detail-and-FAQ

    https://support.opendns.com/entries/23282614

    There are also some routers which allow updating OpenDNS, sometimes through DNS-O-Matic (https://www.dnsomatic.com/).

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  • Avatar
    paddy69

    Thanks!

    Yes, II am running an updater. It seems to recognize and update when the IP  address changes. But my selection of internet content filtering doesn't get applied to this new network. Should it?

     

    Phil

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  • Avatar
    rotblitz

    "my selection of internet content filtering doesn't get applied to this new network. Should it?"

    Yes, it should.  Why do you think it doesn't?

    It seems your settings do not take effect.

    If you can't solve your problem, post the complete plain text output of the following commands:

    nslookup -type=txt debug.opendns.com.

    nslookup www.example.com.
    where www.example.com is a domain which should be blocked but isn't.

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  • Avatar
    paddy69

    OK!

    With current settings and IP address.

    Yes using OpenDNS

     

    Yes IP address information all correct

     

    Stats were disabled but have now enabled them.

     

    SO: I pull the cable from my router, my IP address gets updated.

     

    Yes, using OpenDNS

    Yes, new information of IP address is there, it is in the box IP under heading ADD A NETWORK. If I now Add this network and apply my content filtering settings, fine. But if I leave it as it is, and try a website that should always be blocked, it now isn't!!!! And I thought the new IP address should just apply the content filters automatically without me having to go to do it manually!!??

    Phil

    See attached screen shot

     




    Capture.PNG
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  • Avatar
    rotblitz

    As I can see from the screen shot, your IP address information is not updated!

    Forget about the section "Add a Network".  Let's concentrate on the section "Your networks" only.

    See the green arrows?  These are between the currently outdated registered IP address (81.158.6.238) and your actual current IP address (85.165.31.57).  You can click the green arrows icon to manually update your IP address information for your network.

    But these updates should normally take place by running an Updater, but this doesn't seem to do its job correctly.  To get this corrected:

    • At https://dashboard.opendns.com/settings/ under LABEL, click "add a label" and give your network any believable name, e.g. "home".
    • In your Updater's settings, set the network identifier / hostname to the LABEL name, e.g. "home".
    • If you use the OpenDNS Updater, ensure you have not checked the "Send Dns-O-Matic updates" option under "settings".

    From now on your Updater should do its job.  Don't forget to initially flush both, your local resolver cache and your browser cache, so that your OpenDNS settings take effect immediately and not delayed.

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  • Avatar
    photoline

    Good day.. does the openDNS updater .. automatic update when my my pc is off... just my router only switch on. we have 10 client comp. and my question is does my filter block site stil work? or i just need to run openDNS updater again..

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  • Avatar
    Kristy Patullo

    The updater only runs when the computer you have it installed on is on.  Filtering will still work if this computer is off as long as your router is configured to use our DNS settings but if your IP address changes while the computer with the updater is off it will cause a gap in your stats/filtering because your IP address will not be updated in the dashboard.

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    photoline

    Tnx. Ms Kristy for the info

    another question.. ive notice that everytime i  log in .. the updater  notify me that the udater is updated less than a minute ago.. but when i browse the site whic  i had block.. the said block site i can still access it .. can you help me with this.. :(

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  • Avatar
    rotblitz

    @photoline
    Repeating from above:

    Post the complete plain text output of the following commands:

    nslookup -type=txt debug.opendns.com.

    nslookup www.example.com.
    where www.example.com is a domain which should be blocked but isn't.

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  • Avatar
    mrff39

    I am having exactly the same issue as the person who started this thread. I have tried rotblitz's suggestions regarding the openDNS updater and the problem remains. I have pasted the data from nslookup -type=txt debug.opendns.com.

    Server:  resolver1.opendns.com
    Address:  208.67.222.222

    Non-authoritative answer:
    debug.opendns.com       text =

            "server m5.syd"
    debug.opendns.com       text =

            "flags 20 0 8050 3950000180000000010"
    debug.opendns.com       text =

            "originid 83332034"
    debug.opendns.com       text =

            "actype 2"
    debug.opendns.com       text =

            "bundle 9914734"
    debug.opendns.com       text =

            "source 14.203.213.74:53343"

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  • Avatar
    rotblitz

    Your output looks good and indicates that your IP address 14.203.213.74 is registered with OpenDNS network ID 83332034.  Visit https://dashboard.opendns.com/settings/ to see if this is your network with the mentioned IP address registered.

    If not, then another OpenDNS user has your current IP address registered with his network.  Try to obtain another IP address, or open a support ticket with OpenDNS, so that the IP address registration can be released.

     

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  • Avatar
    eorge

    Hi,

     

    This happens to me also. Previous settings revert back to "none" with the change of the ip address. Please see the attached image. I'm using Ubuntu and configured ddclient as this post (https://askubuntu.com/questions/48568/configure-ip-updater-for-opendns) says. But still no use, settings change back to none everytime the ip changes.

    Please help! 

    Thank you

     

     

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  • Avatar
    rotblitz (Edited )

    It doesn't look like your settings reverted back to "none", but your IP address was not updated (click the green arrows icon to update manually).  Therefore your dashboard settings do not take effect.  As you use ddclient, you may be impacted by the fact that updates.opendns.com now requires HTTP 1.1, but ddclient supports just HTTP 1.0.

    See https://support.opendns.com/hc/en-us/community/posts/360040994471
    and send your updates through DNS-O-Matic going further.

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  • Avatar
    rotblitz

    You can use ddclient with OpenDNS directly again.
    https://support.opendns.com/hc/en-us/community/posts/360040994471/comments/360004838231

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  • Avatar
    eorge

    Hi rotblitz, thank you very much for your reply. All I want is for the ip to update automatically instead of me clicking those green arrows and updating it manually. And my ddclient is configured like this,

    daemon=300
    ssl=yes
    protocol=dyndns2
    use=web, if=myip.dnsomatic.com
    server=updates.opendns.com
    login=YOUR@EMAIL.COM
    password='YOUR_PASSWORD'
    all.dnsomatic.com

    is this correct? (sorry I'm new to all this). What should I do?

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  • Avatar
    rotblitz (Edited )

    The line
       use=web, if=myip.dnsomatic.com
    should look like
       use=web, web=myip.dnsomatic.com
    (The destination is a web page, not an interface.)

    Also, instead of  'all.dnsomatic.com', this must be the LABEL of your dashboard network, i.e. 'Home' or 'Office'.  At least this mistake prevents ddclient from performing a successful update.

    If it still doesn't work, you may need to replace the '@' character by a '%40' sequence.

    "All I want is for the ip to update automatically instead of me clicking those green arrows and updating it manually."

    Disagreed.  ddclient most likely updates only in case your IP address has changed.  If you want your settings taking effect now, you must update your dashboard network manually, e.g. at the dashboard or with the update URL.  Else you have to wait for an IP address change until ddclient performs an automatic update.  It's your choice!

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    eorge

    Hi roblitz, opendns works perfect after I changed the settings like you've mentioned. Thank you

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  • Avatar
    rotblitz

    Welcome!

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