Hardcoded DNS Servers into the Firmware

Hi all,
I have WAG200G Linksys router and I need to customize it to force using of a specific DNS servers "as a kind of filteration"
Is it possible to:
1-edit the firmware to hardcode a specific DNS servers to be used by the router and all LAN users. I know that this could be done on the software level by specifiying the DNS servers in the router configurations. but I need this to be hardcoded.
2-if the first issue was applicable, is it possible to filter all DNS queries  generated by LAN users and pass only requsts to the hardcoded DNS servers. I need to implement this as LAN users might simply specify static DNS servers on their computers to bypass filteration done at the router level.
Thanks in advance ! 

Answer would be NO unless you have an OpenSource firmware or a 3rd party firmware that you can self-code and load into a WAG200. Other than that you can only specify DNS Addresses within the router webUI. It would be best if you will set up a DNS Server and have all computers go through it so that you can control whatever DNS-related stuff you want. Also, you will mess up your network access if you assign static DNS addresses since the primary computer query will have to go through your DNS Server. This would discourage network users from assigning their own Static DNS Servers.

Similar Messages

  • Can you modify the roll-up schedule for child servers into the parent?

    We have one parent server (which server some clients directly) and two child servers.  There appears to be a large delay (maybe 2 hours) between when a server reports into a child server and when that update reaches the parent server.  We would
    like to be able to query the master server on patch night and get an up to date accounting of patch status without having to wait for the roll-up.  Is there any way to change the roll up interval or to force a roll-up on demand (say right before generating
    a report of approved patches)?
    Tom

    Here is the scenario:  The clients are set for a 3 hour detection frequency, and on patch day the patches are approved at least 3 hours before the earliest patch time.  The first patch window starts at 8:00PM on patch night and the servers are
    set to patch and reboot, so they start installing at 8:00 and after they finish and reboot they always report in to their reporting server within a few minutes after startup.
    This scenario is almost certainly doomed on principle from the start. Consider the following sequence of events that must occur between the time you approve the updates on the USS and the client system wants to install the update (at 8:00pm).
    The USS WSUS Server downloads the files for the approved updates from Microsoft. (This could run from minutes to an hour or more depending on the number of updates and available bandwidth, and I'm considering a liberal Internet connection for this activity.)
    The DSS WSUS Server(s) synchronize with the USS. The first sync event following the completion of any given update download will trigger the download of that file to the DSS as well. (How often your DSS syncs will drive this delay.)
    The DSS completes the download from the USS. (Like #1, this could run from minutes to hours, depending on the number of updates and available bandwidth.)
    The client system executes a detection with the assigned DSS and discovers that an approved update has a file available for download. (How often your client executes a detection will drive this delay, and even with a 3-hour detection, the client only has
    max TWO possible opportunities to find these updates between 10am and 8pm.)
    The client system completes the download from the DSS. (And these downloads must be completed BEFORE 8pm in order for the WUA to actually schedule the updates to be installed.)
    As such, the practicalities of getting from approval (even assuming mid-morning for that event) to fully downloaded by 8pm (so a total time span of ~10 hours end-to-end) is flirting with failure.
    For best results to make your 8:00pm installation time, you really need to approve the updates at least 24 hours in advance, and to ensure they get to the replica servers, probably closer to 48 hours in advance, all depending on what the actual
    DSS synchronization interval is, and the available connection bandwidth between the DSS and USS, and the USS and Microsoft.
    We would like to be able to see if all servers have patched as soon as possible after 8:00PM so we can start troubleshooting them and get them patched.
    The first hurdle here is when those systems are restarted after the updates are installed (assuming that the updates have actually gotten to the client system in time to be installed at all). The client system reports back to the assigned replica WSUS server
    following the restart. That state information is then uploaded to your upstream WSUS server during the next DSS server synchronization event. In addition, the reporting events from both the client-to-DSS and DSS-to-USS are processed asynchronously inside the
    database.
    The only way you could get that data "as soon as possible" is to set the client detection frequency to 2 hours, the DSS synchronization to 12 times per day, and even then, there's a potential delay of up to four hours between client restart and the
    availability of that status data at the upstream WSUS server. In order to get anything more "real time" than this, you'd have to implement a managed deployment tool such as
    SolarWinds Patch Manager.
    Furthermore, there are significant disadvantages to having 2-hour detections and 12x daily synchronizations, in terms of the amount of noise generated in the form of "events" reported at each of those activities a dozen or more times a day.
    Lawrence Garvin, M.S., MCSA, MCITP:EA, MCDBA
    SolarWinds Head Geek
    Microsoft MVP - Software Packaging, Deployment & Servicing (2005-2014)
    My MVP Profile: http://mvp.microsoft.com/en-us/mvp/Lawrence%20R%20Garvin-32101
    http://www.solarwinds.com/gotmicrosoft
    The views expressed on this post are mine and do not necessarily reflect the views of SolarWinds.

  • Airport not distributing DNS servers over network

    Hi everyone,
    I connect to the Internet over ADSL (ISP: Arnet Highway, Buenos Aires, Argentina) using PPPoE from my MacBook Pro.
    I have my ADSL modem connected to the Airport Extreme (802.11n) and distributing IP over DHCP just fine. Every device that joins the network obtains a valid IP.
    However, DNS servers aren't distributed by the router over the network. Every connected device has to be manually configured to set the DNS servers of my ISP to be able to resolve hosts, instead of 'asking' these addresses to the router, as it should be.
    Initially I thought there might be a problem obtainig the DNS servers from the ISP. So in the Airport Utility, in Internet / PPPoE settings, I've manually set my ISP's DNS servers, which should be distributed over the network to all connected devices.
    This doesn't happen, and every somebody new joins my wireless network I have to manually change the DNS servers for that connection which, as I'm sure you'll agree with me, can be quite annoying. Not to mention what would happen if my ISP decides to use dynamic DNS addresses.
    Thanks for any help you might provide.
    Cheers.

    Hello belbo,
    I connect to the Internet over ADSL using PPPoE from my MacBook Pro.
    Is your Macbook Pro Network configured to use PPPoE or DHCP?
    I have my ADSL modem connected to the Airport Extreme (802.11n) and distributing IP over DHCP just fine. Every device that joins the network obtains a valid IP.
    Is NAT enabled on the AE? Are the valid IP Address obtained from your ISP or from the AE?
    However, DNS servers aren't distributed by the router over the network. Every connected device has to be manually configured to set the DNS servers of my ISP to be able to resolve hosts, instead of 'asking' these addresses to the router, as it should be.
    When you setup the AE to use PPPoE did you enter a Domain Name or a DHCP Client ID?
    Initially I thought there might be a problem obtainig the DNS servers from the ISP. So in the Airport Utility, in Internet / PPPoE settings, I've manually set my ISP's DNS servers, which should be distributed over the network to all connected devices.
    The DNS servers listed in the AE aren't distributed to each Network Device but are only used to translate names into IP addresses when need by a Network Device.
    This doesn't happen, and every somebody new joins my wireless network I have to manually change the DNS servers for that connection which, as I'm sure you'll agree with me, can be quite annoying. Not to mention what would happen if my ISP decides to use dynamic DNS addresses.
    If your AE is distributing IP Address using DHCP and NAT then this should not be a problem but I'm not sure without more information about the questions I asked.
    Later.
    Buzz

  • Changing settings for DNS Servers?

    I need to enter some DNS settings in order to use certain programs on the network. On a Windowz machine, these settings are entered into an area called DNS suffixes.
    I go to Network and try to enter the names into DNS Servers, though it is only allowing me to enter certain characters. For example, it will not let me enter a "l" or a "p." Why is this?
    Thanks.

    The only thing you can enter for DNS servers is the actual IP address in the form: xxx.xxx.xxx.xxx, e.g., 192.0.100.40

  • How do I set a manual IP address and manual DNS servers for my HP Photosmart 7525 Printer?

    Cannot print.  Had difficulty when printer was initially set up.  Assstance from "happytohelp01" resolved the issue by advising me; a manual IP address andmanual DNS servers for the printer.  I did not write down the information and now my printer is not working (it did work for about a month), now nada.  I initially had problems connecting to the web server - now its doing the same thing, but I don't know what IP adderss and DNS to use.  Please help if you can.
    This question was solved.
    View Solution.

    Hi @LaceyNo1,
    Welcome to the HP Forums!
    I understand that you are wondering, how to set a manual IP address, and manual DNS servers for your HP Photosmart 7525 Printer. I am happy to look into this for you!
    After some searching, I believe I have found the post, that my colleague @happytohelp01, helped you with. Located at this post, Re: Photosmart 7525.
    Hope this is what you were looking for, and have a good day!  
    RnRMusicMan
    I work on behalf of HP
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos Thumbs Up" to say “Thanks” for helping!

  • Error message: "Logging into the account failed because an error occurred."

    Hello,
    We had an XServe G5 2.0 DP 5GB/80/2x250 running Mac OS X 10.3.9 Server with all updates as a main server for a school. The server provides Open Directory Master as well as File-Sharing (AFP and SMB) and e-mail services to about 30 teachers and 300 students. The user home directories reside on the server. A web server also runs on the machine. The students use a pool of laptops, which are configured with a local guest and admin account as well as access to the server-based home directories with Directory Access. The server had the OS running on the 80 GB hard drive and all data (Home directories, mail database, website, etc. were on the two mirrored 250 GB drives.) All was working well until...
    A few weeks ago, one of the two 250 GB died. We decided to use the opportunity to upgrade the server and set it up with 3 x 750 GB, two drives running as a mirrored pair to hold OS AND Data, the other as a stand-by unit to help replace a failing drive.
    We migrated the OS and all data from the previous drives without a problem. Since now, all data is residing on one pair of drives, we put the data from the old "Data" drive in a folder on the root level of the new HD pair. We wrote a script that launches at startup which creates the symlink in /Volumes/Data to link to /Data. We thought that with this, all would be well.
    However: When any user tries to log into his account from any iBook (10.3.9 or 10.4.11) (wirelessly), he gets the message:
    "Logging into the account failed because an error occurred. The home folder for the user account is located on an afp or smb server. contact your system administrator for help"
    If the user logs in to the guest account on the iBook, then accesses his home directory via file-sharing, he can see (read/write) all his data. So, the data and privileges seem to be OK, as well as Open Directory working correctly. Mail and the web work well also, as does logging in to a user account from one of the PC's (wired).
    Can anyone make any suggestions as to how to fix the situation? Currently, the users are using the guest accounts and accessing their data via filesharing, as well as using webmail for their e-mail, but this is a major nuisance.
    Any help will be greatly appreciated.
    Best regards,
    Alain Chammas
    A user trying to access his account from a PC (wired) has no problems.

    A good number of folks are having problems with this same error message at login, and nobody seems to have found a fix.
    I believe I have stumbled upon, if not a solution, at least part of the answer. If you're logged into a 10.4 workstation, open a Finder window and click the "Network" icon. The first time you do this, you'll only see "Library" and "Servers" icons, but if you let it sit for a moment, other folders will magically appear. One of these is "My Network" which is the critical part.
    In Workgroup Manager, edit one of your users' home directory configuration. There's a URL piece, usually "afp://server.domain.com/Users" (which is what shows up in the window when you click on the "Home" tab for that user), and then there's a "Home" path that is usually something like "/Network/Servers/servername/Users/username". Trouble is, you've noticed that 10.4 doesn't put servers into the "Servers" path, but rather into the "My Network" path.
    So, if you change that "Home" path to read "/Network/My Network/servername/Users/username", it should work--with one caveat. Apparently 10.4 doesn't create the "My Network" path on a given client until you actually browse the network on that client. If you haven't logged into a 10.4 workstation and browsed the network, the "My Network" path won't be there, and you'll still get the error. Login as a local user, browse the network (so that the "My Network" folder shows up), logout, and then login as an Open Directory user, and it should work.
    I'm betting that 10.3, 10.4, and 10.5 all handle this issue differently, so if you're in a mixed-version situation, you may have to experiment to find a workable fix.
    Derndest thing I ever saw.

  • How do you setup a server to use multiple DNS servers that are not connect to each other?

    Is there a way to setup a server that connects to two different domains to use the proper DNS server for name resolution?
    Let say there are two DCs: serverA.subdomaina.domain.com and serverB.subdoamainb.domain.com.  The domains are independent and not connected.  Now you need a common server that is connected to both and need to resolve names from both
    domains.
    Is this possible?
    I have setup a server in a workgroup.  One NIC has the subdomaina.domain.com connection specific suffix and the other nic has the subdomainb.domain.com.  Each NIC has the DNS server listed for the domain it is connected to.
    This configuration will resolve FQDNs of one domain but not the other.  This I believe is due to the fact the server only querys one DNS server and doesn't try the other DNS server.
    Is there any way to make the server try another DNS server, if the first one doesn't have the entry?

    Hi,
    Thank you for posting in Windows Server Forum.
    Here adding to the words of “Tim”, a forwarder is a DNS server on a network used to forward DNS queries for external DNS names to DNS servers outside of that network. You can also forward queries according to specific domain names using conditional forwarders.
    A DNS server on a network is designated as a forwarder by having the other DNS servers in the network forward the queries they cannot resolve locally to that DNS server. You can refer information regarding forwarders and how to configure from beneath link.
    Understanding forwarders
    http://technet.microsoft.com/en-us/library/cc782142(v=ws.10).aspx
    Configure a DNS Server to Use Forwarders
    http://technet.microsoft.com/en-us/library/cc754941.aspx
    Hope it helps!
    Regards.

  • IronPort ESA best practice for DNS servers?

    Hello!
    Is there a best practice for what servers should be used for the Cisco IronPort DNS servers?
    Currently when I check our configuration, we have set it to "Use these DNS servers" and the first two are our domain controllers and last two are Google DNS.
    Is there a best practice way of doing this? I'm thinking of selecting the "Use the Internet's Root DNS Servers" option as I can't really see an advantage of using internal DC's.
    Thoughts?

    Best practice is to use Internet Root DNS Servers and define specific dns servers for any domain that you need to give different answers for. Since internal mail delivery is controlled by smtproutes using internal dns servers is normally not required.
    If you must use internal dns servers I recommend servers dedicated to your Ironports and not just using servers that handle enterprise lookups as well. Ironports can place a very high load on dns servers because every outside connection results in multiple dns lookups. (forward, reverse, sbrs)
    If you don't have enough dns horsepower you are susceptible to a DOS attack either through accident or design. If the Ironports overload your internal dns servers it can impact your entire enterprise.

  • External DNS zone on Internal DNS servers

    We currently have a 2 domain forest with DNS running on all domain controllers. All domain controllers are 2012 or 2012 R2 and our Domain and forest functional level is set at 2008 R2 due to the existence of an exchange 2003 server which wont be retired
    for several months. We have 2 DNS servers in the root domain and 4 DNS servers in the child domain. This is a centralized DNS setup. Our parent domain is DOMAIN.LOCAL and the child domain is XX.DOMAIN.LOCAL. Externally, our DNS is MYDOMAIN.com. we
    do not have a public facing DNS server and our DNS records are hosted by a 3rd party
    We want to add the MYDOMAIN.COM DNS zone internally (AD Integrated) since we have several instances where applications do not really work well with the XX.DOMAIN.LOCAL DNS. We want this zone to host several DNS records for internal resolution
    only since we do not have any public facing applications or web servers such as SharePoint etc.
    My question(s) is this?
    How is the best way to do this and how will it affect the zones we currently have in place.
    Is it as simple as creating a new forward lookup zone, adding static records?
    How do we (or do we) handle delegation?
    Any information or suggestions to get me started would be greatly appreciated.
    Russ

    Hi,
    I’m not quite understand your question, do you want to create a new primary DNS zone on your current DNS server? If so, you
    just need to create a new primary, you can create the additional primary DNS zone.
    The related KB:
    Configuring a new primary server
    http://technet.microsoft.com/en-us/library/cc776365(v=ws.10).aspx
    Hope this helps.
    We
    are trying to better understand customer views on social support experience, so your participation in this
    interview project would be greatly appreciated if you have time.
    Thanks for helping make community forums a great place.

  • Manually set DNS servers in BT Homehub 2.0 with BT...

    Rather than having to se my DNS manually in network connections I was wondering if there was a setting on the homehub for changing DNS servers as I would like to use OpenDNS so I can test their web filtering capabilities.
    I have browsed the hub settings but there doesn't appear to be any setting to set DNS servers statically, it seems automatically use BTs DNS servers when the connection is live.

    Hi hippomango, your solution to override the DNS settings in the BT Homehub sounds interesting - except that I cannot get them to work!?
    I have a BT Homehub 3.0 (yes, you still can't override the default DNS settings), but I can't see that making much of a difference. I can't get any of the computers (wired or wireless) to use the OpenDNS settings in the 2nd router, they always find the BT DNS.
    Wondering if you can explain some more detail about your set up if possible?
    - Presumably your BT Hub is still your default gateway?
    - Your 2nd router (Netgear) has the BT Hub as the default gateway?
    - All computers are DHCP? Or do you have some static? (At least 1 of my machines needs a static local IP, but DHCP for the majority)
    TBH, I don't know how the DMZ helps in this case? (But that may be because I don't quite understand what's going on!) Doesn't the DMZ influence incoming traffic? Don't we want to direct outbound traffic?
    Thanks for any info.

  • Error upon logging into the database

    We've been having this intermittent occurrence, where the following error pops up upon logging into a database instance (SQL Developer is already open)
    java.lang.NullPointerException
         at oracle.dbtools.raptor.utils.TNSHelper$2.compare(TNSHelper.java:349)
         at java.util.Arrays.mergeSort(Arrays.java:1270)
         at java.util.Arrays.mergeSort(Arrays.java:1281)
         at java.util.Arrays.mergeSort(Arrays.java:1281)
         at java.util.Arrays.mergeSort(Arrays.java:1281)
         at java.util.Arrays.mergeSort(Arrays.java:1282)
         at java.util.Arrays.sort(Arrays.java:1210)
         at java.util.Collections.sort(Collections.java:159)
         at oracle.dbtools.raptor.utils.TNSHelper.getTNSEntries(TNSHelper.java:355)
         at oracle.dbtools.raptor.utils.TNSHelper.getEntry(TNSHelper.java:216)
         at oracle.dbtools.raptor.utils.Connections.populateConnectionInfo(Connections.java:645)
         at oracle.dbtools.raptor.standalone.connection.RaptorConnectionCreator.getConnection(RaptorConnectionCreator.java:62)
         at oracle.dbtools.raptor.dialogs.conn.ConnectionPrompt.promptForPassword(ConnectionPrompt.java:67)
         at oracle.jdeveloper.db.adapter.DatabaseProvider.getConnection(DatabaseProvider.java:321)
         at oracle.jdeveloper.db.adapter.DatabaseProvider.getConnection(DatabaseProvider.java:254)
         at oracle.jdevimpl.db.adapter.CADatabaseFactory.createConnectionImpl(CADatabaseFactory.java:60)
         at oracle.javatools.db.DatabaseFactory.createConnection(DatabaseFactory.java:534)
         at oracle.javatools.db.DatabaseFactory.createDatabase(DatabaseFactory.java:208)
         at oracle.jdeveloper.db.DatabaseConnections.getDatabase(DatabaseConnections.java:607)
         at oracle.jdeveloper.db.DatabaseConnections.getDatabase(DatabaseConnections.java:562)
         at oracle.dbtools.raptor.utils.Connections$ConnectionInfo.getDatabase(Connections.java:145)
         at oracle.dbtools.raptor.utils.Connections.getConnection(Connections.java:874)
         at oracle.dbtools.raptor.utils.Connections.getConnection(Connections.java:855)
         at oracle.dbtools.raptor.navigator.DatabaseConnection.openConnectionImpl(DatabaseConnection.java:117)
         at oracle.dbtools.raptor.navigator.AbstractConnectionNode.getConnection(AbstractConnectionNode.java:30)
         at oracle.dbtools.raptor.navigator.ConnectionFilter.getFactory(ConnectionFilter.java:92)
         at oracle.dbtools.raptor.navigator.ConnectionFilter$1.doWork(ConnectionFilter.java:117)
         at oracle.dbtools.raptor.navigator.ConnectionFilter$1.doWork(ConnectionFilter.java:102)
         at oracle.dbtools.raptor.backgroundTask.RaptorTask.call(RaptorTask.java:193)
         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
         at oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$RaptorFutureTask.run(RaptorTaskManager.java:492)
         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
         at java.lang.Thread.run(Thread.java:619)What's strange is if that person closes SQL Developer and refrains from using it for about 20 minutes, everything works fine the next time they re-open the tool & try to log in. The issue seems to affect the Developer team in a round-robin fashion too, never hitting the same person 2 times in a row.
    We're using SQL Developer in a Citrix environment, and no one else has the problem simultaneously. Does anyone see something useful in the error message above?
    Thanks
    --=Chuck
    SQL Developer Version 2.1.0.63

    A good number of folks are having problems with this same error message at login, and nobody seems to have found a fix.
    I believe I have stumbled upon, if not a solution, at least part of the answer. If you're logged into a 10.4 workstation, open a Finder window and click the "Network" icon. The first time you do this, you'll only see "Library" and "Servers" icons, but if you let it sit for a moment, other folders will magically appear. One of these is "My Network" which is the critical part.
    In Workgroup Manager, edit one of your users' home directory configuration. There's a URL piece, usually "afp://server.domain.com/Users" (which is what shows up in the window when you click on the "Home" tab for that user), and then there's a "Home" path that is usually something like "/Network/Servers/servername/Users/username". Trouble is, you've noticed that 10.4 doesn't put servers into the "Servers" path, but rather into the "My Network" path.
    So, if you change that "Home" path to read "/Network/My Network/servername/Users/username", it should work--with one caveat. Apparently 10.4 doesn't create the "My Network" path on a given client until you actually browse the network on that client. If you haven't logged into a 10.4 workstation and browsed the network, the "My Network" path won't be there, and you'll still get the error. Login as a local user, browse the network (so that the "My Network" folder shows up), logout, and then login as an Open Directory user, and it should work.
    I'm betting that 10.3, 10.4, and 10.5 all handle this issue differently, so if you're in a mixed-version situation, you may have to experiment to find a workable fix.
    Derndest thing I ever saw.

  • List all DNS servers in an AD Forest

    Is there a way (preferably powershell, of course!) to find all DNS servers in an AD forest?  Not domain controllers running DNS but ANY Windows servers running DNS.
    Here is the situation...I have one root domain to which I am adding a new domain controller.  There are roughly 20 child domains which should all have their dns servers set to forward to my root domain for unresolved queries.  I need to change the forwarders on all DNS servers in the Forest (I've got that part figured out).  However, I know that not all Domain Controllers in all of the domains are DNS servers and vice versa (not all DNS servers in the domains are domain controllers).
    So...anything that I can query to find all dns servers in the Forest (short of querying every server in the Forest for the existence of the DNS Server service?)
    I've searched but can't seem to find anything in wmi.
    Thanks,
    Nate

    That would just list all DCs within a domain (not even in the entire forest).
    You can use DNSLint (http://support.microsoft.com/kb/321045) or dnscmd (assuming you’re hosting your AD DNS Zones on Microsoft DNS Servers) to query for
    NS records.
    Regards
    Christoffer Andersson – Principal Advisor
    Enfo Zipper
    "EXRAPUL" wrote in message news:ea6d0f00-0bc0-4786-b63b-c618e51ff264...
    Hi Nate,
    Yes, we can find list of DNS servers by using a command "nltest".
    Here is the syntax nltest/dnsgetdc:<forest name>
    example: nltest/dnsgetdc:microsoft.com
    Enfo Zipper Christoffer Andersson – Principal Advisor

  • MY DNS servers are so slow, i've tried almost everything please help

    So my internet was a bit slow two weeks ago, so I downloaded namebench which gave me two dns servers that were faster, I updated my network preferences and everything seemed to work fine until a day later where the internet became  wayyy sloower than before, youtube is slow, google chrome, safari etc... things i've tried: deleting history, cache and cookies. I've tried cleaning my computer off unwanted apps ,  I've tried contacting comcast and  I gave them permission and the tech manually took told of my screen and went through terminal trying to flush out the DNS servers, but for a lil bit it gave us a DNS failure code, than  than went back to being waaaay slow. I thought it was a virus or malware so I got Sophos it found one malware that i deleted but things are still slow. All the other computers at my house are fast except mine. I've tried going back to my previous DNS before the namebench assigned ones but it's still slow... so I added open servers 8.8.8.8 and than 8.8.4.4 . and these aren't working either.  so even though my internet is slow I downloaded Maverick today and things are still wayy slow, I have full bar on my wifi please help. thankswhat else to do.

    Adding Open DNS codes to your Network Preferences, should give good results in terms of speed-up* as well as added security, (including anti-phishing and redirects) (Full information about Open DNS is here:   http://www.opendns.com/home-solutions and here:  http://www.opendns.com/technology/opendns-vs-google-public-dns/ )
    and further independent information can be read here:
    http://reviews.cnet.com/8301-13727_7-57338784-263/free-dnscrypt-tool-enhances-ma c-web-security/?tag=mncol;txt
    and here:
    http://www.macworld.com/article/1146064/troubleshootdns.html?t=234
    * as confirmed by: http://lifehacker.com/5835775/google-dns-and-opendns-users-are-getting-a-web-spe ed-boost
    and Apple:
    http://support.apple.com/kb/TS3408?viewlocale=en_US
    but results may vary depending on where you are located.
    Open System Preferences/Network. Double click on your connection type, or select it in the drop-down menu, and in the box marked 'DNS Servers' add the following two numbers:
    208.67.222.222
    208.67.220.220
    (You can also enter them if you click on Advanced and then DNS)
    Sometimes reversing the order of the DNS numbers can be beneficial in cases where there is a long delay before web pages start to load, and then suddenly load at normal speed:
    http://support.apple.com/kb/TS2296

  • Shunned Packet to DNS Servers

    Having an issue with repeated Shunned Packets in the ASFM Syslog.  I was going to call support, however I'm not sure if I can even explain the issue, if there even is an issue, that is why I need your help.
    I'm Getting a constant stream of Shunned packets in yellow.  The 69.x.x.x are my DNS Servers in the DMZ. 
    Shunned packet: 37.57.61.86 ==> 69.x.x.91 on interface outside  
    Shunned packet: 37.57.61.86 ==> 69.x.x.92 on interface outside  
    I noticed this when I moved them to my VMware server, however I do not know if I was getting this before I moved or not.
    Cisco Adaptive Security Appliance Software Version 9.1(4)
    Device Manager Version 7.1(5)
    Cisco Adaptive Security Appliance Software Version 9.1(4)
    Device Manager Version 7.1(5)
    I'd appreciate any advice.
    Lon

    It should change automatically when you modify the parameters. No need to stop/start dhcp for that.
    As as an alternative, it will certainly be updated when the clients are rebooted.
    Best is to change it after office hours, systems will be updated when the users start their PC's in the morning.
    regards,
    Leo

  • Should i use google dns servers?

    heard it speeds up the internet with faster dns lookups & its very reliable.. should i use it instead of BT's?

    There is also the similar DNSBench as well as namebench mentioned above.  http://www.grc.com/dns/benchmark.htm
    I think pretty similar, though namebench is hanging for me at the moment and DNSBench is working.
    OpenDSN servers sometimes divert quite a lot of calls to go via OpenDNS servers.  This is partly to add filtering features to the result.  It means that even though their DNS servers are fast (far from fastest for me), common web access (including Google search) is sometimes a little slower than it should be.  This can be got around by explicity configuring of your OpenDSN services at the OpenDNS site.
    I think it possible that Google's servers do data mining on your DNS requests.  I'm not sure if this is the case, and you may not mind anyway.
    It is worth setting up DNS servers using different people for primary and secondary (and tertiary), as this increases resilience in the unikely case of a major failure of OpenDNS or Google DNS or whoever.
    My current choice is   194.73.82.242, 212.118.241.1, 217.72.163.3  (BT Telehouse, InternapUK, HotChilli).  They were best according to DNSBench at some point, and have never been significantly worse than best to be worth changing.
    To me, inability to set DNS servers at the router is the weakest point of the the HomeHub.

Maybe you are looking for