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  • How to Setup Your Verizon FIOS Router with OpenDNS or Google DNS

    - by The Geek
    Are you still using your service provider’s DNS servers? You might have heard about Comcast’s DNS servers dying and taking down the internet for anybody not using the more reliable OpenDNS or Google DNS. Here’s how to set it up on your Verizon FIOS router for every device on your network. There’s lots of other reasons to use OpenDNS or Google DNS other than just their rock-solid reliability—they are often much faster than your ISP’s DNS server, and in the case of OpenDNS, there’s loads of extra features like content filtering, typo correction, anti-phishing, and child protection controls. If you’re using Windows, be sure and check out some of our other articles on the subject: Speed Up Your Web Browsing with Google Public DNS Easily Add OpenDNS To Your Router Protect Your Kids Online Using Open DNS Otherwise, keep reading for how to set it up on your router. Latest Features How-To Geek ETC The Complete List of iPad Tips, Tricks, and Tutorials The 50 Best Registry Hacks that Make Windows Better The How-To Geek Holiday Gift Guide (Geeky Stuff We Like) LCD? LED? Plasma? The How-To Geek Guide to HDTV Technology The How-To Geek Guide to Learning Photoshop, Part 8: Filters Improve Digital Photography by Calibrating Your Monitor Deathwing the Destroyer – WoW Cataclysm Dragon Wallpaper Drag2Up Lets You Drag and Drop Files to the Web With Ease The Spam Police Parts 1 and 2 – Goodbye Spammers [Videos] Snow Angels Theme for Windows 7 Exploring the Jungle Ruins Wallpaper Protect Your Privacy When Browsing with Chrome and Iron Browser

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  • no way to use opendns on pppoe connection?

    - by magisterludi
    I have an old speedtouch usb modem (revision 0) and on my desktop with xubuntu 12.04 I've configured a pppoe connection. I can connect and my ISP assign an IP address and the DNS but the primary DNS address is not reachable by ping, the secondary yes but no address is resolved then I can't surf the web. Then I want to set the open DNS but there is bo way, if I change manually /etc/resolv.conf it is rewrited by some script (there is the flag usepeerdns on the configuration script, if I exclude it there is no way to assign any DNS server because resolv.conf is not read) also if I set not writable the file changing the default permission. I changed dhclient.conf with the code prepend domain-name-servers 208.67.222.222,208.67.220.220; and now if I connect by a wifi connection to my router I'm using openDNS server but ppp does not use this script as long as I can see and the DNS server is always setted by my ISP. How can I use set DNS manually to a PPP connection? Is there any way to change it after the connection? Why NetworkManager is not able to manage my dsl connection, it seems not able to manage the dsl usb cable modem. If I use pppoeconf NetworkManager doesn't start and I have to manually delete the lines added to /etc/network/interfaces because the system is not able to start with full configuration of network If I connect a modem-router to the same line I can surf with the DNS server assigned by my ISP, I can't figure why. Some suggestion? Thanks to all

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  • Transition domain to new web host without waiting for DNS propagation

    - by jcmoney
    I was considering switching to Amazon EC2 to host my website to handle more traffic. It seems like I would have to update DNS records to point to the new server but I was wondering if there was a way to avoid having to wait for the new DNS record to propagate. Putting the code on both hosts would not work for me since the app writes to a database pretty frequently. I thought about just using a meta redirect or php redirect on the old host to redirect to the new host ip but was wondering if there's a better more accepted way of doing this.

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  • How long does a reverse DNS lookup take?

    - by HansA
    How long should I expect a reverse lookup take? 100 milliseconds? 1 second? 10 second? 30 seconds? What's your experience? Why? We're debating adding a feature to our server software which would require a reverse DNS lookup each time a client connects. The lookup would be done synchronously, so I'm worried that it could slow connection-times down a lot. I just wanted to hear other people's experience regarding reverse DNS lookup times.

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  • Dns caching for sockets

    - by Poma
    I'm connecting to some websites through socks proxy server. In my case its very good to implement dns cache, so proxy don't need to resolve website's ip address. So, I performed DNS lookup, but don't know where to supply IP address. mySocket.Connect uses proxy's ip address so it isn't right place. I tried to place it in http header GET http://11.22.33.44/index.html HTTP/1.1 - this doesn't work (even in browser) since website is on virtual hosting. It seems that Host header is right place for resolved ip address. Am I right? Will proxy resolve host name (since it's still there in GET header) or not?

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  • Manage DNS Zone in "slave" Mode with MS Windows 2008 R2

    - by kockiren
    Hello @all following issue, I configure a DNS Zone "location.domain.tld" for my internal Network and it works well, but now I want to manage the domain.tld for my internal Network, but the domain.tld is managed by an external DNS Provider. In location.domain.tld there are all Clients and Servers for internal use only (with local IPs) all these clients resolve the global Mailserver (for example) over his external Address but now i want to catch single Domainnames and resolve it on my own way. But i did not find a way to solve this issue. Any Ideas? Regards Rene

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  • DNS Lookup in simple C#/asp.net ajax call is extremely slow

    - by Ryan
    I'm running this out of the VS 2008 debugger on Windows 7, running .Net 3.5. The idea was to make all ajax requests with jQuery only, rather than .net, following some tutorials online. Default.aspx - HTML page, jquery triggers method in Default.aspx.cs http://pastebin.com/pxBvKA2H Default.aspx.cs - C# Webform, just defines a GetDate fuction, which only returns a string for now (trying to eliminate any possible issues) (can only post one hyperlink...) pastebin.com/pnHn50hu The ajax query takes longer than it should. Profiling with firebug revealed that it took 1.03 ms. 1s DNS Lookup | 26ms Waiting | 1ms Receiving EDIT: It continues to take the same set of times if you continue to click and resubmit the request. Is there anything I can do to cut down on the DNS Lookup time / what did I do wrong? Thanks for any help.

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  • DNS Problem in my notebook [closed]

    - by air
    i have windows 2003 server domain environment in my office. my server ip is: 192.168.1.2 if i put this IP in DNS of my laptop network card my folder SYNC works fine & also internet work fine in office. but internet did't work in my home for that i need to change DNS again to Auto & internet start working again. its too difficult to change cause some time i don't have administrative password. is there any solution to that? Thanks

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  • Ideal timeout period for dns lookup

    - by railscoder
    In my rails app i do a nslookup using a ruby library resolv. If the site like dgdfgdfgdfg.com is entered its talking too long to resolve. in some instance like 20 sec.(mostly for non-existent sites) Because it cause the application to slowdown. So i though of introducing a timeout period for the dns lookup. What will be the ideal timeout period for the dns lookup so that resolution of actual site doesnt fail. will something like 10 sec will be fine?

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  • Record Name field in DNS responce

    - by Lescott
    I just read about DNS protocol, and found, that the name field can be writen in two ways: lenght of the next label the label lenght of the next label the label ... zero-byte pointer to the previous name field Next is the original article fragment: The Resource Record Name field is encoded in the same way as the Question Name field unless the name is already present elsewhere in the DNS message, in which case a 2-byte field is used in place of a length-value encoded name and acts as a pointer to the name that is already present. So, my question is, how can I determine the first or the second way is using in a package?

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  • How to set multiple nameservers in /etc/resolv.conf which sticks on reboot?

    - by chrone
    Ubuntu 14.04 Server edition only displays "nameserver 127.0.0.1" in "/etc/resolv.conf" on each reboot if the dns-nameservers in "/etc/network/interfaces" contains 127.0.0.1 and some other DNS such as Google Public DNS. On /etc/network/interfaces I set as follows: dns-nameservers 127.0.0.1 8.8.8.8 But after a reboot, /etc/resolv.conf gives me this: nameserver 127.0.0.1 Shouldn't the "nameserver 8.8.8.8" listed in the /etc/resolv.conf too? Thanks in advanced.

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  • Domain from A and hosting from B

    - by Zero
    I have buyed domain from one company and hosting from another. On hosting company website finded DNS addresses and applied them to domain hosting website(changed DNS) I done it yesterday, so today it should work, but: Unable to resolve the server's DNS address appears. In direct admin control panel (DNS control) i have (it's my hosting company settings): http://pastebin.com/MGbQ02hr Note: IP and domain hidden! Any ideas whats wrong ?

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  • Is my dns server being attacked? And what should I do about it?

    - by Mnebuerquo
    I've been having some intermittent dns problems with a web server, where certain isp's dns servers don't have my hostnames in cache and fail to look them up. At the same time, queries to opendns for those hostnames resolve correctly. It's intermittent, and it always works fine for me, so it's hard to identify the problem when someone reports connectivity problems to my site. In trying to figure this out, I've been looking at my logs to see if there are any errors I should know about. I found thousands of the following messages in my logs, from different ip's, but all requesting similar dns records: May 12 11:42:13 localhost named[26399]: client 94.76.107.2#36141: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:42:13 localhost named[26399]: client 94.76.107.2#29075: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:42:13 localhost named[26399]: client 94.76.107.2#47924: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:42:13 localhost named[26399]: client 94.76.107.2#4727: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:42:14 localhost named[26399]: client 94.76.107.2#16153: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:42:14 localhost named[26399]: client 94.76.107.2#40267: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:43:35 localhost named[26399]: client 82.209.240.241#63507: query (cache) 'burningpianos.com/MX/IN' denied May 12 11:43:35 localhost named[26399]: client 82.209.240.241#63721: query (cache) 'burningpianos.org/MX/IN' denied May 12 11:43:36 localhost named[26399]: client 82.209.240.241#3537: query (cache) 'burningpianos.com/MX/IN' denied I've read of Dan Kaminski's dns cache poisoning vulnerability, and I'm wondering if these log records are an attempt by some evildoer to attack my dns server. There are thousands of records in my logs, all requesting "burningpianos", some for com and some for org, most looking for an mx record. There are requests from multiple ip's, but each ip will request hundreds of times per day. So this smells to me like an attack. What is the defense against this?

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  • windows 2003 server : can't join domain

    - by phill
    I originally tried to rejoin a computer to a network which led to a "cannot find domain" error. The username/password box don't even come up. some tests i ran: I can ping the server, however I can't ping the domain name domain1.local. nslookup can't find the domain either. It looks to the isp's dns instead of my own to resolve the local machines. So i go to the dns and run netdiag.exe and gives me this error. DNS test . . . . . . . . . . . . . : Failed [WARNING] Cannot find a primary authoritative DNS server for the name 'stmartinsrv.stmartin.local.'. [RCODE_SERVER_FAILURE] The name 'srv.domain1.local.' may not be registered in DNS. [WARNING] The DNS entries for this DC are not registered correctly on DNS se rver '68.94.156.1'. Please wait for 30 minutes for DNS server replication. [WARNING] The DNS entries for this DC are not registered correctly on DNS se rver '68.94.157.1'. Please wait for 30 minutes for DNS server replication. [FATAL] No DNS servers have the DNS records for this DC registered. Redir and Browser test . . . . . . : Passed List of NetBt transports currently bound to the Redir NetBT_Tcpip_{04BB0F6B-06AE-4D60-80C8-2A7A24C1D87B} The redir is bound to 1 NetBt transport. List of NetBt transports currently bound to the browser NetBT_Tcpip_{04BB0F6B-06AE-4D60-80C8-2A7A24C1D87B} The browser is bound to 1 NetBt transport. then running dcdiag C:\Program Files\Support Toolsdcdiag Domain Controller Diagnosis Performing initial setup: Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\SRV Starting test: Connectivity The host 1c99f63c-49ec-40db-b3d3-6265c00fbd3e._msdcs.domain1.local cou ld not be resolved to an IP address. Check the DNS server, DHCP, server name, etc Although the Guid DNS name (1c99f63c-49ec-40db-b3d3-6265c00fbd3e._msdcs.domain1.local) couldn't be resolved, the server name (srv.domain1.local) resolved to the IP address (192.168.1.21) and was pingable. Check that the IP address is registered correctly with the DNS server. ......................... SRV failed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\SRV Skipping all tests, because server SRV is not responding to directory service requests Running partition tests on : ForestDnsZones Starting test: CrossRefValidation ......................... ForestDnsZones passed test CrossRefValidation Starting test: CheckSDRefDom ......................... ForestDnsZones passed test CheckSDRefDom Running partition tests on : DomainDnsZones Starting test: CrossRefValidation ......................... DomainDnsZones passed test CrossRefValidation Starting test: CheckSDRefDom ......................... DomainDnsZones passed test CheckSDRefDom Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Schema passed test CheckSDRefDom Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Configuration passed test CheckSDRefDom Running partition tests on : domain1 Starting test: CrossRefValidation ......................... domain1 passed test CrossRefValidation Starting test: CheckSDRefDom ......................... domain1 passed test CheckSDRefDom Running enterprise tests on : domain1.local Starting test: Intersite ......................... domain1.local passed test Intersite Starting test: FsmoCheck ......................... domain1.local passed test FsmoCheck from previous postings, I've tried adding the domain suffix to the nic ip properties to both the client machine and the dc server which didn't help. note: there is only one nic on the server any ideas? thanks in advance

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  • Why should I use Amazon Route 53 over my registrar's DNS servers?

    - by Abtin Forouzandeh
    I am building a site that I anticipate will have high usage. Currently, my registrar (GoDaddy) is handling DNS. However, Amazon's Route 53 looks interesting. They promise high speed and offer globally distributed DNS servers and a programmable interface. While GoDaddy doesn't offer a programmable interface, I assume their servers are geographically distributed as well. What are the main reasons I should opt to use Amazon Route 53 over free registrar-based DNS?

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  • MacBook Pro 10.6 losing dns service, network connection still functional if you know the ip address.

    - by Vincent
    MacBook pro connected to a wireless network (not sure about wired) I lose DNS. I still have a functioning connection and as long as I know the ip address of the website, server... for example skype works, ssh name@ipaddress, .... Things can be working properly and then just quit, Once I was im via skype and lost dns skype continued to work. This has happened in multiple locations on private and public networks. What does not work/fix it: Resetting router changing dns server on computer or router connecting to another network removing the airport interface and adding it back flushing dns The only solution seems to be a restart. A solution to this would be great, but any ideas of this to try would be great. Even a sure way to reproduce this would be useful. Maybe related question: But this is most definitely not true for me. "if I refresh enough -- 3 to 4 times --, it will usually pull up the site. " Here are some tests from terminal. Basically this confirms dns in not functioning vmd17:~ vmd$ ping google.com ping: cannot resolve google.com: Unknown host Trace route to google dns, This works vmd17:~ vmd$ /usr/sbin/traceroute -n -w 2 -q 2 -m 30 8.8.8.8 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 52 byte packets 1 192.168.1.1 5.195 ms 2.519 ms 2 67.172.136.1 31.881 ms 9.177 ms 3 68.85.107.121 12.168 ms 10.003 ms 4 68.86.103.41 12.021 ms 9.594 ms 5 68.86.91.1 16.712 ms 12.837 ms 6 68.86.86.210 29.951 ms 25.826 ms 7 68.86.87.218 29.554 ms 42.894 ms 8 75.149.231.70 68.271 ms 68.362 ms 9 72.14.233.77 141.178 ms 72.14.233.85 82.553 ms 10 72.14.238.243 83.381 ms 82.811 ms 11 72.14.232.213 194.387 ms 72.14.232.215 84.837 ms 12 209.85.253.145 100.294 ms * 13 8.8.8.8 101.689 ms 89.694 ms 208.67.222.22 is the ip address of opendns dns server vmd17:~ vmd$ dig @208.67.222.222 8.8.8.8 ; <<>> DiG 9.6.0-APPLE-P2 <<>> @208.67.222.222 8.8.8.8 ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached vmd17:~ vmd$ dig @208.67.222.222 gogle.com vmd17:~ vmd$ dig @208.67.222.222 google.com ; <<>> DiG 9.6.0-APPLE-P2 <<>> @208.67.222.222 google.com ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached vmd17:~ vmd$ dig @8.8.8.8 google.com ; <<>> DiG 9.6.0-APPLE-P2 <<>> @8.8.8.8 google.com ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached

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  • Why use FQDN as DNS-server option in DHCP?

    - by Filip Haglund
    I've seen multiple default configurations of DHCP-servers with a FQDN set as the DNS-server option. Doesn't this imply a catch-22, or the need for that DNS-server to be in the hosts file of every single client? example from dhcp3-server in debian 6: option domain-name-servers ns1.internal.example.org; I can see how using a dns name is convenient because it's only an A-record to change, and they can be load balanced if wanted, but I don't see how the client is going to resolve the name. Why are people using FQDN's as DNS-server addresses in DHCP?

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  • Can a BIND server be a slave to a non-BIND master DNS server?

    - by Michael Neale
    If I have a master DNS that is not bind - can bind still slave to it? (ie does it use the DNS protocol or something else?). Kind of related - but do people still do this or do they use some other form of data replication to keep DNS records in sync to the slaves (ie file/database copying)? I would like to have the slaves refreshed as fast as possible so I am thinking normal slaving with is expiry/poll based might not be optimal?

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  • How to statically configure DNS servers on a Cisco router when the WAN interface uses DHCP?

    - by Massimo
    I have a Cisco router (model 887VA, IOS 15.4) used to connect a LAN to the Internet via ADSL. The WAN interface uses DHCP: interface ATM0.1 point-to-point ip address dhcp I need the router to use a statically-defined DNS server for name resolution: ip name-server A.B.C.D However, the router insists on using the DNS servers supplied by the ISP via DHCP: Router#ping www.google.com Translating "www.google.com"...domain server (<ISP DNS>) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 173.194.116.208, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 44/45/48 ms How can I tell the router to ignore the ISP-supplied DNS servers and only use the statically-configured one?

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  • What is the proper position for the loopback address in a DNS server selection list?

    - by Bigbio2002
    Best practices indicate that one should list 127.0.0.1 in the DNS list for the network adapter configuration for a Domain Controller, but not as the first one. With that said, what is the best place to put it in a list with more than two DNS servers listed? Second, last, or it doesn't matter? Also helpful would be an explanation as to why. Related question: What should the order of DNS servers be for the network adapter of a domain controller?

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  • Can I use TCP as DNS query protocol on Mac OS?

    - by Brian
    Hi, I'm using Mac OS, Snow Leopard 10.6.2, and I'm suffering from UDP packet loss during DNS query. So I tried DNS query as TCP using dig command, it worked very well. However, I can't find some control switch to change to use TCP during DNS query. Is there a way to change it in Mac OS? Thank you.

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  • Can I use TCP as DNS query protocol on Mac OS?

    - by Brian
    Hi, I'm using Mac OS, Snow Leopard 10.6.2, and I'm suffering from UDP packet loss during DNS query. So my web browser is too slow to surf internet nicely. But it worked very well when I tried a DNS query on TCP using dig command. However, I can't find some control switch to change to use TCP during DNS query. Is there a way to change it in Mac OS? Thank you.

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  • Why do I have two different DNS suffix lists?

    - by Rob Kennedy
    My Windows XP laptop has two different DNS suffix lists. The first is the one I see by selecting the Properties dialog of any of my network connections, selecting Internet Protocol Properties Advanced DNS tab, and looking at the list under the "Append these DNS suffixes (in order)" option. The second list is the one shown under "DNS Suffix Search List" when I run ipconfig /all. As far as I can tell, only the second list ever gets used to resolve unqualified host names. Why are there two different lists? How do I configure the second list? Or how can I make my computer use the first list?

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  • Is the hosts file ignored in windows if DNS Client service is running?

    - by Mnebuerquo
    I've seen a number of articles about how to edit the hosts file in Windows 7, but it's all about how to open notepad as administrator, not the actual behavior of the dns lookups afterward. I've read that the hosts file is ignored in XP SP2 if DNS Client service is running. I have tried this on my XP machine and it seems to be true. I can see how it is a security danger to have a hosts file that user programs could modify. If it could write to hosts, then any malware could spoof dns locally with minimal difficulty. I'm trying to use the hosts file for testing stuff on my local network without it going to the live site on the internet. At the same time I want to be able to use dns on the normal internet. Mostly though I just want to understand the rules on the newer windows systems. Thanks!

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  • Setting up a externally facing server on Windows. How do i setup DNS/Nameservers?

    - by Jason Miesionczek
    So i have a domain name that i would like to host from my static ip internet connection. I have windows server 2008 r2 installed, and dns setup. The dns server is currently behind a firewall, and i have the appropriate rules to allow traffic to reach it. My question is, what entries do i need to create in the DNS so that i can have some nameservers to use at my domain registrar, so that the domain correctly points to the server? I know that most domains have nameservers like ns1.domain.com, ns2.domain.com, etc. What would i point those to in my DNS?

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