DNS Server binding wrong ip address

The DFS Replication service failed to contact domain controller to access configuration information

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Need a suggestion for a DNS server (BIND etc...)

I am a student in college. I got a little job to help improve the internal DNS management in the college.
Right now they use BIND with nothing else. They edit the zone files by hand. Since the network is quite large, it's sometimes hard to maintain these files.
There are three possibilities:
1) use webmin.
2) use DLZ (still BIND, but uses a database backend)
3) use another DNS server software.
I would really appreciate your advice about:
1) lets assume webmin doesn't support a particular record of the DNS, and I update it manually via directly editing the files, will it interfere with webmin?
2) did you try DLZ? I don't know if it worth the work. Does it noticeably change the performance? Is there a decent GUI for editing the records when using a database?
3) I've heard many good things about PowerDNS. Is it really the best DNS server around? What GUI options does it have? Do you want to recommend another solution?
Thank you!

dnsmasq is hands down the easiest DNS (and DHCP!) solution if it works for your network setup. If you let it handle both DHCP and DNS it will dynamically add DHCP client host names to the DNS so you can look up local DHCP clients by DNS.
I am by no means a DNS expert, but dnsmasq just makes it all so easy.

DNS server (BIND) VPS requirements.

I am looking into renting a VPS (or 2) and I have actually found some pretty good deals.
I can save a good bit of money per yer if I sacrifice storage space.
My question is, does anyone have a DNS server that they can check out or possibly know off hand about how much disk space it is actually using?
I know that a DNS server doesn't use a ton of resources, but I am just trying to get a general idea.
Thanks in advance,
Daniel

I did end up getting a vps for this, with 1gb of disk space. Using for just a resolving dns it is plenty.
I am just concerned if i wanted to do a caching dns server, that the space might add up quickly.

Server 4: open directory entry for server reports wrong IP address

I'm running Server 4 on a Mac Mini (late 2012) running OS X 10.10.
The server is configured as a stand-alone machine providing services to users connecting over its fixed IP public address. The server uses Open Directory to keep record of authorised users of the services provided (mail, calendar, wiki, contacts, some file sharing), and the machine is configured as an OD master.
I've noticed that the entry relating to the server on the Server 4 panel for Open Directory (the only entry showing by the way) lists three IP addresses below the name of the machine. My concern is that these IP addresses are not related to the IP address being used by the machine, and there does not appear to be any simple way to change them. The IPs reported are 10.37.129.2, 10.0.1.2, 10.211.55.2. The server's fixed IP is in the range 45.146.x.x and the local network running below our router that the server connects to has IPs in the range 192.168.1.x. So It is not clear where these IPs might be coming from.
What do these numbers relate to? If they are important, should they point to the IP address occupied by the server? If so, how do I make this change in settings?
Thanks a lot in advance for any help that you can provide.

<bump>

DNS requests from Solaris 10 box to Bind/MySQL DNS server fail

We have some servers running solaris 9 and some running solaris 10. We also have a DNS server setup running BIND with the MySQL backend. When I query the DNS server from our solaris 9 boxes, they always work just fine. However, when I query the DNS server from our solaris 10 boxes, they always fail. Queries to other DNS servers from the Solaris 10 boxes work just fine - they only fail when being sent to this particular DNS server. Here's exactly what I'm doing:
ON SOLARIS 9 BOX:
bash-3.00$ nslookup google.com calo-sunset
Server: calo-sunset
Address: <IP_OF_DNS_SERVER>#53
Non-authoritative answer:
Name: google.com
Address: 64.233.187.99
Name: google.com
Address: 72.14.207.99
Name: google.com
Address: 209.85.171.99
ON SOLARIS 10 BOX:
bash-2.05$ nslookup google.com calo-sunset
*** Can't find server name for address <IP_OF_DNS_SERVER>: Non-existent host/domain
*** Default servers are not available
In the case of the SOLARIS 10 box, <IP_OF_DNS_SERVER> is correct - it knows the IP address of the DNS server, but apparently it doesn't recognize that it's actually a DNS server.
I am utterly perplexed by this. It seems to me that a DNS request is a DNS request, regardless of your OS. Clearly something is different from Solaris 9 to Solaris 10 though because the requests fail on all of our solaris 10 boxes, and they succeed on all of our Solaris 9 boxes. Incidentally, dig requests from the Solaris 10 box also fail, where they succeed on the Solaris 9 boxes.
I don't really know what other information I could offer that might be useful. If you have any information at all about this or ideas on what I might try to troubleshoot/fix it, I'd love to hear it. Thanks in advance.

First off, I am an idiot. I got this entire post backwards. The fact is that the DNS requests work swimmingly well on our Solaris 10 boxes. They fail on our Solaris 9 boxes. I don't know how I managed to read this post all of these times and not notice that I got that backwards. Nice.
In any case, I've found the problem. It was non-trivial to me because I am not terribly familiar with the inner-workings of DNS. To those who are, it may seem painfully obvious. To me it certainly was not.
The problem was that the DNS server (BIND 9 with MySQL backend) did not contain a reverse DNS entry for itself. Apparently this is a big problem for Solaris 9. I got a hint that this might be the cause when I turned on verbose debugging info when I ran nslookup (nslookup -d2). I had to add the PTR record for the DNS server itself. I don't know why Solaris 9 would require that a DNS server contain reverse DNS information about itself, but sure enough it does. As soon as I added that info, the Solaris 9 boxes were able to successfully query the DNS server. Very odd.
Anyway, I doubt anyone else will come across this problem, but if you do, now you know something that might fix it.
Edited by: dprater on Oct 7, 2008 8:09 PM

Split-horizon DNS server

Hi,
is it possible to use novell-named on OES 2 Linux to create split-horizon DNS server? Something like this: Two-in-one DNS server with BIND9 | HowtoForge - Linux Howtos and Tutorials. What I want to achieve is "to resolve to internal IPs when you are inside and external IPs when you are outside".
We have some services (web applications, Groupwise messenger etc.) which can be accessed from the LAN using private addresses and which are also visible from the public network (Internet).
Currently we have Netware 6.5 with DNS Proxy binded to internal address and some hostnames bound to internal IP addresses inside hosts file (and therefore resolved by DNS Proxy with private addresses for LAN clients) and named bound to public IP and serving DNS requests from public network. But we'd like to migrate everything from Netware to OES 2 Linux.
Any help is much appreciated!
Bruno

Originally Posted by joharmon
Just found this:
Is Views for DNS Supported or Possible on NetWare or OES?
Bad news but thanks for your answer!
Bruno

XP Machine gets bad DNS Server address

I was having issues with my Mini MAC dropping the wireless connection with my old Linksys Wireless G router so I went out and bought a new Airport Extreme, it was time for an upgrade to N and GigE anyway. Now I can't get my old Dell Box running WinXP to access the internet. I can surf my own network just fine. Below is a similar set of data when running ipconfig /all. Note this is not my box but it has the same DNS and DHCP server settings. I compared mine value for all fields when connected to my Linksys and AE. The only difference was the DHCP and DNS server settings. I haven't tried another Wired computer yet but every Wireless device connects to the internet just fine (Mini MAC, Wii). I've done all the power cycling suggestions but to no avail. Any Ideas? I am hoping to test another wired device to see to hopefully isolate it to WinXP/My NIC and not a wireless vs wired thing. The WinXP box uses a 100Mb speed. I do have a NAS (ReadyNAS NV+) running on the network but it doesn't/isn't connect to the internet and it is running just fine. Same is true for my network attached printer (Brother). Again any ideas/suggestions are appreciated.
C:\Documents and Settings\Owner>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : your-w04gtxld67
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet NIC
Physical Address. . : 00-0C-76-87-6A-A0
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . : 10.0.1.2
Subnet Mask . . . . . . . . . :255.255.255.0
Default Gateway . . . . . : 10.0.1.1
DHCP Server . . . . . . . . : 10.0.1.1
DNS Servers . . . . . . . . . . . : 10.0.1.1
Lease Obtained. . . . . : Tuesday, May 23, 2006 3:16:46 PM
Lease Expires . . . . . . . . . . : Tuesday, May 23, 2006 7:16:46 PM

IP Address. . . . . . . . . . . . : 10.0.1.70
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Ok, these seem appropriate for what I would expect coming from the AirPort's DHCP server, although x.x.1.70 seems a bit odd but within the default range.
Default Gateway . . . . . . . . . : 192.168.1.2
This may be the problem. With the IP address assigned to your computer of 10.0.1.70, I would expect that you would get a Default Gateway address of 10.0.1.1. The one you got here is on a totally different private IP range. That would mean your computer will not be able to access the AirPort.
DHCP Server . . . . . . . . . . . : 10.0.1.1
This is correct and what I would expect.
DNS Servers . . . . . . . . . . . : 208.67.222.222 208.67.220.220
These are also correct since you are substituting the OpenDNS servers for your ISP's.
We would need to figure out why your PC is getting assigned a Default Gateway address from the wrong subnet.

DNS fails using router IP address as DNS server address with static IP

This is my first experience with a Linksys router so it might be normal behaviour but just wanted to check. With a WRT54G2 router I have a few PC's I want to use static IP. Up till now with other brand routers including Belkin and Dlink, I have been able to just put the router IP address in as the address of the DNS server when I use static IP. This seemed to work initially with the Linksys but now for some reason, if I don't code the IP addresses of the DNS server provided by my ISP, DNS lookup fails. If I use DHCP for the PC's there is no problem.
Is that normal behaviour or is there something wrong I am doing?
Thanks
Larry

I decided to upgrade my Linksys 54G router to a "Ultra RangePlus Wireless-N Broadband Router (WRT160N)Version 1" . I have had problems with the wireless (as far as I know just wireless portion) connection dropping. I have done some searching I was able to find some settings to try, and it did work better, but not for too long. I have this router within arm reach away, so it's not a distance issue. I have tried many things for about the last 6months or so.
As a last resort, and I do mean last resort and against my better judgement I purchased " Dual-Band Wireless-N Notebook Adapter (WPC600N) Version 1". I was hoping it was a compatibility issue, but there was no difference.
I have heard of trying older firmware, but I can't find any.
I have been a Linksys fan for quite sometime, but as of recently I am thinking of reconsidering if I can't get this resolved with out spending any more money.

Server 2008 DHCP is handing out the wrong DNS server.

We have two new 2008 DC that handles, DNS, DHCP and WINS. Our DHCP scopes have been migrated to these servers. We are seeing some random issues where clients are using the new dhcp server but the old dns server information is listed for the some systems. We discover this by using network monitor on the old DC, DNS, DHCP server. Once the client performs a ipconfig /renew, the problem is corrected. Any ideas?

Hi BrianAuH20,
Thank you for posting here.
Based on your description, I understand that your Windows 2008 DHCP server hands out the wrong DNS server address.
To troubleshoot this issue, please perform the follow steps to see whether the clients retrieve the right DNS server address.
1.     Temporarily make the old DC, DNS, DHCP server offline.
2.     Check the new 2008 DHCP server setting.
                      i.        In the DHCP console tree, under Scope [172.16.0.0] SS Scope, right-click Scope Options, and then click Configure Options.
                     ii.        On the Advanced tab, verify that Default User Class is selected next to User class.
                    iii.        Select the 006 DNS Servers check box, in IP Address, under Data entry, type DNS Server IP address, and then click Add.
                    iv.        Select the 015 DNS Domain Name check box, in String value, under Data entry, type your domain's FQDN name, and then click OK.
3.     Restart the DHCP service.
For more information, you may refer to:
http://technet.microsoft.com/en-us/library/ee404786(WS.10).aspx
Hope this helps.
Sincerely,
Wilson Jia
This posting is provided "AS IS" with no warranties, and confers no rights.

Externally Hosted DNS - How do I set up my 2003 DNS server for sub domain to point to internal IP address??

I have a domain name(domain.com) DNS hosted at my ISP. I also have 3 sub domains DNS hosted at the same ISP pointing to various external ip addresses (mail.domain.com, vpn.domain.com and ts.domain.com). We want to set up sales.domain.com to point to an
internal 10. IP address. We have AD integrated DNS servers for our 2003 AD domain. The AD domain name is totally different than the hosted domain name in question. I currently edit the host file for a couple of PC's but this isnt practical company wide so
I want to add entries on our internal AD DNS servers to resolve the locally hosted site. If i recall, someone once told me that you cannot just put an A record for one sub domain, I would have to have entries on my 2003 DNS server to resolve anything related
to the domain.com name. Is this accurate? If so, what is the proper way to configure my 2003 AD DNS server to resolve anything domain.com related for my internal users while still allowing my ISP to do the DNS lookup for the internet.

On my 2003 AD integrated DNS server...i rightclick forward lookup zone and choose...new zone..primary zone (store zone in AD checkbox checked)..i chose to all DNS servers in the AD domain for replication...zone name sales.domain.com....allow secure updates
option....then i added an A record in that zone...sales.domain.com..pointed that towards my internal 10. IP address...is this correct? It seems to be working correctly for the sales.domain.com DNS record...and i tested the other sub domains...and those look
like they are going to my ISP for DNS resolution...
Is this the correct procedure? I did this on a test AD domain and not my production...i want to make sure i dont break everything under the domain.com by incorrectly adding 1 sub domain..

How do I have a cRIO register its IP address with the DNS server, clearing any previous entries?

I've run into a problem when I try to move a cRIO-9073 from one network segment to another (say 10.1.33.x to 10.1.36.x): The old IP address remains registered on our DNS server, so trying to access the cRIO by its DNS name fails as the DNS server tells my PC to look for the old IP address.
When I search the DNS server from my PC using "NSLOOKUP" with the old IP address, it finds the DNS name of the device. If I repeat the search with the new IP address (MAX finds the device with its new address, but I hate to have users use MAX to find it), it again returns the DNS name, so it appears the DNS name is registered under two IP addresses on our DNS server. I've also repeatedly tried to flush my PC's DNS cache using command "IPCONFIG /FLUSHDNS", but it still tries the old IP address. I also see in MAX that the cRIO is using the same DNS server my PC uses.
Our IT people say that I have to tell the device to re-register its DNS name. They told me a command to do it from Windows (command "ipconfig /registerdns"), but obviously this is VxWorks on the cRIO. Is there a command to do this on the cRIO or a setting in the "NI-RT.INI" file I can change? I honestly don't think this is the issue (as it successfully registered the new IP address under its name), but I want to try it if it's possible.
Thanks!
Erik
ps - Our IT dept. won't let me use static IPs unless I get them assigned by both their MAC address AND the network jack they're connected to, so that's out.

Normally this is actually a function of your DNS server. It needs to perform a periodic flush of stale records. You can check the RFC for the DNS protocol and build the necessary packet yourself.
Mark Yedinak
"Does anyone know where the love of God goes when the waves turn the minutes to hours?"
Wreck of the Edmund Fitzgerald - Gordon Lightfoot

Airport Extreme invalid IP address, no DNS server

Hardware: Motorola SURFboard SB6141, Airport Extreme A1408
I recently set up a new internet service with Cox, plugged in the SB6141 and A1408 and everything set up perfectly, solid green light and wireless was flawless. However, electricity to my house had to be reset, and when the power came back on the green light on the Airport Extreme started to flashing amber. I did several hard/factory resets of the Airport Extreme as well as unplugging the modem and leaving everything unplugged for several minutes and then plugging everything back in. No matter what combination of things I try to do, the Airport Utility always tells me the same 2 errors: invalid IP address and no DNS server. Why was the Airport Extreme able to automatically set up the first time, but not now? Any ideas of what I can do? Thanks!

I have also looked through other threads about this same problem, but none of the solutions (e.g. posts by Tesserax, followed to the letter) so far have worked.
Here are other things I have tried:
1. Called Cox to have them reset my modem, internet works through Ethernet directly from the modem
2. Downgraded AEBS firmware to 7.6.1 (oddly enough, now I cannot for the life of me update the firmware back to 7.6.4, always says cannot connect to update server)
I ran through the various solutions from this thread: "No DNS servers" and "Internet connection" problems with Comcast?
Still getting that pesky blinking amber light.

"Back to my Mac isn't working properly because your DNS server isn't responding. Contact your ISP for an alternate DNS server address, and enter it in Network Preferences".

Hi, i am trying to setup back to my mac at home but I get the error "Back to my Mac isn't working properly because your DNS server isn't responding. Contact your ISP for an alternate DNS server address, and enter it in Network Preferences".
There is no documentation on how to solve this anywhere.
I have an Arris router set to bridged mode which is connected to a 5th generation airport extreme. I have tried using the google dns servers instead of the one assigned by the cable company in the AE but I still get the same error.
Any help would be much appreciated
Kenneth

New to BTMM, I got stung today with the silly DNS problem message. Solution:
1) Flush DNS cache with:
dscacheutil -flushcache;sudo killall -HUP mDNSResponder
2)System preferences > iCloud > untick BTMM then tick it again. The warning should have disappeared.
Edit #1
Apologies for the noise. The warning has come back
Edit #2
Just found out that BTMM is not compatible with double NAT. That's not helpful.
http://support.apple.com/kb/TS1208

Can't delete grayed-out DNS server addresses

I want to replace two grayed-out DNS server addresses from the Network panel (under the DNS tab in "Advanced…"), to replace them with OpenDNS settings. But they can't be selected/deleted. How do I get around this problem?

That is correct - those are provided by your router and can not be deleted - you can add Open DNS servers (click the + sign) or log into the router admin page (I recommend this way) and have your router use the Open DNS servers fro everything on your network (this will change the grayed out ones)
LN

How to prevent changing DNS server address

I work for a public school district. We just purchased our first batch of Win 8.1 PCs, but they are not the Pro version, so there is no gpedit. I want to prevent students from accessing the TCP/IPv4 Properties dialog box in order to ensure that the
DNS server address is always obtained automatically. Can anyone tell me how to do this using regedit, or any other way? Thanks!

Easiest way is to assign these students a standard user account (without admin rights).. They cant change any system setting then.. Other than restricting privileges I don't think you have option here since you don't have group policy editor ..
There could be a possibility to do this using regedit But it is not recommended since there are no any official article for this other than below untested third party article form ehow
http://www.ehow.com/how_8110801_disable-tcpip-properties-regedit.html
Besides it could be tedious.. enabling and disabling it..

DNS Server binding wrong ip address

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