Unable to resolve server's DNS address.

Been sharing my internet (ethnernet) with another Mac OS X 10.6 via airport, but the other mac is unable to resolve server's DNS address. Help?

Hi,
Have you contacted your internet service provider (ISP) as DNS usually are ISP related. Have they reset their modem or router, not just power cycle?
I suggest you change the Preferred DNS server, try the following steps:
1. Click "Start", input "NCPA.CPL" (without quotation marks) and press Enter.
2. Right click on the connection that you use for the local connection, and then click "Properties".
3. Click to select "Internet Protocol Version 4 (TCP/IPv4)", and then click "Properties".
4. In the Internet Protocol window, let's change the "Preferred DNS server" to 208.67.222.222
5. Click 'OK' twice to complete the modification.
If the issue persists, please repeat the steps and change the "Preferred DNS server" to 208.67.220.220.
Also, if the issue persists, I suggest you run the following command:
ipconfig /release
ipconfig /renew
To get IP address & DNS from DHCP, the DNS server should be internal DNS server IP.
Hope this helps,
Ada Liu

Similar Messages

I am trying to setup Microsoft office mail and need assistance - I am receiving the error, unable to find server and DNS setting in the Network

I am trying to setup Microsoft office mail and need assistance - I am receiving the error, unable to find server and DNS setting in the Network

Which version of OSX and what email provider are you using.

Unable to Resolve SERVER NAME

I can ping the Server's IP Address from any workstation on the network,
but when it comes to trying to ping by Server Name, I get the following
error message "Ping Request could not find host X. Please check the name
and try again."
The server is inside a private network and the Firewall Router takes care
of the actual IP addresses to the workstation.
I would appreciate any positive feedback to this question.
Thank-you

Rod,
> I can ping the Server's IP Address from any workstation on the network,
> but when it comes to trying to ping by Server Name, I get the following
> error message "Ping Request could not find host X. Please check the name
> and try again."
Do you have a DNS server on your network? If so, you need to add an A
record for the server to it.
Hamish Speirs
Novell Support Forums Volunteer Sysop.
http://haitch.net
(Please, no email unless requested. Unsolicited support emails will
probably be ignored)

When I try to connect to wireless internet, I get Error-105, "Unable to resolve the server's DNS address". I've tried everything from resetting including a full software update and nothing has fixed it. What should I do?

I've tried resetting the router, resetting my airport on my laptop, unplugging the router, restarting my computer, updating all my software (including from snow leopard to mountain lion) replacing the dns ip address, and restarting the browsers. It won't let me use wi-fi on any of the browsers (chrome, firefox, safari), but will allow me to use internet through the ethernet cable.
This happened earlier today when for my job I tried to clear some expired certificates and I removed the expired ones that were on my firefox (I now use chrome) and the internet crashed soon afterwards. While I was deleting the certificates, I also got the "blue screen of death" sort of thing that popped up and shut my computer down.
I have no idea what to do and my laptop is no longer under warranty. Can anybody help me?

Please read this whole message and be sure you understand all of it before doing anything. Back up all data before making changes to your settings.
Write down the server addresses.
Click Cancel to close the Advanced sheet. Unlock the preference pane, if necessary, by clicking the lock icon in the lower left corner and entering your password. Open the DNS tab again and change the server addresses to the following:
8.8.8.8
8.8.4.4
That's Google DNS. Click OK, then Apply.
In Safari, select
Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data
and confirm. If you’re using another browser, empty the cache. Test. Any difference?
Notes:
1. If you lose Internet access after making the above change to your network settings, delete the Google servers in the Network preference pane, then select the TCP/IP tab and click Renew DHCP Lease. That should restore the original DNS settings; otherwise restore them yourself.
2. I’m not advocating Google or anything else as a DNS provider; the server addresses are offerred merely for testing purposes. There may be privacy and technical issues involved in using that service, which you should investigate personally before you decide whether to keep the settings. Other public DNS services exist.

Unable to resolver server name

when I open a terminal window and type ping followed by existing server name it says "cannot resolve reference: unknown host"
if I do the same thing on a PC it all works!
Why can't a MAC find other computers connected on the same network
It such a basic thing, It almost make the imposable to us a mac. One way other people use to get around this problem is to run windows on a mac instead, But I don't understand why.

Check out this link - http://discussions.apple.com/thread.jspa?threadID=2496619&tstart=15
It might assist in isolating/troubleshooting the issue. Can you ping via Network Utility? Did you try and DNS cache flush?

[nQSError: 77030] Oracle BI Presentation Server Connection Error: Unable to resolve the address for cn.

Hi Experts,
When I use Agent functionality to send email in BIEE 11.1.1.7.0, it will generate the following error message as below: Are you facing the same problem ? Please help me,Thanks very much.
Global Error: [nQSError: 77030] Oracle BI Presentation Server Connection Error: Unable to resolve the address for cn.
Error Codes: AXSBMN8D:
The operation completed successfully.

Can you try doing telnet to SMTP server from where BI server is installed and let us know the outcome.Just want to check if any firewall is blocking
telnet hostname portnumber
Thanks,

VersaMail - "Unable to resolve name" error for mail server

I've had an intermittent but frequent problem with VersaMail when I try to connect to get my email. I frequently get the following message:
"Unable to resolve name pop.mindspring.com. Check your DNS settings or enter the IP address for your mail server."
I also get it occasionally for my Yahoo.com mail addresses as well, so it's not unique to Mindspring.com. Sometimes it happens a lot, but sometimes I get right in with no problems, so the settings I have appear to work - when they want to. Needless to say, it's frustrating and annoying, so if anyone has a way to resolve this, I'd appreciate knowing it.
Thanks.
Post relates to: Palm TX
This question was solved.
View Solution.

Problem solved! I had Googled for answers and had found an explanation of DNS servers on another forum where someone was having a similar problem. It seems that DNS servers simply take the domain name we use and search for the IP address for that domain name, then hook us up to that IP address. The error message I was getting was that I needed to check my DNS settings or enter the IP address, so it seemed only logical to me that if I could bypass those goofy DNS servers with their "now I'll do it, now I won't" bad attitude, perhaps I could connect directly with the mail servers. Your tip on how to find the IP address of the mail servers by pinging them was the missing piece I needed. I deleted the POP and SMTP server names for each account I'd set up in VersaMail, replacing them with the appropriate IP addresses, and I can now connect reliably with any of the servers, first time, every time - and lightning fast.
Thanks for your help!
Post relates to: Palm TX

HomeHub is unable to resolve a DNS CNAME pointing ...

Just sent a technical compaint email off to BT to get an answer to this, but thought I would share here in case it helps anyone else.
Problem:
My HomeHub 3 is unable to resolve DNS queries where the DNS has a CNAME pointing to my WAN address. BT's and other public DNS servers resolve correctly - so the problem is not with the DNS record.
Background:
I have some devices at home which use DNS for name resolution. As a web developer, it is anoying that I have to use a different DNS name from inside my house to outside because of the above problem. It is also annoying that the only two workarounds I can think of are to a) buy a new (non-BT) router, or b) manually configure each device to not use the HomeHub for name resolution because BT have locked down the hub so I can't do it automatically.
Reproduce steps:
1) Set up a DNS record to point to your HH WAN address.
2) Set up a second DNS record that ponts to the first with a CNAME.
3) DNS queries to the first record succeed, queries to the second fail.
4) Set up a DNS record to a different IP address (try adding 1 to your WAN address)
5) Set up another CNAME to point to that address
6) DNS queries to both addresses succeed because the CNAME doesn't point to your WAN address
There are some other people experiencing this:
http://community.bt.com/t5/BB-Speed-Connection-Issues/DNS-problem-with-a-working-website/td-p/220965
http://community.bt.com/t5/BT-Infinity/Infinity-Homehub-DNS-Server-problems-with-CNAME-record/td-p/3...
Solved!
Go to Solution.

For completeness - the reply from customer services:
First of all, thank you for your email. I can certainly understand that a problem like this can cause frustration and inconvenience and I’m very sorry.
At the BT Broadband Technical Helpdesk we can only help with an actual broadband fault. The scope of free technical support for your broadband is limited to the supply of a broadband connection to one computer with the Homehub at it's default settings.
I understand that you have specific setup requirements. I'm sorry that I'll be unable to help configure the Homehub the way you'd like it to work.
I'd recommend that you contact our Home IT Experts Service where one of my colleagues will be able to help you.

DNS Forwarders say unable to resolve. Root Hints timeout during validation.

I have a Windows Server 2012 Essentials server that has been up and running for a year. The Server is the domain controller with the DNS server role installed. There is only one NIC card used on the network. Today, DNS stopped working. The server and the
clients can access internet websites if IP addresses are used; otherwise, accessing websites fails. Looking at the DNS properties page on the Forwarders tab, I see that each DNS server listed (which are the DNS servers given to me by my ISP
provider) says <Unable to resolve>. When I saw that those addresses were not resolving, I added Open DNS IP addresses and I added google's DNS addresses in the DNS forwarders list but they too said <Unable to resolve>.
I can ping the Open DNS IP addresses, the google DNS IP addresses and the ISP provider's DNS IP addresses. NOTES: 1) I tried unchecking IPv6 on the DNS' server's Ethernet adapter properties; 2) I have done a flushdns; 3) I have verified that
my DNS services are running; 4) the first DNS on my server's Ethernet adapter properties is the IP address of the DNS server (which is 10.0.0.51) and the second is the loopback (127.0.0.1); 5) the power management on the NIC adapter is disabled; 6) nslookup
works for 8.8.8.8 but not for www.google.com.
I removed the Forwarders and tried to use just Root Hints. That didn't make any difference. I went back into DNS Manager->[DNS server name]->right-click properties->select Root Hints tab. I clicked on a.root-servers.net to edit. Under the Validated
column it says "a timeout occurred during validation". I clicked cancel to back out of everything I was doing.
As I mentioned, this was all working fine until this morning. Can someone tell my why the Forwarders are unable to resolve? An why the Root Hints timeout during validation?

Hi,
It could be a firewall issue. Try to use public DNS server to resolve names,
nslookup
server
IP address of the public DNS server
www.microsoft.com
If timeout occurs, it means that firewall or some other similar device block the DNS traffic. Please disable the firewall and try again.
If issue persists, please try to restart the DNS service.
If it still doesn’t work after restarting the DNS services, please check if there is any warning or error in the event viewer of DNS servers.
Best regards.
Steven Lee
TechNet Community Support

DNS Issue - Unable to resolve Hostname until IPConfig /flushdns and ipconfig /registerdns is done.

We are having a random issue, that at first was limited to our Windows 7 x64 boxes, but now is appearing in our x32 bit boxes.
Network Setup -> we are running Active Directory 2008 in Native. Our DHCP scope is setup to hand out the DNS addresses to all clients, and is working.
What happens to an impacted client.
They will be working, and able to browse/connect to services with in/out our network. Then for some reason they will go to a page like -> intranet.ourcompanyname.net. IE will advise it cannot open the page.
1)If we ping either just intranet or the FQDN - it will advise host cannot be found.
2)However if we do an nslookup on the same client - nslookup will return the IP of the Corresponding FQDN.
3)We have to perform a ipconfig /flushdns and a ipconfig /registerdns on the the client.
4)Once that is done, the client machine can again connect to the FQDN
The only FQDN's that are impacted by this are ALL Internal. Example - they never lose the ability to resolve something like
www.google.ca, etc. It also usually impacts just one internal FQDN - so they may lose the ability to resolve the Intranet, but another internal website on the same server and/or another application (like email) will
continue to work fine.
I really am at a loss as to why. DNS is working properly at the Server Level.

Hi,
It may be caused by DNS cache pollution. To verify this, please run "ipconfig /displaydns > C:\dnscache.txt" command, then check if there is a wrong cache of "intranet.ourcompanyname.net" in the dnscache.txt
file.
To find out where does the wrong cache come from, please run "ipconfig /all" command, then check if there is a unexpected DNS server configured.
If the DNS configuration is correct in the client side, please try to perform a network capture on the client. It can tell us where does the wrong cache come from.
Best Regards.
Steven Lee
TechNet Community Support

Unable to resolve scan name to an ip address

Hi All,
I am installing 11gR2 on RHEL-4.
My installing is getting on scan ip part.
Its giving me an error that unable to resolve scan name to an ip address.
I have put the scan ip entry in /ect/hosts file instead configuring using DNS.
My /etc/hosts
vi /ect/hosts
127.0.0.1 localhost.localdomain localhost
#public
192.168.2.201 rac1.oracle.com rac1
192.168.2.202 rac2.oracle.com rac2
#private
10.10.1.1 rac1-priv.oracle.com rac1-priv
10.10.1.2 rac2-priv.oracle.com rac2-priv
#virtual
192.168.2.211 rac1-vip.oracle.com rac1-vip
192.168.2.212 rac2-vip.oracle.com rac2-vip
192.168.2.301 rac-scan.oracle.com rac-scan
The same entry is for second node
The installation should run anyways i am putting scan ip entry in /etc/hosts file
Could you please let me know where i am going worng?
Your assistance is much appreciated in this regards.
Thanks and Regards,

Hi
Thanks for the help.
I have installed 11gr2 on centos 4.5.
During installation i configured 3 disk and selected normal redundancy.
Please find the output of ocrcheck and asm disk.
[grid@rac1 bin]$ ./ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 2220
Available space (kbytes) : 259900
ID : 1931872859
Device/File Name : +ocr_vote
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check bypassed due to non-privileged user
[grid@rac1 bin]$ /etc/init.d/oracleasm listdisks
OCRVOTE1
OCRVOTE2
OCRVOTE3
I should able to see 3 disks for ocrcheck, While installing i selected normal redundancy and selected all the 3 disks.
Could you please explain this.
your assistance is much appreciated .
Thanks and Regards,

[SOLVED] rpc.nfsd: unable to resolve ANYADDR:nfs to inet address

rpc.nfsd: unable to resolve ANYADDR:nfs to inet address: Name or service not known
rpc.nfsd: unable to set any sockets for nfsd
my server nfs show this with nfs-utils 1.2.1-2 but it works.
But the message is still bothering me, I followed everything that's in the wiki for NFSv4 and I had to update this message...
What's wrong?
tnx
Last edited by ugaciaka (2010-01-11 13:28:34)

I have same problem and i'm using networkmanager (notebook, wifi). My DAEMONS section on rc.conf:
DAEMONS=(... networkmanager alsa kdm cups bluetooth rpcbind nfs-common nfs-server netfs autofs ...)
When i try automatically connect on boot, i have same problem (but network work now without X starts, after console login).
When i try
[stepan@stepan-nb ~]$ sudo /etc/rc.d/nfs-server restart
:: Stopping rpc.mountd daemon [FAIL]
:: Stopping rpc.nfsd daemon [DONE]
:: Unexporting all directories [DONE]
:: Mounting nfsd filesystem [DONE]
:: Exporting all directories [DONE]
:: Starting rpc.nfsd daemon [DONE]
:: Starting rpc.mountd daemon [DONE]
after boot and login, everything works, but on boot nfs-server init script fails to start.
Last edited by Tapan (2010-01-06 19:22:25)

Resolving server DNS ?

I've been running Mavericks Server for a while, and use it for File Sharing, TM serving, and Cache serving. I'm about to upgrade to Yosemite and buy the server app
I keep seeing instructions that talk about "setting your router to resolve your server's name" and about configuring DNS.
e.g.
http://www.macworld.co.uk/review/utilities/os-x-server-review-3588390/
"For a basic server setup you might need to configure your router to resolve your server’s hostname, however, or simply edit your server’s hosts file to this end. OS X Server includes a DNS server you could also use."
I haven't done this. I can't see how to do this on my router. (BT home Hub 3). What are the advantages/purpose of doing this, and how do I do it? I do have a domain name, but it's hosted somewhere else. Everything seems to work ok.
Thanks

benwiggy wrote:
Hmm.
First, I have a dynamic IP address. It changes about once a month, or when I turn the router off and on. Does that mean I'll have to change the IP address in the DNS entry every time?
I presume I just create a new record on each device's hosts file?
Dynamic addresses complicate the issue. However, you can look at Dynamic DNS services. These are services that allow you to assign host names to dynamic services. An agent will run on your LAN and update the external DNS whenever it changes. It is nearly transparent to all users. Search for Dynamic DNS for more details.
I'm afraid the rest is just confusion. I understand that the point is so you can use the same hostname inside and outside the LAN -- but if my MBP has a DNS entry pointing to my public IP, then how does it switch inside the LAN? And how does it access my own website from inside the LAN if that domain name is pointing to the local server, not the webhosting one?
This is where DHCP plays its roll. You should not be hard coding network stack values in client devices. A DHCP server will hand out to the device the relevant stack info, including DNS server addresses. When you are on a LAN, the LAN's DHCP server will give you DNS server addresses. They may be servers on the LAN. Now when you ask for something from your domain, a LAN DNS server replies and routes you as appropriate. When the device leaves and joins a new network, a new DHCP server hands it new DNS server addresses. Now you hit those DNS server to route to resources.
From inside, you point to the external address of your web and mail server. That is how devices on the inside route externally for resources.
When you say "replicate the DNS on your LAN", do you mean turn on the OS X DNS server, and add a hostname with the local IP address? Or the public IP as well? So the local DNS server "over-rides" the DNS settings in the MBP's hosts file?
Sorry. "Not Normally This Stupid". I greatly appreciate your help in this.
Yes. Simple example.
Your LAN: 10.10.10.0/24
Your public IP: 17.13.11.7 (not accounting for dynamic)
Your Yosemite Server (cal.benwiggy.com): 10.10.10.5
Your Mail Server (mail.benwiggy.com): 17.34.68.10
Your Web Server (www.benwiggy.com): 17.34.68.11
Your Internal DNS would look like this:
A record for cal.benwiggy.com = 10.10.10.5
A record for mail.benwiggy.com = 17.34.68.10
A record for www.benwiggy.com = 17.34.68.11
(Your DHCP server on the LAN would hand out the address of your server as the DNS address, allowing all requests to hit it first)
Your external DNS would look like this:
A record for cal.benwiggy.com = 17.13.11.7
A record for mail.benwiggy.com = 17.34.68.10
A record for www.benwiggy.com = 17.34.68.11
Now, regardless of where devices are, they will find a destination.

DNS server returns IP addresses even for domain na...

Like a number of other people I have been looking at the BT Broadband service and have found that there is an issue with the current DNS server. What I / we have found is that the DNS server returns IP addresses even for domain names which should not resolve. See following -
DNS results wildcarding (?): Warning
Your ISP's DNS server returns IP addresses even for domain names which should not resolve. Instead of an error, the DNS server returns an address of 92.242.132.15, which resolves to unallocated.barefruit.co.uk.
There are several possible explanations for this behavior. The most likely cause is that the ISP is attempting to profit from customer's typos by presenting advertisements in response to bad requests, but it could also be due to an error or misconfiguration in the DNS server.
The big problem with this behavior is that it can potentially break any network application which relies on DNS properly returning an error when a name does not exist.
The following lists your DNS server's behavior in more detail.
www.{random}.com is mapped to 92.242.132.15.
www.{random}.org is mapped to 92.242.132.15.
fubar.{random}.com is mapped to 92.242.132.15.
www.yahoo.cmo [sic] is mapped to 92.242.132.15.
nxdomain.{random}.netalyzr.icsi.berkeley.edu is mapped to 92.242.132.15.
Moderators could you please investigate this for us.
Infinidim
Megadodo Publications
Ursa Minor Beta
If you want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side
If the the reply answers your question then please mark as ’Mark as Accepted Solution’
Solved!
Go to Solution.

RedAmberGreen wrote:
BT use a Barefruit (which your post seems to suggest) service called 'Error Resolution'.
http://www.barefruit.com/background/error_resolution.php
Any DNS that can not get resolved goes via this service and returns a page showing paid adverts and/or links related to what they think you were looking for.
BT refer to this as 'BT Web Address Help' and can be turned off on an opt-out basis via this link: http://preferences.webaddresshelp.bt.com/selfcare/
I assume BT's view is this helps improve the user experience and provides some directed help instead of a blank error page.
Further details: http://www.bt.com/help/webaddresshelp
Thanks for this RedAmberGreen.
Infinidim
Megadodo Publications
Ursa Minor Beta
If you want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side
If the the reply answers your question then please mark as ’Mark as Accepted Solution’

Unable to access gateway and DNS via VPN (L2TP) with Snow Leopard Server

Summary:
After rebooting my VPN server, i am able to establish a VPN (L2TP) connection from outside my private network. I am able to connect (ping, SSH, …) the gateway only until the first client disconnects. Then i can perfectly access all the other computers of the private network, but i cannot access the private IP address of the gateway.
Additionally, during my first VPN connection, my DNS server, which is on the same server, is not working properly with VPN. I can access it with the public IP address of my gateway. I can access it from inside my private network. A port scan indicates me that the port 53 is open, but a dig returns me a timeout.
Configuration:
Cluster of 19 Xserve3.1 - Snow Leopard Server 10.6.2
Private network 192.168.1.0/255.255.255.0 -> domain name: cluster
-> 1 controller, which act as a gateway for the cluster private network, with the following services activated:
DHCP, DNS, firewall (allowing all incoming traffic for each groups for test purposes), NAT, VPN, OpenDirectory, web, software update, AFP, NFS and Xgrid controller.
en0: fixed public IP address -> controller.example.com
en1: 192.168.1.254 -> controller.cluster
-> 18 agents with AFP and Xgrid agent activated:
en1: 192.168.1.x -> nodex.cluster with x between 1 and 18
VPN (L2TP) server distributes IP addresses between 192.168.1.201 and 192.168.1.210 (-> vpn1.cluster to vpn10.cluster). Client informations contain the private network DNS server informations (192.168.1.254, search domain: cluster).
_*Detailed problem description:*_
After rebooting the Xserve, my VPN server works fine except for the DNS. My client receives the correct informations:
Configure IPv4: Using PPP
IPv4 address: 192.168.1.201
Subnet Mask:
Router: 192.168.1.254
DNS: 192.168.1.254
Search domain: cluster
From my VPN client, i can ping all the Xserve of my cluster (192.168.1.1 to 18 and 192.168.1.254). If i have a look in Server Admin > Settings > Network, i have three interfaces listed: en0, en1 and ppp0 of family IPv4 with address 192.168.1.254 and DNS name controller.cluster.
The DNS server returns me timeouts when i try to do a dig from my VPN client even if i am able to access it directly from a computer inside or outside my private network.
After i disconnect, i can see in Server Admin that the IP address of my ppp0 interface has switch to my public IP address.
Then i can always establish a VPN (L2TP) connection, but the client receives the following informations:
Configure IPv4: Using PPP
IPv4 address: 192.168.1.202
Subnet Mask:
Router: (Public IP address of my VPN server)
DNS: 192.168.1.254
Search domain: cluster
From my VPN client, i can access all the other computers of my network (192.168.1.1 to 192.168.1.18) but when i ping my gateway (192.168.1.254), it returns me timeouts.
I have two "lazy" solutions to this problem: 1) Configure VPN and DNS servers on two differents Xserve, 2) Put the public IP address of my gateway as DNS server address, but none of these solutions are acceptable for me…
Any help is welcome!!!

I would suggest taking a look at:
server admin:vpn:settings:client information:network route definitions.
as I understand your setup it should be something like
192.168.1.0 255.255.255.0 private.
at least as a start. I just got done troubleshooting a similar issue but via two subnets:
http://discussions.apple.com/thread.jspa?threadID=2292827&tstart=0

Unable to resolve server's DNS address.

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