Small DNS issue; www resolution

I'm investigating a few small issues with our server and started with DNS. When I type "host X5.testdomain.com", I get the following response:
X5.testdomain.com is an alias for testdomain.com
testdomain.com has address 216.58.x.x
testdomain.com mail is handled by 10 filter01.mailISP.net
So, why isn't this resolving to the server, instead of the outside IP, which is where the companies website is externally hosted?
Now, a little self-confession. I'm sure it has to do with there is no forwarding in the DNS section of Server Admin, so the only way I could set it up so that employees could get to the company website was to list "www" and the external IP in the "Machines" tab of DNS setup. Was this correct?
How do I get the resolution of the host command correct?

How do I get the resolution of the host command correct?
It's not clear to me that it isn't correct.
So, why isn't this resolving to the server, instead of the outside IP, which is where the companies website is externally hosted?
Have you configured it to do so? Do you have an 'x5' host entry in your domain's zone? What does it point to. In short, why do you expect this to point to some external address (other than the external address it's already pointing to, that is)?
the only way I could set it up so that employees could get to the company website was to list "www" and the external IP in the "Machines" tab of DNS setup. Was this correct?
That's correct. since you're hosting testdomain.com you need to list every hostname in that domain, regardless of whether it's internal or external.

Similar Messages

Dns issues with one domain (Resolved)

i'm currently having dns issues with one domain, in that it won't resolve when I use bt's dns servers.
The domain is owned by a friend in the US who runs his own server for irc, web, and I also have a server that is on his connection, and resolves fine from other machines on different networks, and also resolves fine when I set windows to use the opendns servers, but when it's set to either my routers ip (using bt's dns), or set to automatic (using bt's dns via the homehub), this one domain will not resolve.
I'm pretty certain it's not a windows issue, as it's a clean install of windows 7 that I did yesterday. I've tried rebooting the homehub, and also flushing my dns on windows, but this has not solved the issue.
As I say, it resolves fine on other networks, and also when I use the opendns servers, so I know it's definately a dns issue.
Using bt's dns servers:
C:\Users\admin>ping chatnsn.com
Ping request could not find host chatnsn.com. Please check the name and try agai
n.
Using opendns:
C:\Users\admin>ping chatnsn.com
Pinging chatnsn.com [68.51.24.74] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 68.51.24.74:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
(The timeouts are normal...he has his router set to not respond to ping requests).
Has anyone got any ideas on how to sort this out? Preferably without having to phone the helpdesk...lets just say i've done it in the past, and according to the poeple I spoke to in india, I knew nothing about my own systems, and it was a problem at my end...which was not the case, and I proved this several times.
Edit: This issue appears to have resolved itself, and the domain is now resolving again using the homehub for dns resolution.

Hi,
When NSLOOKUP starts, before anything else, it checks the computer's network configuration to determine the IP address of the DNS server that the computer uses.
Then it does a reverse DNS lookup on that IP address to determine the name of the DNS server.
If reverse DNS for that IP address is not setup correctly, then NSLOOKUP cannot determine the name associated with the IP address.
http://support.simpledns.com/kb/a90/nslookup-cant-find-server-name___-default-server-unknown.aspx
Also refer to:
How to fix NSLOOKUP Default Server: UnKnown?
http://www.randika.info/2013/01/how-to-fix-nslookup-default-server.html
Regards.
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

DNS Issues - MacbookAir running Snow Leopard

It seems like it has been since the update to snow leopard when my dns issues started, but I'm not quite sure that is the problem.
I have a MBA, so all of my networking is done over my Wireless(AirPort)
I can connect to ANY Wireless Networks fine, grab a DHCP address just fine, and also grab 2/3 DNS servers from the DHCP server just fine.
My issue is that at random intervals my MBA will stop resolving addresses. It can continue to ping out to a DNS server via it's IP address, but will have a connection timeout on resolving the address for roughly 45 seconds. When the 45 seconds is up, it will begin to resolve addresses again. I have poked around google and found that it could be due to DNS sever priorities in Snow Leopard using the bottom DNS first instead of the top. I ruled out that issue by adding on one static DNS server (4.2.2.1)in my network configurations manually.
This happens on every network I am connected to that has a gateway to the internet. I have not tried to resolve local names on a local network, but I have tried resolving 'normal' addresses.
For now, I'm writing this post via remote desktop (windows machine) from my MBA with a static IP inserted as the address because if I stick a address that needs resolved first, every 3-10 minutes it will freeze and won't resolve the name, lose the connection until it can resolve the names again.
I have posted what I thought might help someone else diagnose the issue, because I am stump. Please take a look at my testing outputs here:
http://www.oregonstate.edu/~hillchri/dns
Check out the nettestout.txt is where I did the following bash script:
#!/bin/bash
for i in {1..5000}
do
echo $(date)
ping -c 1 4.2.2.1 | grep ms
echo "nslookup www.google.com"
nslookup www.google.com
echo "nslookup www.yahoo.com"
nslookup www.yahoo.com
echo "dig @4.2.2.1 google.com"
dig @4.2.2.1 google.com
echo "------------------------------------------------"
done
Message was edited by: chillconsulting

Did you read the note at http://support.apple.com/kb/HT4030 ?
As of Snow Leopard, Apple does not directly use BIND but the utilities linked with BIND (such as dig and nslookup) still do:
Mac OS X NOTICE
The nslookup command does not use the host name and address resolution or the DNS query routing
mechanisms used by other processes running on Mac OS X. The results of name or address queries
printed by nslookup may differ from those found by other processes that use the Mac OS X native name
and address resolution mechanisms. The results of DNS queries may also differ from queries that use
the Mac OS X DNS routing library.
http://developer.apple.com/mac/library/DOCUMENTATION/Darwin/Reference/ManPages/m an1/nslookup.1.html
Instead, DNS lookup in commands such as ping and for applications such as Safari is handled by mDNSResponder, and the Apple Tech Note listed above describes how it works:
In Mac OS X v10.6 and later, the search order of DNS servers specificed in Network preferences is dynamic, so that servers that don't respond are moved to the end of the search order.
and:
In Mac OS X v10.6, the default DNS server searching behavior is that when a server does not return a result or when it returns SERV_FAIL for a query, and other servers are available to query, the server is temporarily disabled in the search order.

Linksys WRTP54G DNS issue

I have reviewed and tried HOURS of suggestions on this site regarding WI-FI DNS issue ie. "can't find the server" message. This appears to be Router model problem/resolution. Does anyone know the specific fix to get the ITouch to work with an linksys WRTP54G Router. General comments and fixes are not needed, only the one specific for this router. Thanks.

Don't give up on the iPod Touch. It's one of the most remarkable devices ever invented.
Your router routes IP traffic. That's all you need. Your iPod should work with any router. Somewhere, there a configuration setting that is not right.
There is one other possibility, and that's that your ISP is doing something funny like using a proxy server. Unlikely but possible.
You need to attack this systematically. Like has been suggested, narrow down if it is a connectivity or a DNS issue. If you can get to a site by its IP address, then you have a DNS issue. If you cannot, then it is something set wrong elsewhere.
Possibilities:
- MAC filtering (you have ruled this out)
- Encryption (you have ruled this out)
- Is your router not giving out enough IP addresses? If you set the limit to 2 and you have 3 computers, someone will lose out.
- Is your router correctly picking up its settings from your ISP (DHCP), or have you hardcoded some or all of it? Does your (working) PC have some of the missing bits hardcoded - for example, if your router doesn't have its DNS settings, but your IP settings on the PC have them hardcoded, the PC will work, but the iPod won't - unless of course you hard code them on the iPod as well
- Have you inadvertently coded something into your router like a static route, a filter, , or configured a DMZ that is conflicting with the DHCP address that your iPod is getting?
- Have you (or someone in your house) configured some access restrictions on the router, maybe for another PC in the house, like a child's PC?
If all of this is confusing, or something is really screwed up, you could always start form scratch, as if you just bought the router. There is a way to reset it to factory defaults (I believe holding the hidden reset button for a long time), then set it up correctly for your ISP again, and it should work for all computers, iPods, etc.
There is always the possibility that the Vonage firmware is somehow interfering. Do you use the Vonage features? You could always put in a more standard firmware.
Bottom line, it is far more likely that this is a setting on your router than the fault of the iPod. The iPod is just an every day IP device, and should work with just about everything. Do not give up on the iPod.

Windows Server 2008 AD & DNS issue

Hi Guys,
I have an Server 2008 ADDS enviroment with this DC-s:
"List of domain controllers with accounts in the domain:
WTEHU001 (powered off)
WTEHU003 (powered off)
ZEUS
MINERVA
GYAL-DC1
The command completed successfully."
When I change from google dns (8.8.8.8) to local DNS address (127.0.0.1) on DNS entries of NIC of Server, I get error messages:
"The DNS server is waiting for Active Directory Domain Services (AD DS) to signal that the initial synchronization of the directory has been completed. The DNS server service cannot start until the initial synchronization is complete because critical
DNS data might not yet be replicated onto this domain controller"
DNS service is unavailable on this situation.
With google DNS on server's NIC, local DNS service is available and nslookup is working on local machines:
"nslookup zeus
Kiszolgáló: zeus.wtehu.local
Address: 10.31.7.6
Név: zeus.wtehu.local"
But, I get this error message with "dcdiag /test:dns"
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = ZEUS
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\ZEUS
Starting test: Connectivity
The host 57650e4a-f396-4929-92f0-cf1adb2bba95._msdcs.wtehu.local could
not be resolved to an IP address. Check the DNS server, DHCP, server
name, etc.
Got error while checking LDAP and RPC connectivity. Please check your
firewall settings.
......................... ZEUS failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\ZEUS
Starting test: DNS
DNS Tests are running and not hung. Please wait a few minutes...
......................... ZEUS passed test DNS
Running partition tests on : ForestDnsZones
Running partition tests on : DomainDnsZones
Running partition tests on : Schema
Running partition tests on : Configuration
Running partition tests on : wtehu
Running enterprise tests on : wtehu.local
Starting test: DNS
Test results for domain controllers:
DC: ZEUS.wtehu.local
Domain: wtehu.local
TEST: Basic (Basc)
Error: No LDAP connectivity
Warning: adapter
[00000008] Broadcom BCM5716C NetXtreme II GigE (NDIS VBD Client)
has invalid DNS server: 8.8.8.8 (<name unavailable>)
Error: all DNS servers are invalid
No host records (A or AAAA) were found for this DC
TEST: Delegations (Del)
Error: DNS server: wtehu001.wtehu.local. IP:10.31.7.200
[Broken delegated domain _msdcs.wtehu.local.]
TEST: Dynamic update (Dyn)
Warning: Failed to add the test record dcdiag-test-record in zone wtehu.local
TEST: Records registration (RReg)
Error: Record registrations cannot be found for all the network
adapters
Summary of test results for DNS servers used by the above domain
controllers:
DNS server: 8.8.8.8 (<name unavailable>)
2 test failure on this DNS server
Name resolution is not functional. _ldap._tcp.wtehu.local. failed on the DNS server 8.8.8.8
DNS server: 10.31.7.200 (wtehu001.wtehu.local.)
1 test failure on this DNS server
PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 10.31.7.200
Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
Domain: wtehu.local
ZEUS PASS FAIL PASS FAIL WARN FAIL n/a
......................... wtehu.local failed test DNSs
Replication test output:
Repadmin: running command /showrepl against full DC localhost
Default-First-Site-Name\ZEUS
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: 57650e4a-f396-4929-92f0-cf1adb2bba95
DSA invocationID: 20c20b47-dcb3-437b-a316-b0639f90b753
==== INBOUND NEIGHBORS ======================================
DC=wtehu,DC=local
Default-First-Site-Name\WTEHU001 via RPC
DSA object GUID: 5a8cc029-a880-44c1-b3e3-92961fd4d74d
Last attempt @ 2014-01-05 09:46:29 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
23 consecutive failure(s).
Last success @ 2014-01-04 10:07:35.
Default-First-Site-Name\WTEHU003 via RPC
DSA object GUID: 7559995a-cd48-4d43-972e-1492f4c56fd4
Last attempt @ 2014-01-05 09:47:11 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
345 consecutive failure(s).
Last success @ 2014-01-04 10:15:23.
Default-First-Site-Name\GYAL-DC1 via RPC
DSA object GUID: c006625c-244b-4710-a55e-812a764a019b
Last attempt @ 2014-01-05 09:47:17 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
302 consecutive failure(s).
Last success @ 2014-01-04 10:33:17.
Default-First-Site-Name\MINERVA via RPC
DSA object GUID: ad0ee6cf-2f73-4b98-80c3-2cd4693d749d
Last attempt @ 2014-01-05 09:52:05 was successful.
CN=Configuration,DC=wtehu,DC=local
Default-First-Site-Name\WTEHU001 via RPC
DSA object GUID: 5a8cc029-a880-44c1-b3e3-92961fd4d74d
Last attempt @ 2014-01-05 09:46:35 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
23 consecutive failure(s).
Last success @ 2014-01-04 09:53:07.
Default-First-Site-Name\GYAL-DC1 via RPC
DSA object GUID: c006625c-244b-4710-a55e-812a764a019b
Last attempt @ 2014-01-05 09:46:41 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
29 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\WTEHU003 via RPC
DSA object GUID: 7559995a-cd48-4d43-972e-1492f4c56fd4
Last attempt @ 2014-01-05 09:46:47 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
30 consecutive failure(s).
Last success @ 2014-01-04 09:53:07.
Default-First-Site-Name\MINERVA via RPC
DSA object GUID: ad0ee6cf-2f73-4b98-80c3-2cd4693d749d
Last attempt @ 2014-01-05 09:46:47 was successful.
CN=Schema,CN=Configuration,DC=wtehu,DC=local
Default-First-Site-Name\WTEHU001 via RPC
DSA object GUID: 5a8cc029-a880-44c1-b3e3-92961fd4d74d
Last attempt @ 2014-01-05 09:46:53 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
23 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\MINERVA via RPC
DSA object GUID: ad0ee6cf-2f73-4b98-80c3-2cd4693d749d
Last attempt @ 2014-01-05 09:46:53 was successful.
Default-First-Site-Name\GYAL-DC1 via RPC
DSA object GUID: c006625c-244b-4710-a55e-812a764a019b
Last attempt @ 2014-01-05 09:46:59 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
24 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\WTEHU003 via RPC
DSA object GUID: 7559995a-cd48-4d43-972e-1492f4c56fd4
Last attempt @ 2014-01-05 09:47:05 failed, result 8524 (0x214c):
The DSA operation is unable to proceed because of a DNS lookup failure.
24 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
DC=DomainDnsZones,DC=wtehu,DC=local
Default-First-Site-Name\WTEHU001 via RPC
DSA object GUID: 5a8cc029-a880-44c1-b3e3-92961fd4d74d
Last attempt @ 2014-01-05 09:46:29 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
23 consecutive failure(s).
Last success @ 2014-01-04 09:58:05.
Default-First-Site-Name\GYAL-DC1 via RPC
DSA object GUID: c006625c-244b-4710-a55e-812a764a019b
Last attempt @ 2014-01-05 09:46:41 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
42 consecutive failure(s).
Last success @ 2014-01-04 09:57:52.
Default-First-Site-Name\WTEHU003 via RPC
DSA object GUID: 7559995a-cd48-4d43-972e-1492f4c56fd4
Last attempt @ 2014-01-05 09:46:47 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
43 consecutive failure(s).
Last success @ 2014-01-04 09:58:07.
Default-First-Site-Name\MINERVA via RPC
DSA object GUID: ad0ee6cf-2f73-4b98-80c3-2cd4693d749d
Last attempt @ 2014-01-05 09:47:17 was successful.
DC=ForestDnsZones,DC=wtehu,DC=local
Default-First-Site-Name\WTEHU001 via RPC
DSA object GUID: 5a8cc029-a880-44c1-b3e3-92961fd4d74d
Last attempt @ 2014-01-05 09:46:29 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
23 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\GYAL-DC1 via RPC
DSA object GUID: c006625c-244b-4710-a55e-812a764a019b
Last attempt @ 2014-01-05 09:46:41 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
25 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\WTEHU003 via RPC
DSA object GUID: 7559995a-cd48-4d43-972e-1492f4c56fd4
Last attempt @ 2014-01-05 09:46:47 failed, result 1256 (0x4e8):
The remote system is not available. For information about network troubleshooting, see Windows Help.
25 consecutive failure(s).
Last success @ 2014-01-04 09:53:08.
Default-First-Site-Name\MINERVA via RPC
DSA object GUID: ad0ee6cf-2f73-4b98-80c3-2cd4693d749d
Last attempt @ 2014-01-05 09:47:17 was successful.
DsReplicaGetInfo() failed with status 8453 (0x2105):
Replication access was denied.
DsReplicaGetInfo() failed with status 8453 (0x2105):
Replication access was denied.
Regards,
Gabor

Public DNS servers should not be used in IP settings of DCs. You need to configure them as forwarders instead. Also, I would recommend using your ISP DNS servers instead of Google ones.
For the recommendation of IP settings to be used on DCs, please refer to what is written in this Wiki article: http://social.technet.microsoft.com/wiki/contents/articles/18513.active-directory-replication-issues-basic-troubleshooting-steps-single-ad-domain-in-a-single-ad-forest.aspx
This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
Get Active Directory User Last Logon
Create an Active Directory test domain similar to the production one
Management of test accounts in an Active Directory production domain - Part I
Management of test accounts in an Active Directory production domain - Part II
Management of test accounts in an Active Directory production domain - Part III
Reset Active Directory user password

DNS is working but unresolved DNS issue remains

Perhaps someone can help me with a DNS issue.
I have DNS working fine on a my Mac server.
I take responsibility for the domain (example.com) and establish the primary zone with the nameserver as server.example.com.
I also setup a A record for the phrase www.example.com to point to the externally hosted website.
That all works fine inside the network.
sudo changeip -checkhostname resolves just fine.
The problem is that I need to establish a reference for a test website : www.example.com/wp-admin so that it works inside the network.
That URL has a different IP address than the www record.
A) I'm not sure how to add the part of the URL past example.com
B) I cannot add a / as part of the machine name - the server software forbids it.
Can anyone clue me into how to do this?

DNS is not the tool you need here.
DNS translates host names and (for some protocols) IP ports, but doesn't translate file paths.
In the classic URL scheme (and simplifying things), the DNS translation deals with getting an IP host address for the string that's between the first double // and the subsequent / in the URL, and nothing else.
To differentiate further, you can either use a virtual host (what Apple calls a "Site" in Server Admin) on the target server, or can configure the web server (usually via a rewrite rule) to redirect the incoming HTTP request to the path you want.
Depending on exactly what you're up to here, sometimes a reverse web proxy can be used. A reverse web proxy is where you're forwarding an incoming HTTP request from one server along to another web server, either on the same or another IP host.
[Here|http://labs.hoffmanlabs.com/node/1329] is a write-up on virtual hosts on Mac OS X Server.

DCDIAG reports broken delegations but not having any DNS issues.

I am planning on moving my 2003 domain to a 2012 domain, I need to resolve all the dns issues with my current domain. When i run DCDIAG i get the following error for all of my name servers. I have 3 seperate forests. I use forwarders to forward to all my
dns servers. I have no DNS issues as far as i know. When i run dcdiag on any of my DC's i get the following error for everyone of my Name Servers.
DNS server: 20.26.212.204 (server.mydomain.com.)
4 test failures on this DNS server
This is a valid DNS server
Name resolution is funtional. _ldap._tcp SRV record for the forest root domain is registered
Delegation is broken for the domain mydomain.com.mydomain.com. on the DNS server x.x.x.x
[Error details: 9003 (Type: Win32 - Description: DNS name does not exist.)]
The only zones in my dns are the _msdcs.mydomain.com and mydomain.com. I do not understand why it is saying mydomain.com.mydomain.com in the error. I am not sure where else to look to try and resolve this error.
Any help greatly appreciated.
Thanks for your help

Hi,
Base on my experience, that must be the Delegated zone issue, this issue is because the new DNS
has duplicated the name for parent and child domain, you can try to backup your current DNS then delete the duplicate zone then restart the DNS service.
More information:
Back up a Zone File
http://technet.microsoft.com/en-us/library/ee649198(v=ws.10).aspx
Understanding Zone Delegation
http://technet.microsoft.com/en-gb/library/cc771640.aspx
Create a delegation for a domain controller
http://technet.microsoft.com/en-us/library/cc757375(v=ws.10).aspx
Hope this helps.
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DNS Issues, can't set static DNS server

I have an Airport Extreme (which I'll call the router). It has an IPv6 tunnel (to Hurricane Electric), so it hands out IPv4 DHCP and announces an IPv6 network as well. The DNS servers configured on the router are OpenDNS'.
My Apple TV 2 is connected via wired Ethernet to the router. It was using a DHCP address provided by the router, which made the DNS server the same address as the router. I wanted to manually set the DNS to use my ISP's, so that I can make sure the Netflix streaming issue I have is not a DNS issue.
So I changed the Apple TV to a manual address, and set the DNS server to my ISP's DNS server (Apple TV can only have one DNS server? Odd.)
After I save this, the Network page shows the correct manual IP, mask, and router, but the DNS Address is an IPv6 address (one that belongs to my network, but the entire address isn't visible), not the one I set. When I Configure TCP/IP again, and I reach the DNS Address page, the first digit of the existing address is "20", and the rest of the digits are "0". Interesting note as well: if I press Down, the number will increment to 19, and so on, but if I press Up, it changes to 0. Obviously the UI isn't designed for IPv6 addressing, but there's an IPv6 address in there nevertheless.
Screenshots:
http://www.flickr.com/photos/random_robin/5310011344/
http://www.flickr.com/photos/random_robin/5310016288/
I have tried to set the DNS Address multiple times now, and have restarted the Apple TV. The IPv6 DNS Address persists.

After 16 hours of working i don´t have seen this easy solution. I had tried with Internet Explorer and Opera but finaly i have need to use Firefox.
Thanks a lot to solve it.

Frequent but random DNS issues

I have been experiencing frequent but random DNS issues that have been affecting my access to websites and above all email. The problem is that it comes and goes without any intervention on my part but when it becomes really bad I have found that changing the DNS server in the network settings tends to fix things immediately for a while until it starts up again a day or two later. Obviously this shouldn't be necessary and it's been happening now for several weeks.
At first I had problems with BT DNS and after hitting my head against a brick wall for a week or so was amazed that the problem cleared up as soon as I put in the Google DNS. Then yesterday I was having major hassles and I remembered the DNS trick so I tried Open DNS with no improvement but tried BT again and everything was immediately OK. Most of the time I've just been struggling along and waiting for things to improve.
In an effort to try and troubleshoot the email issues I contacted my webhost and ran a trace route which show *** hops immediately after listing the BT HomeHub rather than a clear path of progression that my webhost says may be related to an ICMP protocol block in the router but I'm still seeing this even if I temporarily disable the firewall on my homehub and computer.
I have spoken with various BT support staff and they clearly just don't understand the issues. I am sick of resetting the router and calling BT just to go through the same steps. On one call the support guy felt it was likely to be an issue with my router so I asked about them sending me a replacement and they won't do it.
After two years of headaches with non functioning YouView I've just about had it with BT. Does anybody have any suggestions how to fix these problems?

This is what a traceroute looks like when trying to connect to BT.com
Traceroute has started…
traceroute to www.bt.com (193.113.9.162), 64 hops max, 72 byte packets
1 bthomehub.home (192.168.1.254) 1.501 ms 1.049 ms 0.934 ms
2 * * *
3 * * *
4 217.41.217.13 (217.41.217.13) 21.465 ms 19.531 ms 20.967 ms
5 host109-159-245-2.range109-159.btcentralplus.com (109.159.245.2) 22.287 ms 22.830 ms 22.663 ms
6 31.55.164.177 (31.55.164.177) 20.768 ms 20.926 ms 20.712 ms
7 31.55.164.107 (31.55.164.107) 21.666 ms 21.210 ms 21.068 ms
8 109.159.248.93 (109.159.248.93) 22.297 ms 22.197 ms 21.800 ms
9 109.159.248.180 (109.159.248.180) 28.189 ms
109.159.252.202 (109.159.252.202) 26.659 ms
core1-te0-10-0-7.ilford.ukcore.bt.net (109.159.248.144) 26.981 ms
10 core1-pos1-0.birmingham.ukcore.bt.net (62.172.103.81) 31.349 ms 31.834 ms
core2-pos1-1.birmingham.ukcore.bt.net (62.172.103.93) 29.987 ms
11 iar1-gig5-4.birmingham.ukcore.bt.net (62.6.196.94) 48.045 ms
iar1-gig5-5.birmingham.ukcore.bt.net (62.6.196.98) 33.903 ms
iar1-gig5-4.birmingham.ukcore.bt.net (62.6.196.94) 30.034 ms
12 62.172.57.218 (62.172.57.218) 31.126 ms 28.949 ms 29.447 ms
13 * * *
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I'm guessing that my Powermac G5 Quad running 10.4.11 does support extended desktop. My present monitor is a 1600x1200. Can a second monitor of smaller size and lower resolution work as an extended desktop?

I'm guessing that my Powermac G5 Quad running 10.4.11 does support extended desktop. My present monitor is a 1600x1200. Can a second monitor of smaller size and lower resolution work as an extended desktop?

It should easily.
Power Mac G5: Display Compatibility
http://support.apple.com/kb/HT2707?viewlocale=en_US
Display Support:
Dual Displays*
Resolution Support:
2560x1600
Details:
Apple advertised that this system can support "two Apple flat-panel displays for each graphics card installed". The default graphics card can support "up to 2560 by 1600 pixels" with the dual-link DVI port and "up to 1920 by 1200 pixels" with the single-link DVI port. It also can support analog resolutions "up to 2048 by 1536 pixels".
http://www.everymac.com/systems/apple/powermac_g5/stats/powermac_g5_quad_2.5.htm l
"Quad Core" (2.5)
Video Card:
GeForce 6600
VRAM:
256 MB
Primary Max Resolution:
2560x1600
Secondary Max Resolution:
1920x1200
Display Connectors:
1 dual-link DVI
1 single-link DVI
http://www.everymac.com/systems/apple/powermac_g5/faq/powermac-g5-adc-ports-dvi- ports-resolutions-supported.html

Weird Wifi DNS issue

Hi all,
I recently reinstalled windows 7 on my laptop and began to encounter very annoying wifi issues. It will connect to my router but the small yellow excalmation mark always notifies me that I have no internet access. Wired connections work fine however. So
recently someone suggested it may be a DNS issue and I tried switching to the Google DNS servers for IPv6 (2001:4860:4860::8888 and 2001:4860:4860::8844). That resolved my issue perfectly and I was finally able to use wifi again. Just as a test, I switched
back to "Obtain DNS settings automatically" and it continued to work, so I left it at that. However, two days later it stopped working all over again. I tried switching to the Google DNS settings again and it didn't work. I tried using the IPv4 settings
and it didn't work. I tried that whilst disabling IPv6 and it still didn't work.
The most frustrating part is I tried pinging internal stuff and it works fine, for example, 127.0.0.1, my router IP, another computer on my network (which works fine). I'm even able to log into my router configuration page on Chrome, but anything else doesn't
work, including webpages and even Steam.
Any ideas?

You need to talk to your ISP's Technical Support. The DNS addresses are supplied by your ISP and are usually listed in the modem or router depending on your setup. The DNS address in Windows should be the base address of the modem/router.
If your losing DNS addresses when using WiFi you need to look at the settings within the WiFi router.
It is very feasible your are experiencing random failure of your WiFi router or you system's WiFi chip, or you may have a defective driver for your system WiFi chip.
If another computer's WiFi works, then most likely it's either a defective WiFi driver or the WiFi chip itself going bad on your system and not a Windows 7 problem.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

DNS Issues with Time Capsule - DNS Proxy periodically dies

hi all .... looking for some suggestions
I have a time capsule 1TB, connected to a linksys adsl modem in bridge mode, with the TC acting as DHCP server for my local clients. In the PPPoE settings I also enter the primary and secondary addresses for DNS that my ISP supplied.
I am able to successfully connect to the internet, and all clients successfully pick up an IP address, and each client picks up the TC as the DNS proxy. Everything works perfectly as it should.
Usually once per day, there seems to be a slight hickup with the internet connection (hard to tell whether I am losing the PPPoE or some other issue). When this happens, the PPPoE connection remains active, as I am able to access anything on the internet from an IP level. However, the DNS proxy service on the TC seems to die and as a result, all internet browsing fails. If I reboot the TC, everything comes back to normal. If I dont reboot, the only way to get browsing working is to manually enter the DNS IP address from ISP into the client PCs. However, this is a manual fix that I should not have to perform.
Looking for advice and guidance. Seems like a bug but I cant tell. If I was able to set the DHCP server to pass out the ISP supplied addresses that would also work, but I cant.

Just got off the phone with support for this very same problem. DNS Proxy is definitely dying in the TC, looks like a firmware issue to me.
This is the 3rd TC I'm on. First was a 500GB, had this problem, replaced it under warranty at Apple's direction, replacement did the same, just upgraded this weekend to 1GB, and same issue still. All on 7.3.2 firmware.
TC 1TB, PPPoE to my ISP, ISP's DNS Servers listed in the PPPoE config in the TC.
When a host gets DHCP from the TC the only DNS returned is the TC itself, since it proxies the ISP DNS servers.
Once every day or two, the DNS proxy dies. local network works, and I can add my ISP's DNS addresses in my host config and I have DNS again, but this is definitely something dying in the DNS proxy in the TC.
Just for kicks trying to switch from my ISP's DNS servers to OpenDNS now since someone said that worked for them, but I am not hopeful... I don't see this as a host DNS issues at all.
The dead proxy is very clear:
$ nslookup apple.com. 192.168.1.1 # that's the TC
Server: 192.168.1.1
Address: 192.168.1.1#53
** server can't find apple.com: SERVFAIL
$ nslookup apple.com. 208.67.222.222 # that's OpenDNS
Server: 208.67.222.222
Address: 208.67.222.222#53
Non-authoritative answer:
Name: apple.com
Address: 17.149.160.49
I replaced a linksys router with the TC and am kind of unhappy that a $500 router dies every couple of days. My cheapo Linksys router never needed to be restarted, it only ever got rebooted once every year or so when the house lost power long enough for the UPS to run out of battery.
Help us out here Apple, I replaced a $50 router with a $500 because I like the flavor of your kool aid, and this thing dies every day or two. Even if you can't fix why the proxy is dying every couple of days, can you please at least update the firmware to maybe restart the proxy if it quits working?

ITunes not responding due to DNS issues?

iTunes 11.1.0.126 on Windows 7, never had a problem in the past 5 years... iTunes runs 24/7 on this machine. It has been running for days since my last reboot, maybe a week. I was listening to a podcast, then went into the store to search for an artist, clicked on an album, listened to preview, back button, different album, preview, back button, different album, etc then one time when I clicked the back button iTunes became unresponsive until I had to kill it.
I can no longer open iTunes, it always opens as a transparent window with a border and is immediately "Not responding" in task manager. Same thing happens in safe mode. I tried rebooting too.
Around this time I started noticing other problems with my internet connection. Seems like my provider is having DNS issues because certain websites hosted on the east coast won't load, but west coast websites will (I am on the west coast). I tried loading these websites on my phone through cell data and they worked, so I figured my provider is having problems.
Now I'm wondering if iTunes calls home or tries to make some sort of connection when it loads, regardless of safe mode or not, and this causes the application to hang immediately. Does anyone know anything about this, or how I might be able to get the iTunes application to run again?

Well, it wasn't a DNS issue, it was a routing issue that affected ISP customers in half of the country. https://community.shaw.ca/thread/9284?start=0&tstart=0
I can confirm that iTunes will now open and is functional. It seems that if the application can't access some internet resource immediately when it launches it will immediately lock up and never come back! No offline mode??!?!

Internet DHCP/DNS issues with WRT1900ac

I've had a WRT1900ac now for about 2 weeks and the problems seem to be escalating. Need help. And yes, I've already read dozens of threads about these issues and nothing seems to be working.
Most of the problems seem to be centered around this DHCP/DNS issue that so many have been reporting.
First, the symptoms:
Galaxy S4 phones when connected via wifi have some apps that don't update (facebook and google play)
Some computers (both Win 7) will connect to the network just fine, both wired and wireless - but won't be able to get to the internet
I've spent the last 2-3 days of my life reading forums and trying all sorts of things to get this to work properly (like my old router) and I'm still stuck. Some things I've tried:
Firmware is up-to-date (latest version: 1.1.8.164461)
Manually assigned static DNS in router config settings (connectivity -> local network) to various combinations including the router address, 8.8.8.8, 8.8.4.4, 75.75.75.75, 75.75.76.76 (I have comcast), OpenDNS addresses, etc. I read that the router address is not needed, so I stopped including it.
I manually assigned IPs and DNS on the Galaxy S4 phones and that seemed to work... but also seems unnecessary.
I've reserved DHCP addresses on the computers in question, that didn't seem to work, I also manually set DNS on one of the comupters (can't on the other... long story/not my computer) and that worked for a while and then stopped working.
The only way to get one of the computers on the internet now is to turn on the guest network (even though the computer is hard wired to the router), connect, and then the wired network works. No clue why this is, but my guess is that it needs the guest network for DNS, then it fails back over to the wired network. Once that happens, I can actually turn off the wifi on the computer and everything works great... until I reboot. Key point: I can't change any settings on that box other than entering in SSID/passphrase info for the wireless connection. I can connect to the regular (non-Guest) wifi just fine - I just can't ever get to the internet.
I've tried massaging DHCP settings on the router until I'm blue in the face - Static DNS, reserving DHCP addresses, hell I even put one of the computers in the DMZ to see if that would work and it still can't connect to the internet (it's worth noting that with my old router, Linksys WRT310N, the setup was literally plug-and-play - no hassle with any of this).
I've tried countless router reboots, factory resets, turning off my modem and router for 2+ minutes, and nothing is working.
I even read somewhere that if you modify your DHCP settings at all that the WRT1900ac stops doing DNS properly and breaks, so I even tried several "hard" factory resets and used all the default DHCP/DNS settings. And it worked... for a few hours.
Seriously, I'm at my wit's end. I'm out a lot of money on this thing and it's been one headache after another. Please help.

I think for most people its a bad idea to hold out that hope, lol. It seems like a great piece of hardware but if you really need a router and don't want to have to 'play' with it, its probably not a good choice. I have an EA6900 that I am very happy with but it has the same restrictions as far as DNS and I really hate the idea that I am forced to use the smartwifi portal. I would really like for them to give me a choice of the old gui or the new one and let ME decide. Lots of routers to choose from out there now and new ones seem to be coming out all the time so do some reading and see if something suits you better. Good luck!

[SOLVED] Greetings... and DNS issues... (why is it so slow?)

Hey everybody!
My name is Stephen. I'm new to Arch (hence I'm posting in the newb forum). A bit of background: I'm a CS major in the good 'ole US of A. I used Debian/Ubuntu for 2 years before now. I actually installed Arch just yesterday, so today is my second day of usage. Why do I want to switch from Ubuntu? Several reasons, but they can all be summed up thusly: I want to tinker with and understand how my machine works. I don't want to interface with a blackbox that just "works." Arch seems to be geared towards what I want.
And I've been learning alot, haha. Which I why I am now here to ask for help.
I originally installed Arch at school. Everything was great. Then I took my laptop home and I found out something was wrong. Pacman took an extra 5-15 secs before each download started, but once the download started, I got normal speeds. I observed a similar behavior in my web browsers I tried (Firefox/Surf). No matter what I do, this behavior persists. I suspect this is a DNS issue, and thus I have tried the follow methods of correction so far.
1) Reinstalling to a default configuration.
2) Disabling IPV6.
3) Screwing around with etc/hosts, etc/resolv.conf, and etc/dhcpcd.conf (though I probably did something wrong. Also, I'm not sure how to force Arch to accept my changes after modifying these files.)
I also read somewhere that using HTTP mirrors works better for pacman, but I already was using an HTTP mirror anyway, so I knew that couldn't be the problem.
I have not tried DNS caching yet. However, given that every other machine in the house runs fine, I suspect it is my configuration that is wrong. Does anybody know how I can pinpoint this as DNS for sure? And if so, how I can fix it? Thanks for all your time/help!
Here are some config files/snippets of interest. Most of this should be straight from a basic Arch install.
etc/resolv.conf
# Generated by dhcpcd from eth0
# /etc/resolv.conf.head can replace this line
domain domain.actdsltmp
nameserver 192.168.0.1
nameserver 216.165.129.157
# /etc/resolv.conf.tail can replace this line
Note that 192.168.0.1 is the address of my router on my LAN. I believe the second address is a DNS provided by my ISP.
etc/hosts
#<ip-address> <hostname.domain.org> <hostname>
127.0.0.1 localhost.localdomain localhost moebius
::1 localhost.localdomain localhost
etc/rc.conf snippet
HOSTNAME="moebius"
eth0="dhcp"
INTERFACES=(eth0)
# Routes to start at boot-up (in this order)
# Declare each route then list in ROUTES
# - prefix an entry in ROUTES with a ! to disable it
gateway="default gw 192.168.0.1"
ROUTES=(!gateway)
Last edited by sskeirik (2011-03-14 23:21:19)

Output of 'dig google.com a'
; <<>> DiG 9.7.3 <<>> google.com a
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 52741
;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 10000 IN A 74.125.65.104
;; Query time: 17 msec
;; SERVER: 192.168.0.1#53(192.168.0.1)
;; WHEN: Mon Mar 14 14:09:45 2011
;; MSG SIZE rcvd: 44
Output of 'dig @8.8.8.8 google.com a'
; <<>> DiG 9.7.3 <<>> @8.8.8.8 google.com a
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43373
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 229 IN A 74.125.45.105
google.com. 229 IN A 74.125.45.99
google.com. 229 IN A 74.125.45.103
google.com. 229 IN A 74.125.45.147
google.com. 229 IN A 74.125.45.106
google.com. 229 IN A 74.125.45.104
;; Query time: 74 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Mar 14 14:10:37 2011
;; MSG SIZE rcvd: 124

Small DNS issue; www resolution

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