Questions tagged [dns]

Domain Name Service, a method of converting a textual doman name to an IP address

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Yosemite DNS “cannot resolve host”

I am not able to get my MacBook Air to resolve any hosts. I've tried reinstalling Yosemite from recovery, unloading and reloading the mDNSResponder to no avail. An nslookup of www.google.com using 8....
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2answers
7k views

Can't use machine name to login using SSH anymore on Yosemite, how to fix?

from yesterday I have noticed that I can't connect via SSH to my OS X's SSH server anymore using the following command: User-MBP:~ user$ ssh user@user-mbp user is the user on the server, user-mbp is ...
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1answer
2k views

Yosemite /etc/resolver/env.domain.com not working

We have a site to site VPN connection setup in the office to two development networks dev stage I want to be able to let people in the office not be on VPN for dns resolution to work. Each ...
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1answer
2k views

Mac OS X equivalent to Windows “Register this connection's addresses in DNS”

On Windows, in the Advanced TCP/IP Properties of the TCP/IPv4 properties of the NIC there is a tickbox called "Register this connection's addresses in DNS". Does Mac OS X have an equivalent setting? ...
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2answers
12k views

discoveryutil: command not found

After connecting VPN, I often have to flush DNS to get my private hosts to be found. I would do this sudo discoveryutil mdnsflushcache; sudo discoveryutil udnsflushcaches Now, after upgrading to ...
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4answers
7k views

Can Airport Extreme be configured to work with a free dynamic DNS service?

I have an Airport Extreme and wish to set up Dynamic DNS (DDNS) so that I can remotely access my home WiFi security cameras when I'm traveling. I'm seeing certain things that say the built-in dynamic ...
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1answer
297 views

OS X Server behind an ADSL router

I have a Mac Mini with OS X Server installed on my LAN that I use as a Git server and Continuous Integration server. I would like to be able to use these services from outside my LAN but I'm not sure ...
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0answers
62 views

DNS resolves incorrectly, even after purge

After changing a CNAME record on my DNS server, I am seeing issues with the DNS on my Macbook Air running OS X 10.10. Other computers on the same network resolves to the correct, new IP. $ host beta....
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286 views

OSX Flush DNS without sudo

I have a Mac that keeps messing up its DNS (this may be a wider network issue, we have windows clients that are having problems too). Whilst I try to understand the DNS issue I'd like to set an 'icon' ...
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1answer
643 views

OS X 10.10.3 connects to wireless router but unable to resolve domain names

I can connect my daughter's MacBook to the wireless router but not browse the internet with two different browsers (Firefox and Safari). This is a recent development as she has successfully browsed ...
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1answer
3k views

What happens if I remove the localhost address from /etc/hosts

I have looked at the hosts file before but never thought of this. The hosts file overrides the DNS addresses so it can be used to forward sites or to block them. When looking at the file, the default ...
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1answer
82 views

OS 10.10 not connecting through proxy specified by its Internet name

My office proxy has always been specified with its IP address and everything worked fine. However, recently, the proxy was changed to use its Internet name, in the form xxxx-y.zzzz.com Since then, I ...
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0answers
1k views

yosemite DNS resolution woes over IPSec tunnels / VPN

I am connecting to a Cisco IPSec tunnel from MacOS to a hosted pfsense box that is running a number of other IPSec site-to-sites happily, and the DNS resolution is not working. I also am in full ...
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1answer
2k views

OSX Yosemite DNS cache Issues

I'm having a really frustrating DNS cache issue on my Macbook running Yosemite. I'm a web developer so i'm always working with new sites and setting up new servers / domains etc.. so every now and ...
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1answer
1k views

Ping respects hosts overrides - but browsers don't, in spite of DNS cache flushes

I have a baffling problem. Browsers on my system (10.10.3 Yosemite) don't respect overrides included in my hosts file. This includes Chrome, Safari, and Firefox. I have tried rebooting, clearing ...
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0answers
352 views

Yosemite, how to reset/reinstall network?

For some reasons every time I connect to an insecure WiFi, Yosemite cannot route to the DNS servers of that WiFi. The DNS servers are correctly set, just cannot reach them. And after installing ...
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1answer
179 views

Connecting to a Folder on a Different Partition Using AFP or SMB

I'm in the process of setting up a DeployStudio system. Part of the requirement is that the server be able to connect to a Repository of files. On my server, that Repository is located on the ...
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1answer
2k views

how to use different port for dns on Yosemite?

According to https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man5/resolver.5.html you should be able to set a different port for dns, ie: example, 10.0.0.17.55 ...
2
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1answer
838 views

How can I change DNS providers without needing to type in my password?

On Mac OS X Yosemite, you need to enter in your password to change DNS entries. Otherwise the entries are all greyed out. I change DNS frequently (Gogo Inflight among others doesn't work with custom ...
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1answer
522 views

Yosemite: ssh slow to connect when using DNS alias

Since updating to Yosemite, ssh from my Mac to a DNS alias takes about 7-8 seconds. I've observed the following on multiple Macs running Yosemite. Assume I have a host name alpha, and a DNS alias to ...
2
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1answer
1k views

/etc/resolver: TLD itself not resolved by custom resolver

I'm using the /etc/resolver technique for a dev domain as explained in some blog posts around the web (like this one). I used this technique previously on 10.9, but on my new Yosemite there seems to ...
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1answer
192 views

hostname returns another device's name

I realized that the hostname had changed while I was doing some work using terminal in OS X Yosemite. I thought there might be an IP address conflict so I reset it. However I still get another device'...
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1answer
79 views

No website opening but network works perfect, dns perfect as well

I am relatively new to OSX but I do my best here. I read a lot and tried to solve but did not find a answer which fits to my problem well. I have a Mac Mini with Yosemite 10.10.2. My network seems ...
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0answers
96 views

Ping being hijacked?

On my Mac terminal, I typed cat /etc/resolv.conf nameserver 8.8.8.8 nameserver 8.8.4.4 and I do a dig dig www.facebook.com ; <<>> DiG 9.8.3-P1 <<>> www.facebook.com ;; ...
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1answer
1k views

How can I add a DNS record so that example.com resolves to my server.example.com in the OS X Server app?

The default DNS setup leaves me with a record pointing server.example.com to my IP address. I've added a couple of aliases like www, mail. But how can I add example.com, essentially the root domain ...
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1answer
5k views

How do I enable DNSSec on OSX? (Or DNSCurve)

I want to support encrypted IPSec communications, and DANE certs in DNS. Notably, DNSSSec is a prerequisite is IPSec (secure IP addresses from DNS) How can I configure my OS X computer to use DNSSec ...
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0answers
264 views

Yosemite Server / Domain Configuration advice

I'm configuring a mac mini server (latest Yosemite) and I'd like some advice/guidance. I have a registered domain in use for my website, mail and some subdomains – all externally hosted. I'd like to ...
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1answer
512 views

Safari iPhone 6 will not load static website which is hosted on AWS

Currently I am encountering an issue with loading a webpage with Mobile Safari on my iPhone5. The site was just deployed with AWS (Amazon Web Services) here is the link http://www.point.plumbing The ...
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1answer
824 views

Whats the value for DNS when you leave blank DNS in static IP?

When you set a static IP in iOS and you don't specify a in IP address for DNS, which IP does iOS use to resolve hostnames?
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2answers
6k views

websites don't open on a specific wifi connection (probably DNS issue)

I have a cable broadband which works flawlessly; I am using the same to ask this question from my Android. But it doesn't work on my MacBook (10.10.2). Basically, no websites open, although I can ...
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0answers
280 views

How can I prevent hostname from changing?

When I boot up one of our computers it gets a static DHCP address which is specified in our DNS as client1.domain.com and so on. The hostname sets automatically from reverse DNS at bootup and ...
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1answer
1k views

Is intermittent high ping an issue in my Macbook or my router?

Every 20-30 minutes, my internet seems to be unresponsive for about 10 seconds. I can easily see this if I'm running the ping command while it happens: Now, I have two routers on my network, both ...
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3answers
5k views

Why is my hostname resolution taking so long?

Several months ago I noticed that my text editor (emacs) and IDE (IntelliJ) were taking a really long time to start up. The time appeared to vary based on the DNS servers OS X was using. I was able ...
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1answer
1k views

Does the DNS service need to be on in order for the caching service to work on OS X Server?

I didn't think that caching needed the DNS service to be running in order for it to work. Is this true/false? I've been reading a lot of forums where it says you should get the server DNS right in ...
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2answers
2k views

Mac OS X Mavericks DNS name lookup order change?

I noticed Mavericks prefers the DNS server to /etc/hosts (scutil --dns). There used to be a good 'ol "order hosts,bind". Is there anything equivalent for Mavericks so my hosts file is consulted before ...
4
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1answer
882 views

How do I really (dig) flush the DNS cache on OS X 10.9?

I'm on OS X 10.9, according to support.apple.com I can flush the cache with sudo killall -HUP mDNSResponder Unfortunately this does not really refresh my DNS cache at all, also not like this: ...
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1answer
1k views

How to set custom DNS settings?

I'm trying to set my Macbook Pro to use Google's public DNS, but when I go to the DNS settings (System Preferences > Network > DNS) it will enter the new IP address but then immediately reverts it to ...
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2answers
779 views

iOS network connectivity on a local, isolated network with no DNS server

I have a problem with configuring my iPad to work on a local, isolated Wi-Fi network that does not have a DNS server on it. The problem is in how to convince the iPad that it is actually connected to ...
4
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1answer
426 views

Loopback in Yosemite not working

I'm on Yosemite (10.10.2). Since upgrading I got some DNS issues, it seems my loopback isn't working any more. When I'm talking to my app locally via http://localhost:port, localhost in some cases (...
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1answer
1k views

Multiple .local hostname on one computer

Is possible setup multiple .local hostname on one physical computer? Background: home network (behind the DSL/NAT router) (192.168.1.*) have a mac-mini, called as "tango.local". (set in the System....
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0answers
323 views

Can I fix DNS issues on MBP for good?

I noticed DNS issue on my MBP where all of sudden (in the middle of my work, nothing changed) my DNS simply stops working. It's easy to notice that, so I do the following: first I check if DNS is ...
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0answers
844 views

OS X Server Profile Manager port forwarding?

I am setting up a MDM server on OS X Server. This is just a personal project, so I am hosting off of my iMac running Yosemite and OS X Server. I have configured port forwarding and DNS records so ...
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1answer
3k views

How to make OS X Server 3 accessible from the internet?

I am trying to setup an OS X server so that I can see it from outside of my internal network. I have OS X Mavericks with the Server app installed as a VM for testing purposes right now. It has access ...
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1answer
629 views

OSX Yosemite periodically loses DNS info for my server

I'm running OSX Yosemite as my development machine. I run a VPS for the product I'm developing at cursiveclojure.com. Every so often (3 times now over the last month or so) my Mac somehow gets into a ...
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1answer
231 views

i can't access itunes, appstore, even the website www.apple.com using my wifi

i can't access itunes, appstore, even the website www.apple.com using my wifi, both on my iphone or pc. i've tried to looking for the troubleshoot problems using my windows pc and it says "Windows ...
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2answers
2k views

Adding “local” to the DNS Search Domains has no effect

I have a Mac Mini (Yosemite) on my local network and it's not running a DNS server at all. When I want to access it over SSH from a Terminal on my Macbook Air (Yosemite), I can type: $ ssh myserver....
1
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1answer
67 views

Apple Developer DNS Broken

I'm trying to create a developer account at developer.apple.com, but every time I click "Register", it says the server at developercms.apple.com couldn't be found. Is this happening to anyone else? ...
2
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1answer
133 views

Is /etc/resolv.conf changed every time my DHCP lease changes?

I'd like to fire an event via launchd whenever my DHCP lease changes the IP on my WiFi interface. My question is similar to what's being asked in this question, which makes me thing I can watch /etc/...
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2answers
269 views

Unable to ping hostname.local

As seen below the given hostname is not pingable presently. 19:42:43/lib $hostname mellyrn.local 19:42:55/lib $ping mellyrn.local ping: cannot resolve mellyrn.local: Unknown host Note that the ...
2
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1answer
204 views

Manually clear dns cache on mavericks

My DNS cache is broken for a few websites (most notably codeship.com) so I need to clear it. As instructed on numerous websites I've run dscacheutil -flushcache; sudo killall -HUP mDNSResponder in ...