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

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3
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94 views

OS X doesn't query local DNS names properly

None of our OS X client machines in our workplace query local DNS names of our servers properly after connecting to VPN. For other client machines – including Linux and Windows – it works properly. ...
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89 views

Command line DNS utils work, Chrome & Safari fail to resolve hostnames on El Capitan. Why?

I'm using Docker Compose to host a small dev environment, which includes a DNS container. I've added the docker-machine's IP as the first DNS server in my wifi settings (there are no wired ...
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168 views

Domain Name Resolution (DNS) stops working randomly

While browsing and using the web, DNS stops working. Open web-chats like Google Hangouts keep working, but opening new websites, Skype, and others are stuck to "Resolving host name". This happens ...
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236 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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6k views

SSH'ing with just a machine name on internal network: nodename nor servname provided, or not known

Yesterday I was able to ssh into my development box by using the machine name. Today, I can't. I can nslookup and use chrome to navigate to my box using just the machine name. ping and ssh do not ...
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575 views

Preventing google search for custom top-level domain

How can I prevent safari to redirect the user to the google search page for addresses with custom top-level domains? Given an address of the type http://application.test where test is a primary zone ...
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54 views

Wi-Fi Connection but no Internet (checked DNS, Checked Router, Clean OS install)

I can connect to a Wi-Fi Network with my MacBook Air (Yosemite 10.10.5) but do not get Internet. Other MacBooks and Windows laptops I connected to the same Router via Wi-Fi receive Internet. With an ...
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40 views

How can I install bind-utils on El Capitan

I would like to use DNSSEC tools (like dnssec-keygen, dnssec-signzone, ...) on my Mac without running or installing the BIND9 service. Unfortunately for me Homebrew seems only to have the BIND9 ...
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48 views

Not able to resolve my domain name intermittently on iOS

I am experiencing a strange behavior w.r.t DNS resolution when connected to certain WiFi networks. (only on iOS devices) Issue is: Safari is able to resolve my domain name correctly but sometimes for ...
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224 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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299 views

Does Apple's iOS have a backup DNS server configuration?

Yesterday I experienced something interesting while setting up a Wi-Fi access point. The access point was connected to the Internet via a local modem (gateway), which had no DNS server address ...
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98 views

Added website with a subdomain on Mountain Lion server couldn't be found on other machines

My server is accessible via example.com and I want my website to be accessed via sub.example.com. I added a website to Mountain Lion server with domain name that's actually a subdomain; sub.example....
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125 views

Strange domain name appears in Sharing Preferences, source unknown

First of all before anyone asks, I have already set my DNS name in the Terminal with scutil, which is reflected on the Terminal prompt and returned by the hostname command. I also understand that this ...
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406 views

not resolve local domins from /etc/hosts

Somehow I have a problem (previously everything was ok), hosts form /etc/hosts can't bre resolved. I have local domain in /etc/hosts, like 127.0.0.1 test.local It's loading in browser well but too ...
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416 views

Browsing to a nested subdomain resolves wrong page

Our corporate network has some web applications hosted in a nested subdomain hierarchy. A "subdomain's subdomain", as you will. For example: Root-> http://*.mydomain.com (resolves to: 192.2.2.200) ...
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3k views

Can Time Capsule/Airport (4th gen) serve local DNS?

I just got a 4th gen Time Capsule for my wife to use as her own backup server, and I'm potentially interested in using it as the main router and Wifi AP on my home network. My current router and AP is ...
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248 views

Lion Server - DNS crashing

Every now and then (once per week?), my Mac Mini (2011, 8GB RAM i5) running Lion Server, stops the DNS server bringing my network to a grinding halt. The only way I have found to get it to restart is ...
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306 views

DNS gone after wakeup

I'm having problems with the DNS resolution after a wakeup from sleep. The system I'm running is Mac OS X Lion 10.7, and I am properly connected to my Wifi. When I issue a ping google.com in the ...
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23 views

How do I clear Google Chrome's DNS cache entirely?

Chrome is quite aggressive about caching HTTP responses. I assume this is for speed. However, for a web developer such as myself, this can often be problematic, since pages I work on often change a ...
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23 views

DNS resolution got extremly slow after issuing ipconfig commands

I wanted to inspect DHCP messages. To produce them I issued these 2 commands: sudo ipconfig set en0 BOOTP sudo ipconfig set en0 DHCP After that, I am having severe DNS resolution difficulties. It ...
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62 views

Terminal command to clear DNS cache doesn't seem to work

I do a lot of website work where I change nameservers for a domain, wait overnight for it to propagate on the host server, then go back to work on the site. Lately, what happens is that I can see the ...
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75 views

Repeat DNS flushing required on El Capitan

I have a mid-2011 Mac Air running OS 10.11.3 and I repeatedly have to run a DNS flush to resolve issues connecting to the internet. This seems to be a recent problem and I don't know what has caused ...
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39 views

DNS fails over time. Reconnecting to wifi solves it momentarily

The DNS lookup fails after some time of being connected. I can get it back working if i reconnect to my wifi. However it seems to happen more frequently. I enabled debugging in the mDNS responder to ...
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376 views

How to access/print the DNS/mDNS cache in OSX El Capitan?

I am trying to get a visual of the DNS cache (IMHO this should be extremely easy but somehow I cannot get it in El Capitan). I have tried things like: dscacheutil -cachedump which some reason returns (...
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134 views

Getting high ping when MacBook Air is connected to Wi-Fi

I have a 13" MacBook Air with Yosemite 10.10.2 installed: As soon as I connect it to my WiFi, I get a very high ping (1600 ms) on both my machines: Windows 7 PC and my MacBook. As a result browsing ...
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101 views

Custom nameservers, /etc/resolver/ and SRV records

I want to use a DNS server on my machine to resolve lookups for all names ending in .dev. I've created /etc/resolver/dev to do this, and checked that it works for A records: › dscacheutil -q host -a ...
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43 views

Macbook Pro 10.10.5 Can Only Connect to Large Sites like Google, StackExchange, Wikipedia

This strange connection issue has been very stubborn. In short, after every reboot I can access the entire internet for a short period of time. After a time (say 30 minutes) all but major websites ...
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112 views

How can I get OS X's Dynamic DNS client to register a local IP address?

Background: I'm essentially re-creating Back To My Mac. I have a VPN set-up on my VPS, handing out addresses in the 10.x.y.0/24 range, with BIND running and accessible at 10.x.y.1. There's a zone ...
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118 views

Device name on router is different than OS X hostname

There are tons of questions about changing a Mac hostname, and while I went through most of them, I could never find this nuanced answer: Why do routers always seems to receive the first hostname ...
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87 views

VPN connects, IP won't change : traffic issue

I spent too much time on this, so I'm asking you guys if you can figure it out. I can connect to my VPN, but my IP won't change (I can access the internet) and since P2P isn't working I guess the ...
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345 views

mDNSResponder no longer resolving DNS with avahi-daemon

Since upgrading to El Capitan, I can no longer resolve DNS entries via mDNS if the host is a Linux system running avahi-daemon. For example, I have a server that's available at media-server.local. ...
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34 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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77 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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626 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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25 views

Mac OS X Panther Server DNS settings

How do I change change the DNS time to live, TTL, settings using Mac OS X Panther Server?
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1k views

Authentication Server could not be contacted

Our OS X Server machine has had no issue at all with being in the Windows AD domain right up until we updated it to OS X 10.10. Now it behaves bizarrely, refuses to connect to our Exchange mail server,...
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520 views

iOs Simulator ignoring Hosts file

I'm actually working on a website development and I configured all the needed hostname on my /etc/hosts files. Actually in our office we use an internal DNS for the QA servers and we override ...
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194 views

Does the Airport Extreme support wireless roaming and guest network?

I'm looking to purchase two Apple Airport Extreme base station units to use as wireless access points only. They will be connected via Ethernet to my network closet. Internet gateway is handled by my ...
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89 views

Changing /etc/hosts not getting affected

I have added the following line in my /etc/hosts: 127.0.0.1   myapp.corp.com so my full /etc/hosts looks like: 127.0.0.1 localhost 127.0.0.1   myapp.corp.com 255.255.255.255 broadcasthost ::1 ...
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156 views

Back to Mac service when using Unlocator DNS

I have a Mac Mini at home that I would like to connect to using the "Back to my Mac" service. Normally it works just fine. But if I update my Apple Airport Extreme with DNS from unlocator.com (or ...
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188 views

DNS Lookup Failure on Terminal Only (Mavericks)

I recently did a clean install of Mavericks, and ever since I have, I've been having intermittent DNS lookup failures on the terminal only. Browsers work fine (Chrome, Safari). But nothing works ...
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191 views

What methods exist to give an iPhone an external hostname, on wifi or cellular data?

I want to give my iPhone (iOS7) a hostname, which will automatically resolve from anywhere as long as the phone is online. My iPhone can be jailbroken as part of the solution; that's not preventative. ...
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1k views

How should I configure my VMware Fusion VM network connections?

I've been a long time user of VMware Fusion on my iMac and I've just bought a MacBook Pro to allow me to work on projects whilst I'm away from my desk. On my iMac, I have a few VMs, each with their ...
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365 views

Resolve domain name using the internal IP when inside the intranet?

I want to access a web server using the same domain name while I am inside the intranet but a different IP. Let's say that I register into a public DNS: mysrv-public.example.com public-ip mysrv-...
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6k views

DHCP and DNS fail to work in Mac OS X 10.8.2, still work in recovery mode

I've been most unfortunate to see my mid-2012 Macbook Air 11" running Mac OS X 10.8.2 stop properly receiving DHCP leases AND resolving DNS names to IPs. I know, there is 10.8.5, and Mavericks that ...
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190 views

DNS resolution temporarily failing

Macbook air mid-2012 w/ Mountain Lion. Whenever I wakeup from a long sleep and also on some random moments when it's on, i get DNS resolution failures for every server, with nslookup saying ;; ...
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1k views

AirPort Extreme, OS X Server, DHCP and Dynamic DNS

I have a AirPort Extreme and OS X Server (Mountain Lion). On my local network, I have a number of OS X, Windows, Ubuntu and other machines using DHCP to obtain network addresses. Almost all ...
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58 views

named (bind DNS) not quitting

I am trying to quit named, but it keeps popping up. I tried removing the configuration an key files, unloading it from launchd, you name it. Yet it keeps starting. How do I kill it permanently?
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205 views

DNS issue with Microsoft Sharepoint

I am having this issue on my MacBook Air but not on my Windows machine or even my Windows virtual machine on the Macbook Air. Client uses Microsoft SharePoint for documents and logs. I was given two ...
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810 views

ping and browsers do not seem to use local DNS server? (or: mDNSResponder looses local dns server?)

(1) Stack Info DNS Server CentOS 5.6 64bit running dnsmasq 2.45 on IP 10.9.8.2. Serving as DNS-Only Server using it's local /etc/hosts. /etc/resolv.conf on this machine has Router Draytek ...