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

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3
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73 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: ...
3
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580 views

Seeing discoveryd error: Basic DNSResolver Return Code is 9 and we are treating it as an error!

Seeing this repeated pretty frequently in the Console logs for on my Macbook Pro running 10.10: 10/24/14 9:59:04.175 AM discoveryd[57]: Basic DNSResolver Return Code is 9 and we are treating it as ...
3
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0answers
436 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 ...
2
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5k 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 ...
2
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94 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; ...
2
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109 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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391 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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379 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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2k 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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243 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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246 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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44 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 ...
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44 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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80 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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14 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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76 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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102 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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153 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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899 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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259 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 ...
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200 views

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

Yestderday 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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127 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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57 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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180 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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688 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 ...
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81 views

Why opening a ssh connection to Lion is taking too long?

Why is SSH taking too long to open when I SSH to Lion. I have to wait ~30s to see the Password prompt. The DNS is working on the Lion server.
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25 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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9 views

DNS occasionally stops working

OS X 10.9.5 Every couple of weeks, manual dns lookups (e.g. via nslookup or host) still work, but system lookups do not (so e.g. ping fails to lookup the host). The first few times it happens ...
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11 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 ...
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10 views

Problems connecting to mail server in Mail.app after server change

I have moved to a new server (web server and mail server in it) for my website. In order to not create confusion, I created the same mailboxes in the new server with the same passwords, in order not ...
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27 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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51 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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65 views

OS X Yosemite Server - DNS issues

I purchased a domain and have a third party company manage email service for it. My MX records point to the email hosting provider. My A record for my domain points to my static IP provided by my ISP. ...
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14 views

DNS possibly cause of failure to send emails

I have a mac mini running OS X 10.10 with Server.app that has DNS service enabled. The primary zone is example.com. In the zone, I have a list of machines: machine1.example.com - 10.0.1.11 ...
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36 views

DNS server entries disappear upon applying server details

I'm having issues entering my DNS server information upon configuration. Each time I enter the servers, they immediately disappear - with some attempts just disappearing upon entering a single ...
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46 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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28 views

Change dnsmasq from .dev to .local

I have followed these instructions for setting up a dnsmasq on my Mac. I originally set it up to use .dev, but now I want to change .dev to .local. However, when I try using .local instead, it ...
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166 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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121 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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146 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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34 views

Frequent mDNSResponder host resolution issue

I have a frequent problem with one specific host on my network. I have a local DNS server running on one of the machines. I have host nas.mydomain.com configured through that DNS with A and AAAA ...
0
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0answers
182 views

iPhone 6 & Verizon: Tethering established over IPV6 only — IPV4 websites don't work

This issue happens periodically (but it seems to survive reboots). It seems when tethering I'm assigned an IPV6 address & IPV6 DNS server, but no IPV4 addresses. I'm able to use google services ...
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643 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 ...
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211 views

DNS/Routing issue when connected via Wi-Fi and USB Modem at the same time

Before I updated to Yosemite, I used to connect to the internet via Wi-Fi and a USB Modem at the same time. I'd set my Wi-Fi connection to have priority over the USB Modem (using the Network ...
0
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0answers
221 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 ...
0
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0answers
108 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 ...
0
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0answers
227 views

Why is my iMac the only device that has network problems?

I was trying to solve my internet/DNS problems on my iMac but nothing does make sense to me and I need some help on this ^^ Since I moved to another place and now have another ISP, I started ...
0
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0answers
189 views

Customized default user profiles randomly not loading

I manage Macs in public computer labs and classrooms at a university. My general set up is as follows: Clients are running 10.8.5, OD Masters are running 10.7.5. Open Directory Master to manage ...
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42 views

_mdnsresponder generates 5‘000 DNS requests/s

On our network with several tens of thousands machine we notices several OS X machines that from time to time begin to send more than 5000 DNS requests per seconds. We were able to identify some of ...