Questions tagged [dns]

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

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Can't connect to any Apple related services via home network

I own an iPhone 5 and a 12-inch iPad Pro and I ran into this weird problem today where I was unable to reach any Apple related services via my home network. I was suddenly unable to connect to the App ...
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582 views

MacOS and split DNS

MacOS: 10.13.3 Pritunl VPN client: v1.0.1653.28 I have been following this: https://lists.apple.com/archives/macnetworkprog/2005/Sep/msg00047.html and http://hints.macworld.com/article.php?story=...
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807 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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623 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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8k 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 ...
3
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1answer
146 views

macOS keeps reverting to static DNS IP addresses

I have a strange issue that only started occurring recently (within the last 2 public OS update releases). The DNS IP addresses for all interfaces (at least, the WiFi and Ethernet interfaces) are ...
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452 views

Safari on iMac (Mojave) can't resolve http://<hostname>.local

Safari 12.0 on my 2017 iMac cannot resolve local computer names. In my particular case the computer is a RaspberryPi with a default web page. If I put "pi-star.local" in the Safari address box, I ...
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764 views

How to override DNS resolver ordering while connected to L2TP VPN

OS: macOS Mojave 10.14 (18A389) Current network setup: Local domain: home.rossipedia.com Subnet: 172.16.10.0/24 Gateway / DHCP server / DNS server: 172.16.10.1 Output of scutil --dns: DNS ...
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704 views

macOS Sierra/High Sierra and IPv6 DNS via SLACC

In my (dual stack) network, a router provides IPv6 addresses and DNS servers (RDNSS) via router advertising. There is no DHCPv6 server running and I want my mac to accept the DNS servers being ...
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1k views

Chrome refuses to flush / refresh DNS—why?

On OSX El Capitan, I have an issue developing a Wordpress site hosted locally by MAMP. When I visit the root hostname specified in MAMP, Chrome redirects me to an old hostname I previously used for ...
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898 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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1k 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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303 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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155 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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24 views

DNS ignored in VPN settings

I have an IKEv2 VPN set up in my network preferences. It works fine, I can access any desired computer in the remote network by the IP. Also, I added our DNS server to the VPN connection though ...
2
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0answers
163 views

Homebrew dnsmasq “Service exited with abnormal code: 2” (Mac OS X Sierra 10.12.6)

Workaround (update) A quick workaround is to stop the job through brew services stop dnsmasq. Then you should first unload the launchd configuration file and then reload it. $ sudo launchctl unload -...
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0answers
13 views

MacBook Pro on company network loses Internet access after 10 minutes, but still has internal network access

I have a Mac user that after 10 minutes loses Internet access. The issue started yesterday. I have recreated the location with the DNS addresses in my troubleshooting efforts. When I restart after ...
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0answers
828 views

Can't access internet after installing NordVPN

As soon as I install the NordVPN app from the app Store on MacOS Mojave, the internet connection dies. I can't use my browser, or any internet connected apps. Deleting the app and then restarting ...
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272 views

Reduce or disable DNS cache in 10.13 and 10.14

I'm trying to get a hold of the property list, I'm guessing, that specifies the TTL or the amount of records held of the DNS cache of the system, if is not user/root accessible, then command that ...
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749 views

MacOS mDNSResponder misbehaving with local DNS in VM

[VirtualBox 5.1.30 r118389 (Qt5.6.3), HOST: MacBook Pro High Sierra 10.13.1, GUEST: Ubuntu 14.04 LTS] My VM is setup with two NICs, one using NAT, the other using Host-Only Networking. My VM is ...
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0answers
905 views

Why the DNS service is consuming so much mobile data?

I have reset the mobile data statistic the day before. So these are data incurred within a 24 hour window. I don't understand why the DNS service will consume a disproportionate amount of data. ...
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410 views

Ping `hostname` stuck about 5 seconds on macOS Sierra

I will describe this problem details in shell interaction records: $ host `hostname` Host myhost.local not found: 3(NXDOMAIN) $ cat /etc/hosts | grep 127.0.0.1 127.0.0.1 localhost myhost.local $ ...
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0answers
934 views

Console log is full of tcp errors mostly from Safari, all coming from google domains

My console log the past week has been full of these errors. Generally they appear when anything accesses a google domain using HTTPS, such as loading fonts, or google analytics, or even google css ...
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617 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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322 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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2k 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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77 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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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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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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266 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. ...
2
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591 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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0answers
7k 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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108 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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424 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 ...
2
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0answers
1k 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 Vigor ...
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446 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 ...
2
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0answers
261 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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424 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 ...
2
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1answer
125 views

Offline DNS resolution on Sierra

I have configured dnsmasq to resolve all .dev domains to 127.0.0.1. This works great as long as my Mac is connected to the Internet (using Wi-Fi or even my iPhone in hotspot mode). As soon as I turn ...
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29 views

How to set system-wide DNS server settings on macOS, not for each network?

I'd like to set one DNS server IP that my Mac should always use, but currently I have to repeat the same process every time I connect to a new network: System Preferences > Network > Wi-Fi > Advanced ...
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0answers
37 views

DNS on VPN does not work

I have an Azure Point-to-Site VPN over IKEv2 configured and it works well. The problem is with DNS. DNS adresses are filled in Advanced tab of the VPN connection but it does not resolve anything. ...
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37 views

Connected to Ethernet but no Internet access

I am having a very frustrating problem. My 2009 iMac is connected to our network by Ethernet, however it cannot access the Internet. All my other devices work fine, and local adresses (192.168.0.1 ...
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0answers
72 views

iPhone using cellular data even if disabled

I'm currently abroad and my carrier is charging absurd fees for data plan. I decided to turn off completely cellular data and rely only on WiFi but my iPhone is still using few KBs of data every day. ...
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26 views

MacOS prefer /etc/hosts over DNS

My Mac is running dual stack IPv4/IPv6 which works fine. In my /etc/hosts I have added a IPv4 pointer to my development VM like so: website.test 10.10.10.35 This works fine. But I noticed that some ...
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286 views

macos mojave -> “software update” -> “A server with the specified hostname could not be found”

How do I get rid of this message and in fact manage to update the machine? I can browse internal and external websites fine, name resolution works fine, a packet capture tcpdump -i en7 port 53 and ...
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31 views

Cannot flush cache

No matter what I do, I cannot get a web site to load after something changes with the DNS. For instance, if meh.blah.example.com had a misconfigured DNS value and produced an ERR_NAME_NOT_RESOLVED ...
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66 views

Safari and Chrome loading the wrong website

My client is having an issue that is exclusive to her computer. When viewing her website on any other computer the website that shows is the current one being hosted by Squarespace. When viewing on ...
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446 views

How to run 'named' (bind) on Sierra?

Many OS versions ago, I ran a local copy of 'bind' for my in-home LAN. I noticed that it made a huge difference in the speed of name resolution. Performance of my local internet connections is ...
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388 views

Macbook Pro not loading insecure webpages/content in any browser

Forgive me if this is the wrong place to ask this, but I've run out of options. Within the past week or two my web browsers will not load anything unless it has 'https' in front of it. I am a web ...