Questions tagged [dns]

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

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1answer
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Intermittent AirPort issue on MacBook Pro Early 2015

I have an Apple MacBook Pro Early 2015, with AirPort issues. The problem is extremely complex, but effectively it means I get page time out intermittently. I've reinstalled macOS from scratch, ...
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0answers
935 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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1answer
802 views

Wifi connection but no internet

I have joined my home WiFi network and I don't get Internet through it anymore. Phones and other computers have no issues, others who were here haven't changed anything or noticed any difference. I ...
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1answer
1k views

Resolving host…: Internet doesn't work (Chrome and Safari)

My MacBook sometimes can't connect to the internet. Chrome displays "Resolving host" but a web page doesn't appear. Safari also doesn't work. Interestingly, sometimes Google seems to work as the only ...
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2answers
13k views

Local hostname is already in use on this network?

When I turned my computer on this morning this is the message I received: This computer's local hostname "----Macbook-pro.local" is already in use on this network. The name has been changed to "------...
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1answer
2k views

Where is the dns server configuration file located in OS X Server App on OS X El Capitan?

What is the dns server bundled with OS X Server app on OS X El Capitan and where is the configuration file located? For some reason Server App crashes and the only service I tried to configure is DNS....
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1answer
550 views

Wifi, DNS problem on MacBook Pro retina

On a Macbook Pro retina 13 2014 with El Capitan 10.11.5 I can't access websites through their domain name (google.com, bing.com, etc). I can access the internet with Google Chrome, but with others ...
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1answer
410 views

Mac won't load some web contents

My MacBook Pro 2012 running ML has started not to load certain web pages. I tried with every browser but I have the same issue. I thought it was a firewall trouble, but it's disabled. Tried to ping ...
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1answer
735 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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1answer
236 views

Only HTTPS websites working otherwise I receive ERR_CONNECTION_REFUSED [duplicate]

I am facing annoying problem of only HTTPS websites working on my Mac (in all browsers). I can only visit Google, YouTube, Facebook, Yahoo etc. So far, I tried following: Websites shows error of: ...
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1answer
82 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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2answers
16k views

Problem - 'DNS address could not be found'

I've been trying to access the Myspace website and am receiving this message - 'www.myspace.com’s server DNS address could not be found' I've tried using Chrome and Safari and keep getting the same ...
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1answer
951 views

Difference between dig @www.google.com ns . and dig www.google.com ns

I have a mac and am using terminal to try out the dig command. I was trying to use the dig command from a tutorial, which stated that if I use the syntax given below dig @www.google.com ns . I ...
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1answer
162 views

DNS Flush Issue

Not sure if this is the right forum to ask this question. The computer in question is a Mac Book Pro (10.9.5, aka Mavericks). There is a site that in Chrome that repeatedly comes up with its "Aw, ...
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1answer
1k 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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0answers
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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0answers
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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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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1answer
451 views

loookup server IPs the website runs on with nslookup error - Got recursion not available from 192.168.1.1, trying next server

I would like to lookup servers cnn runs on for educational purposes. I issued nslookup www.cnn.com command in terminal and got an error: ;; Got recursion not available from 192.168.1.1, trying next ...
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0answers
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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1answer
2k views

Is Ethernet sharing over WiFi from a Mac supposed to hand out 192.168.2.1 as the DNS server?

I have a MacBook Pro and I share its Ethernet connection to my iPhone and iPad as well as other wireless devices (enabling Internet Sharing in the Sharing preferences). However when I check on my ...
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1answer
888 views

Verify DNSSEC being used by Safari when visiting a web site

Is there some way to verify that DNSSEC was used by Safari when visiting a web site? I'm most interested in Safari for Mac OS X. But if there is a way in iOS, that would be important as well.
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2answers
2k views

OS X Server DNS, on local network redirect external IP to internal IP

I want it to be so that, when I attempt to visit my server at 94.xx.xx.xx, it will automatically redirect me to the internal address 192.xx.xx.xx, when doing so from the local network. Can this be ...
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0answers
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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0answers
92 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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1answer
3k views

How to specify DNS server with USB hotspot?

A combination of two problems: (1) Either my Mac or my iPhone has a Wi-Fi problem; and (2) the cell provider's DNS servers have issues. Because of the second problem, I explicitly specify other ...
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1answer
3k views

Using Server 5.0.15 to share internet WITHOUT internet sharing

I am running a mid 2010 MacMini as a server. OS X 10.11.3 and Server 5.0.15. I am connecting to the internet on the built in Ethernet (Ethernet) and have a USB to GigaBit Ethernet adapter (Ethernet 2) ...
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0answers
89 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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0answers
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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2answers
1k views

How can I get DNS resolution on-line and offline for virtual machine and local app using dnsmasq or similar

I have read all the answers I can find about setting up dnsmasq as a local DNS server for development. But I can't make it work for my case. Most out there want 127.0.0.1 to be resolved for names in ...
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2answers
2k 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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3answers
173 views

OS X 10.6.8 direct IP translation and DNS issues

This is the situation: I have a web server on my LAN that serves up beta versions of my documentation for my free software. This web server, via my router, responds to an external IP address. ...
2
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1answer
2k views

Blocking an IP address

I need to block a particular website on my Mac (OSX 10.11.1, El Capitan). I have already made the changes to /etc/hosts but the website is still not blocked when testing from Chrome. I think this has ...
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0answers
624 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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1answer
3k views

How can I force default DNS query to work in TCP mode?

In China, the so-called GFW often contaminates DNS results like $ dig @8.8.8.8 archive.org ;; QUESTION SECTION: ;archive.org. IN A ;; ANSWER SECTION: archive.org. 2662 IN A ...
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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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2answers
1k views

OS X Server Caching / DNS Question

our network has 3 primary public IPs (datacenter, user set a, user set b). I would like to set up the Caching server, and am just trying to understand the breakdown of the DNS entry. In the data ...
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3answers
2k views

How can I force Google SafeSearch on my kids' Mac?

I'm pretty sure there's a way to force enable Google Safe Search by editing a hosts file on my kids' Mac. Can someone tell me how? I'm guessing I need to sudo nano /etc/hosts According to How to: ...
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1answer
94 views

Flaky DNS/connection issues when using Wi-Fi in Japan. Fifty-percent of page/images load if lucky

I'm living in Japan (if that's relevant) and often to go net- manga-cafés (or Starbucks) for my internet fix (too expensive to get it at home, ATM). After connecting to a Wi-Fi network, however, I'm ...
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1answer
64 views

MBP - have to re-enable Wi-Fi every 30 mins

I have a MacBook Pro running on El Capitan (but the issue was already present before the upgrade, so it's not related). I have the Mac since a bit less than a year. It is still running perfectly but ...
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1answer
1k views

How to bind hostname with ip?

There are 2 VMs running on VMWare on a remote server. For instance: devops-01 and devops-02. Both of them have SSH access enabled. To access to the first one I do: ssh dev@devops-01. For the other one:...
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0answers
911 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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0answers
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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2answers
3k 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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4answers
7k views

DNS resolution broken in El Capitan with Thunderbolt Ethernet Adapter on Offline network

After upgrading to El Capitan how do I enable DNS resolution on an offline, internal computer network? Before upgrading to El Capitan I could connect to my internal network, set my DNS and search ...
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3answers
15k views

/etc/hosts will not update/refresh at all

I add to my /etc/hosts file this : 127.0.0.1 youtube.com Save the file. Flush everything with : dscacheutil -flushcache; sudo killall -HUP mDNSResponder Reboot my computer 30 times. Then I run: ...
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1answer
144 views

How do I “flush” my DNS/web services so that it sees the updated website like everyone else?

On all my roommates computers my website that I recently changed where the DNS points to actually points to the right location, and when you load it all is well. However for myself, when I load the ...
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2answers
7k views

Mac doesn't use local dns for .local

I'm using an macbook with Yosemite 10.10.3. There are no problems to access the "standard" internet. But in my own network I use a local nameserver at my fritz-box. It is configured to use this DNS ...
8
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1answer
13k views

Make `hostname -f` return fully qualified hostname

How can i make hostname (i.e. the unix commandline tool hostname, invoked in terminal) return a hostname including the domain information? At the moment, hostname, hostname -f and hostname -s return ...
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1answer
2k views

How do I access my private browsing history?

I'm trying to recover some pages that I had open when my macbook (OSX 10.8.5) crashed. Unfortunately I was using Opera (V30) in private browsing mode. I've tried looking at my DNS cache - but not ...