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

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13 views

DNS resolution for a hostname in local network fails

From my OS X 10.11.4, I do: ping ubuntu-workstation ping: cannot resolve ubuntu-workstation: Unknown host However, if I do the same from a windows laptop, the call is successfully resolved. The ...
5
votes
4answers
25k views

Can't access specific websites with Macbook Air (10.7.5 Lion)

This has really baffled me: While my internet connection works, I can't access specific websites with Safari (or any other browser for that matter). I don't get a 404 page; Just an error message that ...
0
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0answers
7 views

Network Interface Missing in Bind Order (Set Service Order dialog)

I have a VPN connection to my office set up and configured. The VPN connection works absolutely fine. It also shows in my Network Preferences pane. But it is low in the DNS bind order (and so I ...
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0answers
31 views

Airport Express DNS problem

In my living room I have a wireless router, the “main” router. One of its ethernet port is connected to a powerline (TL-PA4010KIT). In my bedroom I’ve another powerline connected to an AirPort Express ...
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6answers
25k views

OS X 10.10.1 /etc/hosts & /private/etc/hosts file is being ignored and not resolving

Like the title says, running os x 10.10.1. if i have an entry in my hosts file and do a dig or nslookup it still shows a different IP than what is in my hosts file even after trying to flush various ...
0
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0answers
16 views

Specific DNS search domain queries sent to different server

I'm running OSX 10.9.5. I plan on upgrading at some point, so please let me know if that will impact an answer. I have some work-specific hosts that I need to resolve (dev1.internal.example.com, ...
1
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1answer
20 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
59 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 ...
3
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4answers
11k views

Why will my Mac only load Google and Facebook?

I'm running into this really strange problem on my 2013 iMac at home (running Mavericks): the internet will work for a while, then at some point it will stop being able to load any websites except for ...
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0answers
21 views

Iphone is slow in picking up the local DNS server on WiFi infrastructure

I have a setup a Wireless infrastructure with local DNS server (DNSmasq) running on a server (Static IP: 192.168.19.2) on the infra. The local DNS server resolves lot of public domains to a local IP ...
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49 views

Mac unable to login network user after reboot - no route to host

A real strange one this. I have just setup a Mac that is bound to AD and joined to the wireless (authenticated at logon screen) I know this because I am able to ping the Mac when it is sitting at ...
1
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3answers
3k views

DNS resolution broken in El Capital 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 ...
3
votes
2answers
782 views

iPad and iPod virus?

Every now and then my iPad or iPod touch will redirect my to a particular site in Safari. Could this be malware of sorts that has crept on to my iMac and then my iOS devices? I don't think it's a ...
2
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2answers
2k views

Airport Extreme Name Resolution

I have a little issue with my airport extreme. I'm using the device in my corporate network which has two DNS server for resolving intern and external names. When I do an nslookup "public adresse" ...
0
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1answer
2k views

What does it mean when I get a server failure when connecting to a router with DNS protocol

I'm currently attempting to debug a Super Duper startup problem where it takes between 10-15 seconds to start up on my machine when wireless/internet is turned on. I have communicated with Dave from ...
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0answers
152 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 ...
1
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2answers
5k views

How do I get rid of browser redirect malware?

I am using Mac OS X Leopard on a MacBook Pro. I must have been very careless at some point, since I managed to let some malware install in it. While browsing I get randomly redirected to different ...
22
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6answers
27k views

DNS lookups fail with e.g. `ping`, but work with `host`

I'm using pfSense 2.0rc3, and I've set it up as a DNS forwarder and enabled "Register DHCP leases in DNS forwarder" and what I understand are all the appropriate settings to get DNS server for local ...
2
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0answers
34 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 ...
1
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0answers
69 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 ...
2
votes
1answer
118 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) ...
2
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1answer
40 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 ...
2
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0answers
285 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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2answers
350 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 ...
1
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3answers
1k views

Cannot use ssh/ping domain name after connecting to openvpn

I've got two macs, both on the same network, both using Tunnelblick to connect to vpn. Both with same settings. Both connect fine and both have the same settings for DNS and search domain applied ...
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0answers
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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0answers
240 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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0answers
136 views

El Capitan openconnect DNS issue

I (more or less) followed this gist to setup openconnect on my OS X (10.11.3) and the connection is working just fine by IP addresses, but not with DNS resolving. (The nslookup command is working ...
1
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1answer
97 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 ...
1
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2answers
103 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 ...
5
votes
2answers
1k views

Lion Server DHCP randomly loses settings and reverts to defaults

I’ve been trying to set up Lion Server on a Mac Pro with it acting as the router/gateway/firewall/DNS/NAT and DHCP. I’ve been trying to setup an internal-only network named mycompany.something. After ...
7
votes
3answers
66k views

How can I change the cellular DNS server on iOS?

Is there a way to set a global DNS server that will be used for all connections (both Wi-Fi + cellular data)? If there isn't a uniform manner to specify DNS, can I just change the DNS used by the ...
1
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1answer
433 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: ...
2
votes
2answers
3k views

Deleted com.apple.mDNSResponder.plist in Mavericks, how to get it back?

I already had trouble with DNS not resolving for all apps except Chrome, in my troubleshooting I for some reason deleted com.apple.mDNSResponder.plist Deleting this file did not help in any way.. ...
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0answers
86 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 ...
0
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3answers
66 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. ...
-1
votes
1answer
2k views

MacBook Pro 10.9.1 loading web pages very slow over 116Mbps Airport Extreme 802.11ac

This is driving me crazy. I have a MacBook Pro running OS X 10.9.1 connecting to the internet via an Airport Extreme 802.11ac. Speedtest shows I am pulling 116Mbps. A week ago or so I installed ...
1
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1answer
87 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 ...
1
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2answers
730 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 ...
1
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1answer
393 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 ...
0
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0answers
56 views

Ridiculous amount of reverse DNS lookup request - *.in-addr.arpa

I'm using OpenDNS as an external DNS server. Recently I've logged in to check dashboard. I've discovered that I'm sending a ridiculous amount of DNS requests to *.in-addr.arpa - reverse DNS lookups ...
2
votes
2answers
752 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 ...
0
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0answers
26 views

IOS : Set DNS for data cellular [duplicate]

I was wondering can we then change the DNS default value (would like to use OpenDNS) maybe we can use the MMSC settings? We can change the carrier data cellular settings straight on the iPhone ...
0
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0answers
28 views

Internet fading in and out OS X?

I have recently been experiencing a new problem with internet reliability on OS X. We have two OS X El Capitan desktops. My mom's mac is in the office and receives an ethernet connection and that ...
0
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0answers
88 views

Problem with IPsec on Mac OS X 10.11

We have configured IKEv2 VPN for mobile clients on pfSense. Server is configured for pushing DNS setting to clients, but after connecting my MBP it can't resolve local hostnames (FQDN and shortnames ...
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0answers
67 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 ...
4
votes
1answer
116 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 ...
1
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3answers
323 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: ...
2
votes
2answers
2k 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
36 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 ...