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

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1answer
449 views

Periodic problem with DNS resolution

Since a few days, the DNS resolution stops working for random amounts of time, a few seconds to a few hours (I logged it with a simple script). It sometimes goes back to normal without any ...
2
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1answer
2k views

How to fix when I can nslookup and dig an internal hostname, but I cannot ping or ssh to the internal machine?

I can nslookup and dig an internal hostname, and I get a rapid response, but I cannot ping or ssh to the server. All external hostnames work fine for both ping, ssh, dig or nslookup. ssh -vvv ...
2
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1answer
120 views

Configured Airport as Bridge and use OS X Server for DHCP and DNS, no Internet

I want to use my Mac Mini as an OS X Server with the following services: DNS DHCP Open Directory Profile Manager I configured my Airport Extreme under the "Internet" tab to use my static IP ...
2
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0answers
86 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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0answers
255 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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0answers
324 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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0answers
238 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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2answers
820 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" ...
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1answer
1k views

How long does the DNS cache last in Mac OS X?

I know I can manually flush the DNS cache, e.g. with sudo killall -HUP mDNSResponder. But how long will the cache last if I don't do this? Does it reset on a reboot?
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2answers
2k 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 ...
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2answers
145 views

Can't access certain websites

I'm trying to access the site http://www.svenskadomaner.se but it's unreachable from my MacBook Pro (OSX 10.8.5). The domain belongs to a web hosting company and it's not only this specific site I ...
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2answers
372 views

Macbook Pro 15 inch Late 2011 - Internet always slow until I change DNS lookup address

This problem has plagued me across multiple networks (Ethernet and Wi-Fi, across multiple ISP's) and multiple operating systems (Snow Leopard, Mountain Lion, Mavericks). While browsing, my internet ...
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1answer
471 views

How to I display the current DNS servers from the command line under OS X?

I want to display the DNS serververs that are used by the current network setup on OS X, from the command line.
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1answer
31 views

Setting a specific dnsentry

I have a server running at port 4433 on my localhost machine. I'd like to refer to the service as http://mytest.com:4433 from the browser or any script that I write. How could I set the DNS on OSX to ...
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2answers
272 views

How can I make the UP arrow work in Terminal's nslookup command?

When I open terminal, I'd like the up arrow go to the last command I typed within nslookup. Instead I get a strange escape sequence. What must be done to allow me to up arrow in nslookup?
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2answers
2k views

Why do local network hostnames resolve only in certain cases?

I have a linksys router which runs "tomato" Linux and serves as the local DNS server. It runs dnsmasq. I recently upgraded from OS X 10.4 to 10.6. Since then, resolution of hostnames on my local ...
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2answers
3k 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 ...
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1answer
239 views

10.8.2 DNS in hosts lookup slow

As a web developer, I need to make a domain redirect to localhost. I modified the hosts file to do that. But I don't know why it always took so long to do the lookup. How can I solve this?
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1answer
146 views

Is it possible to check the DNS server you're using on the iphone?

on windows, you'd use something like ipconfig /all to see the dns server you're hitting. What would u do on an iphone or mobile device?
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1answer
953 views

What are the domains of the iTunes & Software Update CDNs?

Background info: the various iTunes stores (and I think Software Update) use the a CDN to deliver all those jigabits of data. Google DNS can mess with the speed of these CDNs. I like using Google ...
1
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1answer
854 views

How do you access a subdomain on localhost with VMWare Fusion on a Mac?

I am able to access localhost on a Mac through Windows XP on VMWare Fusion by using my Mac username like this: http://username.local:3000/ But how do I do that with a subdomain, something like ...
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1answer
11k views

Multiple IP addresses for same host name in /private/etc/hosts?

I have a corporate mail account (exchange 2007) that uses a self-signed SSL certificate. No matter what I do, Mail always complains about this when I connect. If I look at the details it always says ...
1
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1answer
941 views

Mac doesn't recognize hosts on local network

I have a Linux server in my cupboard. My Windows machines can connect to it via its hostname. I have never configured any DNS server; all I did was assign the Linux box a name when I installed Ubuntu ...
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1answer
109 views

OS X Server 3.0 - DNS & Server Names

I have two Mac Mini's running Mavericks Server. The hostnames for them are as follows: macsvr01.mydomain.com macsvr02.mydomain.com I want to be able to access macsvr02 by going to ...
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1answer
186 views

Cannot configure OpenDNS on iPad

The instructions on Internet Safety Project seem simple enough, but, according to all the OpenDNS tests, websites are not working. I am using a Wi-Fi iPad2 with iOS 7.
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1answer
90 views

Mountain Lion OSX Server One IP Virtual Sites www resolving to wrong Site

I am trying to get 2 domains working properly with one static IP on ML OSX Server. When I set a domain = www.domain2.com- it resolves to domain1.com. I have dns set for domain 2 at godaddy, where ...
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1answer
174 views

On OS X is it possible to override DHCP assigned DNS servers but still keeping them for fallback?

By default I would like to use the google public DNS servers and to fallback to intranet ones when these are failing. Is this possible? ... I am looking for a setup that would not break when I move ...
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2answers
873 views

Lion resolving DNS names when querying server directly, but not when used in a command or app

I've recently (as in minutes ago) added a hostname and reverse (A and PTR) records for a hostname on my internal network, using a Bind DNS server. For some reason, i can both dig and nslookup this new ...
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1answer
287 views

Change of IP / Configure AirPort Extreme

Earlier today our IP Address changed due to misconfiguration caused by our ISP. I'm trying to ensure our IP won't change again. So I spoke with our ISP and they assigned us a static IP (we were ...
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1answer
80 views

Finder slow after wake up from standby mode

I have 4 or 5 Network shares in my Favorites bar in the Finder. Any time the Macbook wakes up from Standby, the Finder takes forever to show up. If I remove the Network shares from the Favorites bar, ...
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1answer
320 views

Cannot ping localhost

I have setup a new MacBook Pro retina, things were going well but now I cannot access localhost. $ ping localhost ping: cannot resolve localhost: Unknown host My /etc/hosts file is fine, or at ...
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2answers
353 views

Shared Internet apply /etc/hosts

How do I make those who connect to me via a shared internet connection use my /etc/hosts file? I was thinking something along the lines of creating a DNS server, but I was hoping maybe there is a ...
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1answer
691 views

Ethernet Working but No Internet Connection

In my office, nearly everybody uses Mac and we have just only one Windows 7 system. Just this morning, all the Mac systems (10.8.2) could not connect to the internet but could connect to the network, ...
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1answer
214 views

Cannot Resolve Host

For some reason my system will not resolve hosts added to /etc/hosts. If I add an entry: 127.0.0.1 somename.dev It won't resolve. If I add this, however: 127.0.0.1 somename.dev ::1 somename.dev ...
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1answer
2k views

Mac Frequent SSL errors when trying to reach google.com

On my mac, I often try to go to Google.com and chrome gives me an error: "You attempted to reach www.google.com, but instead you actually reached a server identifying itself as www.apple.com. This may ...
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3answers
1k views

nslookup & dig fail; ping, traceroute, and scutil -r work

I'm running on 10.8.2. All of a sudden, traditional nameserver lookups are failing on my machine: $ nslookup www.att.com ;; connection timed out; no servers could be reached $ dig www.att.com ; ...
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2answers
392 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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1answer
894 views

Mail.app keeps trying to connecting to old mail server

Yesterday my web host (Dreamhost) unexpectedly moved my email account to a new server. Most of my email clients didn't skip a beat, and continued to connect to the server and receive mail. However, ...
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1answer
409 views

Using a dyn.com dynamic host name with an AirPort device

I have an AirPort Extreme base station with firmware 7.6.1 and would like to access it remotely using a dynamic hostname registered with dyn.com (e.g. example.dyndns.org). An explanation is given by ...
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1answer
323 views

Fast External DNS Servers and My Intranet

The local DNS servers, where I work, stink. They're absurdly slow and often completely fail to resolve web domains during certain periods of heavy sunspot activity. In response, I've just added ...
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1answer
839 views

Ping and curl resolve to one IP, dig/nslookup/host resolve to another

OK, I have a very interesting case. I have a custom DNS server that is vending out IP addresses to varying servers in my test network. If I use dig, nslookup, or host, it tells me that it's properly ...
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1answer
296 views

Local DNS server access delays

Access to a local DNS server is always delayed by ~1 second. I enabled the DNS server on OS-X Lion and it does indeed work. However when I query it using 'dig' (or nslookup) there is a delay of ...
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0answers
19 views

How can I send an email from within iCloud.com using a different email address? [duplicate]

I have my own private domain hosting solution with email, for example, test@test.com. When I am using the iCloud.com website from my browser, let's say for creating a spreadsheet, I will want to shed ...
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0answers
523 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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0answers
171 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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0answers
140 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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0answers
2k 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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1answer
852 views

DNS not resolving on my mac

I cannot connect to my company's intranet. Have Cisco Anyconnect. Email works fine. But intranet does not. When trying to ping, cannot resolve it. unknown host. when typing the ip address ping works. ...
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1answer
111 views

How can I block a given DNS from being used?

When I get a list of DNSs that OS X is using, it shows 3: Two from my ISP, and one is 192.168.1.1. Is it possible to prevent OS X from using the third one?
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1answer
2k views

2011 MacBook (10.6.8) connects to AirPort but intermittently won't connect to webpages

I have never experienced this problem before. I know that the problem is not the internet, because the internet works fine on all my other devices, both Windows and Mac. I brought my MacBook in to the ...