How to set up dnsmasq on Snow Leopard for local wildcard domains
I've set up dnsmasq on an ubuntu server on a small local network with several clients including some Windows and some OS X. Windows clients are working great. The OS X clients are having the classic "dig works but ping doesn't" problem. I can only find documentation that tells me it doesn't use the same facility as dig. I've suspected that it has something to do with the fact that dnsmasq doesn't provide SOA records, but I'm not sure. I've also experimented with bind9 instead, but I can't seem to get the configuration right on it.
If dig works without having to specify a particular nameserver, then both your server and Mac OS client are probably configured correctly. It's likely that your Mac has cached a negative DNS result. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 8 years ago. Active 5 years, 11 months ago.
Viewed times. Jonathan Swinney. Please note to anyone still having issues, you might have to remove any public DNS servers until cache is cleared. I had seemingly the same problem as the OP. Using the tool networksetup I found that for the given network name, some wrong DNS was configured:.
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Using scutil --dns I've got comparable results, listing that resolver 2 used nameserver : I was able to reconfigure the DNS for the given network and resolve names of local and global machines when connected to the VPN. Despite all that, DNS resolution in general e. This specific problem may be somewhat unlikely, but I'm going to document it here as an answer anyway. I only noticed when the machine started slowing down, but there were a lot of identical processes running.
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The -b flag to sensu-client makes it fork to the background, acting as a daemon. However, all launchd sees is that the original process terminated, so in accordance with the KeepAlive flag it restarts it. This leaves thousands of forked processes in the background, and even then launchd will be none the wiser to the fact that it is running. I believe that these several thousand processes all sensu-client , the software we had written a launchd config for may have been simultaneously making requests to mDNSResponder, effectively resulting in a local denial of service of the DNS cache.
Killing these processes and fixing the plist given to launchd eventually solved the problem. Note that this is not sensu's fault; this plist was written by a former system administrator at this company. The above command will send SIGINFO signal to the process which will dump debugging details into log output which can be read and analysed. Especially if you turn off wifi and then reboot. This probably won't help anybody, but in case, I accidentally some time ago, created a file in the folder, when a DNS was down for a particular domain:.
Unfortunately none of this helped me, and turned out after an hour of trying to figure it out and beating my head against the coffee table.. As it turns out, to solve the problem you have to configure a search domain and add it to the search domain field under System Preferences dns configuration.
Basically, the search domain will work sort of the way that. I've a similar problem with finding the host server. We have 21 iMacs running from the Server El Capitan, recently upgraded and only one won't bind. The fix is usually pretty simple through Users and Groups in SysPref.
Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution
Deleting the host server and re-binding, finding the available server in the dropdown option, but for some unknown reason the server is listed as unkown I ran this in terminal:. You need to turn it off.
There were several dns related processes running such as DNSdnscrypt-proxy. I couldn't force quit them in Activity Monitor but I was able to stop them from starting up on restart by removing the. Then click "Ok" followed by "Apply" on the next screen. Don't be fooled into thinking that the particular change you made was significant; it's the magic of the "Apply" button. Flushing, restart, nothing helped. Changing WiFi to a different Access point my phone helped.
Filling in this field seemed to make the wifi access point happy. Leaving it blank meant nothing was getting thru, even though the wifi connection seemed to succeed. Sign up to join this community.
Install dnsmasq on Mac OSX – Mac App Store
The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 7 years, 10 months ago. Active 1 month ago. Viewed k times. It doesn't work, see Google Chrome output: The server at www. Name: e This file is automatically generated. CajunLuke CajunLuke Happens for me on lion as well. Happening for me on Mavericks, This look like an historical problem which rotted the life of users and network admins from Leopard to Yosemite.
If someone still see this problem, please report clearly if you have more than one interface active and moreover getting its conf. I never saw such a problem on any other Unix and on none of my Macs I have a lot , but none of them has more than one interface talking toward a DNS info source. OS X But this isn't really a satisfactory answer. I need to know how to stop it from happening in the first place. This cache is necessary, and good, but it would be nice if there were better behavior when an entry is not found I consider this a bug.
In any case, there is some timeout in the cache; when I waited 10 minutes or so on my machine, this situation resolved itself. For the majority of users, the existing behavior is fine, so is not likely to be changed by Apple anytime soon. Of course this is not as good as it gets. No other OS has this problem.
There is nothing wrong with the DNS, the record for www. And that's a bug that needs fixing. Got this problem on In my case DNS was resolving for full names but not short ones. Matteo Maybe the file doesn't have to exist, or maybe the answer needs to be updated for Yosemite. Do you have this issue? Does running those commands fix it? You don't explain why these commands would help with this problem.
Do they even? Or this this meant as a comment to one of the other answers or something? One possible advantage of scutil is that it might work regardless of whether the computer has discoveryd or mDNSResponder. It dates from before their introduction. Since you've tried virtually anything that comes to my mind, I'd like to ask you: Can you ping the DNS you want to use?
Have you tried using 8. Can you ping those hosts? So to resolve www.
To perform the same query, you'd type: dig 8. In any case, let us know the exact outputs of these commands. Martin Marconcini Martin Marconcini See my edit to the question. Padding to make comment fit. CajunLuke i'm puzzled. I'm starting to suspect that Parallels or VMware may be causing some trouble. What type of network are these VMs using? Or if you want really short you can always do To do that: Build dnsmasq download the tgz and make or brew install dnsmasq Put this in a dnsmasq.
The output should look something like David Wolever David Wolever 1 1 gold badge 10 10 silver badges 19 19 bronze badges. I'd just like to point out that after 16 straight hours scouring the Internet, this is the only solution I've found that both lets me resolve internal company names AND allows for split networking to function properly. Thank you SO much for making this comment. I'd also point out that on OS X El Capitan, in order to script setting this up, I wrapped my openconnect command in a python script, along with commands such as networksetup -setdnsservers Add in your dnsmasq command and it's all set!
I finally have a stable VPN solution thanks to this comment. For future readers, I found it easiest to just ssh into my box at work, determine which IP's it had for name servers, and then hardcode those IP's into my resolv. That allows all non company names to resolve properly without having to go through company servers, which I find useful for privacy and speed.
As far as hardcoding goes, those IP's aren't going to change any time soon, and if they do, I won't be the only one affected and it should be trivial to edit two lines.