Yosemite no puede resolver los nombres de dominio

Así que sé que Apple eliminó mDNSResponder en Yosemite, pero parece que un montón de aplicaciones todavía están tratando de interactuar con él y fallando

Oct 20 10:57:00 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:03 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:03 Nicks-MacBook-Pro.local Spotify[604]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:88 Err:-1 Errno:61 Connection refused
Oct 20 10:57:04 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:06 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:07 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:09 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:10 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:12 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:13 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:15 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:16 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:18 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:19 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused
Oct 20 10:57:21 Nicks-MacBook-Pro.local ntpd[239]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:3 Err:-1 Errno:61 Connection refused
Oct 20 10:57:23 Nicks-MacBook-Pro.local configd[25]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:8 Err:-1 Errno:61 Connection refused

Chrome sigue funcionando bien (¿hay un resolver separado en Chrome?) pero Firefox no, puedo dig google.com y devolverá los resultados correctos.

He probado tanto con los servidores DNS de mi ISP como con 8.8.8.8 / 8.8.4.4 sin ninguna diferencia real.

Lo más extraño es que si reinicio tengo unos minutos de buen rendimiento antes de que esto vuelva a ocurrir.

¿Alguna idea?

Actualización

Evidentemente, si se descarga/carga discoveryd las cosas empiezan a funcionar (las instrucciones anteriores han sido descargar/cargar mDNSResponder ) al menos durante un tiempo:

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist

Esto es lo que tengo en mi consola después de cargar/descargar. Ni idea de lo que es relevante:

10/20/14 4:44:08.268 PM discoveryd[1333]: Basic Sockets GetProcessNameFromSocket() failed errno[57] err[-1]
10/20/14 4:44:08.268 PM discoveryd[1333]: Basic Sockets Unknown(-1), errno 0 UDS FD=3
10/20/14 4:44:08.268 PM discoveryd[1333]: Basic Sockets UDS FD=3 ERROR: failed to get effective user ID, errno 0
10/20/14 4:44:08.268 PM discoveryd[1333]: Basic SleepProxy BSP Server Disabled. Metric = 3373
10/20/14 4:44:08.272 PM discoveryd[1333]: AwdlD2d AwdlD2dInitialize: Initialized
10/20/14 4:44:08.273 PM discoveryd[1333]: D2D_IPC: Loaded
10/20/14 4:44:08.273 PM airportd[29]: _resetD2DConnection: Connection re-established to mDNSResponder D2D server
10/20/14 4:44:08.275 PM discoveryd_helper[254]: Detailed RemoteControl com.apple.discoveryd_helper XPC connection 0x7fa853800680: start (pid=1333, <unknown> not root)
10/20/14 4:44:08.277 PM configd[25]: network changed.
10/20/14 4:44:08.282 PM discoveryd[1333]: Basic RemoteControl com.apple.discoveryd Starting XPC Server
10/20/14 4:44:08.282 PM discoveryd[1333]: Basic DNSResolver etc/hosts file changed: Event 0x7ffab6b005e0 Flushed /etc/hosts cache
10/20/14 4:44:08.283 PM discoveryd[1333]: Basic RemoteControl com.apple.discoveryd.dnsproxy Starting XPC Server
10/20/14 4:44:08.283 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: 'nicks-macbook-pro' Advertising service started
10/20/14 4:44:08.283 PM discoveryd[1333]: Basic SleepProxy Sleep Proxy Server is not enabled
10/20/14 4:44:08.284 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: 'nicks-macbook-pro' Advertising service started
10/20/14 4:44:08.285 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: '483e5cefffa5108400000000000008efip6arpa' Advertising service started
10/20/14 4:44:08.286 PM discoveryd[1333]: AwdlD2d AwdlD2dStopAdvertisingPair: 'nicks-macbook-pro' Advertising service stopped
10/20/14 4:44:08.286 PM discoveryd[1333]: AwdlD2d AwdlD2dStopAdvertisingPair: 'nicks-macbook-pro' Advertising service stopped
10/20/14 4:44:08.287 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: 'nicks-macbook-pro' Advertising service started
10/20/14 4:44:08.287 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: 'nicks-macbook-pro' Advertising service started
10/20/14 4:44:08.288 PM discoveryd[1333]: AwdlD2d AwdlD2dStopAdvertisingPair: '483e5cefffa5108400000000000008efip6arpa' Advertising service stopped
10/20/14 4:44:08.289 PM discoveryd[1333]: AwdlD2d AwdlD2dStartAdvertisingPair: '483e5cefffa5108400000000000008efip6arpa' Advertising service started

Sin embargo, todavía tengo que descargar/cargar de vez en cuando para seguir adelante. ¿Qué podría estar causando esto?