Linked Questions

1 vote
0 answers
291 views

DNS resolution temporarily failing [duplicate]

Macbook air mid-2012 w/ Mountain Lion. Whenever I wakeup from a long sleep and also on some random moments when it's on, i get DNS resolution failures for every server, with nslookup saying ;; ...
Raibaz's user avatar
  • 111
12 votes
7 answers
66k 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 ...
Dan Tao's user avatar
  • 221
12 votes
2 answers
13k views

How do I flush the DNS cache on a OS X 10.6 machine?

Trying to flush the local DNS cache. How is this done on Snow Leopard? Using System Preferences and using the terminal?
jdiaz's user avatar
  • 1,712
14 votes
3 answers
25k views

Cannot ping localhost: "unknown host" on Mac OS X El Captain

I am trying to resolve localhost which right now is "not found" if I ping localhost - I am getting ping: cannot resolve localhost: Unknown host I have made sure that the /etc/hosts file has the ...
Satya's user avatar
  • 281
10 votes
5 answers
88k views

The server returned the error: The server “imap.gmail.com” cannot be contacted on port 993

My Mac Mail has just started going on the fritz. I have a gmail account linked to mail and also a hotmail account. Both have warning signs and I cannot send or receive mail. They were both fine ...
Ash's user avatar
  • 101
6 votes
2 answers
9k 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 ...
user3019105's user avatar
3 votes
2 answers
5k views

DNS doesn't work properly in OS X Yosemite

There is a problem with resolving DNS in my OS X Yosemite. Safari doesn't load web sites, ping says "unknown host" to google.com. DNS servers set to 8.8.8.8 and 8.8.4.4. dig google.com Gets ...
Alexey Shatygin's user avatar
1 vote
4 answers
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 ...
Kent Bull's user avatar
  • 111
2 votes
0 answers
7k views

DHCP and DNS fail to work in Mac OS X 10.8.2, still work in recovery mode

I've been most unfortunate to see my mid-2012 Macbook Air 11" running Mac OS X 10.8.2 stop properly receiving DHCP leases AND resolving DNS names to IPs. I know, there is 10.8.5, and Mavericks that ...
ILIV's user avatar
  • 395
1 vote
1 answer
5k views

Only Chrome can access the Internet

Very curious problem - only Chrome can access the Internet, but literally everything else cannot. Confirmed this in Activity Monitor's Network tab (it shows 0 bytes sent/received for literally every ...
Geek at Heart's user avatar
4 votes
1 answer
3k 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. ...
Kenan Virtucio's user avatar
2 votes
4 answers
4k views

Mac cannot resolve DNS on WiFi, but works fine on cellular tethering

I have consulted the questions/answers here. But it seems nothing is working. I can ping 8.8.8.8, but I cannot ping www.google.com. nslookup www.google.com 8.8.8.8 and dig @8.8.8.8 www.google.com is ...
Chen Li Yong's user avatar
0 votes
2 answers
4k views

Losing internet connection 30 seconds after turning on the Mac

I am being connected to the Wi-Fi, but there's no internet connection, it stops working approx 30 seconds after I turn on my iMac. In Windows via Parallels on the same device, the connection is fine. ...
Mike G's user avatar
  • 1
3 votes
1 answer
392 views

DNS server priority in 14.1.2 Sonoma

I setup my DHCP server to assign three DNS servers: 10.0.1.3 - my own internal DNS server for hosting private A records for my home network 208.67.222.222 - Open DNS 208.67.220.220 - Open DNS My ...
Paul Wieland's user avatar
3 votes
0 answers
431 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 ...
George Katsanos's user avatar

15 30 50 per page