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Questions tagged [dns]

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

0
votes
1answer
23 views

Safari can't connect to localhost

I'm trying to use Focus, an app that redirects blocked websites through localhost. However, while this works properly with Chrome and Firefox, Safari gives me an error message as in the attached image....
0
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0answers
14 views

macos mojave -> “software update” -> “A server with the specified hostname could not be found”

How do I get rid of this message and in fact manage to update the machine? I can browse internal and external websites fine, name resolution works fine, a packet capture tcpdump -i en7 port 53 and ...
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0answers
31 views

How to prevent DNS caching on iOS

Does anyone know how to prevent DNS caching on iOS? My DNS cache keeps getting fouled up and it causes all sorts of issues that affect: Population of the bonjour pane in the VNC app Detection of ...
0
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0answers
24 views

macports telnet command to use for email server check

I just installed inetutils using macports under macOS Mojave, Then I tried to use gtelnet command, to check my email server, but I get an error relative to the DNS resolution, of this type : "Server ...
0
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0answers
7 views

Mix DNS from DHCP with a statically defined one

I'd like to configure my DNS records to priorities a statically defined DNS server (e.g. 8.8.8.8) and fallback onto DNS servers retrieved from DHCP. I'd like the DHCP DNS servers only to be used, if ...
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0answers
16 views

At one particular coffee shop, mac only connects to google and nothing else

I have a 2015 Macbook Pro running High Sierra. At one particular coffee shop, my mac only connects to google, facebook and youtube and no other websites. I looked at a bunch of forums and based on ...
2
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0answers
21 views

Cannot flush cache

No matter what I do, I cannot get a web site to load after something changes with the DNS. For instance, if meh.blah.example.com had a misconfigured DNS value and produced an ERR_NAME_NOT_RESOLVED ...
0
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0answers
96 views

Why is IMRemoteURLConnectionAgent contacting a Charter IP address

I never use iMessage. I never use iCloud. And yet I happened to check my Mac's current network connections and I found this: IMRemoteURLConn 33557 me 7u IPv4 ... 0t0 TCP 192.168.1.198:57996-&...
1
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1answer
39 views

Strange DNS entries on a macbook pro

I was trying to add an entry in /etc/hosts on a MacBook Pro 2018 (macOS 10.14.1) that has been installed transferring data from another MacBook Pro (2013 running macOS 10.13.6) when I found the ...
0
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1answer
37 views

Why is twitter unreachable from Chrome but not Safari?

I am using macOS 10.13.6. When I go to www.twitter.com in Google Chrome I get a This site can't be reached. https://www.twitter.com/ is unreachable. ERR_ADDRESS_UNREACHABLE On the same machine I can ...
1
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0answers
71 views

Can't access internet after installing NordVPN

As soon as I install the NordVPN app from the app Store on MacOS Mojave, the internet connection dies. I can't use my browser, or any internet connected apps. Deleting the app and then restarting ...
1
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0answers
89 views

Reduce or disable DNS cache in 10.13 and 10.14

I'm trying to get a hold of the property list, I'm guessing, that specifies the TTL or the amount of records held of the DNS cache of the system, if is not user/root accessible, then command that ...
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0answers
135 views

Slow Internet When Connected to L2TP/IPSec VPN

I set up the built-in racoon program on a Mac server to run a VPN server. It's an L2TP over IPSec VPN. I connect through it through the native client built into macOS's network settings. So I connect ...
0
votes
1answer
122 views

DNS lookup painfully slow on only one network?

I've got a MacBook Air 2013 running 10.14, and loading all pages either stalls for multiple seconds on "Resolving host" and only loads after a painful delay or it completely fails and Chrome shows me ...
0
votes
0answers
23 views

How is iOS to host communication done with TCP to USB?

I am looking for a good primer on information about accessing the data streamed from iOS devices to a host via USB. I've found this is done through TCP, I think. But concrete info is what I'm looking ...
6
votes
2answers
586 views

Force DNS resolution to happen outside VPN

I'm running Mojave (10.14) and I have a Cisco AnyConnect VPN over which traffic for selected routes (determined by the VPN profile, out of my control) is sent. Traffic routing works fine, the issue ...
3
votes
1answer
236 views

How to or Is that possible to stop mDNSResponder without disable System Integrity Protection?

I have tried the following: $ sudo killall -HUP mDNSResponder $ sudo killall -9 mDNSResponderHelper mDNSResponder $ sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSResponder....
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0answers
159 views

Alternate DNS resolution for Safari on macOS?

I use a Pihole on my network to provide local DNS service to block ads and various websites. I've noticed recently (maybe since Mojave) that Safari seems to bypass this. The Pihole device also ...
0
votes
1answer
421 views

Mac connects to iPhone hotspot but no internet

I'm trying to set up a hotspot, sharing the connection from an iPhone X running iOS 12.1 with a MacBook Pro running macOS Mojave. The hotspot is working fine and other devices can connect to it and ...
0
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0answers
28 views

How do I change the Resolver Order?

I use a utility call HELM to change my /etc/hosts file for a domain name to test if a site on a new server is working correctly before I point the DNS to it. However the way my resolver is working is ...
0
votes
1answer
41 views

Network settings won't save DNS servers

This has to be simple: I can't save DNS servers in Network>(Location)>Advanced>DNS I add the DNS servers 1.1.1.1 1.0.0.1 2606:4700:4700::1111 2606:4700:4700::1001 save, and then ...
-3
votes
1answer
150 views

Who is trying to use the Stealth Mode as reported in Console

I found following in my Console on MBA 10.13 Stealth Mode connection attempt to UDP 192.168.0.12:52734 from 8.8.8.8:53 Stealth Mode connection attempt to UDP 192.168.0.12:57880 from 8.8.8.8:53 ...
2
votes
1answer
454 views

My mac's hostname keeps getting reset to default

My mac's default hostname is Scott-Johnson.local. In the sharing system preferences, I set the hostname to felucia.local, which takes as expected. However, at some point in the future (usually due to ...
3
votes
0answers
331 views

Safari on iMac (Mojave) can't resolve http://<hostname>.local

Safari 12.0 on my 2017 iMac cannot resolve local computer names. In my particular case the computer is a RaspberryPi with a default web page. If I put "pi-star.local" in the Safari address box, I ...
2
votes
0answers
412 views

How to override DNS resolver ordering while connected to L2TP VPN

OS: macOS Mojave 10.14 (18A389) Current network setup: Local domain: home.rossipedia.com Subnet: 172.16.10.0/24 Gateway / DHCP server / DNS server: 172.16.10.1 Output of scutil --dns: DNS ...
0
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0answers
27 views

Website unresolved via OSX Safari

Issue URL does not resolve: see 'dig test results' Safari 11.1.2 System Version: OS X 10.11.6 (15G22010) Kernel Version: Darwin 15.6.0 Boot Volume: Macintosh HD Boot Mode: Normal The ...
1
vote
1answer
810 views

dnsmasq not working oh Mac OS High Sierra

I have a service running on localhost on MacOS High Sierra. curl foo.test does not work, but curl localhost does. To get to my setup, I installed dns using homebrew, brew install dnsmasq ...
1
vote
1answer
59 views

How can I reconfigure my PF.conf to be more secure

I want to make my computer more secure and a part of it I want to do with reconfiguring my PF firewall. How can I reconfigure my PF.conf to be more secure? I made a github repo where I posted my ...
1
vote
1answer
22 views

Website Doesn't redirect correctly

I have recently created a blog and hosted that on a freehosting website. domain is purchased from hostgater Website is hosted on freehosting. On hostgather nameserver has been updated as per ...
2
votes
1answer
31 views

OS X adds “incorrect” DNS servers “on top” of correct ones

OS X (latest version of High Sierra) is doing something strange when I try to connect to my campus wireless network. On a regular basis, it is adding an incorrect DNS server (10.0.0.255) "on top" of ...
4
votes
2answers
175 views

Unable to resolve hostnames inside macOS chroot jail

I just created a chroot jail with inetutils, coreutils and bash. Most of the things seem to work. I can ping ip addresses and hosts that are inside /etc/hosts, however, I can't ping hosts that are not ...
2
votes
1answer
103 views

Cannot ping a single website when I am logged into my account

I am having an issue connecting to my website. When I ping sample.com the server, I IP address I get is 192.168.0.12, but when I do an NSlookup, I get the correct IP. When I switch user account or go ...
2
votes
2answers
48 views

how to add ip routes with host name instead of ip address?

I want to add IP routes for host that I do not have the IP address for. I basically want tell macOS to search for a host in a specific interface: sudo route add -host <myHostname> -iface en7 ...
1
vote
0answers
43 views

Safari and Chrome loading the wrong website

My client is having an issue that is exclusive to her computer. When viewing her website on any other computer the website that shows is the current one being hosted by Squarespace. When viewing on ...
1
vote
0answers
172 views

How to create /dev/null in a jail-environment (chroot)?

In short: I am trying to install BIND9 on OSX inside a jail-environment (chroot) and failing to create a /dev/{null, random} file inside. Since Apple is slowly removing support for DNS, DHCP and more ...
0
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0answers
36 views

How do I reload the DNS config on macOS Server when I have edited it on the command line?

Server.app does not allow me to add a TXT record to the main domain (zone) but that is what is needed for SPF. So, I added a TXT record to my db.rna.nl file. (Note this is a split-DNS so on the ...
1
vote
1answer
86 views

iPhone 7 Sim Switching, Account Switching or just Normal Domain Traffic?

I think there is some funny business going on with one of the devices in my house. I'm not sure if the person is changing into between iCloud Accounts on the same device, or switching Sims or using ...
4
votes
1answer
1k views

How to change nameserver in resolv.conf in Recovery Mode?

How can I change the nameserver in /etc/resolv.conf while the MacBook is in recovery mode?
3
votes
3answers
904 views

How to use mac as a full router with DHCP, DNS, Port Fowarding etc.?

I know I can use internet sharing in macOS to share the internet connection provided to one network interface over one or more other network interfaces on my Mac. However, the feature set is VERY ...
0
votes
1answer
90 views

macOS not resolving IP Address

I used a certain domain name temporarily to build a site on. The site has been moved to its own URL and now I want to use the same domain again for another site. I have set up the WP installation but ...
5
votes
0answers
67 views

Terminal Displays My Roommate's Computer

I don't know how long ago this happened, but today I realized that when I open up terminal it no longer says Matthew-MacBook:~matthew$ as it used to. Instead, it appears to have synched up with my ...
4
votes
0answers
474 views

MacOS and split DNS

MacOS: 10.13.3 Pritunl VPN client: v1.0.1653.28 I have been following this: https://lists.apple.com/archives/macnetworkprog/2005/Sep/msg00047.html and http://hints.macworld.com/article.php?story=...
0
votes
1answer
47 views

Resolve internet address (IP) as running apps see them currently (vs. external name server)

Sometimes, I need to see the actual IPv4 address of web sites I open in Safari. Now, there are two terminal commands, host and dig, which I could use for that. But these commands are not always ...
0
votes
0answers
199 views

DNS Setup on a Per-SSID basis?

I manage a number of iOS devices. These devices are supervised via Apple Configurator. When they connect to a specific SSID, I want the devices to use the servers specified by DHCP (If needed, I can ...
0
votes
1answer
2k views

macOS High Sierra not trying other DNS servers

On one of my laptops which is running macOS High Sierra, is failing to resolve hostnames. I have specified two DNS servers in my network settings. One is an internal DNS server, and the other is 8.8.8....
5
votes
1answer
232 views

sharing internet/vpn with ipfw, can't access google.com over https

I am sharing my internet connection / IKEv2 VPN connection over pf via Murus static NAT. My network architecture is as follows: internet modem -> wired router (serving 192.168.1.1/24) -> Mac ...
0
votes
1answer
533 views

Force DNS server ip while connected to VPN

I'm using Fortclient VPN to connect to a customer network and the client enforces the use of their DNS (since the customer is in Turkey I get false DNS responses on wikipedia and other websites while ...
1
vote
2answers
481 views

DNS Suffix on two network Interfaces on MacBook Pro

I got a new MacBook Pro for my work office and have a network issue. On the MBP 13" I use the integrated Wi-Fi and an additional a Belkin USB Ethernet. Now, with those two network interfaces I ...
1
vote
1answer
508 views

High Sierra DNS fails intermittently for LAN-local hosts

I have a local domain for my home network, which uses .loc as a TLD (not .local). Name resolution for hosts on that network always works using dig or nslookup from a terminal, but intermittently fails ...
1
vote
1answer
58 views

Confusing reverse DNS IP replacement, ever since I edited /etc/hosts

A while ago I was trying to set up convenient ssh to a server, so I added an entry to /etc/hosts (not real IP): # Host Database 104.111.11.1 dokku.1 I've realized since then that using ~/.ssh/...