Questions about configuring, troubleshooting or using connections that one device uses to talk to another.

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43 views

How can I list the IP addresses of all the AirPrint printers on a network?

I am trying to make a list of all AirPrint printers on the network at a school. We have many of them because of all the classroom and office printers, but they have not been set up with meaningful ...
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1answer
49 views

How to list Network Interface UUIDS?

I'm trying really hard to find a simple way to fetch all network UUIDS on my Mac to be able to do some plist magic. Is there a command to do such a thing? If I look in the plist I'll find for an ...
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1answer
41 views

ss (netstat alternative) for OS X

How do I install ss on OS X? I couldn't find the iproute package in homebrew. Red Hat recommends ss over netstat in Red Hat Enterprise Linux 7. ss is provided by the iproute package. Red Hat ...
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50 views

Modem + Switch + Airport Time Capsule

We are using the following structure in our network: modem (DHCP server) -> switch -> access point We bought Airport Time Capsule. We changed our access point with time capsule, but time capsule not ...
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1answer
27 views

Caching Server OS X Port

When you run sudo fullstatus caching, it lists all the relevant data for how the caching works on the server. There is one particular line that shows what port the caching server is using. Does this ...
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35 views

Sort out Apple hosts

I have a question about Apple network traffic. In my network program I can see these three domains (GET) http://init-01md.apple.com/bag http://init.ess.apple.com/WebObjects/VCInit.woa/wa/getBag?ix=1 ...
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43 views

Keychain doesn't remember password for network drives

I have an MBP with Yosemite connected to my home network, and I want to automatically mount three hard drives located on a Windows 8 computer also connected to the network. When I connect using ...
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1answer
73 views

Port forwarding Yosemite

I have a server running on my imac (port 8000) and I want my ipad to be able to visit it through the local network so I set this rule using pf anchors (hence ipfw is gone).. It doesn't work, what am ...
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9 views

Use certain network connection for some ports

My Mac (OSX 10.10.2) is connected to the Internet via Ethernet. The problem is, this connection is blocking some ports. (http://www.URL.com:2080) I tried to open the page on my smartphone and it ...
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93 views

Mac OS X Yosemite connectivity issue

Every so often my MacBook Pro starts getting very intermittent network connectivity. I have a Virgin Media SuperHub. Pinging my router gives me lots of request timeouts: 64 bytes from 192.168.0.1: ...
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1answer
47 views

Mac OS X Mavericks DNS name lookup order change?

I noticed Mavericks prefers the DNS server to /etc/hosts (scutil --dns). There used to be a good 'ol "order hosts,bind". Is there anything equivalent for Mavericks so my hosts file is consulted before ...
2
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1answer
26 views

How do I force OSX to use IGMP version 2?

I am connected to an old NETGEAR smart-switch which only supports IGMPv2. It doesnt route multicast traffic to my mac because it joins the group using IGMPv3. I tried this: sysctl ...
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117 views

Cannot connect to SSH server from Mac OSX

Whenever I try to connect to a remote server using SSH, I get an error "ssh: connect to host x.x.x.x port 22: Connection refused" I didn't install a Firewall or something similar. I know for sure the ...
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75 views

Cannot install network profile on Yosemite

I'm having trouble connecting to the "Eduroam" network at my University. Some time ago the Airport connector on my motherboard decided it was time to melt down, so I'm forced to use an USB WiFi ...
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1answer
36 views

What this ifconfig output telling me?

What is this output of ifconfig telling me? Any explanation of the first in particular would be sweet. A:~ Linda$ ifconfig lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 ...
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77 views

Troubleshooting Cisco Anyconnect routing table changes on 10.10.2

I'm using Cisco any connect 3.1.05160, and it fails repeatedly with "The VPN client was unable to successfully verify the IP forwarding table modifications. A VPN connection will not be established." ...
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21 views

Cable modem compatible with Back to my Mac?

Currently I have Comcast business internet with fixed IPs, but it turns out that the only that I use the fixed IPs is to log into my computers at home using afp:// and vnc:// while traveling. I would ...
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1answer
47 views

Why does Yosemite Safari never time out trying to go to *.local?

On the version of the Safari web browser that's included with Mac OS Yosemite, trying to go to any web site whose hostname ends in ".local" will cause the browser to sit there forever waiting for a ...
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46 views

How is the hidden interface bridge100 working?

This interface bridge100 has been introduced with Mavericks and exists on Yosemite. (On Mountain Lion the same kind of mechanism was taking place with the bridge0). This interface is related to the ...
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0answers
17 views

Can't VNC from phone to tethered computer

Scenario: Computer tethered to iPhone via Wifi, VNC server running on computer. VNC viewer (in this case iTeleport) running on phone. This is a carputer that uses my phone for internet connectivity ...
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43 views

How can I create a local network on OS X Yosemite compatible with Android Nexus 5 / 7?

How can I create a Wi-Fi network on my Mac with OS X Yosemite that my Android device can connect to (Nexus 5/7)? The Android device does not see the network if I use Internet Sharing.
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25 views

How to debug hangs in multiple subsystems (typically audio and networking)?

I can give system logs for anything, just let me know. Hardware: Mid 2014 rMBP OS: 10.10.2 “Special” things installed: Bartender Multiple VPN providers Multiple chat/voice providers (plugins for ...
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1answer
762 views

Can I set a Timecapsule to connect to a wireless network, and hook up more network equipment to it with cables?

Currently I have an older style Timecapsule 2GB, the flat type, connect to my cable modem, and distributing network to my apartment both through cables (Xbox, PS4, Apple TV) and WIFI (everything ...
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0answers
52 views

How do I really (dig) flush the DNS cache on OS X 10.9?

I'm on OS X 10.9, according to support.apple.com I can flush the cache with sudo killall -HUP mDNSResponder Unfortunately this does not really refresh my DNS cache at all, also not like this: ...
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100 views

Does iOS Personal Hotspot have a firewall? Port 5353 not working

I have an iPhone 5 with iOS 8 installed. I've connected two devices to the Personal Hotspot, my Macbook Air and an Arduino Yun. Both can connect to the internet through the hotspot fine. I can also ...
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63 views

Using Time Capsule as a Wi-Fi extender

I recently bought a 3 TB Time Capsule primarily to back up my Macs, but I presumed that it would extend my Wi-Fi network as well to another floor of my house. As it turns out this is quite ...
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2answers
41 views

How do I prevent my mac's wifi from ever (not just once) seeing a particular wifi network?

So here is my dilemma- I'm addicted to the internet and I don't want to have the option of using it in my home except for particular times. On my own network, I plan to change the password to ...
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2answers
34 views

Making music and photos available to Apple TV

I have a double story house with the modem upstairs and an Apple TV downstairs. I also have a USB hard drive with an iTunes library and iPhoto library on it. At the moment every time I want to use the ...
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0answers
182 views

Macbook wifi networks disconnect and disappear after sleep in Yosemite

I have a Macbook Pro (Mid 2010 model) and ever since I upgraded to Yosemite I noticed my wifi networks disconnecting and disappearing after the computer wakes from sleep. I try to turn wifi on/off and ...
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57 views

How to permanently fix a periodic, frequent loss of network connectivity under iOS 8.1.x on iPhone?

Ever since upgrading my iPhone 5S from iOS 7 to iOS 8, I experience frequently (usually once a day) a complete loss of internet connectivity, both via Wifi and LTE (T-Mobile). The only workaround is ...
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2answers
342 views

Wi-Fi fails to connect after OS X 10.10.2 Update

I have a Mac Pro 4,1 that was just upgraded to OS X 10.10.2 (14C109). I've used an ASUS PCE-AC68 wireless adaptor since Mavericks, and haven't had any problems before now. I understand that this ...
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1answer
115 views

Installing Network Link Conditioner for All Users (Yosemite)

I'm currently deploying "Network Link Conditioner" out to my web team. It's the latest version from the Apple Developer Website (October 16, 2014 from Hardware IO Tools) and I'm installing it on 10.10 ...
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1answer
54 views

Why do symlinks sometimes vanish in Xcode?

The source files of interest are on a network share hosted on a Win7 machine, but the symlinks are created on this Mac using ln -sf These are .h files, and sometimes one or more of them are not found ...
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1answer
38 views

PF Port forwarding not working

I have the following rule in a file in /etc/pf.anchors/ rdr pass on lo0 inet proto {udp,tcp} from any to self port 25 -> 127.0.0.1 port 1025 The intention is to forward all local traffic to port ...
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1answer
227 views

Screen sharing stopped working after 10.10.2 update

Screen sharing between my iMac and my Mac Mini stopped working after I applied the 10.10.2 update. I'm trying to access the Mac Mini from the iMac. I get the standard error message advising that I ...
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1answer
604 views

What is causing slow Wi-Fi speeds on my Airport Extreme?

I have a recent model (bought 1-2 years ago) Airport Extreme that, until yesterday, has worked flawlessly. Starting yesterday, my wireless speeds have tanked. I first suspected my ISP, but that ...
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1answer
27 views

Very sporadic Wi-Fi Issue with Lion (Connection Timeout)

I have tried many a thing to solve this matter. Long and short of it is I am getting the standard "connection timeout error" but only on some networks (which are successfully connected to by other ...
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1answer
69 views

How to get the wi-fi connection status from terminal?

Sometimes, when waking up my mac, I get the message "Alert: No internet connection" on the Wi-Fi icon. I can solve it everytime by turning Wi-Fi off and on again. Is there a terminal command I can use ...
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0answers
95 views

Apple TV 3 drops ethernet connection on 2 seconds

I have a problem with ethernet connection on my ATV3. It started about one month ago. ATV randomly drops ethernet connection for a two seconds. Here is the screenshot from my router: I'm already ...
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0answers
32 views

Transparently forwarding across private IP network boundaries

I have an OpenVPN vpn on OS X Yosemite which creates a utun0 device with an address on the 10.0.0.0/8 private network. I map our internal service hostnames to addresses on this network in /etc/hosts. ...
1
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1answer
128 views

iOS network connectivity on a local, isolated network with no DNS server

I have a problem with configuring my iPad to work on a local, isolated Wi-Fi network that does not have a DNS server on it. The problem is in how to convince the iPad that it is actually connected to ...
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0answers
31 views

My Macbook Pro cannot see my Macbook when using Wifi

I have a 2009 I-Mac that is hooked to the Ethernet. When I hook my 2012 Macbook Pro to an ethernet cable I can see the I-mac. However when the macbook pro is using wireless (no ethernet) it cannot see ...
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0answers
7 views

Cannot Access Q1000 Modem

My Mac Pro running Lion cannot access our CenturyLink (Qwest) Actiontec Q1000 modem/router: any attempt to do so using 192.168.0.1 just dies. However, an iMac running Snow Leopard readily accesses the ...
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0answers
77 views

Can I fix DNS issues on MBP for good?

I noticed DNS issue on my MBP where all of sudden (in the middle of my work, nothing changed) my DNS simply stops working. It's easy to notice that, so I do the following: first I check if DNS is ...
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1answer
24 views

Internet not working well on MBA, after switching network?

Let's say that I turned on my MBAir at home; wifi networking works. Then I close the lid (MBA goes to sleep) and go to different place with different wifi network. When I change the wifi network (eq ...
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1answer
88 views

AddPrinter.app hangs on Yosemite

I want to add a network printer on my MBP13R mid-2013. I open the dialog box Add printer (Addprinter.app). I begin to fill the form for IP adress of my printer (by typing the hostname). I only type a ...
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0answers
34 views

How to stop “Join [network name]” pop ups for proxy wifi

Using OS 10.10.1 I'm connecting to a wifi network that has most of the internet blocked. The problem is, every 10 minutes or so a pop-up window will appear saying "Join [network name]", but the ...
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0answers
40 views

Music app that integrates well with Synology NAS

I'm looking for music software that will work well integrating with a large (~1TB) music collection on a Synology device. Requirements: Fast searching Fast connection adapts happily to NAS being ...
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2answers
172 views

Questionable Wi-Fi problem on MBP: how to analyse it?

I can't all of the sudden turn on WiFi on my MBP. I have upgraded to Yosemite half a year ago and it was all working fine until today. I tried some tips from this thread Can't turn on wifi on Mac ...
2
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0answers
27 views

Traceroute Terminal vs Network Utility different?

Why would a Terminal traceroute #.#.#.# show different results than using Network Utility.app? Here is the first 3 hops. I am connected to PIA VPN but regardless both methods should show the same ...