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

learn more… | top users | synonyms (1)

8
votes
1answer
6k views

How can I limit my download bandwidth?

Sometimes, I require a lot of bandwidth but do not want to disturb other's browsing experience. At the university I'm often connected to networks for multiple users which requires me to limit my ...
8
votes
3answers
5k views

network computers renamed after Yosemite install

Yosemite install (from Mavericks) has automatically changed the names of my network computers as shown in the Finder sidebar. For example, my name IMac now displays as my name iMac(2). My two ...
8
votes
3answers
6k views

Network stops working, with “Can't Assign Requested Address”

On OS X 10.9 (but no prior version), every now and then, I start getting strange network errors. I can still ping, but anything that requires actual content (like a web page) completely stops. For ...
8
votes
1answer
5k views

Is it possible to configure OS X to use the domain-name supplied by DHCP option 15?

I run a small home network, and have configured my DHCP server to provide a domain name with all responses. My MacBook Air (running 10.7.3) places the provided domain in the DNS search path, but does ...
8
votes
4answers
1k views

Wifi drops when screen is locked

I have a Mid 2010 MPB, running 10.7.1. Ever since I upgraded to Lion, I have noticed that wifi connections that require 802.1x authentication are dropping whenever I lock the screen. The connections ...
7
votes
6answers
26k views

What OS X signal strength test apps exist to measure Wi-Fi networking?

Is there a way I can get more details on the strength of my Wi-Fi signal? I'm looking for either an app I can download or a system command that I can run in terminal that will expose the noise of ...
7
votes
2answers
3k views

Turn Wifi Off via command line

I'm sharing my internet in work and forgot to turn it off! Does anyone know how I can do it via the command line? I have SSH access but thats it. D'oh.
7
votes
4answers
1k views

Can I use Dictation in OS X Mountain Lion offline?

There is a new feature in Mountain Lion, Dictation. When I try to enable it in the System Preferences, I get the following dialog: In other words, what Dictation does is just record your voice and ...
7
votes
1answer
11k views

Does iMessage work on both Wi-Fi and 3G?

Will iMessage work on 3G if the sender or receiver isn't connected to a wi-fi network?
7
votes
2answers
788 views

“Airplane Mode” in OS X. Alternative command for `rfkill`?

This question is an exact duplicate of this post from superuser.exchange.com. I believe this is a valid question for both of sites and hope I am not (if any) violating stackexchange policies. ...
7
votes
5answers
89k views

Share iPhone WIFI with computer over USB?

Due to a water leakage, we had to move offices temporarily. In our temp offices, we have WIFI network, but not cabled network (yet). Since my computer doesn't have WIFI (it's a stationary desktop) I ...
7
votes
4answers
3k views

How can I get the exact URLs/requests that a program is trying to connect to?

I currently use Little Snitch to control network traffic on my Macbook Pro, and see what my apps are connecting to. Unfortunately, Little Snitch only shows you the hostname that an app is connecting ...
7
votes
1answer
200k views

What, precisely, does “reset network settings” do on an iPhone?

I use "internet sharing" on my Mac, but lately I've been having trouble connecting my iPhone 5 to the resulting WiFi network. I've read advice online to do Settings -> General -> Reset -> ...
7
votes
4answers
11k views

How can I have my Mac mount a network drive when an application launches?

I outsourced the storage for my "iTunes Media", "iTunes Music" and "Mobile Applications" using symlinks onto a network drive. I didn't outsource the complete media library because of performance ...
7
votes
2answers
792 views

“Mount” network share as a volume via SSH?

There is a remote server that I can connect to only via SSH, and storage space have been allocated for me in that server. Is there a software that lets me "mount" a network share via SSH so that I ...
7
votes
5answers
8k views

How can I pair my Magic Trackpad with multiple Macs?

I have a Magic Trackpad that I'm using with my iMac. Everything works great, but I would also like to use the trackpad with my MacBook. For some reason, it seems that I can only pair the trackpad ...
7
votes
3answers
27k views

Since upgrading to OS X Mavericks, I can't open any files on a SMB share from my Windows 8.1 PC

I have a PC with Windows 8.1 and a Mac with Mavericks. I have a folder on the Mac that is shared with the PC. When I'm on the PC and I try to open a file that is shared by the Mac, such as an ISO file ...
7
votes
4answers
20k views

How to monitor network traffic on a router from a Mac?

A company has a High Speed internet connection (30 MB/s) which is enough for 10-15 computers. But for a week, there is almost no bandwidth "left", just checking email takes a long time or fails. ...
7
votes
3answers
191 views

Distinctive slowdown across browsers on 10.9.1

I've noticed a strange pattern of delays when trying to fetch websites; the behavior seems extremely distinctive, and is easy for me to reproduce so I'm fairly confident of most of the details below. ...
7
votes
4answers
714 views

iOS6 on iPod Touch (4) no Wi-FI LAN, when there is no Internet?

I got a question of one of my customers: They are experiencing problems when connecting a iPod to a WIFI LAN without Internet connection. Basically, the iPod connects, gets a IP from DHCP, but then ...
7
votes
1answer
3k views

System proxy settings inaccessible by Java, Firefox, VMware Fusion, etc.?

I'm stuck on what appears to be an issue with the accessibility of system proxy settings by other programs. I came across this problem while trying (and failing) to run Processing-generated Java ...
6
votes
3answers
2k views

How do I find out the MAC address of my iPad?

I have a new iPad and MAC address filtering on my home wifi network. How do I figure out the MAC address of my iPad?
6
votes
2answers
4k views

What is the preferred method of command line domain name lookup (DNS)?

What command line command do I use to lookup a domain address? When looking at the man pages for nslookup and dig I can see a section saying that these utilities do not use the Mac OS methods of ...
6
votes
1answer
351 views

Is it possible that some hacker is logged in to my computer?

When I type w at the terminal I see myself logged in two times. What are console and s000? Is it possible that one of these neos is actually somebody else?
6
votes
3answers
1k views

A utility for tuning your WiFi network?

Is there an app available to help tune Wi-Fi network settings? My local air space is starting to get congested and I want to make sure I'm using the optimal channel and settings on my router to avoid ...
6
votes
2answers
26k views

How to use WiFi and Ethernet at the same time

Brief Description: I need my Ethernet card (en0) to see all traffic under 192.168.2.xxx. However I also need to use WiFi card (en1) for all other traffic. OS: OS X Lion I am using a separate ...
6
votes
4answers
3k views

Disconnect from wifi network in Lion, while remembering the connection.

I would like to disconnect from my wifi network on OS X Lion. I do not want to forget the network nor turn wifi off. I just want to be able to connect and disconnect at will. - How do I do this?
6
votes
5answers
7k views

Equivalent of airodump-ng for Max OS X

Is there any equivalent of airodump-ng for Mac OS X (it only runs on linux), providing an overview of the current wireless traffic on nearby Access Points, i.e: number of captured data packets list ...
6
votes
3answers
7k views

Unexpected interfaces in ifconfig

In the middle of installing a tool called mrtg, I bailed out from a perl script to set various configuration parameters for use of snmp because it became clear that I had no idea what I was doing. I ...
6
votes
1answer
4k views

How to control AirPort wireless radio from the command line?

I want to know how to control (specifically turn off) the networking (specifically AirPort - I want to turn off the radio) from the command line (specifically from bash in Terminal.app, being run by ...
6
votes
5answers
4k views

How to fix gray files in Finder?

Is there any way to force Finder to refresh its in-use information for gray (inaccessible) files? Details: I move infrequently used files from my Mac (OS X 10.6) to a Windows Server 2008 file ...
6
votes
1answer
157 views

Automatically assign DNS

How do I ensure that the DNS is being set by the network? On Windows I would check here and make sure that Obtain DNS server address automatically was selected:
6
votes
5answers
925 views

What is a good Time Capsule substitute?

I am looking for something similar to Time Capsule, but I am really not interested in the wireless router capabilities. Can you suggest hardware which has the same good qualities (size, silent ...
6
votes
4answers
101 views

Figuring out what IP's and Ports a program is accessing

I play poker semi-professionally online and live. When I play online I have a hard time limiting the amount of time I play. There is a free application I found called self-control. It allows you to ...
6
votes
1answer
3k views

Unkown process listening at port 8080

The problem: something is listening on port 8080 If I load the page with Safari I get a blank page (page is white but "Develop → Show Page Source" is greyed out) If I telnet to port 8080 I get ...
6
votes
1answer
18k views

How can I turn off my Time Capsule's wireless router?

I have a useful wireless network, and then my Time Capsule's wireless network, which overpowers the other network when the computer is next to it. I don't know if it's misconfigured, but the Time ...
6
votes
3answers
3k views

Which ports does the Messages app for OS X use?

If someone has a list of the ports that Messages uses I would appreciate that answer here. Extra votes and thanks for providing a reference. I have searched the knowledgebase and found this, but it ...
6
votes
4answers
216 views

Recommendations for a good Bandwith Tracker on OS X

Is there a way I can track total bandwidth usage over the course of a month? My service provider requires me to stay within fairly strict limits.
6
votes
5answers
22k views

How do I unset an IP address set with ifconfig?

I recently used ifconfig en1 1.2.3.4 to set the IP address of a network interface (specifically, the wireless card) on a Mac… How can I remove/unset it? Using the graphical network configuration tool ...
6
votes
5answers
5k views

Why doesn't Airport reconnect after sleep or shutdown?

I have a MacBook Pro (2.4 GHz Core 2 Duo, running OS X 10.6.8) that does not reconnect to its stored WiFi network after it restarts or goes to sleep. To reconnect, I need to go into System Preferences ...
6
votes
5answers
1k views

Is there a way to use different network connections for different apps

At work we have a firewall that prevents certain outbound connections. But I also have a Clear wireless personal hotspot. I would like to use the work connection for normal requests but for certain ...
6
votes
6answers
7k views

Print from iPad without AirPrint or Wi-Fi

Consider the following configuration I have a Wi-Fi iPad without 3G support. I also have an HP printer that doesn't not have Wi-Fi capabilities. My printer supports USB. I am planning to buy a 3G ...
6
votes
1answer
7k views

Time Machine — ‘Sparsebundle already in use’ error

A few days ago, Time Machine on my Mac reported an error: ‘Sparsebundle already in use’. Manual unmount of the Time Capsule didn't help, nor a reboot of my machine. Removing and re-selecting my Time ...
6
votes
2answers
3k views

What are “nwnode:” URLs, and why did Lion break them?

After installing OS X 10.7, Dropbox presented the following error upon loading: "URLs with the type "nwnode:" are not supported". I also got this error from Path Finder (although I don't know what I ...
6
votes
1answer
4k views

Natively written packet sniffer / inspector for OS X

I am looking for a packet sniffer / inspector which runs natively on OS X (Cocoa) and not with some sort of compatibility layer like X. Ideally I am looking for an application with the following ...
6
votes
2answers
2k views

How can I get Snow Leopard to properly reconnect to my Windows network drives after it goes to sleep?

My mac goes to sleep. It wakes up. The volumes mounted to a Windows server in my house all work. I can see pictures and listen to music. Until I can't. After two or three sleep/wake cycles, I can't ...
6
votes
3answers
3k views

Internet Sharing handing out wrong DNS server address

I'm using a MacBook Pro with OS X Mavericks 10.9.2. It connects to the internet via a USB 3G dongle, and I want to share that internet connection via wifi. However, on devices that connect to the ...
6
votes
2answers
979 views

How should I use VPN on a Mac to prevent compromise before the VPN starts?

As most experienced users will have heard, using a Mac in a public untrusted Wi-Fi can be potentially harmful. A tool like Firesheep1 has made it very easy to intercept unencrypted communication. ...
6
votes
2answers
2k views

“Accept incoming network connections” issue

Due to some graphic and/or code based changes, within programs like Dropbox, iTunes, jDownloader etc. (but mostly Java-based applications), the built-in firewall keeps asking for verification. ...
6
votes
2answers
2k views

Per application VPN settings

I use a VPN tunnel to connect to a remote network on Snow Leopard. I set it up with the system settings for VPN and it works fine. Unfortunately, the VPN tunnel is used for all connections. Some ports ...