Questions about configuring, troubleshooting or using connections that one device uses to talk to another.
32
votes
7answers
11k views
How to simulate slow internet connections on the mac
What's a good software solution to slow down internet connections on the mac for testing and simulations?
My primary need is when testing code in the iPhone / iOS simulator, so slowing down the ...
18
votes
12answers
59k views
How can I save Google Maps in iOS for offline use?
Is there a way to retain a map with as much detail as possible (street view, maps, directions, zoom levels) offline?
This question refers to the Apple maps program that shipped with iOS versions 1 ...
18
votes
6answers
3k views
How do I prevent document preview over slow connections?
Once in a while I have to work over a 3G network, which is reasonable, until I mount a file system on the other side of the world.
When that happens OSX tries to show me "previews" of every single ...
16
votes
3answers
624 views
Can anyone suggest strategies for coping with a 200MB/day Internet quota?
I have a satellite Internet connection (because I have no other choice, that's why :-) which has a quota of 200 MB per day (that is not a typo).
As you can imagine, we can very easily go through that ...
16
votes
10answers
5k views
Why is the menu bar showing the VPN “Disconnecting” animation forever?
You know how when you disconnect from a VPN, you get a little scrolling "Disconnecting..." notification in the upper right notification area?
Well, I'm getting that, but it never goes away. It's ...
15
votes
8answers
19k views
DNS not resolving on Mac OS
Some of my coworkers are having troubles on their Macs - DNS resolution does not work under Mac OS. They're running Snow Leopard 10.6.8. They can use DNS in a Windows 7 virtual machine (VMware Fusion ...
13
votes
5answers
19k views
How do I troubleshoot my Wi-Fi connection when an exclamation mark appears?
Sometimes, when I am in a public Wi-Fi an exclamation mark appears in the greyed out Wi-Fi icon.
I can connect to the Wi-Fi (I get assigned an IP address), but I cannot establish an internet ...
11
votes
6answers
2k views
Why doesn't AirDrop work on older network adapters?
Apple has stated that AirDrop will support only the following models:
AirDrop supports the following Mac models:
MacBook Pro (Late 2008 or newer)
MacBook Air (Late 2010 or newer)
...
11
votes
3answers
4k views
Why does my Mac Pro have two ethernet ports on the back of the computer?
I'm curious as to how or why I might want to take advantage of two ethernet ports on the back of the tower?
11
votes
7answers
23k views
How do I connect to a SOCKS Proxy from an iPhone/iPod Touch?
I like to surf securely and privately via a SOCKS proxy which I created via SSH tunneling, on the Mac. I used the SSH client on my Mac to achieve this. Then I thought, since the iPhone OS is ...
10
votes
3answers
3k views
How can I “say” to another Mac?
I have two Macs in our house (iMac and MacBook Pro).
I would like to use the say command-line utility to type something on my MPB and have it speak on the iMac, rather like an intercom system.
Plus, ...
10
votes
6answers
3k views
Start/stop internet sharing from a script?
Is there a way to start/stop internet sharing from the command line or maybe an apple script?
The thing is that I move around my laptop between home and work. At one place I get wireless internet ...
10
votes
5answers
1k views
To let a Mac automatically use Wifi and Ethernet to double the connection speed?
I am staying at a hotel, and for some reason, I think they limit each Wifi connection to 95 kbyte / s. So that is roughly 1.2 Mbps... and since I have 18 Mbps at home, I am using a speed that is less ...
10
votes
4answers
2k views
Can you prevent the iPhone browser from reloading pages?
I commute using the subway so this means 20 minute stretches of no internet.
To give me something to do, I often open a bunch of web pages, say 3 or 4 before I'm offline so I can read them while I'm ...
10
votes
4answers
7k views
bandwidth shaper or bandwidth controller App for Mac OS X
I'm looking for a bandwidth/packet throttle/shaper program with the following features:
Similar to Windows-based Netlimiter.
GUI based and not terminal or command line.
Shows list of all ...
10
votes
2answers
312 views
In OS X is it possible to specify which network connection an app uses?
My ethernet connects to the LAN, my airport connects to a different network (it's another mac sharing a VPN connection). I want all apps except the iPhone Simulator to connect via the LAN.
Is this ...
9
votes
2answers
2k views
Reasons to prefer Little Snitch over the built-in firewall
Every now and then I browse through software you must have on your mac type lists and more often than not somebody mentions Little Snitch as a must-have application.
Now what I think that many people ...
9
votes
5answers
6k views
Differentiating Apple products by their MAC addresses
Apple has registered a ton of MAC address ranges for its products. Does anyone know whether it's feasible to reliably identify which Apple product (particularly iPad, iPod, iPhone, and MacBooks) a ...
9
votes
3answers
453 views
Can the built-in OS X “Location” feature auto select locations based on wireless networks?
My home network is very secure, but my school's wireless network is open, which makes it vulnerable to wireless sniffing (e.g. with Firesheep). I just discovered the Location feature and I think it's ...
8
votes
4answers
2k views
Remotely SSH to IP address in home network
I've got a device at home I want to SSH to from work. The device has port 22 open locally and I have port 22 opened on my AirPort Extreme. However, on the AirPort Extreme it says the open 22 port only ...
7
votes
1answer
8k 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
1k 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
8k views
How to make Time Machine backups over network without OS X server?
At our institute, we have several Macs (from 10.6 to 10.8) but not one is running a server version. In the one running 10.8 there are 4.5 TB of hard-drives from which 2 x 2 TB are raided together ...
7
votes
3answers
14k views
What's a good iPhone app that will let me view files on my network?
I'm looking for an app which provides functionality similar to Apple Finder's "SHARED" feature, or Microsoft Windows Explorer's Network Neighborhood. Basically, I should be able to use my iPhone to ...
7
votes
4answers
5k 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
467 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
1answer
2k views
Internet stops working frequently on OS X Lion
After upgrading to Lion, I started experiencing this issue:
Internet stops working frequently.
- I open Safari and browse for some time
- Suddenly I can't open any sites; Internet will stop ...
7
votes
2answers
1k views
How to ensure that all traffic goes through VPN connection once it has been started?
I connect to the internet through a VPN provider along with other precautions in order to ensure privacy (against traffic analysis by agencies of a repressive government). I currently use Tunnelblick ...
7
votes
1answer
1k 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 ...
7
votes
2answers
223 views
IO6 on iPod Touch (4) no WIFI 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 ...
6
votes
1answer
298 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
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 ...
6
votes
5answers
833 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
5answers
993 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
6answers
1k views
getting “out of memory” error when trying to load specific websites (am not out of RAM)
I'm having a problem where my computer (Macbook Pro, 8GB RAM, OS 10.8) will not to attempt to load certain websites. Nothing fixes it except for rebooting. This occurs when nothing else is obviously ...
6
votes
3answers
2k views
ethtool Equivalent for OS X Lion
Other than ifconfig, is there an app/script for OS X Lion that produces similar output/info to ethtool?
Specifically, I would like to be able to query the following:
driver info
online/offline
...
6
votes
5answers
3k 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
3answers
6k views
How to automatically login to captive portals on OS X?
How can I automatically login to captive portals on OS X?
A captive portal is used by (often not password-protected) wireless networks that present a web page as soon as you connect to them, ...
6
votes
1answer
2k 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
1k 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
2answers
5k views
What does the dynamic global hostname option in sharing settings do?
Can anyone explain what this option does?
6
votes
2answers
756 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 ...
6
votes
1answer
2k 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 ...
5
votes
4answers
5k views
How to find IP address of my other Mac?
I have two Macs on the same network, both plugged into my internet router. I have screen-sharing set up on one of them, so I can connect to it using command-K in the Finder with a vnc:// URL, and ...
5
votes
4answers
245 views
How can I tell which application is using the network?
Very occasionally when using my Mac, I notice my internet connection slowing down. Using Activity Monitor I can see that it's because something is downloading data at the full rate my connection can ...
5
votes
5answers
537 views
Is there any network monitor software with a notification area icon?
I often use my laptop in the subway / office buildings where internet connection may be laggy / absent for some period of time. Is there any network monitorying software that can constantly monitor my ...
5
votes
2answers
311 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.
...
5
votes
4answers
730 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 ...
5
votes
4answers
4k views
How can I quickly change DNS server
I often like to use a non-network specific DNS server (like Google's public DNS 8.8.8.8). However, many public wi-fi locations won't load their "terms of service, click here" page during the ...
5
votes
2answers
935 views
Is there a fast way to change proxy setting?
On my laptop I usually have a ssh connection open and use the remote machine as a proxy server just so that all my network traffic is over ssh. I know that it's hopeless and we're all doomed, but it ...
