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

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6
votes
1answer
2k views

Mac renames itself automatically

I've got a handleful of macs (all with unique names) and on occasion it prompt a notice about saying another computer on the network as this name and adds a (2) or (3) to my mac. There are no other ...
6
votes
3answers
39k views

Share internet connection from a PC to an iPhone through the USB cable

In the office where I'm working now, my network carrier has very poor reception, so my iPhone 4 cannot access the internet reliably. I have a pc running Windows XP SP3 that is connected to internet ...
5
votes
3answers
379 views

Open ports. Safe?

My friend is currently running the default firewall with "Block all incoming connection" (except the basic ones like 80). I just scanned his mac for open ports and I found the following: Open TCP ...
5
votes
3answers
3k views

Does OS X have a builtin DHCPv6 client?

Upon testing a within a standalone network with just a DHCPv6 server on it and several client computers with different operating systems, OS X 10.7.4 fails to automatically obtain an IPv6 address from ...
5
votes
5answers
735 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
2k 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 ...
5
votes
4answers
4k views

Gray file 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 ...
5
votes
3answers
3k views

Internet Sharing stuck on after 10.7.3 update

I use Internet Sharing at work to create a local WiFi network (sharing the GigE connection) for my various iOS and tablet devices to connect through. After the 10.7.3 update, I cannot turn sharing off ...
5
votes
3answers
380 views

Is it possible for two users to remotely log in to a Mac simultaneously?

Can two users share a Mac remotely? What software would be used? I'm wondering if this is a viable idea for two developers to share a Mac for app development.
5
votes
3answers
2k views

Ping on Mavericks on late 2013 MacBook Pro slow and variable compared to Windows

I had a couple of issues connecting to an SMB share last night so started using ping to test connectivity. At that point I noticed the ping was very slow and variable - my Windows laptop shows ...
5
votes
6answers
4k views

Why is Safari ignoring my /etc/hosts file?

I added some domains to block (127.0.0.1 mydomain.com) to my /etc/hosts file and for some reason, Safari seems to be ignoring them. I have tried disabling Safari extensions, clearing the cache (sudo ...
5
votes
2answers
262 views

How to resolve dropping wifi issue since Yosemite upgrade?

As of today I experience random wifi connection drops on my MacBook Air 2012 that force me to reselect the network every ten minutes. The only recent change to the system was an upgrade to Yosemite. A ...
5
votes
1answer
455 views

iChat sends out connections to an IP address when configuring camera and mic settings

Using LittleSnitch I noticed that Messages (iChat) tries to connect to 17.154.239.222 over udp when I open the audio and video preferences for the application. Apple owns that IP address but does ...
5
votes
5answers
72k views

Will an Airport Express extend the Wi-Fi of another-non Apple Access Point?

My colleague has a cheap Cisco Access Point on another floor. The wireless is very spotty. He is using a Mac Pro. Will an Airport Express work to extend this network?
5
votes
4answers
210 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.
5
votes
2answers
2k views

How can I use Wireshark on a MacBook Air?

I have a new MacBook Air. I would like to run Wireshark on it. But when I choose capture in Wireshark there is no interfaces to capture from. Doesn't Wireshark have support for the MacBook Air WiFi ...
5
votes
1answer
184 views

What is the fastest connection between two MacBooks

What is the fastest way to connect two MacBooks? In my case I want to connect an MacBook Air (2011) with a Retina MacBookPro and use Screen Sharing. Options I'm thinking of: Thunderbolt/Ethernet ...
5
votes
4answers
6k views

Apple TV works with my iPhone but not with my PC on the same wireless network

I have: Windows 7 PC with latest version of iTunes connected to my network (wired). Windows Firewall is turned off. Apple TV (2nd generation) connected to my network (wireless) iPhone connected to ...
5
votes
2answers
2k views

Use a network Time Machine drive locally

I typically backup over a network to a networked hard drive on another machine. For some unknown reason, backups tend to get incredibly slow over the network (the first few backups work fine and ...
5
votes
1answer
2k views

Internet sharing without DHCP

I'm trying to setup my iMac running 10.6 to be a wireless bridge. I have it working, but I need to disable DHCP and let my network's DHCP server provide an IP for the connected device(s). I can't seem ...
5
votes
1answer
2k views

How does Back To My Mac work without UPnP or NAT-PMP?

Back To My Mac (BTMM) used to require UPnP or NAT-PMP on your router to work, but at some point this changed and it can work (albeit slowly) without those. BTMM (usually?) works by setting up an ...
5
votes
4answers
5k views

Trouble browsing Windows network printers from Mac

In the "Add Printer" dialog Windows section, there are no printers showing up, even though there are several in the office. I think this might be because my Mac is not "logged onto" the Windows ...
5
votes
2answers
9k views

AirPort Express and Extreme Wi-Fi strength comparison

I'm about to buy an AirPort model but I'm not sure if there is any difference in terms of signal strength and range. There have been comparisons between these two models in the past but I don't think ...
5
votes
1answer
2k views

How can I force Mac OS X 10.9 to see the ethernet port of my hub (Asix AX88179)?

I already downloaded (and installed !) the latest file from ASIX.com, which is the latest to this day, but System Information does not list the port as being available when I connect the USB 3 Hub ...
5
votes
3answers
3k views

Time Capsule Interface List

Per my other question on monitoring network throughput, I now have a series of graphs, some of which are distinctly non-obvious as to what they are. Is there documentation on what every interface on ...
5
votes
2answers
4k views

Permanently mapping a network drive on MacBook Pro?

THE QUESTIONS: How can I make my MacBook Pro automatically mount a network share when it wakes up? How can I make sure that when it is mounted it is mapped to the same path (/Volumes...) MY SETUP: ...
5
votes
1answer
3k views

How to get an iPad to switch automatically to the strongest network?

I work in an office that has 3 WiFi networks, the strength obviously depending on where you are in the building. All 3 networks have been set up on my iPad 3. I often move around in the office, but ...
5
votes
2answers
2k views

Network Link Conditioner not working

I am a web developer and I recently found out about Network Link Conditioner, but I can't get it to work. It appears to be working, but when I load anything in a browser, the speed is not changed, ...
5
votes
1answer
905 views

Is there a OS X equivalent for iproute2?

I am searching a command line tool collection like iproute2 on Linux. Network Utility is OK, but I would like it on the command line.
5
votes
2answers
3k views

Thunderbolt Displays' ethernet adapter breaks MacBook DHCP/MAC Address reservations

We have deployed Thunderbolt Displays in my organization, which is almost entirely Mac-based. As you may already know, Thunderbolt Displays have internal Ethernet adapters which is very convenient in ...
5
votes
4answers
6k views

A Mac OS X VPN client that can import a .VPN file

I have a .vpn file that I use on Windows with the Shrew Soft VPN Client that has the connection details (excluding the username and password). Is there an equivalent client for Mac OS X that will ...
5
votes
3answers
6k views

How to fix very slow server performance on OS X Lion?

I have a 2008 Mac Pro (MacPro3.1 -- dual 3 GHz quad-core Xeon, 6GB memory) running Lion (10.7.3) that I'm using for as a server for a business (files, print, media, etc.) as well as a development ...
5
votes
3answers
9k views

Solution for Airprint with a router that is not Bonjour compatible

I'm trying to troubleshoot remotely for my mother and her iPad. I sent her a Canon Airprint-compatible printer which is visible/usable on her wireless network by a desktop PC and a netbook, but not ...
5
votes
2answers
901 views

Internet Sharing failing on Mac OS X Lion Server

Before I upgraded to Lion Server, I was running 10.7.1 I setup Internet Sharing in the preferences (Share from Ethernet 1 to Ethernet 2). After the upgrade, sharing doesn't work unless I take the ...
5
votes
1answer
198 views

Resources for a Mac-only office

What are some good resources about running a small office (25 or so computers) with Mac computers only (though perhaps with a Windows or Linux/Unix file server)? In other words, what information and ...
5
votes
3answers
121 views

Where does MacOS store remembered Wi-Fi Names?

My mac knows about 50-100 different Wi-Fi network names. I'd like to know where they are remembered, I can't find it. I've searched. I understand that there is a GUI for editing this information, but ...
5
votes
1answer
91 views

Encrypt Time Machine backup data sent over the network

I have three relevant machines: An iMac running 10.10 as my Time Machine server. A MacBook Pro running 10.10, which backs up to the server. Backup encryption is enabled. A PowerBook G4 running ...
5
votes
1answer
130 views

How to increase the amount of time the wifi waits before timing out a connection?

I'm currently traveling abroad. Sometimes when connecting to a very old or a heavily used router, the connection will timeout after 2-3 seconds. I think some of these routers just need more time to ...
5
votes
3answers
3k views

How to add some additional DNS search domains without ignoring the DHCP ones?

I just want to add my own list of Search Domains but without overriding the ones returned by the DHCP? As anyone would imagine I already tried to add them to Network > Advanced > DNS but adding them ...
5
votes
1answer
974 views

Lion Server DHCP randomly loses settings and reverts to defaults

I’ve been trying to set up Lion Server on a Mac Pro with it acting as the router/gateway/firewall/DNS/NAT and DHCP. I’ve been trying to setup an internal-only network named mycompany.something. After ...
5
votes
1answer
1k views

Is there a way to configure Mac OS X Snow Leopard server as an Internet gateway with bandwidth tracking per user?

I'd like to use Mac OS X 10.6.7 Snow Leopard Server as an Internet gateway. My router would connect to the Internet facing NIC on my Mac Mini server and the internal NIC would connect to a WiFi ...
4
votes
4answers
3k views

Wi-Fi Diagnostics app not found

After reading this CNet article I was pretty excited to have a tool that monitors my wireless network since I'm in the process of setting it up well. Wi-fi Diagnostics is said to be in the ...
4
votes
2answers
224 views

Selecting a default wi-fi connection

I have multiple wifi connections in my campus (XYZ-Open, XYZ-Secure and XYZ-Guest) where XYZ-Secure is a secure connection and asks for authentication. Students use the secure connection which has a ...
4
votes
2answers
13k views

Find gateway address and netmask?

I come from the land of windows, where the ipconfig command shows four important pieces of information: IP address, netmask, gateway address, and MAC address. However, on a Mac, ifconfig only shows ...
4
votes
1answer
1k views

Neighbor's Airport Extreme extending my wireless network?

I noticed a new machine on my network -- it's my next-door neighbor's Airport Extreme! My network is set up with a WPA2 Personal password, and I don't believe that he's cracking passwords to steal ...
4
votes
3answers
9k views

Where is the MAC address of my Thunderbolt to Ethernet adapter?

I have a Thunderbolt to Ethernet adapter for a Macbook Air and I need to assign a static IP address to it. I assume the MAC address is embedded in a given adapter... and by convention I would assume ...
4
votes
1answer
1k views

Given its IP, how can I find out the name of a Windows PC on my network?

I'd like to find out the computer name of a Windows PC (like the name shown in the 'Shares' section of the Finder, e.g. bill-pc) given only its IP address. nslookup doesn't do the trick. I'm also ...
4
votes
2answers
694 views

How does the defaults domain ‘Network’ work? (/Network/Library/Preferences/)

How does the Network preference/defaults domain work on Mac OS? I see it referenced in a lot of Apple documentation, but I don’t understand this particular preference domain. I get the user defaults ...
4
votes
1answer
2k views

Can I move my iTunes library to a network drive?

The question title pretty much says it all. I'd like to be able to free up space on my iMac G5's hard drive. I had considered upgrading the drive, but moving it off the Mac seems like it'd be a better ...
4
votes
2answers
203 views

get a notification when my machine is pinged

I'd like to be able to be notified in any way (sound, notification, growl, etc) when someone pings my machine. Is that possible?