A MAC address is a unique identifier that is assigned to each physical network interface on a computer. Different than a computers IP address, MAC addresses are frequently used for network access control and to monitor network connectivity, and they can be spoofed for virtualization needs or to circumvent some network limitations. If you need … Read More
Private Eye is a free real-time network monitor app for Mac OS X that is extremely easy to use. Upon launching the app, you’ll start to see all open network connections by application and process, and you can then filter connections by app, monitor all open connections, or watch only incoming or outgoing transfer. Connections … Read More
The easiest way to retrieve a routers IP address from a Mac is by going through System Preferences in Mac OS X. This is much the same way that you get your Macs IP address, but the router IP is a few steps further within preference menus.
If you have a mixed network of Mac and Windows PC’s, chances are good that you’ll be wanting to move files between the two operating systems. The easiest way to share files from Mac OS X to Windows is to enable Samba support for a given user account on the Mac. This tutorial will how … Read More
A recent addition to Mac OS X and modern versions of Xcode development tools is a utility called Network Link Conditioner, a highly customizable tool that lets you simulate a variety of common internet connectivity speeds. The utility is aimed at Mac and iOS developers so they can test their apps response times on a … Read More
Using GeekTool and lsof, you can display an automatically updated list of open network connections directly on a Mac OS X desktop. This is tip is a “safe” alternative to the previously mentioned open_ports utility. The problem with installing and using open_ports is that it is a third party script running as root, and for … Read More
You can watch all open network connections for both incoming and outgoing transfers using a free command line utility called open_ports.sh. Open_Ports is much more useful than using lsof to list open internet connectionsbecause it provides extensive network information in a very easy to read format, including what program or process is opening the connection, … Read More
If you want to set your Mac to always have the same IP address (also known as a static IP address), you can easily configure this to be set in the Network settings of OS X. This can be valid for both wi-fi networks and wired ethernet networks, and it can also be set under … Read More
Knowing your Mac’s IP address is important for setting up a network or sharing files, here’s two different ways to find your IP address in Mac OS X; an easy way through the GUI and a more technical approach with the command line. These methods will be the same whether you are connected via ethernet … Read More
If you frequently access a file server from a Mac it’s pretty helpful to map the network drive to your desktop. There’s two ways to do this, one method is just mapped for one time use and will reset after a reboot, and another method is a more permanent route that allows the mapped network … Read More
Anytime you are connected to a local area network (LAN) you’ll be assigned an IP address for that network, and often it’s important to know what this IP address is. There are two quick ways to get your LAN IP address in Mac OS X, one is more user friendly using the GUI, and the … Read More
The Mac firewall has long been based on IPFW, a robust and strong software firewall that comes form the unix world. But managing IPFW usually requires digging around in the command line, so as I was recently looking around for a Mac OS X GUI to IPFW, I came across WaterRoof. If you’re looking for … Read More
If you’re trying to tweak a wireless router to get the best signal, being able to continuously measure the wi-fi signal strength while you toy with the antennas, placement, and whatever else on the network is really valuable. While most users are best served by using the Mac Wi-Fi Diagnostics app to monitor signal strength … Read More
Ping is an essential utility for network administrators, but it’s also pretty handy to check if websites are online, how your internet connection is working, if you are experiencing lag or packet loss on a network connection, or to determine if a network resource is available. Mac users can access and use ping to target … Read More
There are times when a user will need to to manually set an IP address in Mac OS X to one which will be compatible with a joined network, either wi-fi or ethernet. Here will cover how to change a Mac IP address to a manual setting, and also how to pick an IP address … Read More
Have you ever had an iPhone experience cellular data problems? Maybe the iPhone has an inability to connect to a cellular network, or some other cellular connection issue occurs that makes it unable to send and receive data or even calls. If an iPhone is experiencing cellular connectivity and cellular data issues or problems, you … Read More
Recently the LAN at my office had been running slower than usual, and I couldn’t pinpoint what was using up all the extra bandwidth. I had a suspicion that P2P traffic was to blame but I just couldn’t see anything obvious on the offending machine. So the question of course, is how do you see … Read More
Do you need to access and mount an SMB share from the command line on a Mac? You may be used to connecting to Windows PC from the Mac networking features to mount a Windows share on Mac, but you can also connect to Samba shares from the Terminal too. This article will show several … Read More
