Network


How to Change Your iPhone's DNS Servers

  Matt Cone       January 14, 2021

Just like in macOS, you can change the DNS servers on your iPhone. This can significantly speed up Safari and other iPhone apps that use the Internet. For a general introduction to DNS, and to learn why you would want to change the DNS servers on your iPhone, see How to Change Your Mac’s DNS Servers. Before we start, you should know a couple things about how iOS handles DNS. First, these instructions only work for Wi-Fi connections - iOS does not allow you to change the DNS servers when connected to cellular networks.

How to Find Your iPhone's IP Address

  Matt Cone       January 6, 2021

Your iPhone is assigned something called an IP address when it connects to a Wi-Fi network. Other devices that are connected to the same Wi-Fi network can use this unique identifier to transfer information to and from your iPhone. If this sounds confusing, it might help to think of an IP address as your iPhone’s home address. Just like physical mail, which is routed to your home via a unique address, digital information is routed to your iPhone using an IP address.

How to Change Your Mac's DNS Servers

  Matt Cone       January 4, 2021

Your Mac uses something called the Domain Name System (DNS) to access websites. It’s a system invisible to you, the user, and most people don’t even know it exists. But if the DNS servers you’re using are slow or unavailable, websites will load slowly or won’t load at all. That’s why it’s important to learn about DNS and consider changing your DNS servers. In this tutorial, we’ll show you everything you need to know about DNS to speed up surfing and ward off potential problems.

How to Connect an iPhone to a Wi-Fi Network

  Matt Cone       January 1, 2021

If you’re a new iPhone owner, one of the first things you’ll want to learn how to do is connect your iPhone to a wireless network. That’s because there are certain times when your cellular data connection just won’t cut it, even if you have an unlimited data plan. Using Facetime, downloading and streaming content from iTunes, and even surfing the web can be painfully slow without a wi-fi connection.

Make Your iPhone Ask to Join Wi-Fi Networks

  Matt Cone       April 11, 2013

By default, your iPhone automatically connects to known wi-fi networks. (To stop an iPhone from automatically connecting, you can tell your iPhone to forget a wi-fi network.) But what happens if you take your iPhone to a new location? You’ll need to manually connect your iPhone to a wi-fi network. That’s a hassle. But if you have the foresight and inclination, you can save yourself time in the future by making your iPhone ask to join wi-fi networks when no known networks are available.

Tell Your iPhone to Forget a Wireless Network

  Matt Cone       April 10, 2013

When you connect an iPhone to a wi-fi network, the iPhone remembers that network and will automatically attempt to connect to it in the future. This is a great feature for wi-fi networks you trust and use frequently. But mistakes happen. If you connect to the wrong network at a coffee shop, your iPhone will automatically attempt to join that network every time you visit the coffee shop in the future.

Controlling AirPort Network Access with Time Limits

  Matt Cone       April 9, 2013

If you own an AirPort base station, you can use the Timed Access feature to control the days and times when users access the internet. This could come in handy in a variety of situations. For example, if you own a cafe and provide free wi-fi access, you can configure the AirPort to block all access to the internet when your business is closed. And if you have children, you can set time limits for specific devices in your home.

How to Find Your iPad's MAC Address

  Matt Cone       March 28, 2013

Your iPad’s Wi-Fi interface has a permanent, unique serial number called a media access control (MAC) address. Some universities and employers may request your iPad’s MAC address to monitor or limit your access to certain Wi-Fi networks. MAC addresses can also be used for less nefarious purposes. For example, if your iPad is stolen on a university’s campus, the IT department may be able to use its MAC address to trigger an alert when the criminal connects your iPad to a university network.

How to Find Your iPad's IP Address

  Matt Cone       March 26, 2013

Your iPad is assigned something called an IP address when it connects to a Wi-Fi network. Other devices that are connected to the same Wi-Fi network can use this unique identifier to transfer information to and from your iPad. If this sounds confusing, it might help to think of an IP address as your iPad’s home mailing address. Just like physical mail, which is routed to your home via a unique address, digital information is routed to your iPad using an IP address.

How to Find Your iPhone's MAC Address

  Matt Cone       March 25, 2013

Your iPhone’s Wi-Fi interface has a permanent, unique serial number called a media access control (MAC) address. Some universities and employers may request your iPhone’s MAC address to monitor or limit your access to certain Wi-Fi networks. MAC addresses can also be used for less nefarious purposes. For example, if your iPhone is stolen on a university’s campus, the IT department may be able to use its MAC address to trigger an alert when the criminal connects your iPhone to a university network.



© 2021. A Matt Cone project. CC BY-NC-SA 4.0. Made with 🌶️ in New Mexico.