Changing your IP address:

I would also think 'ifconfig' is the way to go on this. I speculate that the only way the change in the preference. There is no doubt that you can change the IP without rebooting. I use various location settings on my TiBook and prefer to sleep it to 'refresh' all apps as some things mail, remote control apps, etc get confused. However, this seems much less an issue these days. I would think a reboot would be more critical on an OS X server as it is picky about having nameservice running and configured. So, changing the IP may mean that it does not gracefully reconfigure the host name.

There's a much simpler way.

3 Ways to Change the IP Address on a Mac - wikiHow

You set up 2 locations, one with each IP you want. Use the command "scselect" to change locations. I need to assign static IP address with shell script. I tried ipconfig. It only works half way. The change was propagated by configd. I can see that in system. But it didn't get kept. The old setting came back on reboot. Lost your password? Powered by the Parse. I manage multiple webservers in both a live and test environment, and often set up a machine with a 'test' IP. However, I find them more laborious than the method I use on the Client version.

Read on for my solution The following comments are owned by whoever posted them. This site is not responsible for what they say. Don't reboot Authored by: sharumpe on Jan 21, '05 AM.

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Rather than rebooting just to change an IP, why don't you use ifconfig? Authored by: csdk on Jan 21, '05 PM. If not, skip ahead to step Click the checkboxes beside the protocols that you want to configure. Click the protocol names to configure each proxy. Setup fields appear to the right of the protocol list. Enter the proxy information as provided by your network administrator. Click OK to exit advanced setup. Click Apply to activate and begin using your new network settings.

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Sometimes the router and modem are in the same unit so you can unplug them both from one plug. If the router and modem are separate, you can unplug either to reset your IP address. Wait a couple of seconds or minutes. Most residential connections have what is called a Dynamic IP Address. This means that your Internet Service Provider gives you a new IP address each time your router or modem connects to their network. Plug the router back in. Wait for the router to reconnect to the internet.


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Check the new IP address. You can find this in the "Network" section of "System Preferences. I have a school computer that won't let me change that. What can I do?

Change Your IP address and DNS Server on a Mac

You'll want to take a look at UltraSurf or Psiphon for that. You may also want to look at using a proxy server.


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Yes No. Not Helpful 0 Helpful 2. Natalie Tellechea. Not Helpful 6 Helpful 4. Is there any way I can do Method 1 but still connect to the Internet?

Set IP Address from the Mac Command Line

You'll have to make sure to still follow the subnet mask, which means is you need to find your old IP address. Make sure you keep the first three octets of numbers the same If you don't, your router will get confused and think your traffic is coming from outside. Not Helpful 0 Helpful 1. Search Google for "what is my IP". If it's not the same as your old IP address, it worked!