You can always find the Apple menu in the upper left of your Mac screen, scrolling down to select either Sleep or Lock Screen. Users running on battery power may prefer to put their Mac to sleep to save power. The practical effect is the same preventing others from accessing your Mac , but this latter option saves battery power while the user is away.
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Post them below or e-mail us! Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion. Don't show this again. Computers How to lock your screen in OS X There are several ways to lock your display in OS X and prevent unauthorized access should you need to briefly leave your system. By Topher Kessler. Check this option to require a password after the given time frame. Note that Apple offers time frame options of 5 seconds, 1 minute, 5 minutes, and more, but you can customize this to be intermediary time frames by running the following defaults command in the Terminal change "SECONDS" to be the number of seconds before the system prompts for a password : defaults write com.
Since accessing the Apple menu or Spotlight and other menu extras require moving your mouse to the top of your display, I recommend using one of the bottom two corners for enabling the screensaver and locking the display, especially if you have the screen lock set to activate immediately when the screensaver starts.
Sleep the system Since the screen lock will activate when you sleep the system, you can also simply do this from the Apple menu or by using a hot key , and thereby lock your system; however, as with logging out this will also prevent processes from running in the background, and may even disconnect you from active network services. How to enable a lock screen experience by initiating sleep mode: You could also just put your entire Mac into sleep mode, which will also toggle the required user password on wakeup, providing you have configured your login password to be enabled for sleep and screen saver as listed at the beginning of this blog.
However, you Mac is now in sleep mode and background services may not run unless you have the latest portable macs which have the Power Nap feature. To do this you can perform ANY of the following:. In OS X Mavericks, Hold down the Control key whilst pressing the power button to bring up this menu to quickly choose one of these options. It comes free with every Mac, and it's great for figuring out what the problem is with a dodgy internet connection.
Everything you can do in Network Utility you can actually do in a Terminal window using unix tools. But why go to all that effort when Apple have created a nice application that lets you do things much more easily. When you first open up Network Utility you will see nine tabs along the top [ Update: eight in Snow Leopard].
Here's a run through of what you can do in each tab. The first tab, Info, unsurprisingly gives you general information about your network. The Network Interface drop-down menu shows all the different ways your Mac can connect to the Network. Typically these are ethernet, wireless and Firewire. You will only have an IP address if that network interface is connected, otherwise it will say unknown. The Hardware Address, otherwise known as a MAC address, can be used to uniquely identify your computer even though it is possible to change it.
One useful way to use the MAC address is when setting up your wireless router. You can set most routers to only allow specific MAC addresses to join, meaning other people can't log onto your wireless and connect to the internet. Netstat is a tool that is really useful to network administrators for troubleshooting, but pretty useless to the average user. If you choose "Display routing table information" and click Netstat, you will get a list that contains all the computers on the network.
If you choose "Display the state of all current socket connections" and click Netstat you'll see a list of your computer's network connections. For example, the first items on the list will correspond to any web pages you have open. If you type the numbers under "Foreign Address" into Safari, the web page will sometimes appear. The AppleTalk tab is very similar to the Netstat tab, but specifically for Apple's proprietary protocol called AppleTalk.
It was very popular in the early days of the Mac, but now has been pretty much abandoned and is unsupported in Snow Leopard. You can read more about AppleTalk on its Wikipedia page.
How to lock your Mac like you did on your PC
Ping is a tool to check if an internet address is working. When you "ping" an address, you send a small bit of data which it sends back. You can use this to check if a website is down if it isn't loading in Safari. Alternatively, if you think your internet connection is down, you can try pinging sites that almost never go down like google. Lookup allows you to get information about a web site or IP address.
The drop-down menu allows you to choose from a number of different types of information. For example, performing a Name Server lookup on macosxtips. When you enter an address and click Trace, traceroute will show you the route taken by data sent between you and the server. It allows you to see all the servers that your data goes through along the way.
You can use this to troubleshoot connection problems by finding out the point where your data is being blocked.
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You can also use it when you are downloading a file and have multiple download mirrors in different locations to choose from. Just type the addresses of the mirrors into traceroute and you can get a good idea of which mirror is fastest. The Whois database gives you information about internet addresses and who has registered them.
The default whois server whois. You will get information like the registrant, their address, who they registered with, when their registration was started and and when it expires. Finger, created in , is one of the earliest forms of status updates that are now done using Facebook and Twitter. It's hardly used anymore, but you can use finger to check if your friends are online, and you can post. One of the best ways to use finger is to type in your username or the username of another user on your Mac.
The final tab in Network Utility, Port Scan, is for scanning which ports are open at a certain address. These Network ports are a sort of virtual version of the ports on the side of your computer, and each port is for a certain type of network traffic. For example, port 80 is used for web pages.
You can use Port Scan to test your own computer by typing in the name of your Mac followed by ". You can find this name in the Sharing section of System Preferences. If you find that one of these isn't working, it might be because your firewall is blocking the port that it uses. Instead of turning off your firewall, you can just set it to open that port. Just run Port Scan with the application or sharing turned off and then again with it turn on to see which port appears.
You can then set your firewall to open this port and allow network traffic through. Note that the built in firewall that comes with Mac OS X works on a per application basis rather than a port basis, to keep things simpler for the average user. You can quickly remove preference panes from System Preferences by right-clicking or Control-clicking on them and choosing remove preference pane. Of course this only works on the preference panes that you have installed yourself, i.
Depending on which you chose, the file could be located in the Library folder in Macintosh HD or the Library folder in your user folder.
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Just like if you were Trashing the file, System Preferences will ask you for your administrator password when removing preference panes for all users. I have. It has loads of user-contributed Geeklets all in one place for you to download.
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