Look at the Transfer Statistics section on the right. If the network is active, you will see an increasing number of sent and received packets. These statistics also display network errors and network data collisions. Collisions and errors can be caused by defective or misconfigured network equipment or interference caused by cell phones and microwaves. Your computer sends a series of pings to the other computer and measures how long it takes to come back. This is often a quick way to determine if a website or your Internet service is down. Click the "Traceroute" tab and enter an IP address or website URL to see the network nodes between your computer and the server.
If the Traceroute stops shortly after listing your computer IP address, there is usually a problem with your network or Internet service. If it fails after several network hops, which usually also show the cities where the nodes are located, the problem is usually on the other end, like the website server or its network. Click the "Netstat" tab when performing advanced network diagnostics or troubleshooting. Click the "Whois" tab to find out information about a website or Internet domain.
If your company owns an IP address or website domain, this information tells you if your contact information is updated, unless you have opted to hide it from the public.
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It also shows you when the domain was first registered, last registered and when it's due to expire. A published author and professional speaker, David Weedmark has advised businesses and governments on technology, media and marketing for more than 20 years. He has taught computer science at Algonquin College, has started three successful businesses, and has written hundreds of articles for newspapers and magazines throughout Canada and the United States.
Skip to main content. Testing LAN Speed 1. All available wireless network names, SSID, channels, band, network protocol wireless n, g, b, etc , the network security type, the network signal strength, and the network noise level of the signal discovered will be listed by the scan utility. Now that you have the Wifi app in an easy to find location, using it is slightly different depending on your OS X version. Newer builds of Mountain Lion Outside of accessing the tool, all functionality remains the same.
Under the Wi-Fi Scan tool, you will see all available network names and their respective BSSID, channel, band, protocol wireless n, g, b, etc , security type, their signal strength, and the noise level of the signal. Ultimately those latter functions and their uses are far beyond the scope of this article, but previously Mac users had to use third party apps like Kismet or boot from a separate Linux installation to access advanced network capturing abilities. Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox!
Other Network Utility Tools
Enter your email address below:. Sniffer is not getting started in my mac. Has the full wifi diagnostics app been removed or refined in the later versions of OSX? There you have wi-fi scan tab where you see all visible wifi networks and their signal strength. Mike: Hold down your option key and click on the wifi icon in your menubar. When the app opens up, ignore the dialog and look at the options under the Window menu.
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Just like lucky said. I Also got my wireless adapter stuck in monitoring mode and have no fucking clue how to get it back to normal… Someone please help me!?!?!
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MUCH better Data.. I prefer the rev. Can the new wifi-diagnostic tool in Mountain Lion OS helps me to monitor the traffic flow? Download wireshark and X Be sure you set it to open with wireshark or else it will open with text edit. I played with this utility and I got my Wi-Fi card stuck in monitoring mode. How can I turn this off? Very nice utility. I previously used iStumbler for this. I guess the WiFi menubar applet uses the same framework to find networks as the Network Utilities app.
I also find it interesting that Apple is hiding all the powerful tools in the CoreServices folder rather than Utilities these days, anything to make of that or just Apple hiding clutter from novices? Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited. Harish says:.
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