Un­der­stand net­work anal­y­sis

Find out what’s go­ing on with your net­work by us­ing Spot­light to search for and open Net­work Util­ity, which of­fers im­por­tant tools for di­ag­nos­ing con­nec­tions

Mac Format - - WIFI SECRETS -

1 The Info tab

The first tab in Net­work Util­ity shows at­tributes of your con­nec­tion to your lo­cal net­work and of­fers ba­sic data trans­fer sta­tis­tics. Use the pop-up menu to check de­tails of a dif­fer­ent net­work in­ter­face, such as Eth­er­net or Wi-Fi.

2 The Ping tool

Hav­ing trou­ble con­nect­ing to the in­ter­net or an­other de­vice? En­ter its IP ad­dress or web ad­dress in the box at the top of this tab, then click the Ping but­ton. If you see lots of packet er­rors in the re­sults, that means your con­nec­tion is tim­ing out.

3 The Lookup tool Want to know more about where com­mu­ni­ca­tions are com­ing from? Pro­vide this tool with an IP ad­dress and it’ll try to con­vert it to a do­main name – handy if an email header in­cludes the for­mer and you want to know more about its source.

4 The Whois tool

Want to find out who owns a par­tic­u­lar web­site? Type a do­main name into the box at the top of the Whois pane for de­tails. This will give you the reg­is­tra­tion de­tails of the do­main, but it’s im­por­tant to know that many site own­ers anonymise their in­for­ma­tion.

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