<?php phpinfo() ?>

Just put that single line of code in a PHP file, and run it on your server. That’s it! By running the file you should have all of the PHP information you need.

                          

Syntax

-d : Prevents tracert from attempting to resolve the IP addresses of intermediate routers to their names. This can speed up the display of tracert results.

-h MaximumHops : Specifies the maximum number of hops in the path to search for the target (destination). The default is 30 hops.

-j HostList : Specifies that Echo Request messages use the Loose Source Route option in the IP header with the set of intermediate destinations specified in HostList. With loose source routing, successive intermediate destinations can be separated by one or multiple routers. The maximum number of addresses or names in the host list is 9. The HostList is a series of IP addresses (in dotted decimal notation) separated by spaces.

-w Timeout : Specifies the amount of time in milliseconds to wait for the ICMP Time Exceeded or Echo Reply message corresponding to a given Echo Request message to be received. If not received within the time-out, an asterisk (*) is displayed. The default time-out is 4000 (4 seconds).

TargetName : Specifies the destination, identified either by IP address or host name.

                          

Display DNS Cache Info: ipconfig /displaydns

Clear DNS Cache: ipconfig /flushdns

Release All IP Address Connections: ipconfig /release

Renew All IP Address Connections: ipconfig /renew

Re-Register the DNS connections: ipconfig /registerdns

Change/Modify DHCP Class ID: ipconfig /setclassid

Network Connections: control netconnections

Network Setup Wizard: netsetup.cpl

Test Connectivity: ping www.whatismyip.com

Trace IP address Route: tracert

Displays the TCP/IP protocol sessions: netstat

Display Local Route: route

Display Resolved MAC Addresses: arp

Display Name of Computer Currently on: hostname

Display DHCP Class Information: ipconfig /showclassid

                          

Each email you receive comes with headers. The headers contain information about the routing of the email and the originating IP of the email. Not all emails you receive can be traced back to the originating point and how you send emails determines whether or not they can be traced back to you. The headers don’t contain any personal information. At most, you can get the originating IP and the computer name that sent the email. The originating IP can be looked up to determine from where the email was sent. IP address location information does not contain your street address or phone number. It will most likely contain the city and the ISP the sender used.

How do I get the email header?

Each email program will vary as to how you get to the email options. I’ll cover the basics…the rest is up to you.

• Outlook

Right click the email while it’s in the inbox and choose Message Options. A window will open with the headers in the bottom of the window.

• Windows Live Mail

Right click the email while it’s in the inbox, choose Properties, then click the Details tab.

• GMail

Open the email. In the upper right corner of the email you’ll see the word Reply with a little down arrow to the right. Click the down arrow and choose Show Original.

• Hotmail

Right click the email in the inbox and choose View Message Source.

• Yahoo!

Right click the email in the inbox and choose View Full Headers.

• AOL

Click Action and then View Message Source.

You can see that no matter the email program, the headers are usually just a right click away.

I’ve got the header, now what?

Usually the first IP listed is where the email originated. There are exceptions to this. You’ll have to look at the information logically to deduce the originating IP.

Can any email be traced?

Yes and No. For example, someone who sends an email to your hotmail account shows in the X-Originating IP section of the headers. However, someone who sends you an email from GMail can ONLY be traced back to the GMail servers.