Finding out what version of PHP you have
Different versions of PHP may have different default settings, and in the case of newer versions might have new functions. If you can’t get something to work, and think it might be because you have the wrong version of PHP there is a simple way to check. Simply running the phpinfo () function will not only tell you your PHP version but an abundance of information about all your PHP settings. Here is an example:
<?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.
Tracert
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.
Examples
To trace the path to the host named corp7.microsoft.com, type:
tracert corp7.microsoft.com
To trace the path to the host named corp7.microsoft.com and prevent the resolution of each IP address to its name, type:
tracert -d corp7.microsoft.com
To trace the path to the host named corp7.microsoft.com and use the loose source route 10.12.0.1-10.29.3.1-10.1.44.1, type:
tracert -j 10.12.0.1 10.29.3.1 10.1.44.1 corp7.microsoft.com
Windows IP Commands
Display Connection Configuration: ipconfig /all
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
How To Trace An Email Address
What is an email header?
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.