Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>After searching Google for <code>php detect http proxies</code> I came up with the following:</p> <p><a href="http://forums.digitalpoint.com/showthread.php?t=58964">http://forums.digitalpoint.com/showthread.php?t=58964</a></p> <p><a href="http://forums.digitalpoint.com/showthread.php?t=365467">http://forums.digitalpoint.com/showthread.php?t=365467</a></p> <p><a href="http://www.roscripts.com/PHP_Proxy_Detector-75.html">http://www.roscripts.com/PHP_Proxy_Detector-75.html</a></p> <p>...and quite a number of other interesting hits.</p> <p>EDIT:</p> <p>AFAIK there is no way to detect HTTP proxies either with absolute certainty, or safely:</p> <ul> <li><p>Anonymizer services do not add the proper headers to their requests - as a matter of fact they remove some of them. You need to keep a list of the most popular anonymizer services and their IP address blocks and detect them that way. There are some lists on-line that you might be able to use, but they are far from complete - especially if you consider that most large institutions (ISPs, companies, universities etc) provide a proxy server for their users. Some even require their users to use them.</p></li> <li><p>Many HTTP proxies are configured so that they simply forward requests without altering the headers.</p></li> <li><p>VPN installations have the same effect as an HTTP proxy - namely allowing HTTP requests to originate from a different IP than that of the computer where the web broswer is - without being one.</p></li> <li><p>Any SSH server can be used as a SOCKS proxy by its users, which is not really detectable since it is not really an HTTP proxy.</p></li> <li><p>There are many legitimate HTTP proxies that are not publically accessible. For example there are HTTP proxy products that are installed in a home network and provide parental control and questionable content (pornography, phishing sites etc) filtering for the whole network.</p></li> </ul> <p>What kind of abuse are you seeing, where detecting HTTP proxies could be useful?</p>
    singulars
    1. This table or related slice is empty.
    1. POdetermine if user is using proxy
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USthkala
    1. USthkala
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POdetermine if user is using proxy
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIts more of a another way to check if the user is cheating. We have a few checks in place but really the only way to cheat in my game is to have 2 or more accounts controlled by one person in the same "group/company/alliance". Other than that there isn't really any reason to cheat. So by checking if they are using a proxy, it was basically a way to back them in a corner and ask them why they are cheating. Something else for them to prove. Look above for an edit on the best script I found and why it isn't working for me.
      singulars
      1. PO
      1. USjefffan24
    2. COwell scratch that, I just changed the timeout on the script above and it worked. That script seems to be working, it blocked vtunnel.com and hidemyass.com
      singulars
      1. PO
      1. USjefffan24
    3. COI am not a PHP programmer, but unless I am mistaken your script attempts to open a connection at port 80 of the remote host. If that port is blocked by a firewall (the norm for home users) and the packet is dropped instead of rejected your script will have to wait until the connection times out. I would remove that check outright - it's not really useful since many proxies don't use port 80 anyway, and it also catches home users that have an open web server at home.
      singulars
      1. PO
      1. USthkala
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload