How can I get the MAC and the IP address of a connected client in PHP

Question

I need to know the MAC and the IP address of the connect clients  how can I do this in PHP

User · Answer

Turn on output buffering   ob start         Get the ipconfig details using system commond   system  ipconfig  all          Capture the output into a variable    mycomsys ob get contents          Clean  erase  the output buffer   ob clean        find mac    Physical      find the  Physical   amp  Find the position of Physical text     pmac   strpos  mycomsys   find mac        Get Physical Address     macaddress substr  mycomsys   pmac 36  17       Display Mac Address    echo  macaddress      This works for me on Windows  as ipconfig  all is Windows system command

User · Answer

For windows server I think u can use this    lt  php echo exec  getmac      gt

User · Answer

too late to answer but here is my approach since no one mentioned this here  why note a client side solution   a javascript implementation to store the mac in a cookie  you can encrypt it before that  then each request must include that cookie name  else it will be rejected  to make this even more fun you can make a server side verification from the mac address you get the manifacturer  there are plenty of free APIs for this  then compare it with the user agent value to see if there was some sort of manipulation  a mac address of HP   a user agent of Safari   reject request

User · Answer

The MAC address of a client  in the sense of the computer that issued the HTTP request  is overwritten by every router between the client and the server   Client IP is conveniently provided to the script in   SERVER  REMOTE ADDR    In some scenarios  particularly if your web server is behind a proxy  i e  a caching proxy    SERVER  REMOTE ADDR   will return the IP of the proxy  and there will be an extra value  often   SERVER  HTTP X FORWARDED FOR    that contains the IP of the original request client    Sometimes  particularly when you re dealing with an anonymizing proxy that you don t control  the proxy won t return the real IP address  and all you can hope for is the IP address of the proxy

User · Answer

Server IP  You can get the server IP address from   SERVER  SERVER ADDR      Server MAC address  For the MAC address  you could parse the output of netstat -ie in Linux  or ipconfig  all in Windows   Client IP address  You can get the client IP from   SERVER  REMOTE ADDR    Client MAC address  The client MAC address will not be available to you except in one special circumstance  if the client is on the same ethernet segment as the server    So  if you are building some kind of LAN based system and your clients are on the same ethernet segment  then you could get the MAC address by parsing the output of arp -n  linux  or arp -a  windows     Edit  you ask in comments how to get the output of an external command - one way is to use backticks  e g    ipAddress   SERVER  REMOTE ADDR     macAddr false    run the external command  break output into lines  arp  arp -a  ipAddress    lines explode   n    arp     look for the output line describing our IP address foreach  lines as  line        cols preg split    s     trim  line       if   cols 0    ipAddress               macAddr  cols 1            But what if the client isn t on a LAN   Well  you re out of luck unless you can have the client volunteer that information and transmit via other means

User · Answer

Getting MAC Address Using PHP   Tested in Ubuntu 18 04  - 2020 Update  Here s the Code    lt  php      mac   shell exec  ip link   awk   print  2          preg match all     a-z0-9     s      0-9a-f  2    5  0-9a-f  2   i    mac   matches        output   array combine  matches 1    matches 2         mac address values    json encode  output  JSON PRETTY PRINT          echo  mac address values   gt    Output          lo    00 00 00 00 00 00        enp0s25    00 21 cc d4 2a 23        wlp3s0    84 3a 4b 03 3c 3a        wwp0s20u4    7a e3 2a de 66 09

User · Answer

In windows  If the user is using your script locally  it will be  very simple     lt  php    get all the informations about the client s network   ipconfig     shell exec   ipconfig all           display those informations     echo  ipconfig         look for the value of  physical adress   and use substr   function to    retrieve the adress from this long string    here in my case i m using a french cmd    you can change the numbers according adress mac position in the string      echo   substr shell exec   ipconfig all   1821 18      gt

User · Answer

You can do this easily using openWRT  If yo use a captive portal you can mix php and openWRT and make a relation between the IP and the mac   You can write a simple PHP code using     localIP   getHostByName getHostName        Later  using openWRT you can go to  tmp dhcp leases  you will get something with the form    e4 a7 a0 29 xx xx 10 239 3 XXX DESKTOP-XXX    There  you have the mac  the IP address and the hostname

User · Answer

I don t think you can get MAC address in PHP  but you can get IP from   SERVER  REMOTE ADDR   variable

User · Answer

All you need to do is to put arp into diferrent group   Default   -rwxr-xr-x 1 root root 48K 2008-11-11 18 11  usr sbin arp    With command   sudo chown root www-data  usr sbin arp   you will get   -rwxr-xr-x 1 root www-data 48K 2008-11-11 18 11  usr sbin arp    And because apache is a daemon running under the user www-data  it s now able to execute this command   So if you now use a PHP script  e g     lt  php  mac   system  arp -an    echo  mac    gt    you will get the output of linux arp -an command

User · Answer

Use this class  https   github com BlakeGardner php-mac-address   This is a PHP class for MAC address manipulation on top of Unix  Linux and Mac OS X operating systems  it was primarily written to help with spoofing for wireless security audits

User · Answer

Perhaps getting the Mac address is not the best approach for verifying a client s machine over the internet  Consider using a token instead which is stored in the client s browser by an administrator s login    Therefore the client can only have this token if the administrator grants it to them through their browser  If the token is not present or valid then the client s machine is invalid

User · Answer

You can use the following solution to solve your problem    mac  UNKNOWN   foreach explode   n  str replace        trim  getmac    n     as  i  if strpos  i  Tcpip   gt -1   mac substr  i 0 17  break   echo  mac

User · Answer

We can get MAC address in Ubuntu by this ways in php    ipconfig     shell exec   ifconfig -a   grep -Po  HWaddr  K                 display mac address     echo  ipconfig

User · Answer

under linux using iptables you can log to a file  each request to web server  with mac address and ip  from php lookup last item with  ip address and get  mac address   As stated remember that the mac address is from last router on the trace

User · Answer

You can get MAC Address or  Physical Address  using this code    d   explode  Physical Address                   shell exec   ipconfig all        d1   explode      d 1       d2   explode      d1 1      return  d2 1     I used explode many time because shell exec   ipconfig all   return complete  detail of all network  so you have to split one by one   when you run this code then you will get your MAC Address   00-  -  -CV-12   this is fake address for show only

[php] How can I get the MAC and the IP address of a connected client in PHP?

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