I have setup an intranet of 10 machines(all running Ubuntu).One of them is the server hosting lets say Example Web Page. I use the other 9 machines to load test the server.Also intend to set up one PC as the master.So I have a master with 8 slaves testing www.example.com.The test scripts are installed on all the 9 machines & I have a browser form interface on my master node.... The form looks like The GO button calls another php script which ssh s into the slave nodes and run the test scripts So i could do a test like -> load server(Example Web Page) using 3 client machines; stressing vector 'webserver' (//one of the many testing programs installed on the client machines) A sample php code would look (this is only for 3 machines) Code: $machineValues = array("192.168.11.30", "root", "password","david", " 192.168.11.19", "root", "password2","david2", "192.168.11.32", "root2", "password3","david3"); if (!function_exists("ssh2_connect")) die("function ssh2_connect doesn't exist"); // log in at server1.example.com on port 22 for ( $counter = 0; $counter < sizeof($machineValues); $counter = $counter+4) { if($number_of_machines<$number){ if(!($con = ssh2_connect($machineValues[$counter], 22))){ echo "fail: unable to establish connection\n"; echo "Machine number $counter is $machineValues[$counter]"; } else { // try to authenticate with username root, password secretpassword if(!ssh2_auth_password($con, $machineValues[$counter+1], $machineValues[$counter+2])) { echo "fail: unable to authenticate\n"; } else { // allright, we're in! echo "okay: logged in...\n"; // execute a command $stream = ssh2_exec($con, 'python/home/'.$machineValues[$counter+3].'/Desktop/hello.py'); stream_set_blocking($stream, true); while($line = fgets($stream)) { flush(); echo $line."<br />"; } } } } $number_of_machines++; } ?> Now,lets say I select from the form No of Client MAchines : 1 The code ssh into 192.168.11.30 and runs the script. However i still got 'ip' => "192.168.11.19" and 'ip' => "192.168.11.32" available and I may wish to use that after a certain time delay... So i wish i could create some code that would enable the browser interface to give a message something like "you got 2 more machines available!" Would you like to add more?:thumbs: I would add one more field in the form More Client MAchines: <input type="text" name="machines" /><br /> Eg.User selects 1, when they click submit,the PHP code should ssh into the next machine available which is "192.168.11.19"....and then report back,"you got 1 more machine available!" and so on....... How would i do that?
I don't know how much possible it is with PHP, but in Perl there are lot of modules at http://cpan.org to help you out.