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DNS Migration Checker
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| <?php | |
| /** | |
| * Script in order to compare a set of DNS Records from the current DNS supplier, to a new Name Server | |
| * A standard array of records are setup, and can be enabled/disabled as required, and altered | |
| * Then set a domain, and new Name Server to check against, and run the script in CLI PHP | |
| * ./dns_checker.php | |
| * | |
| * This will create a HTML file in your current folder with details of the checks. | |
| * | |
| * N.B. You must have Net_DNS2 PEAR module installed 'pear install Net_DNS2' | |
| * | |
| * Licence: http://mattclements.mit-license.org/ | |
| */ | |
| require_once 'Net/DNS2.php'; | |
| if(!class_exists('Net_DNS2_Resolver')) | |
| { | |
| die("Net_DNS2 is required, please run 'pear install Net_DNS2' to install"); | |
| } | |
| //Array of Records to check (enabled = true are checked) | |
| $records_to_check = array( | |
| array( | |
| 'name' => '', | |
| 'type' => 'A', | |
| 'enabled' => true | |
| ), | |
| array( | |
| 'name' => 'www', | |
| 'type' => 'A', | |
| 'enabled' => true | |
| ), | |
| array( | |
| 'name' => 'ftp', | |
| 'type' => 'A', | |
| 'enabled' => false | |
| ), | |
| array( | |
| 'name' => 'mail', | |
| 'type' => 'A', | |
| 'enabled' => false | |
| ), | |
| array( | |
| 'name' => 'webmail', | |
| 'type' => 'A', | |
| 'enabled' => false | |
| ), | |
| array( | |
| 'name' => '', | |
| 'type' => 'MX', | |
| 'enabled' => true | |
| ), | |
| ); | |
| //Domain to Check | |
| $domain = "domain.com"; | |
| //New Name Server to Check | |
| $ns_server = "???.???.???.???"; | |
| $data = <<< EOF | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <meta name="description" content=""> | |
| <meta name="author" content=""> | |
| <title>DNS Checker</title> | |
| <!-- Bootstrap core CSS --> | |
| <link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"> | |
| <style type="text/css"> | |
| body { | |
| margin: 0 1em; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| EOF; | |
| $data .= " | |
| <h1>Checking ".$domain."</h1> | |
| <table class=\"table table-bordered\"> | |
| <thead> | |
| <tr> | |
| <th>Record Type</th> | |
| <th>Record Name</th> | |
| <th>Original NS Response</th> | |
| <th>New NS Response</th> | |
| <th>Response</th> | |
| </tr> | |
| </thead> | |
| <tbody> | |
| "; | |
| foreach($records_to_check as $record_to_check) | |
| { | |
| if($record_to_check['enabled']===true) | |
| { | |
| $data .= "<tr>"; | |
| $to_check_domain = $domain; | |
| if($record_to_check['name']!=="") | |
| { | |
| $to_check_domain = $record_to_check['name'].".".$domain; | |
| } | |
| $original_response = false; | |
| $new_response = false; | |
| $data .= "<th>".$record_to_check['type']."</th>"; | |
| $data .= "<th>".$record_to_check['name']."</th>"; | |
| $data .= "<td>"; | |
| try | |
| { | |
| $resolver = new Net_DNS2_Resolver(array('nameservers' => array('8.8.8.8'))); | |
| $resp = $resolver->query($to_check_domain, $record_to_check['type']); | |
| $original_response = array(); | |
| foreach($resp->answer as $response) | |
| { | |
| if($resp->answer[0]->type==="MX") | |
| { | |
| $data .= $response->exchange; | |
| if (filter_var($response->exchange, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->exchange).")"; | |
| $original_response[] = $response->exchange; | |
| } | |
| elseif($resp->answer[0]->type==="CNAME") | |
| { | |
| $data .= $response->cname; | |
| if (filter_var($response->cname, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->cname).")"; | |
| $original_response[] = $response->cname; | |
| } | |
| else | |
| { | |
| $data .= $response->address; | |
| if (filter_var($response->address, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->address).")"; | |
| $original_response[] = $response->address; | |
| } | |
| $data .= "<br />"; | |
| } | |
| } | |
| catch(Exception $e) | |
| { | |
| $data .= "Exception Thrown"; | |
| } | |
| unset($resolver); | |
| unset($resp); | |
| $data .= "</td>"; | |
| $data .= "<td>"; | |
| try | |
| { | |
| $resolver = new Net_DNS2_Resolver(array('nameservers' => array($ns_server))); | |
| $resp = $resolver->query($to_check_domain, $record_to_check['type']); | |
| $new_response = array(); | |
| foreach($resp->answer as $response) | |
| { | |
| if($resp->answer[0]->type==="MX") | |
| { | |
| $data .= $response->exchange; | |
| if (filter_var($response->exchange, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->exchange).")"; | |
| $new_response[] = $response->exchange; | |
| } | |
| elseif($resp->answer[0]->type==="CNAME") | |
| { | |
| $data .= $response->cname; | |
| if (filter_var($response->cname, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->cname).")"; | |
| $new_response[] = $response->cname; | |
| } | |
| else | |
| { | |
| $data .= $response->address; | |
| if (filter_var($response->address, FILTER_VALIDATE_IP)) | |
| $data .= " (".gethostbyaddr($response->address).")"; | |
| $new_response[] = $response->address; | |
| } | |
| $data .= "<br />"; | |
| } | |
| } | |
| catch(Exception $e) | |
| { | |
| $data .= "Exception Thrown"; | |
| } | |
| unset($resolver); | |
| unset($resp); | |
| $data .= "</td>"; | |
| if(is_array($original_response)) | |
| sort($original_response); | |
| if(is_array($new_response)) | |
| sort($new_response); | |
| $data .= "<td>"; | |
| if($original_response!==false && $new_response!==false && (is_array($original_response) || is_array($new_response))) | |
| { | |
| $diff = array_diff($original_response,$new_response); | |
| if(empty($diff)) | |
| { | |
| $data .= "<span class=\"label label-success\">All OK</span>"; | |
| } | |
| else | |
| { | |
| $data .= "<span class=\"label label-danger\">Error</span>"; | |
| } | |
| } | |
| elseif($original_response!==false && $new_response!==false && $original_response===$new_response) | |
| { | |
| $data .= "<span class=\"label label-success\">All OK</span>"; | |
| } | |
| else | |
| { | |
| $data .= "<span class=\"label label-danger\">Error</span>"; | |
| } | |
| $data .= "</td>"; | |
| $data .= "</tr>"; | |
| } | |
| } | |
| $data .= "</tbody></body></html>"; | |
| file_put_contents('./NS-Check-'.$domain.'.html',$data); |
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