do not add newline after plain IP output

add CNAME output to standard list
change domain nandus.net -> snapdns.eu
2025-01-08 22:38:16 +01:00 · 2024-03-10 16:24:15 +01:00 · 2024-03-10 16:18:32 +01:00 · 2023-06-14 13:39:19 +02:00 · 2023-05-24 11:08:18 +02:00 · 2020-06-22 18:04:35 +02:00
5 changed files with 47 additions and 17 deletions
--- a/.htaccess
+++ b/.htaccess
@@ -8,3 +8,6 @@ RewriteRule ^([^/]+)/?$ /index.php?m=$1 [L]
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule ^([^/]+)/([^/]+)/?$ index.php?m=$1&t=$2 [L]
+
+# Hide .git on webserver
+RedirectMatch 404 /\.git
--- a/README.md
+++ b/README.md
@@ -4,18 +4,18 @@ A simple PHP script to tell a visitor's IP address and more information. This fi

 ## Plain return

-Example: [/][https://ip.nandus.net]
+Example: [/][https://ip.snapdns.eu]

 When the script is properly installed, one can visit/curl/wget the website to just receive one's public IP address. This is very useful in combination with other scripts (check out my snap-dyndns packages for example).

 ```
-max@laptop ~> wget -qO - ip.nandus.net
+max@laptop ~> curl -Ls ip.snapdns.eu
 91.62.68.1
 ```

 ## Detailed return

-Example: [/myself](https://ip4.nandus.net/myself)
+Example: [/detailed](https://ip4.snapdns.eu/detailed)

 Given the location of the script is `ip.example.com`, you can also receive more information about the HTTP headers or the IP's reverse lookup:

@@ -27,7 +27,7 @@ HTTP_CLIENT_IP:
 HTTP_X_FORWARDED:
 HTTP_FORWARDED_FOR:
 HTTP_FORWARDED:
-HTTP_HOST: ip4.nandus.net
+HTTP_HOST: ip4.snapdns.eu
 HTTP_URI:

 HOSTNAME: p5B3E4401.dip0.t-ipconnect.de
@@ -38,8 +38,8 @@ Additionally you will be given a whois output of your IP.

 ## Custom DNS and IP lookup

-Example DNS: [/dns/example.com](https://ip.nandus.net/dns/example.com)
-Example IP: [/ip/8.8.8.8](https://ip.nandus.net/ip/8.8.8.8)
+* Example DNS: [/dns/example.com](https://ip.snapdns.eu/dns/example.com)
+* Example IP: [/ip/8.8.8.8](https://ip.snapdns.eu/ip/8.8.8.8)

 You can also freely look up any hostname or IP. For domains, this will return a useful list of different DNS records (A, AAAA, NS, MX, TXT, SOA etc).

--- a/config.php.sample
+++ b/config.php.sample
@@ -1,8 +1,8 @@
 <?php

 return (object) array(
-    'ip4domain' => 'ip4.nandus.net',
-    'ip6domain' => 'ip6.nandus.net',
+    'ip4domain' => 'ip4.snapdns.eu',
+    'ip6domain' => 'ip6.snapdns.eu',
    'detailed_uri' => 'detailed',
 );

--- a/favicon.png
+++ b/favicon.png
--- a/index.php
+++ b/index.php
@@ -20,10 +20,11 @@ if(empty($_GET)) {

 if($method === "simple") {  // simple
  $ip = $_SERVER['REMOTE_ADDR'];
-  echo $ip . "\n";
+  echo $ip;
  exit;
 } elseif($method === "myself" ) {  // detailed info about own IP
  $ip = $_SERVER['REMOTE_ADDR'];
+  print_header();
  show_http_headers();
  show_hostname($ip);
  show_reverse($hostname);
@@ -31,12 +32,14 @@ if($method === "simple") {  // simple
  show_whois($ip);
 } elseif($method === "ip" ) {  // detailed info an IP
  $ip = $t;
+  print_header();
  show_hostname($ip);
  show_reverse($hostname);
  show_ipinfo($ip);
  show_whois($ip);
 } elseif($method === "dns" ) {  // detailed info a host name
  $hostname = $t;
+  print_header();
  show_reverse($hostname);
  show_dnsrecords($hostname);
  show_whois($hostname);
@@ -45,7 +48,7 @@ if($method === "simple") {  // simple
  header("Location:/".$config->detailed_uri."");
  exit;
 }
-footer();
+print_footer();

 // HTTP HEADERS
 function show_http_headers() {
@@ -92,7 +95,7 @@ function show_whois($target) {
    preg_match('/[a-zA-Z\d\-]+\.[a-zA-Z\d]+$/', $target, $m);
    $target = $m[0];
  }
-  $whois = shell_exec("whois " . $target  );
+  $whois = shell_exec("timeout 5 whois " . $target  );
  echo "<pre>"; print_r($whois); echo "</pre>";
  echo "<br />\n";
 }
@@ -111,6 +114,12 @@ function show_dnsrecords($hostname) {
    echo "<strong>" . $value['type'] . "</strong>: ";
    echo link_target($value['ipv6']) . "<br />\n";
  }
+  // CNAME
+  $dnsrecords = dnsrecords($hostname, "DNS_CNAME");
+  foreach($dnsrecords as $key=>$value) {
+    echo "<strong>" . $value['type'] . "</strong>: ";
+    echo link_target($value['target']) . "<br />\n";
+  }
  // MX
  $dnsrecords = dnsrecords($hostname, "DNS_MX");
  foreach($dnsrecords as $key=>$value) {
@@ -151,13 +160,26 @@ function show_dnsrecords($hostname) {
    echo "<br />\n";
  }
 }
+// PRINT HEADER
+function print_header() {
+  print '<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<title>IP and DNS information</title>
+<link rel="icon" type="image/png" href="/favicon.png">
+</head>
+<body>
+';
+}
 // PRINT FOOTER
-function footer() {
+function print_footer() {
  global $config;
  echo "<br /><hr /><br />\n";
  echo 'Your plain IP address: <a href="//'.$config->ip4domain.'">IPv4</a> | <a href="//'.$config->ip6domain.'">IPv6</a>';
  echo "<br />\n";
  echo 'Your detailed IP info: <a href="//'.$config->ip4domain.'/'.$config->detailed_uri.'">IPv4</a> | <a href="//'.$config->ip6domain.'/'.$config->detailed_uri.'">IPv6</a>';
+  echo '</body></html>';
 }

 // HELPER FUNCTIONS
@@ -173,12 +195,17 @@ function ip2hostname($ip) {
  return $hostname;
 }
 function hostname2ip($hostname) {
+  $ipsbyhostname = gethostbynamel($hostname);
+  if($ipsbyhostname === false) {
+    $ip = $hostname;
+  } else {
    $ip = implode(', ', gethostbynamel($hostname));
+  }
  return $ip;
 }
 function dnsrecords($hostname, $record = "DNS_ALL") {
  if($record === "OTHER") {
-    $dnsrecords = dns_get_record($hostname, DNS_ALL - DNS_A - DNS_AAAA - DNS_MX - DNS_NS - DNS_TXT - DNS_SOA);
+    $dnsrecords = dns_get_record($hostname, DNS_ALL - DNS_A - DNS_AAAA - DNS_MX - DNS_CNAME - DNS_NS - DNS_TXT - DNS_SOA);
  } else {
    $dnsrecords = dns_get_record($hostname, constant($record));
  }
Author	SHA1	Message	Date
Max Mehl	b7d78e7561	do not add newline after plain IP output	2025-01-08 22:38:16 +01:00
Max Mehl	d757e632d8	add CNAME output to standard list	2024-03-10 16:24:15 +01:00
Max Mehl	1d759d2e44	change domain nandus.net -> snapdns.eu	2024-03-10 16:18:32 +01:00
Max Mehl	d8aba80029	make .git inaccessible via web	2023-06-14 13:39:19 +02:00
Max Mehl	6109429b21	handle case if there is no hostname	2023-05-24 11:08:18 +02:00
max.mehl	9ec952236f	add timeout for whois	2020-06-22 18:04:35 +02:00
mxmehl	90be3e54b9	Merge branch 'dev'	2018-01-05 13:23:14 +01:00
mxmehl	69c1411c98	use correct language tag	2018-01-05 13:21:11 +01:00
mxmehl	504586a033	use valid html	2018-01-05 13:19:53 +01:00
mxmehl	a720d581d5	rename function names	2018-01-05 13:17:35 +01:00
mxmehl	e5f6c39224	fix syntax	2018-01-05 13:14:20 +01:00
mxmehl	6cf4ef1237	add html header and favicon	2018-01-05 13:13:06 +01:00