Via (presque) SebSauvage :D

In many cases it can become cumbersome to transfer files to and from a droplet. Imagine a development usage scenario where you are coding apps remotely and find yourself uploading a script repeatedly to your virtual server to test. This can become quite a hassle in a very short period of time. Luckily there is a way to mount your VPS file system to your local computer so you can make changes on the fly and treat your droplet as local storage. In this article, we will show you how to do exactly that.

Ce site recense énormément de films pour enfants. Il indique pour chaque film un âge conseillé en fonction des thèmes abordés et des éventuelles scènes difficiles.

http://www.adayinthelifeof.nl/2010/07/30/creating-a-traceroute-program-in-php/

define ("SOL_IP", 0);
define ("IP_TTL", 2);    // On OSX, use '4' instead of '2'.

$dest_url = "www.google.com";   // Fill in your own URL here, or use $argv[1] to fetch from commandline.
$maximum_hops = 30;
$port = 33434;  // Standard port that traceroute programs use. Could be anything actually.

// Get IP from URL
$dest_addr = gethostbyname ($dest_url);
print "Tracerouting to destination: $dest_addr\n";

$ttl = 1;
while ($ttl < $maximum_hops) {
    // Create ICMP and UDP sockets
    $recv_socket = socket_create (AF_INET, SOCK_RAW, getprotobyname ('icmp'));
    $send_socket = socket_create (AF_INET, SOCK_DGRAM, getprotobyname ('udp'));

    // Set TTL to current lifetime
    socket_set_option ($send_socket, SOL_IP, IP_TTL, $ttl);

    // Bind receiving ICMP socket to default IP (no port needed since it's ICMP)
    socket_bind ($recv_socket, 0, 0);

    // Save the current time for roundtrip calculation
    $t1 = microtime (true);

    // Send a zero sized UDP packet towards the destination
    socket_sendto ($send_socket, "", 0, 0, $dest_addr, $port);

    // Wait for an event to occur on the socket or timeout after 5 seconds. This will take care of the
    // hanging when no data is received (packet is dropped silently for example)
    $r = array ($recv_socket);
    $w = $e = array ();
    socket_select ($r, $w, $e, 5, 0);

    // Nothing to read, which means a timeout has occurred.
    if (count ($r)) {
        // Receive data from socket (and fetch destination address from where this data was found)
        socket_recvfrom ($recv_socket, $buf, 512, 0, $recv_addr, $recv_port);

        // Calculate the roundtrip time
        $roundtrip_time = (microtime(true) - $t1) * 1000;

        // No decent address found, display a * instead
        if (empty ($recv_addr)) {
            $recv_addr = "*";
            $recv_name = "*";
        } else {
            // Otherwise, fetch the hostname for the address found
            $recv_name = gethostbyaddr ($recv_addr);
        }

        // Print statistics
        printf ("%3d   %-15s  %.3f ms  %s\n", $ttl, $recv_addr,  $roundtrip_time, $recv_name);
    } else {
        // A timeout has occurred, display a timeout
        printf ("%3d   (timeout)\n", $ttl);
    }

    // Close sockets
    socket_close ($recv_socket);
    socket_close ($send_socket);

    // Increase TTL so we can fetch the next hop
    $ttl++;

    // When we have hit our destination, stop the traceroute
    if ($recv_addr == $dest_addr) break;
}

You need to be root. This means it probably is not going to work when running it from a web-server, you have to run it from the command line:

jthijssen@tarabas:~/traceroute$ sudo php traceroute.php
Tracerouting to destination: 199.6.1.164
  1   192.168.1.1      0.004 ms  192.168.1.1
  2   *                0.005 ms  static.kpn.net
  3   (timeout)
  4   139.156.113.141  0.005 ms  nl-asd-dc2-ias-csg01-ge-3-2-0-kpn.net
  5   195.190.227.221  0.005 ms  asd2-rou-1022.nl.euroringen.net
  6   134.222.229.105  0.005 ms  asd2-rou-1001.NL.eurorings.net
  7   134.222.97.186   0.007 ms  kpn-1402.xe-0-0-0.jun1.galilei.network.bit.nl
  8   213.154.236.75   0.012 ms  213.154.236.75
  9   199.6.1.164      0.012 ms  pub3.kernel.org

This is a traceroute to www.kernel.org. I’ve removed the second hop (because that’s the IP at my place). The 3rd hop returned a timeout. Probably the station there did not return a ICMP packet back to use.

The above code can be found on github: https://github.com/jaytaph/traceroute

Outils permettant de découper une vidéo postée sur Youtube

Une association qui œuvre pour faciliter la vie des écoliers dys.

Comparateur de wikis

Utilitaires pour la gestion d'un raspberry pie.

Pour se fabriquer des icones en svg.
Via Bronco. Merci l'ami ;)