Databases
StackOverflow2013
Postsdbo
POHow do I send data between two computers over the internet
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow do I send data between two computers over the internet
    primarykey
    data
    text
    <p>I have been struggling with this for the entire day now, I hope somebody can help me with this.</p> <p>My problem is fairly simple: I wish to transfer data (mostly simple commands) from one PC to another over the internet. </p> <p>I have been able to achieve this using sockets in Java when both computers are connected to my home router. I then connected both computers to the internet using two different mobile phones and attempted to transmit the data again. I used the mobile phones as this provides a direct route to the internet and if I use my router I have to set up port forwarding, at least, that is how I understand it.</p> <p>I think the problem lies in the method that I set up the client socket. I used: </p> <pre><code>Socket kkSocket = new Socket(ipAddress, 3333); </code></pre> <p>where ipAddress is the IP address of the computer running the server. I got the IP address by right-clicking on the connection, status, support. Is that the correct IP address to use or where can I obtain the address of the server? Also, is it possible to get a fixed name for my computer that I can use instead of entering the IP address, as this changes every time I connect to the internet using my mobile phone?</p> <p>Alternatively, are there better methods to solving my problem such as using http, and if so, where can I find more information about this?</p> <p><strong>EDIT:</strong> Would it be possible to have the server program running on a server on the internet somewhere. My original server would then be a client that send information to this server. This server would then pass this information to my original client and vice versa. That way, the IP address of my computer won't matter, as I only need to know the address of the server hosted somewhere on the web. Does this seem like a better solution? Where do I begin implementing such a solution? </p> <p>Thanks!</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJohan
    1. USJohan
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow do I send data between two computers over the internet
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POHow do I send data between two computers over the internet
      1. This table or related slice is empty.
      1. VTUpMod
    1. COYour question has more to do with management of internet protocols and communications settings rather than programming. It would be better asked at ServerFault.com. Btw, your problem is multi-layered. It's fairly easy to get going on a home or even company network but when you get into the wild you have to account for firewalls, DNS, ISPs (which often do not allow server traffic) etc. If you want to code at the socket level, you will definitely have to learn TCP/IP inside out. No escaping it.
      singulars
      1. POHow do I send data between two computers over the internet
      1. USPaul Sasik
    2. CORegarding the strategy discussed in your edit. There's a dead-easy way to get started: [Google App Engine](http://code.google.com/appengine/). You have to learned a tiny bit about servlets and a tiny bit about Google-specific data stores, but total work should be less than an hour.
      singulars
      1. POHow do I send data between two computers over the internet
      1. USMalvolio
    3. CO@Malvolio. Thanks, that sounds like a great idea. Would it be much more difficult if I create my own server that does this than using the google app engine?
      singulars
      1. POHow do I send data between two computers over the internet
      1. USJohan
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload