# Scan for servers
**URL:** https://discourse.processing.org/t/scan-for-servers/21814
**Category:** Libraries
**Created:** [June 12, 2020, 6:05pm UTC](https://discourse.processing.org/t/scan-for-servers/21814 "2020-06-12T18:05:00Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Moritz](https://discourse.processing.org/u/Moritz)
#### Post date: [June 12, 2020, 6:05pm UTC](https://discourse.processing.org/t/scan-for-servers/21814/1 "2020-06-12T18:05:00Z")
Hey Guys,
I’m using the Processing network library and want to search for possible Processing servers. How is that possible?
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [June 12, 2020, 8:58pm UTC](https://discourse.processing.org/t/scan-for-servers/21814/2 "2020-06-12T20:58:11Z")
Hello,
I had some success with this:
> **[Real's How-to](https://www.rgagnon.com/javadetails/java-0093.html)**
>
> Real's HowTo : Useful code snippets for Java, JS, PB and more
> **Minimal code to get you started \< Expand this!**
>
> ```auto
> import java.io.*;
> import java.net.*;
> boolean state = false;
>
> void setup()
> {
> try
> {
> InetAddress address = InetAddress.getByName("192.168.1.100");
> //System.out.println("Name: " + address.getHostName());
> //System.out.println("Addr: " + address.getHostAddress());
> state = address.isReachable(3000);
> System.out.println("Reach: " + state);
> }
> catch (UnknownHostException e)
> {
> System.err.println("Unable to lookup...");
> }
> catch (IOException e)
> {
> System.err.println("Unable to reach...");
> }
> }
>
> ```
You can write the rest to scan IPs.
Not so much (slow) with this:
> **[Processing 2.x and 3.x Forum](https://forum.processing.org/two/discussion/6103/check-internet-connection)**
>
> Processing is an electronic sketchbook, a language and a worldwide community. This is its forum.
I also had to run Processing as “administrator” to ping.
I just included as a reference.
That was fun!
I can use this in future…
`:)`
---
### Author:  [@Moritz](https://discourse.processing.org/u/Moritz)
#### Post date: [June 12, 2020, 9:28pm UTC](https://discourse.processing.org/t/scan-for-servers/21814/3 "2020-06-12T21:28:00Z")
Thank you.
But there is another question from me. Is it possible to find all servers with the same IP address (different ports) without pinging each port?
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [June 12, 2020, 10:11pm UTC](https://discourse.processing.org/t/scan-for-servers/21814/4 "2020-06-12T22:11:27Z")
Hello,
I branched off on a tangent with my answer and it only finds reachable IP’s.
I don’t have an answer for ports at this time and would have to seek one.
Back to work and busy these days…
Keep looking!
And I am back already!
I did find this:
>
And so far got this and it did detect an active server port:
I got a “false” if I looked for a port “12347” that was not active.
Using the server example:
I may explore this more later…
It is my first time exploring this also.
`:)`