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Index › Programming Questions & Help › Syntax Questions › Cannot Create Server
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Cannot Create Server (Read 507 times)
frank26080115
Cannot Create Server
Nov 2nd, 2007, 11:27pm  
using the example code to start a server
I get

java.net.BindException: Permission denied
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.PlainSocketImpl.bind(Unknown Source)
at java.net.ServerSocket.bind(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at processing.net.Server.<init>(Server.java:53)
at Temporary_9826_8878.setup(Temporary_9826_8878.java:20)

java.lang.RuntimeException: Error inside Server.<init>()
at processing.core.PApplet.die(PApplet.java:2384)
at processing.core.PApplet.die(PApplet.java:2402)
at processing.net.Server.errorMessage(Server.java:227)
at processing.net.Server.<init>(Server.java:74)
at Temporary_9826_8878.setup(Temporary_9826_8878.java:20)
at processing.core.PApplet.handleDisplay(PApplet.java:1285)
at processing.core.PGraphics.requestDisplay(PGraphics.java:680)
at processing.core.PApplet.run(PApplet.java:1454)
at java.lang.Thread.run(Unknown Source)

i'm running Processing version 0125 beta on Ubuntu 7.10

i have created a semi-working proxy web server in Turing (http://compsci.ca/v3/viewtopic.php?p=147882&no=1#147882) but I need a more efficient and capable version
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JohnG
Re: Cannot Create Server
Reply #1 - Nov 2nd, 2007, 11:42pm  
Unless you're running as root, you'll be unable to start the serve ron any port below 1024.
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frank26080115
Re: Cannot Create Server
Reply #2 - Nov 3rd, 2007, 1:01am  
how do i do this without logging in as root?
i tried opening processing with sudo but it won't run
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fry
Re: Cannot Create Server
Reply #3 - Nov 3rd, 2007, 4:35pm  
use a port above 1024. because the code runs externally from processing, sudo prolly isn't gonna do it (are forked processes give sudo permissions? my guess would be no, though i'm not certain).

if you need to use a port that's lower (e.g. you're trying to implement a web server), i'd recommend using a higher port number to debug, then change the port number before you export the sketch to an application, and then run the exported application using sudo.
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