Remote debug displays message "Error: That port is already in use."

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#1

Remote debugging used to work fine. Now when I try it, I get the message “Error: That port is already in use.”. I am debugging a Linux AWS machine from Win 7 running Komodo IDE 8. Komodo 7 does the same thing. I have tried both ports 9000 and 9001.

I have loaded the Komodo 8 remote debugging files onto the remote Linux machine. The command I am using on the remote machine is:
~/bin/pydbgp -d my_ip_address:9000 path/to/manage.py runserver --noreload 127.0.0.1:8080

#2

Can you check what is using those ports?

#3

sudo netstat -tulpn says that nothing is using 9000 or 9001:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:11211         0.0.0.0:*               LISTEN      1378/memcached  
tcp        0      0 127.0.0.1:8080          0.0.0.0:*               LISTEN      22542/apache2   
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      22531/nginx: master
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1432/sshd       
tcp        0      0 0.0.0.0:5432            0.0.0.0:*               LISTEN      22619/postgres  
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      1372/exim4      
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      22531/nginx: master
tcp6       0      0 :::22                   :::*                    LISTEN      1432/sshd       
tcp6       0      0 :::5432                 :::*                    LISTEN      22619/postgres  
udp        0      0 0.0.0.0:68              0.0.0.0:*                           1411/dhclient3
#4

Sorry my bad, you are using WIndows 7 as your dev machine and linux as the server. You need to do the port check on Windows. Try this - http://stackoverflow.com/questions/48198/how-can-you-find-out-which-process-is-listening-on-a-port-on-windows

#5

For port 9000, Resource Monitor shows only komodo:

Image	PID	Address	Port	Protocol	Firewall Status
komodo.exe	10104	IPv4 unspecified	9000	TCP	Allowed, not restricted
#6

And that’s while Komodo is not running? (ie. before starting Komodo, which would give you the “port in use” error)

#7

No. If I close Komodo, then nothing is using the port.

#8

But Komodo still gives you the error when you start it?

#9

With Komodo not running, nothing is using port 9000. After I start Komodo, it is using the port. Then when I run the debugger on the remote box, I get the error.

#10

Wait so are you seeing this error on the server or the client? (Linux or Win)

#11

Uh oh. You’re right. I wasn’t stopping apache before running the debugger. Sorry for the goose chase.