rz3dvp

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rz3dvp
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  • DIY downconverter

    http://195.222.165.118:8073/ my AirBand KiwiSDR with passive mixer (QTH near SVO airoport Moscow).
    KA7Ucathalferris
  • 2x KiwiSDR's on one real IP with same port

    Hello guys, I try published 2 KiwiSDR receiver with using one real IP and using same port (8073) with Raspberry Pi3 and Nginx.
    My topology:


    On first step I created 2 different domain name in DNS, on my example it's kiwi.mydomain.com and kiwi2.mydomain.com (A or CNAME) with my real IP address 142.93.129.90
    Second step, - on KiwiSDR1 configure SDR.hu registration to "Yes" and on connection add Next Kiwi URL redirect to http://kiwi2.mydomain.com:8073, on KiwiSDR2 configure SDR.hu registration to "No"
    Next step, - install and configure Nginx on Raspberry Pi3:
    • sudo apt update && sudo apt -y upgrade
    • sudo apt install -y nginx
    change Nginx config file (my example):
    • sudo nano /etc/nginx/sites-available/default
    upstream kiwi1 {
    server 192.168.1.3:8073;
    server 192.168.1.4:8073 backup;
    }

    upstream kiwi2 {
    server 192.168.1.4:8073;
    server 192.168.1.3:8073 backup;
    }

    server {
    listen 8073;
    server_name kiwi.mydomain.com;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header realip $remote_addr;

    location / {
    proxy_pass http://kiwi1;
    }
    }

    server {
    listen 8073;
    server_name kiwi2.mydomain.com;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header realip $remote_addr;

    location / {
    proxy_pass http://kiwi2;
    }
    }


    I use second KiwiSDR for backup main in upstreams for best site stability.

    Test configure: sudo nginx -t and if it's correct restart Nginx: sudo /etc/init.d/nginx restart, if you don't want close established connections you can use sudo /etc/init.d/nginx reload

    Final step, - published Raspberry Pi3 on router like one of the KiwiSDR and start for testing connection.

    The End :smile:

    Troubles:
    KiwiSDR see real IP of connected clients but don't use time limits for it:


    Maybe any ideas how fix it?

    PS you can start gzip compression on Nginx for low bandwidth connection.
    PSS off course you can use more than 2 KiwiSDR with simple correction of this config.
    Powernumpty
  • DIY downconverter

    http://195.222.165.118:8073/ my AirBand KiwiSDR with passive mixer (QTH near SVO airoport Moscow).
    KA7Ucathalferris