![]() The rsync_with_server.sh script wraps the basic functionality of running rsync a single time. Here is the rsync script that syncs wifi data between Raspberry Pis and the remote server: Sending daemon args: -server -sender -vvde.Lsfx. Opening tcp connection to localhost port 873 If the server is listening you should get a simple success message back: This is where stunnel is listening and forwarding traffic between the client and server. This runs rsync and connects to the server at localhost (since no host is specified, it defaults to 873). You can check the local rsync port is being mapped correctly to the remote rsync daemon/server by running: The rsync server should appear to be a local service on port 873. Stunnel takes care of the rest, so the rsync daemon on the remote server appears to be just another local service. When you are on the client, you can just run rsync from the command line, and pass it the location of the rsync server (which is localhost port 873). The client does not need to run the rsync daemon, only the server does. The rsync daemon running on the remote server will take care of the rest. All we have to do is point the rsync client to the rsync server, and specify one of the modules in our configuration file. No special rsync setup is needed for the client. Behind the scenes, stunnel will transparently map that port to a remote rsync daemon/server, so it will appear to the rsync client that it is communicating with a local rsync daemon/server. The client's rsync will operate, as usual, on local port 873. This describes the client configuration required to get rsync working over stunnel. $ iptables -A FORWARD -p tcp -j ACCEPT -dport 273 -m state -state NEW $ iptables -A INPUT -p tcp -dport 273 -j ACCEPT Need to open firewall to incoming connections on the stunnel rsync port (273): Note that you still won't be able to reach your stunnel server from the outside until you expose the port with iptables. If you set foreground = yes in the config file, the console will display the contents of the log. Check the log to make sure stunnel is running okay. Errors may be printed to the screen, or stunnel may fail silently. Server nf file for rsync over port 443:Ĭert = /etc/stunnel/įire up stunnel with the stunnel command: Note these require the rsync service to be defined following the above steps. The stunnel configuration file will accept connections on 443 and connect them to port 873. The stunnel connection we will set up will be over port 443. Stunnel Server for Rsync Configure Stunnel Server for Rsync Where A.B.C.D is the server's IP address.) (Optional: may need to add this to /etc/hosts.allow but this messed things up for me: Ssyncd 443/tcp # secure rsync over stunnel 443 Rsync is tcp traffic, so define new rsync protocol over port 443.Īdd the following line to the server's /etc/services (match it exactly): Get the docker file, edit the config file, run the build script, then run the run script: Adding Tcp Wrappers for Secure Rsync Protocol ![]() See nf in above repo.Īlso set the bind address to be the local host only (since stunnel takes care of the external connection): Run an rsync daemon to listen (locally) for rsync requests (these will come from stunnel). Setting up rsync server config (which dir to rsync to).2.3 Forever Loop: Listening for Client Changes. ![]()
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