On the server machine, pick an unused port number (TODO: how to use netstat to confirm port is not in use), and tell netcat to listen on that port number. In the examples below, svr is the server machine you're trying to connect to, and cli is the client machine. The goal is to use it to try to confirm packets can traverse your network. Netcat is a utility to send and receive data over a network. One way to debug this is with the netcat utility (sometimes called nc). This, and other similar messages, indicate some type of network problem that is preventing mosh-client and mosh-server from exchanging packets. Note: be sure to check both the client and the server! Nothing received from server on UDP port 60001 Since mosh expects to read something from stdout, this can get confuse mosh). bashrc, etc) that prints things when a new shell is launched. One common problem is a dot file (.cshrc. Ssh -S none -o Prox圜ommand='mosh -fake-proxy - %h %p' -n -tt - 'mosh-server new' When there are problems remotely running the mosh-server process, it can appear that mosh hangs, exits immediately without doing anything, or other non-descriptive failure modes. This page attempts to list some common issues you might see with mosh, and some steps to debug them. If mosh-client never receives a reply from its initial packet, it will exit with the message "mosh did not make a successful connection to host: port" Debugging One mosh-server receives the UDP packet, it will know where to send the reply (since all incoming packets contain the IP address of the sender). It will be a UDP packet sent to the remote machine on a port specified by mosh-server. The very first packet sent will come from mosh-client. The mosh wrapper script has the responsibility of using ssh to connect to a remote machine, start mosh-server on the remote machine, gather the necessary connection information (encryption key and remote IP), and then finally starting mosh-client. A third component is the mosh wrapper script, which is what you will use to start mosh-client and mosh-server. There are two primary components to mosh: mosh-client and mosh-server. If you have having problems getting mosh to run, knowing a little bit about how it works can be very helpful.
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