[mosh-devel] tried really hard...

Keith Winstein keithw at MIT.EDU
Wed Sep 5 01:25:02 EDT 2012

Hello Albert,

I didn't see the attached image at first. The issue is basically as
explained therein -- "Please verify that UDP port 60001 is not
firewalled and can reach the server."

On the server, try listening on a UDP port (e.g. run "nc -u -l 60001").

On the client, run "nc -u [servername] 60001".

Then try typing some lines into the client, and see if they show up on
the server. You need working UDP connectivity to use Mosh. If even nc
can't send data via UDP, there may be a firewall in the way that is
blocking UDP -- but this depends on your network setup.

Best regards, and hope this helps,

On Wed, Sep 5, 2012 at 1:17 AM, Keith Winstein <keithw at mit.edu> wrote:
> Hello Albert,
> How did you install the mosh-server binary on the server, and where did
> you put it?
> Try running "mosh [servername] --server=/full/path/to/mosh-server",
> replacing the pathname with the actual path to the mosh-server.
> To work by default, the mosh-server needs to be in your PATH when you
> remotely execute a command by ssh. Try running:
> $ ssh [servername] 'echo $PATH'
> If this doesn't contain the directory that holds your mosh-server, there's
> your problem.
> Please note that we have a binary package on our site
> (http://mosh.mit.edu) which installs mosh-client and mosh-server into
> /usr/bin. You might try this instead of trying to compile it yourself into
> /usr/local/bin.
> Best regards,
> Keith
> On Wed, 5 Sep 2012, Albert J. Menkveld wrote:
>> Hi there,
>> I really like the philosophy of your project.  And, got really excited
>> about its power.
>> However, after spending 3 hours on trying to get it to work and make
>> two Macs (Mountain Lion) machines talk (client and server) I finally
>> gave up.  ssh works fine.
>> I kept getting:
>> bash: mosh-server: command not found
>> Connection to host closed
>> /usr/local/bin/mosh: Did not find mosh server startup message.
>> And, followed all discussion and suggestions on your webpage and at
>> various google pointers.  The LANG issue is not its cause as locale on
>> both computers show "en_US.UTF-8" and trying to run with a --server
>> addition just gives me the attached screen.
>> Alas, I wish I could use the product.  :-(.
>> Cheers, Albert
>> --
>> Albert J. Menkveld
>> VU University Amsterdam
>> contact details:
>> http://www.albertjmenkveld.org/contact.html
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