Re: F28 problems with tftp server firewall permissions

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On 1/23/19 12:50 PM, Robert Moskowitz wrote:
I can get files from a local terminal window with:

tftp localhost -cv file

I had problems with put until I saw that the file had to preexist. I did that with touch file on my system.

From a F24 notebook on the same subnet as the one running tftp server, though I cannot get the file.  I get:

Transfer timed out.

I also tried:

firewall-cmd --add-port=69/udp --permanent

but no different.

I don't see anything in the tftp.service file to indicate anything there.

What am I missing?

IIRC, tftp (like non-passive FTP) is one of those ancient, firewall-
unfriendly protocols.  I think that the server actually initiates the
connection to the client for the actual transfer.

For a quick test, you'll need to adjust the firewall rules (or disable
it altogether) on the *client*.  Note that this shouldn't be an issue
for your switches, as they won't be blocking the transfer traffic.

HTH

--
========================================================================
Ian Pilcher                                         arequipeno@xxxxxxxxx
-------- "I grew up before Mark Zuckerberg invented friendship" --------
========================================================================
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