SOLVED: tftpd server can be accessed by some devices

Kernels & Hardware, configuring network, installing services

SOLVED: tftpd server can be accessed by some devices

Postby cainram » 2020-01-17 17:12

SOLVED: uh..... Turns out it was a case sensitivity thing. Everything is working. Thanks to everyone that took a look

I have a FusionPBX server running Debian. I have configured /etc/xinetd.d/tfpt as follows:

service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = nobody
server = /usr/sbin/in.tftpd
server_args = -s /tftpdata
disable = no
}

I had to comment out a line in inetd.conf (I think) to get it working.
I had to add a line to my firewall to allow traffic to port 69.
The server is on a static public IP.
I CAN use the terminal tftp client on an ubuntu machine on my local network to download files from the Debian tftp server.
I cannot download files using tftp client (command line) on my Windows machine.
I CAN download files using TFTPd64 gui on another Windows machine
I cannot get my Cisco phone to provision via tfpt. Same phone has no issues with other tftp servers. <--This is my major concern.

What may I be missing? I'm all ears, thanks in advance
Last edited by cainram on 2020-01-21 16:25, edited 1 time in total.
cainram
 
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Re: tftpd server can be accessed by some devices, not others

Postby p.H » 2020-01-18 09:53

TFTP is a bit like FTP, it uses other ports than 69 for file transfer. Netfilter connection tracking has a specific helper to identify data packets in the RELATED state.
p.H
 
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Re: tftpd server can be accessed by some devices, not others

Postby cainram » 2020-01-20 17:52

Thanks for the reply. I guess the question really is... Why some OSs or clients can consistently download from the server and others never can...
cainram
 
Posts: 3
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Re: tftpd server can be accessed by some devices, not others

Postby cainram » 2020-01-21 15:27

Update: Ok, turns out the Windows devices I was having issues with were related to the internal Windows firewall. I can now download files from my Debian based tftp server from everything I have thrown at it EXCEPT this CISCO phone. Looks like I'm heading to the CISCO forums unless anyone has more to offer. Thanks to everyone that took a look.
cainram
 
Posts: 3
Joined: 2020-01-17 17:03


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