topic howto configure tftp server to send files in Operating System - Linux

howto configure tftp server to send files

'chris' — Tue, 17 Aug 2004 18:44:24 GMT

hi

howto configure tftp server to send files ?

tftp config file looks:
------------------------------------------
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot
}
------------------------------------------

I can get files from tftp server without problems,
but cannot put any files to the server.

tftpboot diretory is already chmod to 777

I have linux SUSE 8.2 installed.

kind regards
chris

Re: howto configure tftp server to send files

Stuart Browne — Tue, 17 Aug 2004 18:52:40 GMT

Have you created stub-files for those you are trying to put?

To put files to a 'tftp' server, the file has to already exist. You can't put files which don't.

It's just the way tftp works.

The man page for 'tftpd' SECURITY section reads:

The use of TFTP services does not require an account or password on the server system. Due to the lack of authentication information, tftpd will allow only publicly readable files (o+r) to be accessed, unless the -p option is specified. Files may be written only if they already exist and are publicly writable, unless the -c option is specified. Note that this extends the concept of ``public'' to include all users on all hosts that can be reached through the network; this may not be appropriate on all systems, and its implications should be considered before enabling TFTP service.

Re: howto configure tftp server to send files

'chris' — Tue, 17 Aug 2004 19:10:06 GMT

I've tried but still doesn't work:

# tftp 192.168.0.1
tftp> binary
tftp> put file.exe
Error code 2: Access denied
tftp> get file.exe
Received 1129632 bytes in 0.9 seconds
tftp> put file.exe
Error code 2: Access denied

greetings
chris

Re: howto configure tftp server to send files

Stuart Browne — Tue, 17 Aug 2004 20:17:37 GMT

What are the file permissions on '/tftpboot/file.exe' ?

Re: howto configure tftp server to send files

Alexander Chuzhoy — Wed, 18 Aug 2004 00:43:11 GMT

make the line srever_args to appear like this:
server_args = -s -c /tftpboot

you should add -c which adds the ability to create files under the /tftpboot folder.....

Best regards...

Re: howto configure tftp server to send files

'chris' — Wed, 18 Aug 2004 03:47:19 GMT

thanks !

with:

server_args = -s -c /tftpboot

works perfectly.

greetings
chris