Re: [CentOS 5] tftp-server, unable to create new files (even with "-c" option)

Davide Grandis <davide.grandis@xxxxxxxxxxxxx> · Fri, 14 Sep 2007 00:03:16 +0200

Hi Grant,

No luck again with the w/a you provided.

Here is the result of more investigation:

1) disabled (disable = yes) in /etc/xinetd.d/tftp

2) reboot or just "service xinetd restart"

3) run in.tftpd

Writing to a new file still fails. This is what I discovered from /var/log/messages:

Sep 13 23:56:39 chl1 xinetd[2301]: START: tftp pid=3036 from=10.58.2.159

That is, xinetd automatically starts TFTP when a TFTP request comes in. 10.58.2.159 in fact is the IP address of the switch from which I'm trying to TFTP-ing.

Checking the processes it turns out that:

[root@chl1 log]# ps -ef | grep tftp
root      3014  2813  0 23:55 pts/2    00:00:00 ./in.tftpd -c -v -u root -s /tftpboot
root      3036  2301  0 23:56 ?        00:00:00 in.tftpd -s /tftpboot
root      3043  2888  0 23:57 pts/3    00:00:00 grep tftp
[root@chl1 log]# 

two tftpd are running. Apparently the one responding is the one w/o the '-c' option!!!

Can someone please explain to me why xinetd is starting tftp, even if disabled!?!?!?

Thanks,
Davide

On Sep 13, 2007, at 7:52 PM, Grant McChesney wrote:

On 9/13/07, Davide Grandis <davide.grandis@xxxxxxxxxxxxx> wrote: Hi Grant,

Thanks for the support.

I had this same problem when trying to back up my switch configs.  After some googling, I found a workaround for RH-based systems.  The workaround is disable tftp in xinetd, and run in.tftpd manually.  I never figured out why it would not work with xinetd. 

May I ask you to tell me the detailed steps to achieve that... I'm an absolute beginner! :-)

Thanks again,
Davide

Here's the post about this problem on fedora forum:
 http://forums.fedoraforum.org/archive/index.php/t-109735.html

Here's the ugly workaround:

In /etc/xinetd.d/tftp, set disable  = yes
Restart xinetd (/etc/init.d/xinetd restart)
Run in.tftpd (for example, "/usr/sbin/in.tftpd -l -c -v -u root -s /tftpboot") 
You can add the previous command to /etc/rc.local to make it start on boot.
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