How can I get tftp server run on Redhat 9.0

frankli · 12-04-2003, 02:49 AM

I have installed tftp-0.32-4.rpm and tftp-server-0.32-4.rpm on my redhat9.0,and the tftp script in /etc/xinetd.d/tftp is like this.
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -c -s /tftpboot
disable = no
per_source = 11
cps = 100 2
}
I have two network card.one ip is 10.5.25.91,one ip is 192.168.0.1.I made a bridge between the two cards which named br0,the ip address is 192.168.1.1.I can ping 192.168.1.1 in a win2000 machine.so I put 1.txt in /tftpboot.I typed the command like this in win2000 command line:
tftp 192.168.11get 1.txt
but it always says time out.
when I type command in my redhat 9.0
tftp 192.168.1.1
tftp> get 1.txt
Transfer timed out.
Does anybody can tell me why and how to get it run?

iainr · 12-04-2003, 05:14 AM

Don't know, but here is my tftp file which works fine.

service tftp
{
disable = no
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /lts
per_source = 11
cps = 100 2
flags = IPv4
}

frankli · 12-04-2003, 06:40 PM

I changed my file like yours but it still did not work.I close my firewall and try again, still time out.I can see the udp/69 tftp by using nmap .So why ?I can't understand.

MartinN · 12-05-2003, 02:23 AM

I've just tried this. My tftp config file is not radically different from yours. I got it to work, both from another Linux machine and my Win2000 machine.

After editing the config file to turn on tftp, did you remember to restart xinetd? (/etc/rc.d/init.d/xinetd restart)

And the obvious question; did you open the firewalls? Both on Linux and Windows? I know, cause I've tried to contact the tftp server on a Linux machine with the firewall closed. There, I admitted it first, now it won't feel as bad for you if you've done what I did

Regards
Martin

MartinN · 12-05-2003, 02:33 AM

One more comment, sorry if I bore you.

If the tftp server is running (started by xinetd) then you will see it in the listing of processes.

Code:

~> ps -aux | grep tftpd
root      1771  0.0  0.2  1800  492 ?        S    09:16   0:00 in.tftpd -s /tftpboot
root      1806  0.0  0.3  3580  628 pts/0    S    09:29   0:00 grep tftpd

Regards
Martin

frankli · 12-06-2003, 01:50 AM

Thanks for your help.When I use a notebook to tftp my machines,I can see the lines like yours.So I'm sure that my tftpd is running.But when I use command "setup " to check my firewall,I saw something like this:
Security Level:High.I tried many times to change it to No firewall,but after I restart my machine I found it still High.So How can I close my firewall?

best regards

frankli · 12-06-2003, 03:58 AM

Now I can get it run correctly.The only change is "server_args "
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -c -s /tftphost
disable = no
per_source = 11
cps = 100 2
}
Thanks for your help!

rjwright · 12-13-2003, 02:21 PM

I am having a similar problem, I su to root and run
# /etc/xinetd.d/tftp
get permission denied

why is this happening I should be able to start the process as root right?
I think I am missing somthing, I havent looked at the firewall yet, would this be caused by the fire wall?

MartinN · 12-13-2003, 04:24 PM

The tftp daemon is started by xinetd. You need a line in your /etc/xinetd.d/tftp that reads
disable = no
(see the example files above)
then the tftpd should be automatically started by xinetd.

Regards
Martin

rjwright · 12-13-2003, 05:09 PM

I've gotten that far, but the tutorial I was reading (HOWTO Clone Disk Images on Linux Booted from a Network)
http://www.tldp.org/HOWTO/Clone-HOWTO/index.html
shows a cli
tftp>
it apears to be a command line interface and that is where I got lost,
I checked and it is running so how do I get this CLI?

rjwright · 12-13-2003, 05:11 PM

I forgot to install the client I missed that part oops
sorry

rjwright · 12-13-2003, 05:11 PM

I must be getting tired/ or lazy?

rjwright · 12-13-2003, 10:23 PM

works fine now