ubuntu 下的tftp服务配置

配置eth0的 IP地址， 同时激活该设备。

#ifconfig eth0 192.168.1.10 netmask 255.255.255.0 up

1. Install tftpd and related packages.

$ sudo apt-get install xinetd tftpd tftp

2. Create /etc/xinetd.d/tftp and put this entry:

service tftp

{

disable =no

socket_type =dgram

protocol =udp

wait =yes

user =root

server =/usr/sbin/in.tftpd

server_args =-s /tftpboot

per_source = 11

cps = 1002

flags = IPv4

}

3. Make /tftpboot directory

$ sudo mkdir /tftpboot

$ sudo chmod 777 /tftpboot

把/etc/init.d/atfpd

文件中的if["$USE_INETD"="true"]中的true改为false

4. Start tftpd through xinetd

$ sudo /etc/init.d/xinetd restart

5. Testing. Tranfering file hda.txt from 192.168.1.100 (Client using tftp) to 192.168.1.100 (Server 192.168.1.100). Get an example file to transfer (eg. hda.txt)

$ touch /tftpboot/hda.txt

$ chmod 777 /tftpboot/hda.txt

$ ls -l /tftpboot/

total 0

-rwxrwxrwx 1 davids davids 0 2006-03-27 23:04 hda.txt

$ tftp 192.168.1.100

tftp> put hda.txt

Sent 722 bytes in 0.0 seconds

tftp> quit

$ ls -l /tftpboot/

total 4

-rwxrwxrwx 1 davids davids 707 2006-03-27 23:07 hda.txt
http://hi.baidu.com/wwwkljoel/blog/item/af42f612ade9905bf919b856.html
[注意事项]

如果从tftp服务器下载失败，

要确保服务器的根目录有可执行的权限。

$ chmod -R 777 tftp

使用中发现能正常下载文件，

$ tftp 192.168.1.222

tftp> get zImage

Received 1692890 bytes in 0.2 seconds

可是上传文件不成功，

提示错误：

tftp> put dic.txt

Error code 2: Access violation

求助于google, 得下面一段说明，问题解决。

The tftp man page says:

Because there is no user-login or validation within the TFTP

protocol, the remote site will probably have some sort of

file-access restrictions in place. The exact methods are

specific to each site and therefore dif ficult to document here.

So apparently the site you're trying to get the file from has some

kind of access restrictions in place. Take a look at the tftpd man

page on the remote host. The linux tftpd manual says, in part, "Due to

the lack of authentication information, tftpd will allow only publicly

readable files to be accessed. Files may be written only if they

already exist and are publicly writable."

上面主要意思就是: tftp服务器缺少必要的身份验证，

所以默认只允许下载文件，要上传文件，必须是服务器中已存在同名的文件，

且该文件权限允许被覆盖。

所以首先在服务中创建一个与要上传的文件同名的文件，并更改权限。

$ touch dic.txt

$ chmod 777 dic.txt

重新上传，成功。

tftp> put dic.txt

Sent 13770 bytes in 0.0 seconds