环境：服务器A ：rhas11

客户机B： rhas101

首先用rpm –qa | grep tftp看一下tftp有没安装，没有的话安 装一下。

A：在服务器端设置

#vi /etc/xinetd.d/tftp

service tftp

{

disable = no

socket_type = dgram

protocol = udp

wait = yes

user = root

server = /usr/sbin/in.tftpd

server_args = -s /test

per_source = 11

cps = 100 2

flags = IPv4

}

#service xinetd restart 从启xinetd服务，因为TFTP服务受控与xinetd, xinetd是管服务的服务，它是不开端口的。

验证一下TFTP是否起来了：

[root@rhas11 tftp]# netstat -nlp

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 0.0.0.0:32768 0.0.0.0:* LISTEN 3122/rpc.statd

tcp 0 0 127.0.0.1:32781 0.0.0.0:* LISTEN 4035/xinetd

tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 3103/portmap

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3324/httpd

tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 3255/sshd

tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 3213/cupsd

tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3295/sendmail: acce

tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 3415/0

tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 3324/httpd

udp 0 0 0.0.0.0:32768 0.0.0.0:* 3122/rpc.statd

udp 0 0 0.0.0.0:69 0.0.0.0:* 4035/xinetd

udp 0 0 0.0.0.0:69 0.0.0.0:* 4012/in.tftpd

udp 0 0 0.0.0.0:111 0.0.0.0:* 3103/portmap

udp 0 0 0.0.0.0:754 0.0.0.0:* 3122/rpc.statd

udp 0 0 0.0.0.0:631 0.0.0.0:* 3213/cupsd

#cd /test

[root@rhas11 test]# ls -l

总用量 4

-rw-r--r-- 1 root root 19 5月 15 18:26 file

[root@rhas101 tmp]# tftp 172.31.0.11

tftp> get 1

Received 72 bytes in 0.0 seconds

tftp>

[root@rhas101 client]# ls -l

总用量 4

-rw-r--r-- 1 root root 15 5月 20 21:49 aaa

tftp> put aaa

Error code 1: File not found

tftp>

哦，原来服务器/test目录下没有文件aaa,那就touch一个吧

[root@rhas11 test]# touch aaa

[root@rhas11 test]# ls -l

总用量 4

-rw-r--r-- 1 root root 0 5月 15 18:46 aaa

-rw-r--r-- 1 root root 19 5月 15 18:26 file

[root@rhas101 client]# tftp 172.31.0.11

tftp> put aaa

Error code 1: File not found

tftp> put aaa

Error code 2: Access denied

tftp>

细心的读者一定想到这是权限问题

再到服务器上设置

(===========================================================================

小插曲：#chown -R nobody.nobody /test

#vi /etc/xinetd.d/tftp

service tftp

{

disable = no

socket_type = dgram

protocol = udp

wait = yes

user = nobody

server = /usr/sbin/in.tftpd

server_args = -u nobody -s /test

per_source = 11

cps = 100 2

flags = IPv4

}

chmod 777 -R /test

===========================================================================

)

[root@rhas11 test]# ls -l

总用量 4

-------rwx 1 root root 0 5月 15 18:46 aaa

-rw-r--r-- 1 root root 19 5月 15 18:26 file

tftp> put aaa

Error code 1: File not found

tftp> put aaa

Error code 2: Access denied

tftp> put aaa

Sent 16 bytes in 0.0 seconds

tftp>

在局域网环境中，如果有Cisco 路由器和Linux服务器。也许你需要利用Linux的

TFTP服务去下载Cisco router配置文件 startup-config,在服务器上编辑后再上载

到路由器，在实现中有一些特别注意的地方。

所用软、硬件：Redhat Linux AS 3.0 ，Cisco 2611 路由器

Address or name of remote host []? 172.31.0.11

Destination filename [beijing-confg]? beijing-route

!!

1968 bytes copied in 0.581 secs (3387 bytes/sec)

BEIJING#copy tftp flash

Address or name of remote host []? 172.31.0.11

Source filename []? beijing-route

Destination filename [beijing-route]?

Accessing tftp://172.31.0.11/beijing-route...

Erase flash: before copying? [confirm]

Erasing the flash filesystem will remove all files! Continue? [confirm]

Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased

Erase of flash: complete

Loading beijing-route from 172.31.0.11 (via FastEthernet0/0): !

[OK - 1968 bytes]

1968 bytes copied in 0.285 secs (6905 bytes/sec)

BEIJING#  

用tftp传输大文件时的带宽显示情宽