用rpm -qa | grep tftp 检查是否安装tftp服务器
如果没有。tftp：yum install tftp*（yum install xinetd tftp tftp-server）
Tftp的配置文件在 vi /etc/xinetd.d/tftp
修改tftpboot 的属性 chmod 777 -R tftpboot
修改下载路径；
重启：/etc/init.d/xinetd restart
检查tftp是否启动成功：netstat -a | grep tftp
在光盘上安装tftp服务器：
在centos的安装光盘中有RPM安装包，挂在光盘后进入到文件夹，找到相应的安装包。
]# cd /media/
[root@localhost media]# cd centos5-4\ i386\ DVD/
[root@localhost RHEL_5.1 i386 DVD]# ls
[root@localhost RHEL_5.1 i386 DVD]# cd Centos/
[root@localhost Server]# ls tftp*
tftp-0.42-3.1.i386.rpm tftp-server-0.42-3.1.i386.rpm
执行安装命令
[root@localhost Server]# rpm -ivh tftp-server-0.42-3.1.i386.rpm
warning: tftp-server-0.42-3.1.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
error: Failed dependencies:
xinetd is needed by tftp-server-0.42-3.1.i386
提示需要安装xinetd，找到安装包并安装
[root@localhost Server]# ls xinet*
xinetd-2.3.14-10.el5.i386.rpm
[root@localhost Server]# rpm -ivh xinetd-2.3.14-10.el5.i386.rpm
warning: xinetd-2.3.14-10.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:xinetd ########################################### [100%]
再执行安装TFTP命令
[root@localhost Server]# rpm -ivh tftp-server-0.42-3.1.i386.rpm
warning: tftp-server-0.42-3.1.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:tftp-server ########################################### [100%]
建立tftp的主工作目录
[root@localhost Server]# mkdir /tftpboot
修改配置文件
[root@localhost Server]# vi /etc/xinetd.d/tftp
主要注意修改的两个地方：
# default: off
# description: The tftp server serves files using the trivial file transfer \
# protocol. The tftp protocol is often used to boot diskless \
# workstations, download configuration files to network-aware printers, \
# and to start the installation process for some operating systems.
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot
disable = no
per_source = 11
cps = 100 2
flags = IPv4
}
重启服务
[root@localhost Server]# /etc/init.d/xinetd restart
Stopping xinetd: [FAILED]
Starting xinetd: [ OK ]
查看是否启动
[root@localhost Server]# netstat -a |grep tftp
udp 0 0 *:tftp