TFTP服务器的安装

利用以下命令就可以看到TFTP服务器已启动，则不用安装

[root@localhost Server]# netstat -a |grep tftp
udp        0      0 *:tftp                      *:*    　　

　　若没有安装，在Redhat Enterprise Linux 5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。

[root@localhost user]# cd /media/
[root@localhost media]# ls
RHEL_5.1 i386 DVD
[root@localhost media]# cd RHEL_5.1\ i386\ DVD/
[root@localhost RHEL_5.1 i386 DVD]# ls
[root@localhost RHEL_5.1 i386 DVD]# cd Server/

[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                      *:*