修改tftp 内容
# cd /etc/xinetd.d/
[root@localhost xinetd.d]# cp tftp tftp.bak
[root@localhost xinetd.d]# cat tftp
# 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 /var/lib/tftpboot
disable = yes
per_source = 11
cps = 100 2
flags = IPv4
}
[root@localhost xinetd.d]# cat -n tftp
1 # default: off
2 # description: The tftp server serves files using the trivial file transfer \
3 # protocol. The tftp protocol is often used to boot diskless \
4 # workstations, download configuration files to network-aware printers, \
5 # and to start the installation process for some operating systems.
6 service tftp
7 {
8 socket_type = dgram
9 protocol = udp
10 wait = yes
11 user = root
12 server = /usr/sbin/in.tftpd
13 server_args = -s /var/lib/tftpboot
14 disable = yes
15 per_source = 11
16 cps = 100 2
17 flags = IPv4
18 }
[root@localhost xinetd.d]# sed -i ‘14s/yes/no/‘ tftp
[root@localhost xinetd.d]# cat -n tftp
1 # default: off
2 # description: The tftp server serves files using the trivial file transfer \
3 # protocol. The tftp protocol is often used to boot diskless \
4 # workstations, download configuration files to network-aware printers, \
5 # and to start the installation process for some operating systems.
6 service tftp
7 {
8 socket_type = dgram
9 protocol = udp
10 wait = yes
11 user = root
12 server = /usr/sbin/in.tftpd
13 server_args = -s /var/lib/tftpboot
14 disable = no
15 per_source = 11
16 cps = 100 2
17 flags = IPv4
18 }
[root@localhost xinetd.d]# sed -i ‘14s/yes/no/‘ tftp
原文：https://www.cnblogs.com/xuanbjut/p/12945343.html