xinetd被动服务唤醒

rsync设置：

1.打开rsync控制开关(修改文件 /etc/default/rsync）
2.sudo cp /usr/share/doc/rsync/examples/rsyncd.conf /etc
3.修改 /etcrsyncd.conf
4.服务重启

xinetd

extended internet daemon 网络守护进程服务程序

  service rsync
    {
        disable         = no
        socket_type     = stream
        wait            = no
        user            = root
        server          = /usr/bin/rsync
        server_args     = --daemon
        log_on_failure  += USERID
    }

前提：关掉防火墙

1.自定义一个服务（别忘了要编译）：
[root@linuxclient Desktop]# cat /tmp/hello.c 
#include<stdio.h>
int main(){
printf("hello,buddy!\n"); return 0; } 2.在xinetd.d里面新添加一个文件，名叫hello_server [root@linuxclient Desktop]# cat /etc/xinetd.d/hello_server #cp telnet hello #vim hello service hello_server { disable = no flags = REUSE socket_type = stream wait = no user = root server = /tmp/hello log_on_failure+=USERID port = 9015 } 3.将新建的服务加到/etc/services里面去 [root@linuxclient Desktop]# cat /etc/services |grep 9015 hello_server 9015/tcp

类似： 

 4.重启xinetd服务 5.查看9015是否开启 [root@linuxclient Desktop]# netstat -tnlp|grep 9015 tcp 0 0 :::9015 :::* LISTEN 2254/xinetd 6.测试： [root@linuxserver Desktop]# telnet 192.168.70.150 9015 Trying 192.168.70.150... Connected to 192.168.70.150 (192.168.70.150). Escape character is '^]'. hello,buddy! Connection closed by foreign host.