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!
");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 helloservice hello_server{disable = noflags = REUSEsocket_type = streamwait = nouser = rootserver = /tmp/hellolog_on_failure+=USERIDport = 9015}3.将新建的服务加到/etc/services里面去[root@linuxclient Desktop]# cat /etc/services |grep 9015hello_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 9015tcp        0      0 :::9015                     :::*                        LISTEN      2254/xinetd   6.测试：[root@linuxserver Desktop]# telnet 192.168.70.150 9015Trying 192.168.70.150...Connected to 192.168.70.150 (192.168.70.150).Escape character is '^]'.hello,buddy!Connection closed by foreign host.