Xinetd 无法远程 NMAP 回显服务器

Question

我已经配置了xinetd，我想远程访问echo服务。关键是，当 y 做：

nmap localhost

它出现

PORT     STATE SERVICE
 7/tcp    open  echo

但是当我做

nmap [远程 IP]

它没有出现

> PORT     STATE    SERVICE
21/tcp   open     ftp
23/tcp   open     telnet
80/tcp   open     http

我不知道为什么

这里是/etc/xinetd.d/echo

> service echo
{
        disable         = no
        type            = INTERNAL
        id              = echo-stream
        socket_type     = stream
        protocol        = tcp
        user            = root
        wait            = no
}

这里是/etc/xinetd.conf

# Simple configuration file for xinetd
#
# Some defaults, and include /etc/xinetd.d/
defaults {
# Please note that you need a log_type line to be able to use log_on_success
# and log_on_failure. The default is the following :
# log_type = SYSLOG daemon info
}
includedir /etc/xinetd.d

顺便谢谢！干杯！

Answer 1

我发现了错误：是我一直在使用错误的IP。谢谢大家