Ubuntu Manpage: inetd

inetd通常在系統啟動時由/etc/rc.local引導。 inetd會監聽指定internet端口是否有連接要求。 當發現有某個端口有連 接要求時，inetd將決定由哪個伺服器進程來響應該連接要求，並調用該伺服器程式。

While Debian installs openbsd-inetd by default, there is no lack of alternatives: we can mention inetutils-inetd, rlinetd, and xinetd, which all provide the virtual package inet-superserver.

The options are as follows: -d 1. Turns on debugging. -E 1. Preventsinetdfrom laundering the environment. Without this option a selection ofpotentially harmful environment variables, includingPATH will be removed and not inherited by services. -i 1. Makes

First appearing in 4.3BSD, [1] it is generally located at /usr/sbin/inetd. inetd is based on the (service) activator pattern [2] Often called a super-server, inetd listens on designated ports used by Internet services such as FTP, POP3, and telnet.

在任何的網路環境中使用 Linux 系統，第一件要做的事就是了解一下伺服器到底要提供哪些服務。 不需要的那些服務應該被禁止掉，最好卸載掉，這樣黑客就少了一些攻擊系統的機會。 查看“/etc/inetd.conf”檔案，了解一下inetd提供哪些服務。 用加上注釋的方法（在一行的開頭加上#號），禁止任何不需要的服務，再給inetd進程發一個 SIGHUP 信號。 inetd提供一種簡單的方法使應用程式具有網路功能。 對於 TCP 伺服器，inetd監聽在應用程式已知的連線埠上，監聽連

inetd is an Internet super-server (also known as daemon) which is run by root at boot time. It runs in a background and answers requests for services or certain internet sockets such as Telnet or FTP.

inetd通常在系統啟動時由/etc/rc.local引導。 inetd會監聽指定internet埠是否有連線要求。 當發現有某個埠有連線要 求時，inetd將決定由哪個伺服器程序來響應該連線要求，並呼叫該伺服器程式。