安裝telnet服務

RH9.0 安裝與啟動telnet服務步驟

RH9.0 安裝與啟動telnet服務步驟: by coding

    telnet分為兩個部分

一個為telnet 客戶端

一個為telnet 服務端

先判斷系統是否已經安裝telnet客戶端及服務端使用

           rpm -qa | grep "telnet"

telnet客戶端rpm包名為: telnet-0.17-25.386.rpm (在RH的第一張安裝光盤里)

telnet服務端rpm包名為: telnet-server-0.17-25.i386.rpm (在RH的第三張光盤里)

          # rpm -ivh telnet-0.17-25.386.rpm 提示安裝成功

         # rpm -ivh telnet-server-0.17-25.i386.rpm 提示安裝成功啟動服務:

當telnet-server安裝成功后,在/etc/xinetd.d目錄下會生成一個telnet的文本文件,內容如下:

         # default: on n # description: The telnet server serves telnet sessions; it uses # unencrypted username/password pairs for authentication. service telnet { flags = REUSE socket_type = stream wait = no user = root server = /usr/sbin/in.telnetd log_on_failure += USERID disable = yes }

將上文件中 disable=yes改為 disable = no;

保存退出

           # chkconfig --list

xinetd based services:

chargen-udp: off

rsync: off

chargen: off

daytime-udp: off

daytime: off

echo-udp: off

echo: off

services: off

servers: off

time-udp: off

time: off

sgi_fam: on

telnet: on

telnet no 說明配置文件修改成功因為是xinetd守護的服務所以需要以下方法啟動:

重起xinetd

# service xinetd restart

# nmap 127.0.0.1 Starting nmap V. 3.00 ( www.insecure.org/nmap/ ) Interesting ports on localhost.localdomain (127.0.0.1): (The 1595 ports scanned but not shown below are in state: closed) Port State Service 22/tcp open ssh 23/tcp open telnet 25/tcp open smtp 111/tcp open sunrpc 1024/tcp open kdm telnet

服務啟動成功卸載:

將 服務停止;

# rpm -ev telnet-server-0.17-25.i386.rpm

提示卸載成功卸載telnet-server時會提示將telnet改名為telnet.rpmsave保存設置. 完

原文轉自：http://www.kjueaiud.com