debian12 - install and config telnet

概述

前面实验，在xinetd中指定telnet服务，查看状态时，看到telnet服务bind失败。
直接从其他计算机来连telnet又是正常的，说明telnet服务已经启动起来了。
想确定一下，telnet服务是谁启动的。

笔记

实验环境 - 配置好的原装debian12。

sudo apt-get remove xinetd
sudo apt-get remove telnet
sudo apt-get remove telnetd-ssl
sudo apt-get update
sudo apt-get install telnet
sudo apt-get install telnetd-ssl

sudo systemctl status inetd

可以确定，inetd服务就是在安装完telnetd-ssl之后被启动的。
不用再安装xinetd了，怪不得装了xinetd之后，看telnet服务状态，说telnet服务bind失败，但是服务已经可用了。
此时，在win10中，用telnet连接debian12的IP, 输入用户名和口令后，是可以正常连接的。

telnet 192.168.236.133

telnet显示中文乱码需要使用UTF8语言，或者GB2312

export LANG=en_US.UTF-8

虽然不乱码了，汉字也不能正常显示，

配置文件

# 根据查询服务时的提示，看inetd帮助
man inetd

# 配置文件位置
/etc/inetd.conf

配置文件内容如下:

lostspeed@debian12d4x64:~$ more inetd.conf 
# /etc/inetd.conf:  see inetd(8) for further informations.
#
# Internet superserver configuration database
#
#
# Lines starting with "#:LABEL:" or "#<off>#" should not
# be changed unless you know what you are doing!
#
# If you want to disable an entry so it isn't touched during
# package updates just comment it out with a single '#' character.
#
# Packages should modify this file by using update-inetd(8)
#
# <service_name> <sock_type> <proto> <flags> <user> <server_path> <args>
#
#:INTERNAL: Internal services
#echo		stream	tcp	nowait	root	internal
#discard		stream	tcp	nowait	root	internal
#discard		dgram	udp	wait	root	internal
#daytime		stream	tcp	nowait	root	internal
#time		stream	tcp	nowait	root	internal
#chargen		stream	tcp	nowait	root	internal

#:STANDARD: These are standard services.
telnet		stream	tcp	nowait	telnetd-ssl	/usr/sbin/tcpd	/usr/sbin/in.telnetd

#:BSD: Shell, login, exec and talk are BSD protocols.

#:MAIL: Mail, news and uucp services.

#:INFO: Info services

#:BOOT: TFTP service is provided primarily for booting.  Most sites
#       run this only on machines acting as "boot servers."

#:RPC: RPC based services

#:HAM-RADIO: amateur-radio services

#:OTHER: Other services

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