buntu下Telnet服务的实现方法

用Ubuntu 很长时间了，一直不会怎么用telnet服务。现在知道了，整理一下Ubuntu下实现Telnet服务的资料，供大家学习参考。 1、安装xinetd 以及telnetd liceven@liceven-laptop:~$ sudo apt-get install xinetd telnetd 获取：1 http://Ubuntu.cn99.com feisty/main xinetd 1:2.3.14-1ubuntu1 [135kB] 获取：2 http://Ubuntu.cn99.com feisty/universe telnetd 0.17-35ubuntu1 [42.0kB] 下载 177kB，耗时 7s (25.2kB/s)                                                 选中了曾被取消选择的软件包 xinetd。 (正在读取数据库 ... 系统当前总共安装有 123141 个文件和目录。) 正在解压缩 xinetd (从 .../xinetd_1%3a2.3.14-1Ubuntu1_i386.deb) ... 选中了曾被取消选择的软件包 telnetd。 正在解压缩 telnetd (从 .../telnetd_0.17-35Ubuntu1_i386.deb) ... 正在设置 xinetd (2.3.14-1Ubuntu1) ... Stopping internet superserver: xinetd. 增加 `diversion of /etc/init.d/inetd to /etc/init.d/inetd.real by xinetd' Starting internet superserver: xinetd. 正在设置 telnetd (0.17-35Ubuntu1) ... --------- IMPORTANT INFORMATION FOR XINETD USERS ---------- The following line will be added to your /etc/inetd.conf file: telnet          stream tcp     nowait telnetd /usr/sbin/tcpd /usr/sbin/in.telnetd If you are indeed using xinetd, you will have to convert the above into /etc/xinetd.conf format, and add it manually. See /usr/share/doc/xinetd/README.Debian for more information. ----------------------------------------------------------- 2、配置文件   A。 /etc/inetd.conf   liceven@liceven-laptop:~$ cat /etc/inetd.conf （如果存在就不需要了 ） telnet stream tcp nowait telnetd /usr/sbin/tcpd /usr/sbin/in.telnetd B. 修改/etc/xinetd.conf root@liceven-laptop:/etc# cat 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(插入红色部分 ） instances = 60 log_type = SYSLOG authpriv log_on_success = HOST PID log_on_failure = HOST cps = 25 30 } includedir /etc/xinetd.d C。/etc/xinetd.d/telnet并加入以下内容： # default: on # description: The telnet server serves telnet sessions; it uses \ # unencrypted username/password pairs for authentication. service telnet { disable = no flags = REUSE socket_type = stream wait = no user = root server = /usr/sbin/in.telnetd log_on_failure += USERID }   3. 重启机器或重启网络服务sudo /etc/init.d/xinetd restart 4. 使用TELNET客户端远程登录；ifconfig -a显示本机地址；

 

//查看telnet服务是否启动的命令： sudo netstat -ta |grep telnet