Linux centos 运行telnet命令，出现下面的错误提示：

[root@localhost ~]# telnet 127.0.0.1

-bash: telnet: command not found

解决方法: 安装telnet服务

centos、ubuntu安装telnet命令的方法.

yum list telnet* 列出telnet相关的安装包

yum install telnet-server 安装telnet服务

yum install telnet.* 安装telnet客户端

[root@localhost ~]# yum list telnet*

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

* base: mirrors.cn99.com

* extras: mirrors.shu.edu.cn

* updates: mirrors.cn99.com

Available Packages

telnet.x86_64 1:0.17-48.el6 base

telnet-server.x86_64 1:0.17-48.el6 base

[root@localhost ~]# yum install telnet-server

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

* base: mirrors.cn99.com

* extras: mirrors.shu.edu.cn

* updates: mirrors.cn99.com

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package telnet-server.x86_64 1:0.17-48.el6 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

================================================================================

Package Arch Version Repository Size

================================================================================

Installing:

telnet-server x86_64 1:0.17-48.el6 base 37 k

Transaction Summary

================================================================================

Install 1 Package(s)

Total download size: 37 k

Installed size: 54 k

Is this ok [y/N]: y

Downloading Packages:

telnet-server-0.17-48.el6.x86_64.rpm | 37 kB 00:00

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Warning: RPMDB altered outside of yum.

Installing : 1:telnet-server-0.17-48.el6.x86_64 1/1

Verifying : 1:telnet-server-0.17-48.el6.x86_64 1/1

Installed:

telnet-server.x86_64 1:0.17-48.el6

Complete!

[root@localhost ~]#

[root@localhost ~]# yum install telnet.*

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

* base: mirrors.cn99.com

* extras: mirrors.shu.edu.cn

* updates: mirrors.cn99.com

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package telnet.x86_64 1:0.17-48.el6 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

====================================================================================================================================

Package Arch Version Repository Size

====================================================================================================================================

Installing:

telnet x86_64 1:0.17-48.el6 base 58 k

Transaction Summary

====================================================================================================================================

Install 1 Package(s)

Total download size: 58 k

Installed size: 109 k

Is this ok [y/N]: y

Downloading Packages:

telnet-0.17-48.el6.x86_64.rpm | 58 kB 00:00

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Installing : 1:telnet-0.17-48.el6.x86_64 1/1

Verifying : 1:telnet-0.17-48.el6.x86_64 1/1

Installed:

telnet.x86_64 1:0.17-48.el6

Complete!

[root@localhost ~]#