What is telnet?
Telnet is a user command and an underlying TCP/IP protocol for
accessing remote computers. Through Telnet, an administrator or another user
can access someone else's computer remotely. On the Web, HTTP and FTP protocols
allow you to request specific files from remote computers, but not to actually
be logged on as a user of that computer. With Telnet, you log on as a regular
user with whatever privileges you may have been granted to the specific application
and data on that computer.
How to install telnet?
If you use fresh OS installation (not a full installation),
you cannot access telnet command in your machine,
[akila@localhost
u01]# telnet
bash:
telnet: command not found...
so you have to install telnet in your machine,
if you have internet connection to your machine, type below
command in the terminal, then it will install telnet in your machine,
[akila@localhost
u01]# yum install telnet
If you don’t have internet connection to your machine, best
way to install telnet is by using telnet rpm file.
Download telnet-0.17-48.<linux version>.x86_64.rpm and
then go to the file location by using terminal.
Then type below command,
[akila@localhost
rpmFiles]# rpm -ivh telnet-0.17-48.<linux version>.x86_64.rpm
warning:
telnet-0.17-48.<>.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID
xxxxxx: NOKEY
Preparing... ################################# [100%]
Updating
/ installing...
1:telnet-1:0.17-48.el6 #################################
[100%]
It will install telnet properly.
How to check telnet installed correctly
Simply type below command and you will get the connected
result if telnet installed successfully,
[akila@localhost
rpmFiles]# telnet localhost 22
Trying
::1...
Connected
to localhost.
Escape
character is '^]'.
SSH-2.0-OpenSSH_6.4
