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Publisher| telnet |
remote host running the telnet daemon.
Syntax
telnet [hostname [portnumber] ]
Options
- telnet [hostname [portnumber]]
Starts a client-side telnet session by opening a
Microsoft telnet shell within the command shell
on the local machine.hostname is the name (DNS or NetBIOS,
depending on the network) or IP address of the remote
telnet server. If
hostname is omitted, the
telnet client starts but
doesn't connect to a telnet
server (use the open command in that case to
connect).portnumber is required only if the default
port (TCP port 23) isn't used by the
telnet server.
Commands
- close
Terminates the current telnet session but keeps
the telnet shell open on the client- display
Displays the operating parameters (see set
option later in this list)- open
Establishes a connection with a telnet server- quit
Exits the telnet shell and returns to the
command prompt- set option
Enables different settings, specifically:- NTLM
Authenticates telnet sessions using NTLM (challenge/response)
authentication- LOCAL_ECHO
Displays typed keystrokes on the screen- TERM [ANSI | VT100 | VT52 | VTNT]
Specifies the terminal mode to use- CRLF
Sends both a carriage return and linefeed when Enter is pressed
- status
Displays the status of the connection- unset option
Disables different settings, specifically:- NTLM
Authenticates telnet sessions using basic
authentication (clear text) instead of NTLM (challenge/response)
authentication- LOCAL_ECHO
Causes typed keystrokes not to be displayed on the screen- CRLF
Sends only a carriage return (and not a carriage return plus a
linefeed) when Enter is pressed
Examples
Start the telnet client on the local machine:
C:\>telnet
Microsoft (R) WS2003
Welcome to Microsoft Telnet Client
Telnet Client Build 5.00.99201.1
Escape Character is 'CTRL+]'
Microsoft Telnet>
Display the current client settings:
Microsoft Telnet> display
Escape Character is 'CTRL+]'
WILL AUTH (NTLM Authentication)
LOCAL_ECHO off
Sending both CR & LF
WILL TERM TYPE
Preferred Term Type is ANSI
Open a session with the telnet server
172.16.11.100:
Microsoft Telnet> open 172.16.11.100
*= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Welcome to Microsoft Telnet Server.
*= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
C:\>
Determine the IP address configuration of the remote
telnet server:
C:\> ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : bach
Primary DNS Suffix . . . . . . . : mtitworld.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : mtitworld.com
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NE2000 Compatible
Physical Address. . . . . . . . . : 00-40-95-D1-29-6C
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 172.16.11.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.11.1
DNS Servers . . . . . . . . . . . : 172.16.11.100
172.16.11.104
Primary WINS Server . . . . . . . : 172.16.11.50
Notes
- Unlike NT before it, WS2003 includes a telnet
service and can function as a telnet server that
provides a new way of performing remote administration on WS2003
servers. Note that the telnet service must be
manually started on the server or have its startup setting changed to
Automatic before a telnet client can connect to
it. - While the telnet client on NT was a GUI utility
(telnet.exe ), the WS2003 version runs in console
mode instead. This client also supports NTLM authentication to
provide more secure authentication between
telnet clients and servers. However, one feature
that was provided by the GUI telnet.exe on NT,
which isn't supported in the new command-line
version, is session logging.
See Also
rcp, rexec,
rsh
