TELNET

Command

TELNET -- Establish a TCP "connection".

Synopsis

TELNET <hostname | ipaddress> [port]

Description

The TELNET command allows users to "connect" to other TCP/IP systems, using a "shell" account, i.e. the user does not need to be running TCP/IP as the router does all the TCP/IP <> AX25 translation.

Options

The first argument <hostname | ipaddress> is either the hostname or the IP number of the target system. If the hostname doesn't contain at least one period (.), the domain suffix specified in XROUTER.CFG (default .ampr.org.) is appended.

The optional <port> parameter specifies the desired service on the target host. If not supplied, the default is 23, i.e. the "Telnet" port. Common port numbers are 21 (FTP), 23 (Telnet), 25 (SMTP), and 87 (TTYLINK).

Examples

TELNET 44.131.90.6 21   Connect to FTP server at 44.131.90.6
TELNET gb7lgs.ampr.org  Telnet login to gb7lgs
TELNET gb7pzt 25        Connect to SMTP server at gb7pzt

Limitations

This command will only work if the router has an IP address and IP routing has been defined. It should be obvious that the router also needs to be connected to an IP-capable network!

Notes

Specifying target hosts by their IP addresses will often result in faster connection if the hostname is not in domain.sys, as it will not have to wait for DNS resolution.

Availability

All users except "guests".

See also

PING -- For testing if the target host is reachable.