Digi WAN 3G User Manual page 210

remote login (rlogin)
A remote login to a Digi device's command-line interface (CLI). rlogin is a Unix command that
allows an authorized user to login to other UNIX machines (hosts) on a network and to interact
as if the user were physically at the host computer. Once logged in to the host, the user can do
anything that the host has given permission for, such as read, edit, or delete files.
remote shell (rsh)
A Berkeley Unix networking command to execute a given command on a remote host, passing
it input and receiving its output. Rsh communicates with a daemon on the remote host.
rlogin
See remote login.
RSSI
Relative Signal Strength Indicator.
RTS
Ready to Send.
RXD
Receiving Data.
Secure Sockets Layer (SSL)
A commonly-used protocol for managing the security of a message transmission on the Internet.
SSL has recently been succeeded by Transport Layer Security (TLS), which is based on SSL.
serial bridge
A connection between two serial devices over a network that acts as if they were connected over
a serial cable. Also known as serial tunneling.
serial tunneling
See serial bridge.
Setup Wizard
See Digi Device Setup Wizard.
Simple Mail Transfer Protocol (SMTP)
A TCP/IP protocol used in sending and receiving e-mail. Since it is limited in its ability to queue
messages at the receiving end, it is usually used with one of two other protocols, POP3 or IMAP,
that let the user save messages in a server mailbox and download them periodically from the
server. SMTP usually is implemented to operate over Internet port 25. An alternative to SMTP
that is widely used in Europe is X.400. Many mail servers now support Extended Simple Mail
Transfer Protocol (ESMTP), which allows multimedia files to be delivered as e-mail.
Simple Network Management Protocol (SNMP)
A protocol for managing and monitoring network devices. The SNMP architecture enables a
network administrator to manage nodes--servers, workstations, routers, switches, hubs, etc.--on
an IP network; manage network performance, find and solve network problems, and plan for
network growth.
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