rlogin(1) UNIX System V(Internet Utilities) rlogin(1)
NAME
rlogin - remote login
SYNOPSIS
rlogin [ -L ] [ -8 ] [ -e c ] [ -l username ] hostname
DESCRIPTION
rlogin establishes a remote login session from your terminal to the
remote machine named hostname.
Hostnames are listed in the hosts database, which may be contained in the
/etc/hosts file, the Internet domain name server, or in both. Each host
has one official name (the first name in the database entry), and
optionally one or more nicknames. Either official hostnames or nicknames
may be specified in hostname.
Each remote machine may have a file named /etc/hosts.equiv containing a
list of trusted hostnames with which it shares usernames. Users with the
same username on both the local and remote machine may rlogin from the
machines listed in the remote machine's /etc/hosts.equiv file without
supplying a password. Individual users may set up a similar private
equivalence list with the file .rhosts in their home directories. Each
line in this file contains two names: a hostname and a username separated
by a space. An entry in a remote user's .rhosts file permits the user
named username who is logged into hostname to log in to the remote
machine as the remote user without supplying a password. If the name of
the local host is not found in the /etc/hosts.equiv file on the remote
machine, and the local username and hostname are not found in the remote
user's .rhosts file, then the remote machine will prompt for a password.
Hostnames listed in /etc/hosts.equiv and .rhosts files must be the offi-
cial hostnames listed in the hosts database; nicknames may not be used in
either of these files.
To counter security problems, the .rhosts file must be owned by either
the remote user or by root.
The remote terminal type is the same as your local terminal type (as
given in your environment TERM variable). The terminal or window size is
also copied to the remote system if the server supports the option, and
changes in size are reflected as well. All echoing takes place at the
remote site, so that (except for delays) the remote login is transparent.
Flow control using CTRL-S and CTRL-Q and flushing of input and output on
interrupts are handled properly.
The following options are available:
-L Allow the rlogin session to be run in litout mode.
-8 Pass eight-bit data across the net instead of seven-bit data.
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rlogin(1) UNIX System V(Internet Utilities) rlogin(1)
-e c Specify a different escape character, c, for the line used to
disconnect from the remote host.
-l username
Specify a different username for the remote login. If you do not
use this option, the remote username used is the same as your local
username.
Escape Sequences
Lines that you type which start with the tilde character are escape
sequences (the escape character can be changed using the -e options):
~. Disconnect from the remote host - this is not the same as a logout,
because the local host breaks the connection with no warning to the
remote end.
susp Suspend the login session (only if you are using a shell with Job
Control). susp is your suspend character, usually CTRL-Z, see
tty(1).
FILES
/etc/passwd
/usr/hosts/* for hostname version of the command
/etc/hosts.equiv list of trusted hostnames with shared usernames
$HOME/.rhosts private list of trusted hostname/username
combinations
SEE ALSO
rsh(1), stty(1), tty(1), named(1M), hosts(4), hosts.equiv(4)
NOTES
When a system is listed in hosts.equiv, its security must be as good as
local security. One insecure system listed in hosts.equiv can compromise
the security of the entire system.
When a line of the form hostname username appears in hosts.equiv, the
user named may log in as anyone in the local password file by using the
command
rlogin -l username hostname
where username is any valid username in the passwd file.
If you use a windowing terminal and you intend to run layers(1) on the
remote system, then you must invoke rlogin with the -8 option.
This implementation can only use the TCP network service.
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