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Top Forums Shell Programming and Scripting rsh login to host with password Post 302415808 by methyl on Friday 23rd of April 2010 11:04:47 AM
Old 04-23-2010
A .rhosts file should be created in the home directory of the target user on the target computer. The .rhosts file should have permissions 600 and be owned by that user or root. There are security implications.
See "man 4 .rhosts".

The simplest form of a line in a .rhosts file is just:
computername username

"computername" must match the exact name of the source computer if looked up on the target computer through hosts or dns.
"username" is the name of the user from the source computer. That account does not have to exist on the target computer.

Once the .netrc is working both "rsh" (or more usually "remsh") and "rlogin" will not need a password. It is usually quicker to test with "rlogin".


Footnote:
An "rsh" (or more usually "remsh") without any commands becomes an "rlogin" command. This is why you got prompted for the password. See the man pages.
 

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RLOGIN(1)						      General Commands Manual							 RLOGIN(1)

NAME
rlogin - remote login SYNOPSIS
rlogin [-8EL] [-e char] [-l username] rhost rhost [-8EL] [-e char] [-l username] DESCRIPTION
Rlogin connects your terminal on the current local host system lhost to the remote host system rhost. Each host has a file /etc/hosts.equiv which contains a list of rhost's with which it shares account names. (The host names must be the standard names as described in rsh(1).) When you rlogin as the same user on an equivalent host, you don't need to give a password. Each user may also have a private equivalence list in a file .rhosts in his login directory. Each line in this file should contain an rhost and a username separated by a space, giving additional cases where logins without passwords are to be permitted. If the originating user is not equivalent to the remote user, then a login and password will be prompted for on the remote machine as in login(1). To avoid some security problems, the .rhosts file must be owned by either the remote user or 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 rlogin is transparent. Flow control via ^S and ^Q and flushing of input and output on interrupts are handled properly. The optional argument -8 allows an eight-bit input data path at all times; otherwise parity bits are stripped except when the remote side's stop and start characters are other than ^S/^Q. The argument -L allows the rlogin session to be run in litout mode. A line of the form ``~.'' disconnects from the remote host, where ``~'' is the escape character. Similarly, the line ``~^Z'' (where ^Z, control-Z, is the suspend character) will suspend the rlogin session. Substitution of the delayed-suspend character (normally ^Y) for the suspend character suspends the send portion of the rlogin, but allows output from the remote system. A different escape character may be specified by the -e option. There is no space separating this option flag and the argument character. With the -E option the escape can be turned off. SEE ALSO
rsh(1), rhosts(5). BUGS
More of the environment should be propagated. 4.2 Berkeley Distribution May 12, 1986 RLOGIN(1)
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