topic can't use rlogin in Operating System - Linux

can't use rlogin

peterchu — Tue, 31 Aug 2004 06:53:39 GMT

I have two hosts - Host A and Host B , Host A can rlogin to host B but host B can't rlogin to host A ,

I have check the folloing

1. turn the rlogin on

/sbin/chkconfig --list rlogin
rlogin on

2. release ~userid/.rhosts to the remote user ( + + )

what is the other possibities that cause the rlogin can't work ? thx.

Re: can't use rlogin

peterchu — Tue, 31 Aug 2004 06:58:46 GMT

it is OK now , please ignore it.

thx

Re: can't use rlogin

Chris Saunderson — Tue, 31 Aug 2004 08:51:30 GMT

you REALLY do not want to do + + in .rhosts. That says any user from any machine can rlogin in.

Re: can't use rlogin

dirk dierickx — Wed, 01 Sep 2004 01:06:13 GMT

don't use rlogin, but use ssh instead.

all r* commands are unsafe.

Re: can't use rlogin

Ross Minkov — Mon, 06 Sep 2004 19:31:13 GMT

1. Don't use rlogin/rsh/telnet, etc. Use ssh/scp, etc. instead!!!

2. Don't ever put + + in any .rhosts. Anyone from anywhere can rlogin/rsh/rcp.

3. If you sstill want to use .rhosts file then make sure you specify host account in it and then make sure its perms are set to 600.

Also make sure that you enabled rlogin on both systems (maybe you enabled it only on one of the systems and not the other, so it works only one way?).

Check /etc/securetty file. If not sure about it's syntax and only want to exclude it as a potential break point for rlogin, just rename it and try rlogin again.

Try enabling rsh too (using chkconfig) and try using it. It'n not much different from rlogin.

HTH.
Ross