Rsh , Rlogin Without password

shan_nathan · 08-12-2007, 01:19 PM

Hi all ,

I am using suse 10.1 and i want to enable rsh , rcp , in my pc's . So i installed rsh rpm and put entry in the /etc/securetty file
rsh
rlogin
rexec

But i want to use rcp & rsh without password. What i have to do for that.
Pls tell me.

Tks.

bakfupai · 08-12-2007, 01:37 PM

I really recommend using ssh instead of rsh since it's encrypted, much more secure and can accomplish exactly what you want.

shan_nathan · 08-14-2007, 08:04 AM

I need to use rcp also so. I dont want to enter password on each time for copying.

yanik · 08-14-2007, 09:04 AM

with a properly setup sshd server, you will be able to use scp without any passwords using public/private keys.

'r' commands shouldn't be used anymore.

thebouv · 08-14-2007, 10:23 AM

Going to chip and and say the same thing. Do yourself a favor and do not bother with rsh/rcp. Stay away from telnet as well in case that was on your mind.

Check out OpenSSH ( http://www.openssh.org ). By default, the sftp sub-system runs and you'll be able to do all your scp commands just fine and in an encrypted environment.

Then look into ssh-agent ( http://www.openbsd.org/cgi-bin/man.c...gent&sektion=1 ) for password-less use like you want. You'll merely need to authenticate each session (for instance, after you start the machine). Then ssh-agent will handle authenticating scp and ssh sessions for you afterwards.

Check the LQWiki for a mini-howto on ssh-agent: http://wiki.linuxquestions.org/wiki/Ssh-agent

shan_nathan · 08-17-2007, 02:26 AM

Tks Now I am using scp and it's good. But in rsh i execute remote commands,
How i can do that via "s".

theYinYeti · 08-17-2007, 04:03 AM

ssh can execute remote commands too. Eg:

Code:

dest="remoteuser@remotehost:/remote/dir"

/bin/ls -1 /var/log/jboss.log.* 2>/dev/null | while read f; do
  if [ -f "$f" ]; then
    gzip -9 <"$f" | ssh ${dest%%:*} "cat >\"${dest#*:}/$(basename "$f").gz\"" && rm -f "$f"
  fi
done

(real-world example)

Yves.

yanik · 08-17-2007, 07:58 AM

Code:

ssh user@host command

shan_nathan · 08-18-2007, 01:21 AM

Hi,
Tks now everything is working fine. Now i need some scripting help.

I want to access some(200) Routers & Switches and have to put the same confiuration in all the equipments. is there any way to do that via script.

Pls guide me .
Thanks.