in creating script to change passwd on a number of remote hosts

05/12/2006, 23h30

I have a large number of remote hosts accessed using ssh.

I would like to create a script to change the root passwd on these hosts
periodically

I have tried using the following hereis file with not much luck

file:

/bin/passwd root << eof
oldpasswd
newpasswd
eof

Appreciate some advice

Sammy

05/12/2006, 23h36

Ps
I'm aware of yellowpages and similar applications but I would like to
automate using a shell or possible perl script.

"sammy" <kim111@bigpond.net.au> wrote in message
news:2indh.3199$HU.2704@news-server.bigpond.net.au...
>I have a large number of remote hosts accessed using ssh.
>
> I would like to create a script to change the root passwd on these hosts
> periodically
>
> I have tried using the following hereis file with not much luck
>
> file:
>
> /bin/passwd root << eof
> oldpasswd
> newpasswd
> eof
>
> Appreciate some advice
>
> Sammy
>

06/12/2006, 08h07

sammy schrieb:

> Ps
> I'm aware of yellowpages and similar applications but I would like to
> automate using a shell or possible perl script.
>
> "sammy" <kim111@bigpond.net.au> wrote in message
> news:2indh.3199$HU.2704@news-server.bigpond.net.au...
> >I have a large number of remote hosts accessed using ssh.
> >
> > I would like to create a script to change the root passwd on these hosts
> > periodically
> >
> > I have tried using the following hereis file with not much luck
> >
> > file:
> >
> > /bin/passwd root << eof
> > oldpasswd
> > newpasswd
> > eof
> >
> > Appreciate some advice
> >
> > Sammy
> >

Note that passwd wants to do some ioctl on the tty to disable echoing.
scripting tty is done by expect (you have to use TCL). Changing the
passwd is not complicated here. Look

http://www.ale.org/archive/ale/ale-2.../msg00583.html

The expect script can then be started by ssh.

Hubble.

06/12/2006, 14h34

On Tue, 05 Dec 2006 23:30:06 GMT, sammy
<kim111@bigpond.net.au> wrote:
> I have a large number of remote hosts accessed using ssh.
>
> I would like to create a script to change the root passwd on these hosts
> periodically
>
> I have tried using the following hereis file with not much luck
>
> file:
>
> /bin/passwd root << eof
> oldpasswd
> newpasswd
> eof
>
For security reasons, the passwd command does not use standard input.
You need expect if you are going to use passwords and use a script to
change them. You might also consider using NIS or LDAP, or using
ssh with public and private keys instead of passwords.

--
I'll be comfortable on the couch. Famous last words.
-- Lenny Bruce

09/12/2006, 02h45

On Tue, 05 Dec 2006 23:30:06 +0000, sammy wrote:

> I have a large number of remote hosts accessed using ssh.
>
> I would like to create a script to change the root passwd on these hosts
> periodically
>
> I have tried using the following hereis file with not much luck
>
> file:
>
> /bin/passwd root << eof
> oldpasswd
> newpasswd
> eof
>
> Appreciate some advice

chpasswd ought to do it.

10/12/2006, 10h51

sammy <kim111@bigpond.net.au> wrote:
> I have a large number of remote hosts accessed using ssh.
>
> I would like to create a script to change the root passwd on these hosts
> periodically
>
> I have tried using the following hereis file with not much luck
>
> file:
>
> /bin/passwd root << eof
> oldpasswd
> newpasswd
> eof
>
> Appreciate some advice

You might want to consider changing the hash in /etc/shadow
or an equivalent file.

--
Kenan Kalajdzic

05/12/2006, 23h30	#1
sammy Messages: n/a Hébergeur:	in creating script to change passwd on a number of remote hosts I have a large number of remote hosts accessed using ssh. I would like to create a script to change the root passwd on these hosts periodically I have tried using the following hereis file with not much luck file: /bin/passwd root << eof oldpasswd newpasswd eof Appreciate some advice Sammy

05/12/2006, 23h36	#2
sammy Messages: n/a Hébergeur:	Re: in creating script to change passwd on a number of remote hosts Ps I'm aware of yellowpages and similar applications but I would like to automate using a shell or possible perl script. "sammy" <kim111@bigpond.net.au> wrote in message news:2indh.3199$HU.2704@news-server.bigpond.net.au... >I have a large number of remote hosts accessed using ssh. > > I would like to create a script to change the root passwd on these hosts > periodically > > I have tried using the following hereis file with not much luck > > file: > > /bin/passwd root << eof > oldpasswd > newpasswd > eof > > Appreciate some advice > > Sammy >

06/12/2006, 08h07	#3
Hubble Messages: n/a Hébergeur:	Re: in creating script to change passwd on a number of remote hosts sammy schrieb: > Ps > I'm aware of yellowpages and similar applications but I would like to > automate using a shell or possible perl script. > > "sammy" <kim111@bigpond.net.au> wrote in message > news:2indh.3199$HU.2704@news-server.bigpond.net.au... > >I have a large number of remote hosts accessed using ssh. > > > > I would like to create a script to change the root passwd on these hosts > > periodically > > > > I have tried using the following hereis file with not much luck > > > > file: > > > > /bin/passwd root << eof > > oldpasswd > > newpasswd > > eof > > > > Appreciate some advice > > > > Sammy > > Note that passwd wants to do some ioctl on the tty to disable echoing. scripting tty is done by expect (you have to use TCL). Changing the passwd is not complicated here. Look http://www.ale.org/archive/ale/ale-2.../msg00583.html The expect script can then be started by ssh. Hubble.

06/12/2006, 14h34	#4
Bill Marcum Messages: n/a Hébergeur:	Re: in creating script to change passwd on a number of remote hosts On Tue, 05 Dec 2006 23:30:06 GMT, sammy <kim111@bigpond.net.au> wrote: > I have a large number of remote hosts accessed using ssh. > > I would like to create a script to change the root passwd on these hosts > periodically > > I have tried using the following hereis file with not much luck > > file: > > /bin/passwd root << eof > oldpasswd > newpasswd > eof > For security reasons, the passwd command does not use standard input. You need expect if you are going to use passwords and use a script to change them. You might also consider using NIS or LDAP, or using ssh with public and private keys instead of passwords. -- I'll be comfortable on the couch. Famous last words. -- Lenny Bruce

09/12/2006, 02h45	#5
Carbon Messages: n/a Hébergeur:	Re: in creating script to change passwd on a number of remote hosts On Tue, 05 Dec 2006 23:30:06 +0000, sammy wrote: > I have a large number of remote hosts accessed using ssh. > > I would like to create a script to change the root passwd on these hosts > periodically > > I have tried using the following hereis file with not much luck > > file: > > /bin/passwd root << eof > oldpasswd > newpasswd > eof > > Appreciate some advice chpasswd ought to do it.

10/12/2006, 10h51	#6
Kenan Kalajdzic Messages: n/a Hébergeur:	Re: in creating script to change passwd on a number of remote hosts sammy <kim111@bigpond.net.au> wrote: > I have a large number of remote hosts accessed using ssh. > > I would like to create a script to change the root passwd on these hosts > periodically > > I have tried using the following hereis file with not much luck > > file: > > /bin/passwd root << eof > oldpasswd > newpasswd > eof > > Appreciate some advice You might want to consider changing the hash in /etc/shadow or an equivalent file. -- Kenan Kalajdzic

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