Remote Connection to Linux

Hi,
I am writing a program that requires to connect to remote Linux
machines and execute a program after authentication. This connection
has to be initiated by the program. The program needs to copy a few
files also.
Is it possible to do this without running a seperate server program.
or using some service that is already running on the Linux systems.
The copying needs to be done securely sometimes. Although this is not
a concern at this moment.
Any pointers on the possiblilty i can explore would be helpful.
Thanks
-Rajat

(E-Mail Removed) wrote:

> I am writing a program that requires to connect to remote Linux
> machines and execute a program after authentication. This connection
> has to be initiated by the program. The program needs to copy a few
> files also.

Keyword: ssh. Plenty of source out there to explore.

-Timo

--
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Timo Voipio <tvoipio+(E-Mail Removed)> wrote in message news:<bha15g$vfifl$(E-Mail Removed)>...
> (E-Mail Removed) wrote:
>
> > I am writing a program that requires to connect to remote Linux
> > machines and execute a program after authentication. This connection
> > has to be initiated by the program. The program needs to copy a few
> > files also.
>
> Keyword: ssh. Plenty of source out there to explore.
>
> -Timo

Is it possible to do this without running a seperate server program??

On 12 Aug 2003 04:54:35 -0700,
(E-Mail Removed) ((E-Mail Removed)) wrote:
> Timo Voipio <tvoipio+(E-Mail Removed)> wrote in message news:<bha15g$vfifl$(E-Mail Removed)>...
>> (E-Mail Removed) wrote:
>>
>> > I am writing a program that requires to connect to remote Linux
>> > machines and execute a program after authentication. This connection
>> > has to be initiated by the program. The program needs to copy a few
>> > files also.
>>
>> Keyword: ssh. Plenty of source out there to explore.
>>
>> -Timo
>
> Is it possible to do this without running a seperate server program??

No transaction is possible without a server at one end and a client at
the other. You do understand that a server program (daemon) has to be
running (listening) for incoming connections from your client.

ssh is installed by default on most Linux distributions that I know of.
It would be a simple and secure way for you to achieve your goal.

A less secure way would be to use "rsh" and enable "rshd" on the Linux box.

Bev
--
Bev A. Kupf
"The lyfe so short, the craft so long to lerne" -- Chaucer

(E-Mail Removed) wrote in message news:<(E-Mail Removed). com>...
> Hi,
> I am writing a program that requires to connect to remote Linux
> machines and execute a program after authentication. This connection
> has to be initiated by the program. The program needs to copy a few
> files also.
> Is it possible to do this without running a seperate server program.
> or using some service that is already running on the Linux systems.
> The copying needs to be done securely sometimes. Although this is not
> a concern at this moment.
> Any pointers on the possiblilty i can explore would be helpful.
> Thanks
> -Rajat

Take a look here:

http://www.openssh.org

In article <(E-Mail Removed) >,
<(E-Mail Removed)> wrote:

>Is it possible to do this without running a seperate server program.

Is there some reason you aren't using ssh for this?

--

(E-Mail Removed) wrote:
> Hi,
> I am writing a program that requires to connect to remote Linux
> machines and execute a program after authentication. This connection
> has to be initiated by the program. The program needs to copy a few
> files also.
> Is it possible to do this without running a seperate server program.
> or using some service that is already running on the Linux systems.
> The copying needs to be done securely sometimes. Although this is not
> a concern at this moment.
> Any pointers on the possiblilty i can explore would be helpful.
> Thanks
> -Rajat

Here is a good link that should be of help.

Secure Passwordless Logins with SSH
http://www.hackinglinuxexposed.com/a.../20021211.html

--
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Registered with The Linux Counter. http://counter.li.org/
Slackware 9.0 Kernel 2.4.21 i686 (GCC) 3.3
Uptime: 7 days, 12:51, 1 user, load average: 0.41, 0.23, 0.13

David <(E-Mail Removed)> wrote in message news:<Af8_a.88656$cF.27900@rwcrnsc53>...
> (E-Mail Removed) wrote:
> > Hi,
> > I am writing a program that requires to connect to remote Linux
> > machines and execute a program after authentication. This connection
> > has to be initiated by the program. The program needs to copy a few
> > files also.
> > Is it possible to do this without running a seperate server program.
> > or using some service that is already running on the Linux systems.
> > The copying needs to be done securely sometimes. Although this is not
> > a concern at this moment.
> > Any pointers on the possiblilty i can explore would be helpful.
> > Thanks
> > -Rajat
>
> Here is a good link that should be of help.
>
> Secure Passwordless Logins with SSH
> http://www.hackinglinuxexposed.com/a.../20021211.html

Thanks i will explore the possibilities with ssh.
But still i have one question, what is the equivalent of connecting to
admin$ on a linux machine? Is samba required for accessing admin$. In
windows i could connect to admin$ without a server running, was it
running some service in the background.

(E-Mail Removed) wrote in message news:<(E-Mail Removed). com>...
> David <(E-Mail Removed)> wrote in message news:<Af8_a.88656$cF.27900@rwcrnsc53>...
> > (E-Mail Removed) wrote:
> > > Hi,
> > > I am writing a program that requires to connect to remote Linux
> > > machines and execute a program after authentication. This connection
> > > has to be initiated by the program. The program needs to copy a few
> > > files also.
> > > Is it possible to do this without running a seperate server program.
> > > or using some service that is already running on the Linux systems.
> > > The copying needs to be done securely sometimes. Although this is not
> > > a concern at this moment.
> > > Any pointers on the possiblilty i can explore would be helpful.
> > > Thanks
> > > -Rajat
> >
> > Here is a good link that should be of help.
> >
> > Secure Passwordless Logins with SSH
> > http://www.hackinglinuxexposed.com/a.../20021211.html
>
> Thanks i will explore the possibilities with ssh.
> But still i have one question, what is the equivalent of connecting to
> admin$ on a linux machine?

There isn't.

> Is samba required for accessing admin$.

Ask yourself - What IS admin$?

> In windows i could connect to admin$ without a server running,

I bet you can't. More likely you just aren't aware of what is running
on your closed-source windows box ;-)

> was it running some service in the background.

hehe.

What you need to do is ask yourself "what am I trying to achieve"? My
guess is that you can achieve everything you want by running as the
"root" user (like the "Administrator" user in Windows). UNIX is great
in that you can have multiple users logged in at the same time... to
one box... and in a normal environment there will be tens, maybe
hundreds of people logged in! This is /very/ strange to someone coming
from a Windows environment where remote access is so clumsy and
awkward. You'll love it

Take a look here as well, could be useful to you:

http://www.tldp.org

[snip]
> Alright ssh meets might requirements but i couldn't find any libraries
> that i can use to implement the functionality in my application. Is
> there any library that is free for commercial use, as the app will be
> used inside the company.
> Thanks

Erm? Where are you looking? Go here:

http://www.openssh.org