IP Networking

Can you clarify how you connect through PuTTY though? Do you use a saved session with additional default commands executed on ServerA on login?

---------- Post updated at 04:22 PM ---------- Previous update was at 12:22 PM ----------

Also, can you confirm if you can use key-based authentication for either server, and whether you can log into ServerA without passing straight through to ServerB?

We use putty.exe and feed in the host-name of ServerA. Upon login it propts for the credentials of serverA. As soon as you provide them it automatically takes the same user1 as the login and prompts us for the password for ServerB. So we have to authenticate credentials on both the servers explicitly.

I dont know what are saved sessions. If it is something on ServerA or ServerB then I would need yr help figure it out. If it is something on our windows terminal then I can assure you that there is nothing saved as such.

Ok, that sounds very much like there is a saved session there.Do you not use the PuTTY GUI at all?

I suspect that instead of running

Code:

putty.exe <serverA>

you ran

Code:

plink <serverA> "hostname"

you would get the hostname of serverB returned after being prompted for the password twice, same as when using putty.

If that is the case, you need to get key based authentication enabled/configured to allow any script the chance to work without a human in attendance.

I never ran this in my life.

Code:

 
putty.exe <serverA>

I use putty GUI only.

I did not get what did you mean when you said to use plink.

See my output below.

Code:

C:\Program Files\PuTTY>plink -v -ssh user1@ServerA hostname

gives me the hostname of serverA and not serverB.

Am i missing something ?

Hi Guys,

I have some good inputs as i made a little progress on this.

Sorry for bieng away for some concerns.

Anyways, below is the progress...

Code:

plink user1@ServerA -m local_script.sh -v
 
id
uid=3800(user1) gid=74(sshd) groups=74(sshd)
pwd
/home/ServerA/user1
cat .profile
echo "Connecting to: serverB"
exec /usr/local/bin/serverB
                exit
ls -ltra /usr/local/bin/serverB
-r-xr-xr-x 1 root root 2406 Feb  8 15:37 /usr/local/bin/serverBplink user1@ServerA -m local_script.sh -v

So, now we know how is it switching from ServerA to ServerB automatically.

However, this switch happens when I use putty GUI and does not happen when using plink.

Regardless, I wish to execute a script on ServerB. Can you now help me what needs to be done on ServerA or ServerB to get my teask accomplished ?