02-03-2010
[SSH] Need to connect to remote server as different user and without password
I have a task requiring that USER_A run a script, which connects to HOST_B as USER_B and does not ask for a password.
If I am logged in on HOST_A as USER_B, I can connect to HOST_B without a password, no problem. However, if I try running ssh with the command line "ssh USER_B@HOST_B" while logged in as USER_A, it asks for USER_B's password on HOST_B.
What am I doing wrong? Is there a way around this?
Thanks,
Todd
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
i want to connect to a remote server through ssh.
i have to also provide password within that script.
after connecting to the remote server i want to do some operations like grep,cd etc
can u pls help me to wite a script.
Thanks (1 Reply)
Discussion started by: millan
1 Replies
2. UNIX for Dummies Questions & Answers
I am trying to create a batch script to securely copy (scp or sftp) files from one machine to another. Unfortunately the files are owned by a different user than the one on my local machine.
I have already done a keygen and moved the public key to the authorized_users file of the user on the... (2 Replies)
Discussion started by: PSDba
2 Replies
3. Shell Programming and Scripting
Hi ,
I am new to shell script.
I have to write a shell script which will login to remote server then check for the space there. There 50 remote ervers all are having different password.
Could you please suggest me some way. I am working on solaris box.
Thanks in advance (2 Replies)
Discussion started by: vikash_k
2 Replies
4. UNIX for Dummies Questions & Answers
Hi all,
Really hope someone can help me, i have been trying lots of things and just cant seem to nail it - and for something that seems straight forward....
Anyway, scenario is I need to log onto a second machine (remote server) from main workstation. Once logged in I need to run a batch... (2 Replies)
Discussion started by: Hopper_no1
2 Replies
5. Shell Programming and Scripting
Hello All,
I'm new to unix and i need the below favour from you.
I have list of 50 unix server. I need to login to all the server one by one and with the same user and password. I will declare the user name and password globally in the script.
for example :
servername- hyperV
user name... (4 Replies)
Discussion started by: Hari A
4 Replies
6. Red Hat
hi all
i am unable to connect remote server using ssh but i am able to ping the server
ssh service is running. (5 Replies)
Discussion started by: nikhil kasar
5 Replies
7. HP-UX
I am trying to connect to remote server in hp-ux, using sftp command (using sftp username@ip and password ) able to connect to remote server but, in this case sftp prompt for password and user need to manually enter it.
I want sftp can read a password define in script or from file, so it can... (1 Reply)
Discussion started by: ketanraut
1 Replies
8. Shell Programming and Scripting
Hi,
I need to run a script located in a directory on remote server by using ssh authentication from my local unix server. Can anyone help me in this.
I have tried the below command. It worked for echo command but when i tried to open a file using cat command it is showing "cat: cannot open... (6 Replies)
Discussion started by: ssk250
6 Replies
9. Ubuntu
Hello,
What I want to do is to run a file on remote server by running a script at localhost but script should not ask ssh password of my remote server when script is executed.
Scenario1:
To copy files from server2 to data server:$ scp -r root@server2_ip:/var/www/html/*.* /var/
When I enter... (6 Replies)
Discussion started by: baris35
6 Replies
10. Shell Programming and Scripting
I have a script, which connecting to remote server and first checks, if the files are there by timestamp. If not I want the script exit without error. Below is a code
TARFILE=${NAME}.tar
TARGZFILE=${NAME}.tar.gz
ssh ${DESTSERVNAME} 'cd /export/home/iciprod/download/let/monthly;... (3 Replies)
Discussion started by: digioleg54
3 Replies
LEARN ABOUT SUSE
passmass
PASSMASS(1) General Commands Manual PASSMASS(1)
NAME
passmass - change password on multiple machines
SYNOPSIS
passmass [ host1 host2 host3 ... ]
INTRODUCTION
Passmass changes a password on multiple machines. If you have accounts on several machines that do not share password databases, Passmass
can help you keep them all in sync. This, in turn, will make it easier to change them more frequently.
When Passmass runs, it asks you for the old and new passwords. (If you are changing root passwords and have equivalencing, the old pass-
word is not used and may be omitted.)
Passmass understands the "usual" conventions. Additional arguments may be used for tuning. They affect all hosts which follow until
another argument overrides it. For example, if you are known as "libes" on host1 and host2, but "don" on host3, you would say:
passmass host1 host2 -user don host3
Arguments are:
-user
User whose password will be changed. By default, the current user is used.
-rlogin
Use rlogin to access host. (default)
-slogin
Use slogin to access host.
-ssh
Use ssh to access host.
-telnet
Use telnet to access host.
-program
Next argument is a program to run to set the password. Default is "passwd". Other common choices are "yppasswd" and "set
passwd" (e.g., VMS hosts). A program name such as "password fred" can be used to create entries for new accounts (when run as
root).
-prompt
Next argument is a prompt suffix pattern. This allows the script to know when the shell is prompting. The default is "# " for
root and "% " for non-root accounts.
-timeout
Next argument is the number of seconds to wait for responses. Default is 30 but some systems can be much slower logging in.
-su
Next argument is 1 or 0. If 1, you are additionally prompted for a root password which is used to su after logging in. root's
password is changed rather than the user's. This is useful for hosts which do not allow root to log in.
HOW TO USE
The best way to run Passmass is to put the command in a one-line shell script or alias. Whenever you get a new account on a new machine,
add the appropriate arguments to the command. Then run it whenever you want to change your passwords on all the hosts.
CAVEATS
Using the same password on multiple hosts carries risks. In particular, if the password can be stolen, then all of your accounts are at
risk. Thus, you should not use Passmass in situations where your password is visible, such as across a network which hackers are known to
eavesdrop.
On the other hand, if you have enough accounts with different passwords, you may end up writing them down somewhere - and that can be a
security problem. Funny story: my college roommate had an 11"x13" piece of paper on which he had listed accounts and passwords all across
the Internet. This was several years worth of careful work and he carried it with him everywhere he went. Well one day, he forgot to
remove it from his jeans, and we found a perfectly blank sheet of paper when we took out the wash the following day!
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
7 October 1993 PASSMASS(1)