Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Calling a function which uses expect from a shells script
Top Forums Shell Programming and Scripting Calling a function which uses expect from a shells script Post 302570544 by Corona688 on Thursday 3rd of November 2011 02:31:41 PM
Old 11-03-2011
You needed third-party hacking tools to inject passwords into ssh because ssh -- and any sane login like sudo, su, and so forth -- are all explicitly designed to prevent this. It's a small helpful hint, written in mile-high flashing neon letters, that it's a really bad idea.

This is because recoverable text passwords are incredibly difficult to keep safe. Passing them through variables, files, or arguments opens them up to interception in a huge variety of ways.

ssh has a much better alternative built right in: keys. Just having the right files in the right places lets ssh go through fully automatically with no modification to your program. See passwordless ssh.
Last edited by Corona688; 11-03-2011 at 03:37 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Calling an Expect script from a Webpage using PHP

I have a webpage that is in HTML and PHP. In PHP I have tried using exec, system, shell_exec and passthru functions to call an Expect Script file (temp.exp). This Expect file spawns a telnet session that uses "expect/send" commands to retrieve information from an environmental unit (not a normal... (0 Replies)
Discussion started by: CCUSmith
0 Replies

2. Shell Programming and Scripting

Calling Expect script in Perl...

I call a EXPECT script from my perl script with machine IP and a FIle. The script logins to the machine and exports the value. The values to be exported or stored in a file. I have close to 10 machines and I have created 10 files and pass the corresponding files in command line, Now I could like... (4 Replies)
Discussion started by: ramkriz
4 Replies

3. UNIX for Advanced & Expert Users

How to set a label/number for a function in a shells script

Can any one let me know like how cn i set an label or number for each function whihc are there in an shells script: for example cd /opt/qcom/test/ function1() function2() function3() ------- i ahe a script like this .now i want to count each of this function like 1, 2, 3,............... (3 Replies)
Discussion started by: lalitka
3 Replies

4. Shell Programming and Scripting

calling expect script in ksh is failing via cron

I'm calling an expect script via a ksh script in cron and it is failing. The script runs fine if i run it manually. Does anyone know if it is an issue with compatibilty and if there is a way around it? (2 Replies)
Discussion started by: bhatia
2 Replies

5. Shell Programming and Scripting

SHELL SCRIPT Function Calling Another Function Please Help...

This is my function which is creating three variables based on counter & writing these variable to database by calling another function writeRecord but only one record is getting wrote in DB.... Please advise ASAP...:confused: function InsertFtg { FTGSTR="" echo "Saurabh is GREAT $#" let... (2 Replies)
Discussion started by: omkar.sonawane
2 Replies

6. Shell Programming and Scripting

Calling Shell Script from Expect...

Hi there, I need some help regarding the execution of shell script from expect as the method I am trying is giving me error. I wrote an shell program which takes two arguments to telnet to a device and saves the output in a file. Following is the script.... (0 Replies)
Discussion started by: cyberparanoid
0 Replies

7. Shell Programming and Scripting

Calling Expect Script - Telnet

Hi All, I have an Expect script which logs into Cisco switch, performs a show interface command. I want to read a file of ip addresses which will be passed to the expect script. The script to read the file works, the expect script works on it's own but when i call the 'expect' script from the... (12 Replies)
Discussion started by: trinak96
12 Replies

8. Programming

Calling expect script inside another expect

Hi, Am very new to expect scripting.. Can You please suggest me how to call an expect script inside another expect script.. I tried with spawn /usr/bin/ksh send "expect main.exp\r" expect $root_prompt and spawn /usr/bin/ksh send "main.exp\r" expect $root_prompt Both... (1 Reply)
Discussion started by: Priya Amaresh
1 Replies

9. Programming

Calling another expect script inside an expect script

I have an expect script called remote that I want to call from inside my expect script called sudoers.push, here is the code that is causing me issues: set REMOTE "/root/scripts/remote" ... log_user 1 send_user "Executing remote script as $user...\n" send_user "Command to execute is: $REMOTE... (1 Reply)
Discussion started by: brettski
1 Replies

10. Shell Programming and Scripting

Password check in bash script calling on expect

password check in bash script calling on expect Background: I have to copy a file from one server, to over 100 servers in a test environment. once the file is copied, it requires to have the permissions on the file changed/verified. These are all linux servers. most of them have the same... (1 Reply)
Discussion started by: 2legit2quit
1 Replies

LEARN ABOUT MOJAVE

ssh-keysign

SSH-KEYSIGN(8)						    BSD System Manager's Manual 					    SSH-KEYSIGN(8)

NAME

     ssh-keysign -- ssh helper program for host-based authentication

SYNOPSIS

     ssh-keysign

DESCRIPTION

     ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication.

     ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting
     EnableSSHKeysign to ``yes''.

     ssh-keysign is not intended to be invoked by the user, but from ssh(1).  See ssh(1) and sshd(8) for more information about host-based authen-
     tication.

FILES

     /etc/ssh/ssh_config
	     Controls whether ssh-keysign is enabled.

     /etc/ssh/ssh_host_dsa_key
     /etc/ssh/ssh_host_ecdsa_key
     /etc/ssh/ssh_host_ed25519_key
     /etc/ssh/ssh_host_rsa_key
	     These files contain the private parts of the host keys used to generate the digital signature.  They should be owned by root, read-
	     able only by root, and not accessible to others.  Since they are readable only by root, ssh-keysign must be set-uid root if host-
	     based authentication is used.

     /etc/ssh/ssh_host_dsa_key-cert.pub
     /etc/ssh/ssh_host_ecdsa_key-cert.pub
     /etc/ssh/ssh_host_ed25519_key-cert.pub
     /etc/ssh/ssh_host_rsa_key-cert.pub
	     If these files exist they are assumed to contain public certificate information corresponding with the private keys above.

SEE ALSO

     ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)

HISTORY

     ssh-keysign first appeared in OpenBSD 3.2.

AUTHORS

     Markus Friedl <markus@openbsd.org>

BSD
								 February 17, 2016							       BSD
All times are GMT -4. The time now is 09:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy