02-27-2015
And OpenSSH tries really hard to prompt for a password to the actual terminal.
Probably to prevent insecure implementations like scripted password access...
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
how do i encrypt and decrypt a password (2 Replies)
Discussion started by: sanwish
2 Replies
2. Shell Programming and Scripting
Dear Experts,
I am using one script name :volume.sh and its written in bash shell script.
I just want to encrypt the script so that any one else cannot see it.
please tell me the commands how to encrypt the script as well as to decrypt it.
Regards,
SHARY (9 Replies)
Discussion started by: shary
9 Replies
3. Shell Programming and Scripting
How to encrypt and decrypt a file using unix Command?
Can any one help me? (2 Replies)
Discussion started by: laknar
2 Replies
4. Shell Programming and Scripting
Hi,
I have written a shell script in unix for my customer. Now I want to make it only execute and not to read/write. Can anybody help me how to set password protect/encript my script.
Thanks
Suresh (3 Replies)
Discussion started by: suresh3566
3 Replies
5. Shell Programming and Scripting
Hi,
I have run the below script which is connected to db2 v9.5. There is no issue. The only problem is how to encrypt the dbpwd?
#!/bin/ksh
#---- Set Environment
dbalias="dev1db"
dbuser="user1"
dbpwd="password"
#---- Connect to the Database
cd /opt/ibm/db2/V9.5/bin
db2 "connect to... (1 Reply)
Discussion started by: lookinginfo
1 Replies
6. Shell Programming and Scripting
Hi
Please see if you have come across any aprts of this. I can read, integrate and syntehsixe. Any help you could offer me would be super. thanks in advance!
Good day.
Thank you for your response in this matter. Here are some further details:
1) scripting is to be in BASH... (1 Reply)
Discussion started by: cdc01
1 Replies
7. Shell Programming and Scripting
I have script for all oracle prod db. I have hard coded the username / password. I need a mechanism to encode and decode the username / password in a shell script.
Another challenge is I use the username and password in a Select command for oracle DB. How can call the decrypted... (2 Replies)
Discussion started by: ilugopal
2 Replies
8. Shell Programming and Scripting
Hi All,
I have stored Oracle database passwords in a hidden file - .pass_file.
My shell script reads the hidden file, gets the password and then logs in to the Oracle database and runs some SQL script.
My requirement is:
I need to provide the shell script to be executed by someone else. So,... (1 Reply)
Discussion started by: sunpraveen
1 Replies
9. Shell Programming and Scripting
Hello,
I have the following UNIX shell script which connects to the teradata database and executes the SQL Queries. For this, I am passing database name, username and password. I don't want to reveal my password to anyone. So, is there any way that I can encrypt my password and read the... (2 Replies)
Discussion started by: ronitreddy
2 Replies
10. UNIX for Beginners Questions & Answers
Hello,
I have few files on unix which are payroll related and I need them to encrypt with password so others wouldn't see the data. I use ETL tool and would like to know the unix command that does encryption/decryption to use in the ETL.
Thank you,
Sri (3 Replies)
Discussion started by: eskay
3 Replies
LEARN ABOUT REDHAT
getpass
GETPASS(3) Linux Programmer's Manual GETPASS(3)
NAME
getpass - get a password
SYNOPSIS
#include <unistd.h>
char *getpass( const char * prompt );
DESCRIPTION
This function is obsolete. Do not use it.
The getpass() function opens /dev/tty (the controlling terminal of the process), outputs the string prompt, turns off echoing, reads one
line (the "password"), restores the terminal state and closes /dev/tty again.
RETURN VALUE
The function getpass returns a pointer to a static buffer containing the (first PASS_MAX bytes of) the password without the trailing new-
line, terminated by a NUL. This buffer may be overwritten by a following call. On error, the terminal state is restored, errno is set
appropriately, and NULL is returned.
ERRORS
The function may fail if
ENXIO The process does not have a controlling terminal.
NOTES
For libc4 and libc5, the prompt is not written to /dev/tty but to stderr. Moreover, if /dev/tty cannot be opened, the password is read
from stdin. The static buffer has length 128 so that only the first 127 bytes of the password are returned. While reading the password,
signal generation (SIGINT, SIGQUIT, SIGSTOP, SIGTSTOP) is disabled and the corresponding characters (usually control-C, control-, control-
Z and control-Y) are transmitted as part of the password. Since libc 5.4.19 also line editing is disabled, so that also backspace and the
like will be seen as part of the password.
For glibc2, if /dev/tty cannot be opened, the prompt is written to stderr and the password is read from stdin. There is no limit on the
length of the password. Line editing is not disabled.
According to the SUSv2, the value of PASS_MAX must be defined in <limits.h> in case it is smaller than 8, and can in any case be obtained
using sysconf(_SC_PASS_MAX). However, POSIX.2 withdraws the constants PASS_MAX and _SC_PASS_MAX, and the function getpass (). Libc4 and
libc5 have never supported PASS_MAX or _SC_PASS_MAX. Glibc2 accepts _SC_PASS_MAX and returns BUFSIZ (e.g., 8192).
FILES
/dev/tty
SEE ALSO
crypt(3)
HISTORY
A getpass function appeared in Version 7 AT&T UNIX.
BUGS
The calling process should zero the password as soon as possible to avoid leaving the cleartext password visible in the process's address
space.
Linux Manpage 2000-12-05 GETPASS(3)