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Top Forums UNIX for Advanced & Expert Users How to pass password as a variable for sshpass authentication? Post 303034196 by sam@sam on Sunday 21st of April 2019 10:25:45 AM
Old 04-21-2019
How to pass password as a variable for sshpass authentication?

Using below below command i'm able to connect or authenticate server, In below command password contains special characters
Code:
sshpass -v  -p 'ASJBA%hs76)#' ssh -q -o ConnectTimeout=5 hostname

But If I pass password as a variable I'm not able to connect or authenticate server, can you please help me to fix this
Code:
sshpass -v  -p $password ssh -q -o ConnectTimeout=5 hostname

Code:
cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4

 

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libssh2_userauth_password_ex(3) 				  libssh2 manual				   libssh2_userauth_password_ex(3)

NAME
libssh2_userauth_password_ex - authenticate a session with username and password SYNOPSIS
#include <libssh2.h> int libssh2_userauth_password_ex(LIBSSH2_SESSION *session, const char *username, unsigned int username_len, const char *password, unsigned int password_len, LIBSSH2_PASSWD_CHANGEREQ_FUNC((*passwd_change_cb))); #define libssh2_userauth_password(session, username, password) libssh2_userauth_password_ex((session), (username), strlen(username), (password), strlen(password), NULL) DESCRIPTION
session - Session instance as returned by libssh2_session_init_ex(3) username - Name of user to attempt plain password authentication for. username_len - Length of username parameter. password - Password to use for authenticating username. password_len - Length of password parameter. passwd_change_cb - If the host accepts authentication but requests that the password be changed, this callback will be issued. If no call- back is defined, but server required password change, authentication will fail. Attempt basic password authentication. Note that many SSH servers which appear to support ordinary password authentication actually have it disabled and use Keyboard Interactive authentication (routed via PAM or another authentication backed) instead. RETURN VALUE
Return 0 on success or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se. ERRORS
Some of the errors this function may return include: LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed. LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket. LIBSSH2_ERROR_PASSWORD_EXPIRED - IBSSH2_ERROR_AUTHENTICATION_FAILED - failed, invalid username/password or public/private key. SEE ALSO
libssh2_session_init_ex(3) libssh2 0.15 1 Jun 2007 libssh2_userauth_password_ex(3)
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