07-23-2006
Quote:
Originally Posted by alphakg
I am using unix from rootshell.be using puTTY on windows xp.
$ ls -l
total 104
-rwxr-xr-x free 11595 May 23 00:10 a.out
-rwxr-xr-x free 11595 May 23 17:57 hello2
-rw-r--r-- free 73 May 22 03:09 hello2.c
$ cc -o hello2 hello2.c
$ hello2
bash: ./hello2: Permission denied
$ ./hello2
bash: ./hello2: Permission denied
$ a.out
bash: ./a.out: Permission denied
alphakg, I don't see any thing wrong on the way you compile and try to run your program; everything looks fine. Note that you are trying to run the executable on a unix platform that is offered to public. As far as I know, the sys admins on such systems tend to restrict public running some executables on their systems. Try contacting your system administrator and bringing up your problem to him...
WAIT.. I guess I figured that out..
See what I found on the
http://rootshell.be website (this is the unix account you're using):
What we do
NOT allow?
* IRC bots, proxies;
* Background processes;
* Spam;
* Storage of illegal material;
*
Compilation/execution of your own application
This is why your program is not executing, because they restricted their system, as I mentioned above..
Do you not have access to any other unix account; such as one from your school? Or, you might also want to install Linux on one of your partitions..
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LEARN ABOUT BSD
pam_acct_mgmt
PAM_ACCT_MGMT(3) Linux-PAM Manual PAM_ACCT_MGMT(3)
NAME
pam_acct_mgmt - PAM account validation management
SYNOPSIS
#include <security/pam_appl.h>
int pam_acct_mgmt(pam_handle_t *pamh, int flags);
DESCRIPTION
The pam_acct_mgmt function is used to determine if the users account is valid. It checks for authentication token and account expiration
and verifies access restrictions. It is typically called after the user has been authenticated.
The pamh argument is an authentication handle obtained by a prior call to pam_start(). The flags argument is the binary or of zero or more
of the following values:
PAM_SILENT
Do not emit any messages.
PAM_DISALLOW_NULL_AUTHTOK
The PAM module service should return PAM_NEW_AUTHTOK_REQD if the user has a null authentication token.
RETURN VALUES
PAM_ACCT_EXPIRED
User account has expired.
PAM_AUTH_ERR
Authentication failure.
PAM_NEW_AUTHTOK_REQD
The user account is valid but their authentication token is expired. The correct response to this return-value is to require that the
user satisfies the pam_chauthtok() function before obtaining service. It may not be possible for some applications to do this. In such
cases, the user should be denied access until such time as they can update their password.
PAM_PERM_DENIED
Permission denied.
PAM_SUCCESS
The authentication token was successfully updated.
PAM_USER_UNKNOWN
User unknown to password service.
SEE ALSO
pam_start(3), pam_authenticate(3), pam_chauthtok(3), pam_strerror(3), pam(7)
Linux-PAM Manual 06/04/2011 PAM_ACCT_MGMT(3)