05-01-2008
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I am setting up an area on a unix server where multiple people will be editing web pages. Can anyone tell me how to set it up the directory and subdirectories so that when a user creates a new file, it defaults to permissions of 664 or 775?
I've tried using umask but from what I can... (1 Reply)
Discussion started by: robbieg
1 Replies
2. HP-UX
Hi,
I am a Unix Admin. I have to give the permissions to a user for creating new file in a directory in HP-Ux 11.11 system since he cannot able to create a new file in the directory.
Thanks in advance.
Mike (3 Replies)
Discussion started by: Mike1234
3 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I'm in the process of writing a system (in Java) where a user can register to become a member of a website.
When they register, a collection of directories and files get created by the application.
For example if a user with the name 'fred' registered they would get the following
drwxr-xr-x... (0 Replies)
Discussion started by: andrewpmoore
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4. UNIX for Dummies Questions & Answers
Hi all,
I have user called "Z". The home directory is /home/Z. I have another directory /home/Z/OP. Within /home/Z/OP, i have 2 directories
/home/Z/OP/OP1 and /home/Z/OP2.
I want to restrict access for Z to only access
/home/Z/OP and
/home/Z/OP1 and
/home/Z/OP2.
What kind of... (4 Replies)
Discussion started by: new2ss
4 Replies
5. UNIX for Dummies Questions & Answers
I'm trying to setup a directory structure for my staff which enables them full access to files in the directories with their name, and have access to anything in the shared directory. The directory structure looks like this:
root@www10 # ls -l
total 56
drwxr-xr-x 7 internal internal 4096... (3 Replies)
Discussion started by: v_greg
3 Replies
6. UNIX for Advanced & Expert Users
What would be a practical way of making sure files I upload to/edit in a particular directory on a server always have the correct group permissions?
I'm forgetful, so I try to automate things like chgrp'ing the files when I'm done. I could write a script to be run by cron. Is that the only way,... (2 Replies)
Discussion started by: mregine
2 Replies
7. UNIX for Advanced & Expert Users
Hi,
I have written a shell script which calls a java program which reads properties from a configuration file and writes to a log file for each session.However the customer wants that the user should not be able to open/edit the configuration file or the log files meaning they should not... (4 Replies)
Discussion started by: jayadrath
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8. Shell Programming and Scripting
I've got a number of people sending files to me in different directory structures, and users on many different groups who need access to these incoming paths.
My problem is that umask assumes a default of 666 for files. No execute bit, meaning that my users can't even see the incoming folders.... (2 Replies)
Discussion started by: Karunamon
2 Replies
9. Solaris
Trying to figure out the best method of security for oracle user accounts. In Solaris 10 they are set as regular users but have nologin set forcing the dev's to login as themselves and then su to the oracle users.
In Solaris11 we have the option of making it a role because RBAC is enabled but... (1 Reply)
Discussion started by: os2mac
1 Replies
10. UNIX for Dummies Questions & Answers
I'm working in a linux server where wrappers are executed by multiple users of different groups. The log and output files are created with 554 permissions by default. This is stopping other users to run the wrappers unless the log and output files are deleted or given 777 permission. Setting SUID... (1 Reply)
Discussion started by: praveenpa
1 Replies
LEARN ABOUT LINUX
fchmodat
FCHMODAT(2) Linux Programmer's Manual FCHMODAT(2)
NAME
fchmodat - change permissions of a file relative to a directory file descriptor
SYNOPSIS
#include <fcntl.h> /* Definition of AT_* constants */
#include <sys/stat.h>
int fchmodat(int dirfd, const char *pathname, mode_t mode, int flags);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
fchmodat():
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_ATFILE_SOURCE
DESCRIPTION
The fchmodat() system call operates in exactly the same way as chmod(2), except for the differences described in this manual page.
If the pathname given in pathname is relative, then it is interpreted relative to the directory referred to by the file descriptor dirfd
(rather than relative to the current working directory of the calling process, as is done by chmod(2) for a relative pathname).
If pathname is relative and dirfd is the special value AT_FDCWD, then pathname is interpreted relative to the current working directory of
the calling process (like chmod(2)).
If pathname is absolute, then dirfd is ignored.
flags can either be 0, or include the following flag:
AT_SYMLINK_NOFOLLOW
If pathname is a symbolic link, do not dereference it: instead operate on the link itself. This flag is not currently implemented.
RETURN VALUE
On success, fchmodat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORS
The same errors that occur for chmod(2) can also occur for fchmodat(). The following additional errors can occur for fchmodat():
EBADF dirfd is not a valid file descriptor.
EINVAL Invalid flag specified in flags.
ENOTDIR
pathname is relative and dirfd is a file descriptor referring to a file other than a directory.
ENOTSUP
flags specified AT_SYMLINK_NOFOLLOW, which is not supported.
VERSIONS
fchmodat() was added to Linux in kernel 2.6.16.
CONFORMING TO
POSIX.1-2008.
NOTES
See openat(2) for an explanation of the need for fchmodat().
SEE ALSO
chmod(2), openat(2), path_resolution(7), symlink(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2009-12-13 FCHMODAT(2)