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1. Shell Programming and Scripting
Hi,
I have used expdp for datapump. The .dmp file is created by the "oracle" user.
my requirement is to make a zipped file of this .dmp file.
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2. Shell Programming and Scripting
HI,
I wann give permissions to a folder which contains multiple folders.....
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3. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a shell script that gives a passed file the "755" access permissions. The shell script should:
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Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
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Write a shell script that gives a passed file the "755" access permissions. The shell script should:
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5. Shell Programming and Scripting
does anyone know how to write a script that will change file permissions. because the Admin blocked me from altering any of my files im only allowed to read and i heard a script like this can bypass it but i dont know how to write it.
Display current users. Display user Ids only.
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6. Cybersecurity
I'm doing a security sweep of a Sun Sol 5.8 system. The file: /dev/console, which links to /devices/pseudo/cn@0:console, has the following perms: crw--w--w- I would like to get rid of the world write permissions. I can change the file permissions, but as soon as log back in, they are changed... (4 Replies)
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7. UNIX for Dummies Questions & Answers
if I have a file set to permisions 444 (r-- r-- r--) should anyone other than the owner and root be able to change these permissions or delete the file.
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8. UNIX for Dummies Questions & Answers
Is there a way to change a unix user's default file permissions so that when he creates a file, by default permissions are 777???
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9. UNIX for Dummies Questions & Answers
How can I change the default permissions that are assigned when I create a file? (By default the file has: -rw-r--r-- ..... I'd like it to be -rw-r-----
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10. UNIX for Advanced & Expert Users
Hello !
When I connect to a RH FTP server, the files I transfer (from my "windows computer") to this server have the following permissions : -rw------- but I would like those files to have the following permissions : - rw-rw-r-x
How can I do that ??? :)
Thanks for your help !
G. (6 Replies)
Discussion started by: guix
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KEYCTL_SETPERM(3) Linux Key Management Calls KEYCTL_SETPERM(3)
NAME
keyctl_setperm - Change the permissions mask on a key
SYNOPSIS
#include <keyutils.h>
long keyctl_setperm(key_serial_t key, key_perm_t perm);
DESCRIPTION
keyctl_setperm() changes the permissions mask on a key.
A process that does not have the SysAdmin capability may not change the permissions mask on a key that doesn't have the same UID as the
caller.
The caller must have setattr permission on a key to be able change its permissions mask.
The permissions mask is a bitwise-OR of the following flags:
KEY_xxx_VIEW
Grant permission to view the attributes of a key.
KEY_xxx_READ
Grant permission to read the payload of a key or to list a keyring.
KEY_xxx_WRITE
Grant permission to modify the payload of a key or to add or remove links to/from a keyring.
KEY_xxx_SEARCH
Grant permission to find a key or to search a keyring.
KEY_xxx_LINK
Grant permission to make links to a key.
KEY_xxx_SETATTR
Grant permission to change the ownership and permissions attributes of a key.
KEY_xxx_ALL
Grant all the above.
The 'xxx' in the above should be replaced by one of:
POS Grant the permission to a process that possesses the key (has it attached searchably to one of the process's keyrings).
USR Grant the permission to a process with the same UID as the key.
GRP Grant the permission to a process with the same GID as the key, or with a match for the key's GID amongst that process's Groups
list.
OTH Grant the permission to any other process.
Examples include: KEY_POS_VIEW, KEY_USR_READ, KEY_GRP_SEARCH and KEY_OTH_ALL.
User, group and other grants are exclusive: if a process qualifies in the 'user' category, it will not qualify in the 'groups' category;
and if a process qualifies in either 'user' or 'groups' then it will not qualify in the 'other' category.
Possessor grants are cumulative with the grants from the 'user', 'groups' and 'other' categories.
RETURN VALUE
On success keyctl_setperm() returns 0 . On error, the value -1 will be returned and errno will have been set to an appropriate error.
ERRORS
ENOKEY The specied key does not exist.
EKEYEXPIRED
The specified key has expired.
EKEYREVOKED
The specified key has been revoked.
EACCES The named key exists, but does not grant setattr permission to the calling process.
LINKING
This is a library function that can be found in libkeyutils. When linking, -lkeyutils should be specified to the linker.
SEE ALSO
keyctl(1),
add_key(2),
keyctl(2),
request_key(2),
keyctl_get_keyring_ID(3),
keyctl_join_session_keyring(3),
keyctl_update(3),
keyctl_revoke(3),
keyctl_chown(3),
keyctl_describe(3),
keyctl_clear(3),
keyctl_link(3),
keyctl_unlink(3),
keyctl_search(3),
keyctl_read(3),
keyctl_instantiate(3),
keyctl_negate(3),
keyctl_set_reqkey_keyring(3),
keyctl_set_timeout(3),
keyctl_assume_authority(3),
keyctl_describe_alloc(3),
keyctl_read_alloc(3),
request-key(8)
Linux 4 May 2006 KEYCTL_SETPERM(3)