What is each group's permissions, and what is the “ranking” of each group (most privileged to least)?

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I'm asking about who inherits permissions from who, along with any additional permissions for the group as well?



For example: "nogroup - no permissions,...(Insert other groups here)..., wheel - inherits from nogroup, (Insert other groups here),...(any "higher up" groups continue on).










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  • you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
    – MelBurslan
    Mar 2 '16 at 22:33















0














I'm asking about who inherits permissions from who, along with any additional permissions for the group as well?



For example: "nogroup - no permissions,...(Insert other groups here)..., wheel - inherits from nogroup, (Insert other groups here),...(any "higher up" groups continue on).










share|improve this question























  • you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
    – MelBurslan
    Mar 2 '16 at 22:33













0












0








0







I'm asking about who inherits permissions from who, along with any additional permissions for the group as well?



For example: "nogroup - no permissions,...(Insert other groups here)..., wheel - inherits from nogroup, (Insert other groups here),...(any "higher up" groups continue on).










share|improve this question















I'm asking about who inherits permissions from who, along with any additional permissions for the group as well?



For example: "nogroup - no permissions,...(Insert other groups here)..., wheel - inherits from nogroup, (Insert other groups here),...(any "higher up" groups continue on).







ubuntu permissions freebsd group






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edited Dec 20 '18 at 7:26









Rui F Ribeiro

39k1479130




39k1479130










asked Mar 2 '16 at 22:22









superuser1995

31




31











  • you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
    – MelBurslan
    Mar 2 '16 at 22:33
















  • you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
    – MelBurslan
    Mar 2 '16 at 22:33















you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
– MelBurslan
Mar 2 '16 at 22:33




you are confusing groups with privilege elevation. Groups do not inherit right from one another. Users obtain rights of the group that they are a member of and these rights are are generally for file and folder access. I think you have something else on your mind. But unless you can clearly state "rights for what" nobody can help you. Are you interested in sudo rights or something similar ?
– MelBurslan
Mar 2 '16 at 22:33










1 Answer
1






active

oldest

votes


















0














There is no ranking or inheritance between groups. All groups are on an equal footing (or to be more precise, mathematically speaking, the privileges of groups are incomparable).



Groups confer privileges indirectly. This happens mainly through file permissions (which make members of a certain group able to access a file, or more rarely unable to access a file). This also happens when programs check group memberships, for example via %group user specifications in the sudo configuration.






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  • So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
    – superuser1995
    Mar 3 '16 at 5:11










  • Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
    – Gilles
    Mar 3 '16 at 10:42










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














There is no ranking or inheritance between groups. All groups are on an equal footing (or to be more precise, mathematically speaking, the privileges of groups are incomparable).



Groups confer privileges indirectly. This happens mainly through file permissions (which make members of a certain group able to access a file, or more rarely unable to access a file). This also happens when programs check group memberships, for example via %group user specifications in the sudo configuration.






share|improve this answer




















  • So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
    – superuser1995
    Mar 3 '16 at 5:11










  • Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
    – Gilles
    Mar 3 '16 at 10:42















0














There is no ranking or inheritance between groups. All groups are on an equal footing (or to be more precise, mathematically speaking, the privileges of groups are incomparable).



Groups confer privileges indirectly. This happens mainly through file permissions (which make members of a certain group able to access a file, or more rarely unable to access a file). This also happens when programs check group memberships, for example via %group user specifications in the sudo configuration.






share|improve this answer




















  • So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
    – superuser1995
    Mar 3 '16 at 5:11










  • Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
    – Gilles
    Mar 3 '16 at 10:42













0












0








0






There is no ranking or inheritance between groups. All groups are on an equal footing (or to be more precise, mathematically speaking, the privileges of groups are incomparable).



Groups confer privileges indirectly. This happens mainly through file permissions (which make members of a certain group able to access a file, or more rarely unable to access a file). This also happens when programs check group memberships, for example via %group user specifications in the sudo configuration.






share|improve this answer












There is no ranking or inheritance between groups. All groups are on an equal footing (or to be more precise, mathematically speaking, the privileges of groups are incomparable).



Groups confer privileges indirectly. This happens mainly through file permissions (which make members of a certain group able to access a file, or more rarely unable to access a file). This also happens when programs check group memberships, for example via %group user specifications in the sudo configuration.







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 3 '16 at 0:13









Gilles

528k12810581583




528k12810581583











  • So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
    – superuser1995
    Mar 3 '16 at 5:11










  • Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
    – Gilles
    Mar 3 '16 at 10:42
















  • So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
    – superuser1995
    Mar 3 '16 at 5:11










  • Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
    – Gilles
    Mar 3 '16 at 10:42















So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
– superuser1995
Mar 3 '16 at 5:11




So, being part of a group will allow you to get those specific permissions (ex: being part of ftp allows you to connect via ftp, sshd group - you can ssh into your box or whatever)? What about the difference between admin and wheel?
– superuser1995
Mar 3 '16 at 5:11












Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
– Gilles
Mar 3 '16 at 10:42




Group names are not standardized, but generally, you don't need to be a member of a group to use SSH or FTP. The sshd group is normally used for internal purposes by the SSH server. I think the ftp group is usually used for anonymous FTP. Ubuntu has a group called admin whose users are allowed to become root via sudo. The wheel group has its own diverse history; there are systems where su checks (user is in wheel OR knows the root password), systems where it checks (user is in wheel AND knows the root password) and systems (e.g. most Linux distros) where wheel has no meaning.
– Gilles
Mar 3 '16 at 10:42

















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