"But what happens when you need more granularity? How do you grant write access to a file to just one specific user who isn't the owner and isn't in the owning group? How do you allow two different groups read access, but only one of them write access? How do you ensure files created in a shared directory automatically get specific permissions for a certain team?"
"We have already discussed in the previous two articles about file and folder permissions along with special permissions that are supported in linux. The permissions are effective for many scenarios. But what happens when you need more granularity? Trying to juggle group memberships for these cases quickly becomes a nightmare. This is where Access Control Lists (ACLs) come in. They provide a more flexible, fine-grained permission mechanism that extends the traditional ugo/rwx model."
Traditional file and folder permissions and special permissions in Linux handle many use cases but lack fine-grained control for some scenarios. Examples include granting write access to a single non-owner, non-group user; permitting two different groups to read while allowing only one to write; and ensuring files created in a shared directory automatically receive team-specific permissions. Managing such needs by adjusting group memberships becomes complex and error-prone. Access Control Lists (ACLs) offer a solution by extending the standard user/group/other (ugo/rwx) model. ACLs enable more flexible, fine-grained permission assignments per user and per group.
Read at Medium
Unable to calculate read time
Collection
[
|
...
]