Logging/service users comes to mind.  Have a user specifically to own a service, and the service needs to write to a file, but there's no reason to give it read access to all your files since you read them as your own user or as root.  That way, if someone has an exploit for your apache service readily available, they can't see your entire connection history, they can just deface your website or nuke it--keeps user data private even if you get compromised.

On Sun, Dec 21, 2014 at 1:12 AM, Michael Havens <bmike1@gmail.com> wrote:
is there a purpose to giving a file 'write' permission but not 'read'.

:-)~MIKE~(-:

On Sat, Dec 20, 2014 at 3:52 PM, druid001 . <dtroyer1@gmail.com> wrote:
the "d" means the directory. the first rwx is for the "owner" and means he has complete control over reading, writing and executing. The next three, r-x is for the "group", and means they can read the file and execute it but not modify it, and the last is for the "anyone" category and means that they too can only read and execute the file.

On Sat, Dec 20, 2014 at 1:29 PM, Bob Wallace <bob.wallace39@gmail.com> wrote:
On 12/20/2014 01:04 PM, Michael Havens wrote:
bmike1@c521 ~ $ ls -l ~
total 64
drwxr-xr-x  2 bmike1 bmike1  4096 Dec 18 20:15 Desktop
--etc--

in the above ls output what do the third and fourt fields represent?
.
.
.
oh yeah. 'owner' and 'group'! is it in that order?
:-)~MIKE~(-:

Following that first (single) character/field, it's owner, group, anyone for the three sets of characters, rwx, in each of those positions.

-Bob


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