On Wed, 30 Mar 2011 11:11:08 +0200, Stanisław Findeisen wrote:
What are the correct mailbox file mode bitmasks in /var/mail? This is
what I have:
:/var/mail$ ls -al
total 20
drwxrwsr-x 2 root mail 4096 2011-03-30 10:00 .
drwxr-xr-x 16 root root 4096 2010-01-14 20:21 ..
-rw--- 1 root mail 582 2010-04-13 21:31 root
-rw--- 1 u1 mail 528 2011-01-31 09:56 u1
-rw-rw 1 u2 mail 528 2011-03-30 10:00 u2
I also have such perms for my mbox file (with Exim):
sm01@stt008:~$ ls -al /var/mail
total 0
drwxrwsr-x 2 root mail 72 feb 15 22:03 .
drwxr-xr-x 15 root root 360 nov 14 2009 ..
-rw-rw 1 sm01 mail 0 feb 15 22:03 sm01
Is this correct?? The u1 user account is disabled, while u2 is active.
The 'mail' group seems to have no users.
sm01@stt008:~$ grep mail /etc/group
mail:x:8:
I was also looking at Access, Modify and Change times of u2 file using
stat utility. It looks that Modify and Change times get updated on new
mail coming in (Postfix) (Access time remains the same), while all 3
get updated on mail being pop3 (dovecot). If there is no new mail to
pop3, then the timestamps do not change. I thought Access is about read
or write, and Modify is about metadata (name, mode...) modification??!
What is going on?
I am running 5.0.8 (Lenny).
sm01@stt008:~$ stat /var/mail/sm01
File: «/var/mail/sm01»
Size: 0 Blocks: 0 IO Block: 4096 fichero
regular vacío
Device: 803h/2051d Inode: 58853 Links: 1
Access: (0660/-rw-rw) Uid: ( 1000/sm01) Gid: (8/mail)
Access: 2011-03-30 13:58:53.0 +0200
Modify: 2011-03-30 13:47:20.0 +0200
Change: 2011-03-30 13:47:20.0 +0200
sm01@stt008:~$ cat /var/mail/sm01
sm01@stt008:~$ stat /var/mail/sm01
File: «/var/mail/sm01»
Size: 0 Blocks: 0 IO Block: 4096 fichero
regular vacío
Device: 803h/2051d Inode: 58853 Links: 1
Access: (0660/-rw-rw) Uid: ( 1000/sm01) Gid: (8/mail)
Access: 2011-03-30 13:59:07.0 +0200
Modify: 2011-03-30 13:47:20.0 +0200
Change: 2011-03-30 13:47:20.0 +0200
The file successfully alters access data after issuing the cat command.
sm01@stt008:~$ mail sm01 -s test
test
.
Cc:
sm01@stt008:~$ stat /var/mail/sm01
File: «/var/mail/sm01»
Size: 534 Blocks: 8 IO Block: 4096 fichero
regular
Device: 803h/2051d Inode: 58853 Links: 1
Access: (0660/-rw-rw) Uid: ( 1000/sm01) Gid: (8/mail)
Access: 2011-03-30 13:59:07.0 +0200
Modify: 2011-03-30 13:59:51.0 +0200
Change: 2011-03-30 13:59:51.0 +0200
But does not change when it receives new mail...
sm01@stt008:~$ mail
sm01@stt008:~$ stat /var/mail/sm01
File: «/var/mail/sm01»
Size: 0 Blocks: 0 IO Block: 4096 fichero
regular vacío
Device: 803h/2051d Inode: 58853 Links: 1
Access: (0660/-rw-rw) Uid: ( 1000/sm01) Gid: (8/mail)
Access: 2011-03-30 14:00:58.0 +0200
Modify: 2011-03-30 14:02:10.0 +0200
Change: 2011-03-30 14:02:10.0 +0200
And is again altered when someone reads the file.
Greetings,
--
Camaleón
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