Re: Couldn't get write lock on /var/spool/mail/roman! on RH 7.1

[Oops! I accidentally replied off-list. My apologies, Roman - I did not 
intend to do that. Reposted to the list. -Tod.]

Short answer:

  Lean how file and directory permissions work.

Long answer:

Make sure /var/spool/mail is owned by group "mail" (it probably is). 
The, do a "chmod g+rws /var/spool/mail" and, finally, "chmod g+rw 
/var/spool/mail/*" (without the quotes in both cases).

What's wrong:

  You're running neomail sgid (sed-groupid), not suid (set-userid), and 
telling it to operate on files it doesn't have permission to operate on.

What fixed it:
  We made sure that /var/spool/mail had group rwead and write 
permission, and also set the "sticky" (sgid) bit on the directory - 
unless a program deliberatly changes it's umask (man -a umask), any 
files created in /var/spool/mail will ALSO be group read/writeable. 
Finally, we made existing files group read/writeable in that directory.

Now:
  Go learn how file & directory permissions work. You'll be glad you did.

  Tod.


Roman Melihhov wrote:
> NEOMAIL ERROR
> 
> Couldn't get write lock on /var/spool/mail/roman!
> 
> 
> Thats the error message.
> 
> [root@www mail]# ls -al /var/spool/mail
> total 11328
> -rw-------    1 roman    mail         2984 May  4 14:18 roman
> ....
> 
> neomail.pl ownership and permissions set as described in AFTER INSTALL
> 
> [root@www mail]# ls -al /home/blakout/cgi-bin/neomail.pl
> -rwxr-sr-x    1 root     mail       120429 May  3 21:49 neomail.pl
> 
> 
> Where could I possibly look further or where have I possibly gone wrong?
> 
> Ideas appreciated,
> Roman.
> 
> 
> 
> 
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