Re: Root sudo? (was Re: Cron Job Failure)
From: Allen Chen (achen_at_harbourfrontcentre.com)
Date: 04/27/05
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Date: Wed, 27 Apr 2005 11:14:38 -0400 To: General Red Hat Linux discussion list <redhat-list@redhat.com>
Ed Wilts wrote:
>On Tue, Apr 26, 2005 at 05:28:20PM -0400, Allen Chen wrote:
>
>
>>Mike Burger wrote:
>>
>>
>>
>>>On Tue, April 26, 2005 12:50 pm, Allen Chen said:
>>>
>>>
>>>
>>>
>>>>I got another problem with RedHat 9. The sudo doesn't work any more
>>>>with root. It hangs. But it still works with other users.
>>>>
>>>>
>>>>
>>>Realizing, up front, that this doesn't answer your question, I do have
>>>ask...why would you bother using sudo as root? The whole point of sudo is
>>>to be able to run commands as root...if you're already root, why would you
>>>need to use sudo?
>>>
>>>
>>>
>>I'm not using sudo with root. The problem is that the php script forks a
>>process using sudo.
>>
>>
>
>You stated above that sudo hangs when running as root. Now you're
>saying that it hangs when run as nobody (or whatever your php script is
>running as). Please describe exactly what the problem is you're having
>so that we can have some sort of clue as to how to help you.
>
>Do the symptoms change if you run the script interactively instead of
>from a web browser?
>
>
My php script exec("sudo /usr/local/bin/setpassword $uid $pass"); hangs,
so I did #ps -ef |egrep 'nobody|sudo' and I get these:
> nobody 13526 13523 0 Apr15 ? 00:00:00
> /usr/local/apache/bin/httpd -DSSL
> nobody 13527 13523 0 Apr15 ? 00:00:00
> /usr/local/apache/bin/httpd -DSSL
> nobody 13528 13523 0 Apr15 ? 00:00:00
> /usr/local/apache/bin/httpd -DSSL
> nobody 13636 13523 0 Apr15 ? 00:00:00
> /usr/local/apache/bin/httpd -DSSL
> root 13914 13526 0 Apr15 ? 00:00:00 sudo
> /usr/local/samba/bin/setpassword.exp aaa asdasd
I dont't know why the last line above is running as root. It should be
nobody. Because apache is running as nobody.
The sudoer file has a line like nobody ALL= (ALL) NOPASSWD: ALL
and another line like root ALL= (ALL) ALL
So when I login as root and test sudo command, it hangs. Everything was
fine before.
Also when I login as root and run command: strace sudo ls, it hangs at
the last line below:
_llseek(3, 0, [0], SEEK_SET) = 0
setresuid32(0xffffffff, 0, 0xffffffff) = 0
brk(0) = 0x8066000
brk(0x8067000) = 0x8067000
brk(0) = 0x8067000
brk(0x806b000) = 0x806b000
ioctl(3, SNDCTL_TMR_TIMEBASE, 0xbfffe250) = -1 ENOTTY (Inappropriate
ioctl for device)
read(3, "# sudoers file.\n#\n# This file MU"..., 8192) = 690
read(3, "", 4096) = 0
read(3, "", 8192) = 0
ioctl(3, SNDCTL_TMR_TIMEBASE, 0xbfffe230) = -1 ENOTTY (Inappropriate
ioctl for device)
close(3) = 0
munmap(0x40017000, 4096) = 0
setresuid32(0, 0, 0) = 0
brk(0) = 0x806b000
brk(0x806d000) = 0x806d000
time([1114614576]) = 1114614576
rt_sigprocmask(SIG_SETMASK, NULL, [RTMIN], 8) = 0
rt_sigsuspend([]
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- Previous message: Darryl W. DeLao Jr.: "Re: MySQL"
- In reply to: Ed Wilts: "Re: Root sudo? (was Re: Cron Job Failure)"
- Next in thread: Mike Burger: "Re: Root sudo? (was Re: Cron Job Failure)"
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