/usr/bin/updatedb没有打开文件的权限,怎么回事?

ejeker

我装了CentOS6.3，用root用户运行的。每隔一段时间，终端里面就会有提示:

1. 
   
2. You have new mail in /var/spool/mail/root
   

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然后我用mail命令看到一堆信息都是Permission denied错误。

1. 
   
2. 
   
3. # mail
   
4. Heirloom Mail version 12.4 7/29/08.  Type ? for help.
   
5. "/var/spool/mail/root": 60 messages 8 new 36 unread
   
6. U 51 Anacron               Wed Jul 24 03:12  18/732   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
   
7. U 52 Mail Delivery System  Wed Jul 24 09:02  77/2547  "Undelivered Mail Returned to Sender"
   
8. >N 53 Anacron               Thu Jul 25 03:43  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
   
9. N 54 Anacron               Fri Jul 26 03:27  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
   
10. N 55 Anacron               Sat Jul 27 03:49  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
11. N 56 Anacron               Sun Jul 28 03:41  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
12. N 57 Anacron               Mon Jul 29 04:06  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
13. N 58 Anacron               Tue Jul 30 03:46  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
14. N 59 Anacron               Wed Jul 31 03:49  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
15. N 60 Anacron               Thu Aug  1 03:35  17/722   "Anacron job 'cron.daily' on dhcp-10-35-12-184"
    
16. &  
    
17. Message 53:
    
18. From root@dhcp-10-35-12-184.localdomain  Thu Jul 25 03:43:05 2013
    
19. Return-Path: <root@dhcp-10-35-12-184.localdomain>
    
20. X-Original-To: root
    
21. Delivered-To: root@dhcp-10-35-12-184.localdomain
    
22. From: Anacron <root@dhcp-10-35-12-184.localdomain>
    
23. To: root@dhcp-10-35-12-184.localdomain
    
24. Content-Type: text/plain; charset="ANSI_X3.4-1968"
    
25. Subject: Anacron job 'cron.daily' on dhcp-10-35-12-184
    
26. Date: Thu, 25 Jul 2013 03:43:04 +0800 (CST)
    
27. Status: R
    
28. 
    
29. /etc/cron.daily/mlocate.cron:
    
30. 
    
31. /usr/bin/updatedb: can not open `/etc/updatedb.conf': Permission denied
    
32. 
    
33. &
    
34. Message 54:
    
35. From root@dhcp-10-35-12-184.localdomain  Fri Jul 26 03:27:03 2013
    
36. Return-Path: <root@dhcp-10-35-12-184.localdomain>
    
37. X-Original-To: root
    
38. Delivered-To: root@dhcp-10-35-12-184.localdomain
    
39. From: Anacron <root@dhcp-10-35-12-184.localdomain>
    
40. To: root@dhcp-10-35-12-184.localdomain
    
41. Content-Type: text/plain; charset="ANSI_X3.4-1968"
    
42. Subject: Anacron job 'cron.daily' on dhcp-10-35-12-184
    
43. Date: Fri, 26 Jul 2013 03:27:03 +0800 (CST)
    
44. Status: R
    
45. 
    
46. /etc/cron.daily/mlocate.cron:
    
47. 
    
48. /usr/bin/updatedb: can not open `/etc/updatedb.conf': Permission denied
    
49. 
    
50. &
    
51. Message 55:
    
52. From root@dhcp-10-35-12-184.localdomain  Sat Jul 27 03:49:52 2013
    
53. Return-Path: <root@dhcp-10-35-12-184.localdomain>
    
54. X-Original-To: root
    
55. Delivered-To: root@dhcp-10-35-12-184.localdomain
    
56. From: Anacron <root@dhcp-10-35-12-184.localdomain>
    
57. To: root@dhcp-10-35-12-184.localdomain
    
58. Content-Type: text/plain; charset="ANSI_X3.4-1968"
    
59. Subject: Anacron job 'cron.daily' on dhcp-10-35-12-184
    
60. Date: Sat, 27 Jul 2013 03:49:51 +0800 (CST)
    
61. Status: R
    
62. 
    
63. /etc/cron.daily/mlocate.cron:
    
64. 
    
65. /usr/bin/updatedb: can not open `/etc/updatedb.conf': Permission denied
    
66. 
    
67. &
    
68. Message 56:
    
69. From root@dhcp-10-35-12-184.localdomain  Sun Jul 28 03:41:29 2013
    
70. Return-Path: <root@dhcp-10-35-12-184.localdomain>
    
71. X-Original-To: root
    
72. Delivered-To: root@dhcp-10-35-12-184.localdomain
    
73. From: Anacron <root@dhcp-10-35-12-184.localdomain>
    
74. To: root@dhcp-10-35-12-184.localdomain
    
75. Content-Type: text/plain; charset="ANSI_X3.4-1968"
    
76. Subject: Anacron job 'cron.daily' on dhcp-10-35-12-184
    
77. Date: Sun, 28 Jul 2013 03:41:29 +0800 (CST)
    
78. Status: R
    
79. 
    
80. /etc/cron.daily/mlocate.cron:
    
81. 
    
82. /usr/bin/updatedb: can not open `/etc/updatedb.conf': Permission denied
    

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可是这个文件分明是可读的，而且我是root用户啊:

1. 
   
2. # ls -al /etc/updatedb.conf
   
3. -rw-r--r--. 1 root root 480 5月  29 09:36 /etc/updatedb.conf
   

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这个错误到底是什么意思呢?

HH106

回复 1# ejeker
应是selinux引起的
ls -lZ /etc/updatedb.conf
贴出结果看看？

如果是selinux问题，解决方法：
restorecon -RFv  /etc/updatedb.conf

   

ejeker

HH106 发表于 2013-08-01 13:52
回复 1# ejeker
应是selinux引起的
ls -lZ /etc/updatedb.conf

不太懂selinux:

1. 
   
2. # ls -lZ /etc/updatedb.conf
   
3. -rw-r--r--. root root unconfined_u:object_r:user_tmp_t:s0 /etc/updatedb.conf
   
4. 
   
5. # restorecon -RFv /etc/updatedb.conf
   
6. restorecon reset /etc/updatedb.conf context unconfined_u:object_r:user_tmp_t:s0->system_u:object_r:etc_t:s0
   
7. 
   
8. # ls -lZ /etc/updatedb.conf
   
9. -rw-r--r--. root root system_u:object_r:etc_t:s0       /etc/updatedb.conf
   

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这个是你说的问题么? 看起来是改了属性。

bacy001

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nihao426181

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nihao426181

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