如何实现用户自助注册用户名？

gamester88

1. [root@webserver ~]# w
   
2. 09:07:32 up 69 days, 15:31, 52 users,  load average: 0.37, 0.39, 0.21
   
3. USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
   
4. root     pts/0    192.168.16.230   09:04    3:06   0.00s  0.00s -bash
   
5. root     pts/1    192.168.16.230   09:04    3:02   0.01s  0.01s -bash
   
6. root     pts/2    192.168.16.230   09:04    2:58   0.00s  0.00s -bash
   
7. root     pts/3    192.168.16.230   09:04    2:55   0.01s  0.01s -bash
   
8. root     pts/4    192.168.16.230   09:04    2:51   0.00s  0.00s -bash
   
9. root     pts/5    192.168.16.230   09:04    2:48   0.00s  0.00s -bash
   
10. root     pts/6    192.168.16.230   09:04    2:45   0.00s  0.00s -bash
    
11. root     pts/7    192.168.16.230   09:04    2:42   0.01s  0.01s -bash
    
12. root     pts/8    192.168.16.230   09:04    2:39   0.01s  0.01s -bash
    
13. root     pts/9    192.168.16.230   09:04    2:36   0.01s  0.01s -bash
    
14. root     pts/10   192.168.16.230   09:05    2:32   0.00s  0.00s -bash
    
15. root     pts/11   192.168.16.230   09:05    2:29   0.00s  0.00s -bash
    
16. root     pts/12   192.168.16.230   09:05    2:26   0.01s  0.01s -bash
    
17. root     pts/13   192.168.16.230   09:05    2:21   0.00s  0.00s -bash
    
18. root     pts/14   192.168.16.230   09:05    2:17   0.00s  0.00s -bash
    
19. root     pts/15   192.168.16.230   09:05    2:01   0.01s  0.01s -bash
    
20. root     pts/16   192.168.16.230   09:05    1:54   0.01s  0.01s -bash
    
21. root     pts/17   192.168.16.230   09:05    1:51   0.00s  0.00s -bash
    
22. root     pts/18   192.168.16.230   09:05    1:48   0.00s  0.00s -bash
    
23. root     pts/19   192.168.16.230   09:05    1:45   0.00s  0.00s -bash
    
24. root     pts/20   192.168.16.230   09:05    1:42   0.01s  0.01s -bash
    
25. root     pts/21   192.168.16.230   09:05    1:37   0.00s  0.00s -bash
    
26. root     pts/22   192.168.16.230   09:05    1:33   0.00s  0.00s -bash
    
27. root     pts/23   192.168.16.230   09:06    1:30   0.00s  0.00s -bash
    
28. root     pts/24   192.168.16.230   09:06    1:27   0.00s  0.00s -bash
    
29. root     pts/25   192.168.16.230   09:06    1:24   0.00s  0.00s -bash
    
30. root     pts/26   192.168.16.230   09:06    1:22   0.00s  0.00s -bash
    
31. root     pts/27   192.168.16.230   09:06    1:20   0.00s  0.00s -bash
    
32. root     pts/28   192.168.16.230   09:06    1:18   0.00s  0.00s -bash
    
33. root     pts/29   192.168.16.230   09:06    1:16   0.00s  0.00s -bash
    
34. root     pts/30   192.168.16.230   09:06    1:14   0.00s  0.00s -bash
    
35. root     pts/31   192.168.16.230   09:06   45.00s  0.00s  0.00s -bash
    
36. root     pts/32   192.168.16.230   09:06   42.00s  0.01s  0.01s -bash
    
37. root     pts/33   192.168.16.230   09:06   39.00s  0.00s  0.00s -bash
    
38. root     pts/34   192.168.16.230   09:06   37.00s  0.00s  0.00s -bash
    
39. root     pts/35   192.168.16.230   09:06   35.00s  0.00s  0.00s -bash
    
40. root     pts/36   192.168.16.230   09:06   33.00s  0.00s  0.00s -bash
    
41. root     pts/37   192.168.16.230   09:07   31.00s  0.00s  0.00s -bash
    
42. root     pts/38   192.168.16.230   09:07   29.00s  0.00s  0.00s -bash
    
43. root     pts/39   192.168.16.230   09:07   27.00s  0.00s  0.00s -bash
    
44. root     pts/40   192.168.16.230   09:07   24.00s  0.00s  0.00s -bash
    
45. root     pts/41   192.168.16.230   09:07   22.00s  0.00s  0.00s -bash
    
46. root     pts/42   192.168.16.230   09:07   20.00s  0.00s  0.00s -bash
    
47. root     pts/43   192.168.16.230   09:07   18.00s  0.01s  0.01s -bash
    
48. root     pts/44   192.168.16.230   09:07   16.00s  0.00s  0.00s -bash
    
49. root     pts/45   192.168.16.230   09:07   14.00s  0.00s  0.00s -bash
    
50. root     pts/46   192.168.16.230   09:07   12.00s  0.01s  0.01s -bash
    
51. root     pts/47   192.168.16.230   09:07   10.00s  0.00s  0.00s -bash
    
52. root     pts/48   192.168.16.230   09:07    8.00s  0.00s  0.00s -bash
    
53. root     pts/49   192.168.16.230   09:07    6.00s  0.01s  0.01s -bash
    
54. root     pts/50   192.168.16.230   09:07    4.00s  0.00s  0.00s -bash
    
55. root     pts/51   192.168.16.230   09:07    0.00s  0.00s  0.00s w
    

复制代码

我用虚拟机测过ssh，连了10个好像就不行了，现在是生产机，8cpu,4G内存，redhat 5 update 2，连了这么多还是可以连

Hancock

原帖由 oyasmi 于 2009-9-23 21:57 发表
不如就做一个Web页面，接受用户输入用户名和密码，然后在系统上创建用户，只完成这一个功能，还可以在网页上作一些身份验证、检测非法输入数据之类的工作~

让用户摸到shell是很危险的

这个方法比较可行

to407

这样做本身。。。没有安全可言。。。

可以telnet登录后，sudo给予适当权限（即 sudo允许使用命令useradd）
这里稍微安全一点的方法。。就是修改原来的useradd。。。重新写一脚本替换。。。使创建的用户有较小权限。

quakor

原帖由 oyasmi 于 2009-9-23 00:41 发表
不如就做一个Web页面，接受用户输入用户名和密码，然后在系统上创建用户，只完成这一个功能，还可以在网页上作一些身份验证、检测非法输入数据之类的工作~

让用户摸到shell是很危险的

虽然没有完全符合要求的答案，这位朋友的意见可以一试，分就给这位朋友了