ssh有关的，lastb记录域名不全的问题

心之语

安全版块没有人管，无耐发个重复贴吧

2. [align=LEFT]root@www:/var/log# lastb | more
3. id       ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
4. login    ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
5. download ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
6. project  ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
7. email    ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
8. contact  ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
9. database ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
10. data     ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
11. educatio ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
12. post     ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
13. forum    ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
14. happy    ssh:notty    vserver1673.vser Sat May 16 00:37 - 00:37  (00:00)   
15. root     ssh:notty    85.17.36.42      Fri May 15 12:17 - 12:17  (00:00)   
16. root     ssh:notty    85.17.36.42      Fri May 15 11:15 - 11:15  (00:00)   
17. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
18. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
19. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
20. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
21. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
22. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
23. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
24. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
25. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
26. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
27. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
28. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
29. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)   
30. root     ssh:notty    host252.b1.nw.co Fri May 15 10:45 - 10:45  (00:00)[/align]

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像后面的host252.b1.nw.co ，很明显就是记录的不全的域名
如果让它只记录IP地址，以便做进一步的处理？

slackcode

OPTIONS
       -num   This is a count telling last how many lines to show.

       -n num The same.

       -t YYYYMMDDHHMMSS
              Display the state of logins as of the specified time.  This is useful, e.g., to determine easily who was logged in at a particular time --  specify
              that time with -t and look for "still logged in".

       -R     Suppresses the display of the hostname field.

       -a     Display the hostname in the last column. Useful in combination with the next flag.

       -d     For  non-local  logins, Linux stores not only the host name of the remote host but its IP number as well. This option translates the IP number back
              into a hostname.

       -i     This option is like -d in that it displays the IP number of the remote host, but it displays the IP number in numbers-and-dots notation.

       -o     Read an old-type wtmp file (written by linux-libc5 applications).

       -x     Display the system shutdown entries and run level changes.

man lastb，上面参数应该的有帮助，试试lastb -a

心之语

谢谢！
那能否让它只记录IP地址呢？

slackcode

Post by 心之语;1989221
谢谢！
那能否让它只记录IP地址呢？

这个我不太清楚啊，我平时没有用lastb的经验，照着man试试看，哈

心之语

非常感谢：）