/var/log/auth.log 出現大堆信息

[wilson15]

如下:

...
Jan 28 07:12:39 localhost sshd[12410]: Invalid user patrick from 194.228.232.42
Jan 28 07:12:44 localhost sshd[12416]: Invalid user admin from 194.228.232.42
Jan 28 07:12:47 localhost sshd[12419]: Invalid user mihaela from 194.228.232.42
Jan 28 07:12:49 localhost sshd[12422]: Invalid user vpopmail from 194.228.232.42
Jan 28 07:12:54 localhost sshd[12428]: Invalid user office from 194.228.232.42
Jan 28 07:12:57 localhost sshd[12431]: Invalid user antonell from 194.228.232.42
...

差不多每秒出現

只安裝過apache, ftp, 和telnet, 沒有設定過ssh,
而且都不是長期開啟的.

請問這些信息代表了什麼?

[wilson15]

搜尋中找到了答案,

對不起.