(固定ip)收到mail正常嗎? - Linux

小弟昨天練習用的老電腦才剛從灌好CentOs

inittabl開了mod3 停在root bash狀態

昨天練習到一半沒關機就擺著睡覺了

今天...剛到電腦前發現 多了一行
"You have a new mail in /var/spool/mail/root"

應該是系統寄給root的提醒訊息
http://cid-7898f3a38d05d8ab.office.live.com/self.aspx/.Public/root

信中提到:
sshd:
Authentication Failures:
unknown (218.206.224.134): 207 Time(s)
root (218.206.224.134): 162 Time(s)
root (112.81.47.30): 13 Time(s)
unknown (123.147.197.130): 6 Time(s)
mail (218.206.224.134): 3 Time(s)
bin (58.180.17.51): 2 Time(s)
unknown (112.81.47.30): 2 Time(s)
ftp (123.147.197.130): 1 Time(s)
ftp (218.206.224.134): 1 Time(s)
root (123.147.197.130): 1 Time(s)
root (218.242.38.162): 1 Time(s)
Invalid Users:
Unknown Account: 215 Time(s)

之類...代表我電腦晚上被try了..200多次0.0?
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新手上路，很多東西都不熟，請多見諒

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