Logwatchの解釈

質問

Logwatchの見方でわからない点が４つあります。
何を表しているのでしょうか？

(1)
--------------------- Kernel Begin ------------------------

WARNING: Kernel Errors Present
VFS: Error -5 occured while ...: 3 Time(s)

---------------------- Kernel End -------------------------

(2)
--------------------- Named Begin ------------------------
以下、IPとドメインは伏せています。

Zone update refused:
xxx.xxx.xxx.xxx (example.com /IN): 1 Time(s)

**Unmatched Entries**
zone example1.com/IN: refresh: retry limit for master xxx.xxx.xxx.101#53 exceeded: 5 Time(s)

zone example2.com/IN: refresh: unexpected rcode (SERVFAIL) from master xxx.xxx.xxx.xxx#53: 4 Time(s)

---------------------- Named End -------------------------

(3)
--------------------- sendmail Begin ------------------------

Ruleset violations:
Mail rejected due to possible SPAM: 154 Time(s)

**Unmatched Entries**
Dropped invalid comments from header address: 1 Time(s)

SMTP SESSION, MESSAGE, OR RECIPIENT ERRORS
------------------------------------------

WARNING!!!! Possible Attack:
Attempt from 82-39-21-129.cable.ubr03.gate.blueyonder.co.uk with:
newline in string "orler^M ": 1 Time(s)
Total: 1 Time(s)

SEVERE ERRORS
-------------

System Error Messages:
mail.toostupidtobepresident.com. config error: mail loops back to me (MX problem?): 1 Time(s)

Total SEVERE ERRORS: 1

**Unmatched Entries**
Dropped invalid comments from header address: 1 Time(s)

---------------------- sendmail End -------------------------

(4)
--------------------- ipop3d Begin ------------------------

**Unmatched Entries**
Mailbox is open by another process, access is readonly: 14 Time(s)
Expunge ignored on readonly mailbox: 14 Time(s)
Discarding bogus X-uId header in message 1: 3 Time(s)
Discarding bogus X-uId header in message 9: 2 Time(s)
...

---------------------- ipop3d End -------------------------

回答No.1

pakuti

何を質問したいのかが不明です