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echo "Subject: test" | /usr/lib/sendmail -v xinhaozheng@gmail.com
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WARNING: local host name (server) is not qualified; see cf/README: WHO AM I?
xinhaozheng@gmail.com... Connecting to [127.0.0.1] via relay...
xinhaozheng@gmail.com... Deferred: Connection timed out with [127.0.0.1]
»³ÒÉÊÇISP·âµôÁË25¶Ë¿Ú¡£¼ì²éһϷÀ»ðǽ£¬ÔÝʱ¹Øµôiptables£¬ÔÙÓÃÕâ¸öÃüÁî²âÊÔ£¬¿ÉÒÔͨ¹ý£º
WARNING: local host name (server) is not qualified; see cf/README: WHO AM I?
xinhaozheng@gmail.com... Connecting to [127.0.0.1] via relay...
220 server ESMTP Sendmail 8.13.8/8.13.8; Thu, 29 Apr 2010 03:22:42 +0200
>>> EHLO server
250-server Hello localhost.localdomain [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
>>> MAIL from:<root@server> SIZE=14
250 2.1.0 <root@server>... Sender ok
>>> RCPT To:<xinhaozheng@gmail.com>
>>> DATA
250 2.1.5 <xinhaozheng@gmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 o3T1Mg5Z016990 Message accepted for delivery
xinhaozheng@gmail.com... Sent (o3T1Mg5Z016990 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 server closing connection


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http://blog.csdn.net/rufeng18/archive/2008/11/17/3322099.aspx
http://www.ibm.com/developerworks/cn/linux/l-pow-debug/
http://xueyueming.blog.163.com/blog/static/60411785200981045547110/
http://zhangyafeikimi.java ......

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[root@GISDB ~]$ su - oracle
[oracle@GISDB ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.4.0 - Production on Tue Oct 13 11:03:03 2009
Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.
SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
To ......

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#uname -a
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