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2.$lsnrctl status           ²é¿´¼àÌý¼°Êý¾Ý¿â״̬
3.$lsnrctl start            Æô¶¯¼àÌý
4.$sqlplus / as sysdba       ½øÈësqlplus
5.SQL>conn / as sysdba   ÒÔDBAÉí·ÝµÇ¼
6.SQL>startup                Æô¶¯db
                                        
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2.$lsnrctl stop             Í£Ö¹¼àÌý
3.$sqlplus / as sysdba       ½øÈësqlplus
4.SQL>conn / as sysdba   ÒÔDBAÉí·ÝµÇ¼
5.SQL>SHUTDOWN IMMEDIATE    ¹Ø±Õdb
 
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1.#su - oracle                Çл»µ½oracleÓû§ÇÒÇл»µ½ËüµÄ»·¾³
2.$sqlplus / as sysdba       ½øÈësqlplus
3.SQL>conn / as sysdba   ÒÔDBAÉí·ÝµÇ¼
4.SQL>show parameter session; ²é¿´Ëù½ÓÊܵÄsessionÊýÁ¿
5.SQL>alter system set shared_servers=10;   ½«shared_serversµÄÊýÁ¿ÉèÖÃΪ10
 
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session = 1.1 * processes + 5
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ÄÚºËÆô¶¯µÄÏÖÔÚÒѾ­ÊÇ¿ªÊ¼Ö´Ðк¯Êýstart_kernelº¯ÊýÁË¡£start_kernelº¯ÊýÔÚinit/main.cÖж¨Òå¡£start_kernelº¯ÊýÖ»ÊÇÍê³É
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    printk(KERN_NOTICE);
    printk(linux_banner);
    setup_arch(&command_line);
ÔÚubootµÄÒ»Ö±¹ý³ÌÖУ¬uboo ......

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[root@localhost
~]# kudzu --probe --class=network
class: NETWORK
bus: PCI
detached: 0
device: eth0
desc: "Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet
"
vendorId: 10ec
dev ......

LinuxÏÂÅäÖÃNTP ¼ÜÉè±¾µØʱ¼ä·þÎñÆ÷

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ÅäÖÃNTP¼ÜÉè±¾µØʱ¼ä·þÎñÆ÷
NTPÊÇÓÃÀ´Ê¹ÏµÍ³ºÍÒ»¸ö¾«È·µÄʱ¼äÔ´±£³Öʱ¼äͬ²½µÄЭÒé.ÔÚLinuxÏ£¬ÎÒÃÇ¿ÉÒÔͨ¹ý×Ô´øµÄNTP(Network Time
Protocol)ЭÒéͨ¹ýÍøÂçʹ×Ô¼ºµÄϵͳ±£³Ö¾«È·µÄʱ¼ä.
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# yum install ntp
»òÕß´Ó°²×°Å̲éÕÒ ntp µÄrpm °ü°²×°
µ±ÄãÖ»ÓÐһ̨¿ÉÁ ......

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¡¡¡¡ÏµÍ³Æô¶¯Ê±µÄ¹«Ó÷þÎñÅäÖÃ
¡¡¡¡/etc/rc.d/rc.local
¡¡¡¡ÏµÍ³Æô¶¯Ê±µÄ±¾µØ·þÎñÅäÖÃ
¡¡¡¡/etc/bashrc¡¢/etc/profile
¡¡¡¡bash shellµÄ¹«ÓÃÅäÖÃ
¡¡¡¡/home/username/.bashrc
¡¡¡¡¸÷Óû§Ë½ÈËbash shellÅäÖÃ
¡¡¡¡/etc/securetty
¡¡¡¡Öն˰²È«ÉèÖà ......
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