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Linux ±àÒë°²×° MYSQL 5.1 Óë Innodb

Linux ±àÒë°²×° MYSQL 5.1 Óë Innodb
±àÒëmysql5
´úÂë:
./configure \
--prefix=/usr/local/mysql \
--localstatedir=/usr/local/mysql/data \
--with-unix-socket-path=/usr/local/mysql/tmp/mysql.sock \
--with-extra-charsets=all \
--with-charset=utf8 \
--with-client-ldflags=-all-static \
--with-mysqld-ldflags=-all-static \
--with-plugins=all \
--with-pthread \
--enable-thread-safe-client

groupadd mysql
useradd -g mysql mysql
cp support-files/my-medium.cnf /etc/my.cnf
ÔÚmy.cnfÀïÔö¼Óuser=mysql
´úÂë:
cd /usr/local/mysql
bin/mysql_install_db --user=mysql
chown -R root . ; chown -R mysql data ;chgrp -R mysql .
bin/mysqld_safe --user=mysql &
mysqladmin -uroot password 'new-password'
Æô¶¯mysql:
´úÂë:
/usr/local/mysql/bin/mysqld_safe &
¹Ø±Õmysql:
´úÂë:
/usr/local/mysql/bin/mysqladmin shutdown
´úÂë:
cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld
¿ÉÒÔʹÓÃserver mysqld restartÆô¶¯
debianϰ²×°mysqlµÄ×¢ÒâÊÂÏî--innodb
Èç¹û´ÓÔ´´úÂë±àÒë°²×°mysql,ȱʡ°²×°Ê±,ÊÇûÓÐinnodbÒýÇæµÄ.ËùÒÔ,ÔÚconfigureµÄʱºò,Òª¼ÓÈë--with- plugins=all(»òÕßmax),ÕâÑù²Å»áÖ§³Öinnodb.ÔÚmysqlÀï¿ÉÒÔÖ´ÐÐshow enginesÃüÁîÀ´²é¿´µ±Ç°µÄmysql·þÎñÆ÷ËùÖ§³ÖµÄ´æ´¢ÒýÇæ.
http://www.mysqlperformanceblog.com/...iled-mysql-51/
¶àÏß³ÌÖ§³Ö·½ÃæÖ»Òª×¢ÒâÑ¡Ôñ--with-pthreadºÍ--enable-thread-safe-clientÑ¡Ïî¾Í¿ÉÒÔÁË¡£µÚÒ»Ïî¿ÉÒÔÖ¸Ã÷ʹÓà posixỊ̈߳¨unixµÄ±àÒ뷽ʽ¿ÉÄÜ»áÓÐЩ²»Ò»Ñù£¬ÒòΪunixµÄÄÚºËÏ̹߳¤×÷·½Ê½ÓëlinuxÏ̹߳¤×÷·½Ê½ÓбȽϴóµÄÇø±ð£¬ÓÈÆäfreebsd£©¡£
my-small.cnf ×îСÅäÖð²×°£¬ÄÚ´æ<=64M£¬Êý¾ÝÊýÁ¿×îÉÙ
my-large.cnf ÄÚ´æ=512M
my-medium.cnf 32M<ÄÚ´æ<64M£¬»òÕßÄÚ´æÓÐ128M£¬µ«ÊÇÊý¾Ý¿âÓëweb·þÎñÆ÷¹«ÓÃÄÚ´æ
my-huge.cnf 1G<ÄÚ´æ<2G£¬·þÎñÆ÷Ö÷ÒªÔËÐÐmysql
my-innodb-heavy-4G.cnf ×î´óÅäÖð²×°£¬ÄÚ´æÖÁÉÙ4G
´úÂë:
delete from mysql.user where User='';
delete from mysql.user where Host='127.0.0.1';
delete from mysql.user where Host='localhost.localdomain';
update user set Host='%';
mysql ²Ù×÷:
²é¿´mysq


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ʵսLinux Bluetooth±à³Ì£¨Èý£© HCI²ã±à³Ì

1. HCI²ãЭÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
´ÓͼÉÏ¿ÉÒÔ¿´³ö£¬Host Controller Interface(HCI)  ¾ÍÊÇÓÃÀ´¹µÍ¨HostºÍModule¡£Hostͨ³£¾ÍÊÇPC£¬ ModuleÔòÊÇÒÔ¸÷ÖÖÎïÀíÁ¬½ÓÐÎʽ£¨USB,serial,pc-cardµÈ£©Á¬½Óµ½PCÉϵÄbluetooth Dongle¡£
ÔÚHostÕâÒ»¶Ë£ºapplication,SDP,L2capµÈЭÒé ......

ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

£¨L2CAPЭÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPЭÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

Linux netfilterÔ´Âë·ÖÎö(4)


ËÄ¡¢nf_hook_ops ¹³×ÓµÄ×¢²á
ÔÚfilter±íµÄ³õʼ»¯º¯Êýstatic int __init init(void)ÖгýÁËÓÐÒ»¸önf_register_hookº¯Êý×¢²áÒ»¸ötablesÍ⣬»¹ÓÉnf_register_hookº¯Êý×¢²áÁË3¸öhook
 
4.1        nf_hook_opsÊý¾Ý½á¹¹ netfilter.h
struct nf_hook_ops
{
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Linux netfilterÔ´Âë·ÖÎö(7)

תÌù×Ô£ºhttp://alexanderlaw.blog.hexun.com/8968960_d.html
Æß¡¢ target Æ¥Åä
7.1 ipt_targetºÍipt_entry_target½á¹¹      ip_tables.h
ipt_targetºÍipt_match½á¹¹ÀàËÆ£º
struct ipt_target
{
      struct list_head list;
 
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