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 /tmp/ccBBJEB8.o: In function `ping_sql':
pingsql.c:(.text+0x7c): undefined reference to `mysql_init'
pingsql.c:(.text+0xe1): undefined reference to `mysql_real_connect'
pingsql.c:(.text+0xff): undefined reference to `mysql_close'
pingsql.c:(.text+0x119): undefined reference to `mysql_connect'
pingsql.c:(.text+0x198): undefined reference to `mysql_real_escape_string'
collect2: ld ·µ»Ø 1
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#gcc -o pingsql pingsql.c -lmysqlclient -I/usr/local/mysql/include/mysql/ -L/usr/local/mysql/lib/mysql


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#/usr/local/nginx/sbin/nginx -V
CODE:
nginx version: nginx/0.6.32
built by gcc 4.1.2 20071124 (Red Hat 4.1.2-42)
configure arguments: --user=www --group=www --prefix=/usr/local/nginx/ --with-http_stub_status_mo ......

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use mysql
update user set Password=password('newpassword') where User='root';
flush privileges;
1.ͨ¹ýÐÞ¸ÄMYSQLÊý¾Ý¿âÖÐMYSQL¿âµÄUSER±í
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MYSQLADMIN -u root -p PASSWORD mypasswd
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4.ʹÓÃSET PASSWORDÓï¾ ......

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 1. -static  13%
   --with-client-ldflags=-all-static
   --with-mysqld-ldflags=-all-static
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2. -pgcc  1%
   CFLAGS="-O3 -mpentiumpro -mstack-align-double" CXX=gcc \
     CXXFLAGS="-O3 -mpentiumpro -mstack-alig ......

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