php和mysql没有建立连接怎么弄啊

Question

1. ./configure --host=i386-redhat-linux --build=i386-redhat-linux --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --cache-file=../config.cache --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --enable-force-cgi-redirect --disable-debug --enable-pic --disable-rpath --enable-inline-optimization --with-bz2 --with-db4=/usr --with-curl --with-dom=/usr --with-exec-dir=/usr/bin --with-freetype-dir=/usr --with-png-dir=/usr --with-gd --enable-gd-native-ttf --with-ttf --with-gdbm --with-gettext --with-ncurses --with-gmp --with-iconv --with-jpeg-dir=/usr --with-openssl --with-png --with-pspell --with-regex=system --with-xml --with-expat-dir=/usr --with-pcre=/usr --with-zlib --with-layout=GNU --enable-bcmath --enable-exif --enable-ftp --enable-magic-quotes --enable-safe-mode --enable-sockets --enable-sysvsem --enable-sysvshm --enable-discard-path --enable-track-vars --enable-trans-sid --enable-yp --enable-wddx --enable-mbstring --enable-mbstr-enc-trans --enable-mbregex --without-oci8 --with-pear=/usr/share/pear --with-imap=shared --with-imap-ssl --with-kerberos=/usr/kerberos --with-ldap=shared --with-mysql=/usr/local/mysql  --with-pgsql=shared --with-unixODBC=shared --enable-memory-limit --enable-bcmath --enable-shmop --enable-versioning --enable-calendar --enable-dbx --enable-dio --enable-mcal --with-apxs2filter=/usr/sbin/apxs

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以上是phpinfo的PHP信息，系统装的是AS3.0,默认安装了apache,php,gd和mysql,mysql在本地都可以连接，但外面连不上，请问这个问题该怎么解决啊？