[root@ko web]# rpm -ivh MySQL-server-5.0.27-0.i386.rpm
warning: MySQL-server-5.0.27-0.i386.rpm: V3 DSA signature: NOKEY, key ID 5072e1f 5
error: Failed dependencies:
        MySQL conflicts with mysql-3.23.58-16.FC3.1.i386
[root@ko web]# rpm -e mysql-3.23.58-16.FC3.1.i386
error: Failed dependencies:
        libmysqlclient.so.10 is needed by (installed) koffice-1.4.2-0.FC3.2.i386
        libmysqlclient.so.10 is needed by (installed) perl-DBD-MySQL-2.9003-5.i3 86
[root@ko web]# rpm -qa mysql
mysql-3.23.58-16.FC3.1

我没有装msql 怎么会有这个。。

你先要装三个安装包才行

确认你的网络正常
然后
yum install MySQL-server