linux服务器安装问题

1、在安装mcrypt 的时候提示：

*** Could not run libmcrypt test program, checking why...
*** The test program compiled, but did not run. This usually means
*** that the run-time linker is not finding LIBMCRYPT or finding the wrong
*** version of LIBMCRYPT. If it is not finding LIBMCRYPT, you'll need to set your
*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point
*** to the installed location  Also, make sure you have run ldconfig if that
*** is required on your system
***
*** If you have an old version installed, it is best to remove it, although
*** you may also be able to get things to work by modifying LD_LIBRARY_PATH
***
configure: error: *** libmcrypt was not found

明明已经安装了libmcrypt 2.5.8 ，在/usr/local/bin/也找到了LIBMCRYPT-CONFIG ，所以应该是PATH变量的问题。
创建一个连接
ln -s  /usr/local/bin/libmcrypt-config  /usr/bin/libmcrypt-config

问题解决。

2、Entering directory mysql-test 一直感觉不动了。
直接结束了。几次都未果。后来再make make install一次放在那不管了竟然通过了。还是耐心问题。呵呵

3.安装vsftpd虚拟用户时。db_load找不到。。
yum -y install db4-utils.i386