1.-bash: locate: command not found
安装
$ sudo yum install mlocate
测试
$ locate hello
locate: can not stat () `/var/lib/mlocate/mlocate.db': 没有那个文件或目录
初始化
$ sudo updatedb
过几分钟再执行就可以执行locate找到相应的文件了
http://blog.csdn.net/feifeilyj/article/details/52238209
2.# build php5.3.8 on ubuntu , get error: configure: error: Unable to locate gmp.h
yum install gmp-devel
3.) Configure: error: xml2-config not found. Please check your libxml2 installation.
#yum install libxml2 libxml2-devel (For Redhat & Fedora)
# aptitude install libxml2-dev (For ubuntu)
- Checking for pkg-config… /usr/bin/pkg-config
configure: error: Cannot find OpenSSL’s <evp.h>
#yum install openssl openssl-devel
- Configure: error: Please reinstall the BZip2 distribution
# yum install bzip2 bzip2-devel
- Configure: error: Please reinstall the libcurl distribution -
easy.h should be in <curl-dir>/include/curl/
# yum install curl curl-devel (For Redhat & Fedora)
# install libcurl4-gnutls-dev (For Ubuntu)
- Configure: error: libjpeg.(also) not found.
# yum install libjpeg libjpeg-devel
- Configure: error: libpng.(also) not found.
# yum install libpng libpng-devel
- Configure: error: freetype.h not found.
#yum install freetype-devel
- Configure: error: Unable to locate gmp.h
# yum install gmp-devel
- Configure: error: Cannot find MySQL header files under /usr.
Note that the MySQL client library is not bundled anymore!
# yum install mysql-devel (For Redhat & Fedora)
# apt-get install libmysql++-dev (For Ubuntu)
- Configure: error: Please reinstall the ncurses distribution
# yum install ncurses ncurses-devel
- Checking for unixODBC support… configure: error: ODBC header file ‘/usr/include/sqlext.h’ not found!
# yum install unixODBC-devel
- Configure: error: Cannot find pspell
# yum install pspell-devel
- configure: error: mcrypt.h not found. Please reinstall libmcrypt.
# yum install libmcrypt libmcrypt-devel (For Redhat & Fedora)
# apt-get install libmcrypt-dev
- Configure: error: snmp.h not found. Check your SNMP installation.
# yum install net-snmp net-snmp-devel
15.configure: error: xslt-config not found. Please reinstall the libxslt >= 1.1.0 distribution
yum -y install libxslt libxslt-devel
16.xslt-config not found. Please reinstall the libxslt >= 1.1.0 distribution
yum -y install libxslt libxslt-devel
17.virtual memory exhausted: Cannot allocate memory
问题原因：由于物理内存本身很小，且阿里云服务器并没有分配swap空间，当物理内存不够用时，物理内存中暂时不用的内容没地方转存。
解决方法：手动分配一个swap空间
dd if=/dev/zero of=/swap bs=1024 count=1M #创建一个大小为1G的文件/swap
mkswap /swap #将/swap作为swap空间
swapon /swap #enable /swap file for paging and swapping
echo "/swap swap swap sw 0 0" >> /etc/fstab #Enable swap on boot, 开机后自动生效
18.# linux 启动php-fpm please specify user and group other than root
提示很明确了，为了安全考虑，不要使用root账户来运行php-fpm，否则别人随便一个shell，你的系统不就直接崩溃了吗？
首先新建个www用户和www用户组，然后将配置这里更改为
user=www
group=www
https://segmentfault.com/q/1010000007052707
19.# LINUX创建www的用户组和用户，并且不允许登录权限：
# id www
id: www：无此用户
# groupadd www
# useradd -g www -s /sbin/nologin www
# id www
uid=501(www) gid=501(www) 组=501(www)
https://www.cnblogs.com/cnbing/p/6957239.html
