Centos5.5上搭建LNMP

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Ro_410 2011-10-31 19:35:27 博主文章分类：干一行爱一行 ©著作权

文章标签 职场休闲 centos centos5.5编译安装LNMP LNMP各种问题解决 文章分类 开源

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CentOS-5.5-x86_64+Nginx+php（Fast-cgi）+mysql+memcache+eaccelerator生产环境中的安装

说明：这篇博客和上一篇使用Redhat 系统上做的有很多类似的地方，包括软件，只是在做的时候遇到的不同问题以及各个问题的解决是这篇博客的最重要的地方

！

实验环境：

系统：CentOS-5.5-x86_64
# uname -a
Linux centos 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:35 EDT 2010 i686 i686 i386 GNU/Linux
# uname -n
centos
# uname -r
2.6.18-194.el5

一、从软件的官方网站下载软件包：
[root@centos ~]#mkdir -p lnmp
[root@centos ~]#cd lnmp
wget http://sysoev.ru/nginx/nginx-0.8.46.tar.gz
wget http://www.php.net/get/php-5.2.14.tar.gz/from/this/mirror
wget http://php-fpm.org/downloads/php-5.2.14-fpm-0.5.14.diff.gz
wget http://downloads.skysql.com/archives/mysql-5.1/mysql-5.1.46-linux-i686-glibc23.tar.gz
wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.13.1.tar.gz
wget "http://downloads.sourceforge.net/mcrypt/libmcrypt-2.5.8.tar.gz?modtime=1171868460&big_mirror=0"
wget "http://downloads.sourceforge.net/mcrypt/mcrypt-2.6.8.tar.gz?modtime=1194463373&big_mirror=0"
wget http://pecl.php.net/get/memcache-2.2.5.tgz
wget "http://downloads.sourceforge.net/mhash/mhash-0.9.9.9.tar.gz?modtime=1175740843&big_mirror=0"
wget http://webserver.googlecode.com/files/pcre-8.10.tar.gz
wget http://acelnmp.googlecode.com/files/eaccelerator-0.9.6.1.tar.bz2
wget http://vps.googlecode.com/files/PDO_MYSQL-1.0.2.tgz
wget http://mynginx.googlecode.com/files/ImageMagick.tar.gz
wget http://lnmpp.googlecode.com/files/imagick-2.3.0.tgz

二、安装PHP 5.2.14（FastCGI模式）
1、编译安装PHP 5.2.14所需的支持库：

tar zxvf libiconv-1.13.1.tar.gz
cd libiconv-1.13.1/
./configure --prefix=/usr/local
make
make install
cd ../

tar zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8/
yum install gcc gcc-c++ gcc-g77 autoconf automake flex bison bzip2-devel zlib-devel ncurses-devel libjpeg-devel libpng-devel libtiff-devel freetype-devel pam-devel

-y
./configure
make
make install
/sbin/ldconfig
cd libltdl/
./configure --enable-ltdl-install
make
make install
cd ../../

tar zxvf mhash-0.9.9.9.tar.gz
cd mhash-0.9.9.9/
./configure
make
make install

cd ../

做必要库的链接
ln -s /usr/local/lib/libmcrypt.la /usr/lib/libmcrypt.la
ln -s /usr/local/lib/libmcrypt.so /usr/lib/libmcrypt.so
ln -s /usr/local/lib/libmcrypt.so.4 /usr/lib/libmcrypt.so.4
ln -s /usr/local/lib/libmcrypt.so.4.4.8 /usr/lib/libmcrypt.so.4.4.8
ln -s /usr/local/lib/libmhash.a /usr/lib/libmhash.a
ln -s /usr/local/lib/libmhash.la /usr/lib/libmhash.la
ln -s /usr/local/lib/libmhash.so /usr/lib/libmhash.so
ln -s /usr/local/lib/libmhash.so.2 /usr/lib/libmhash.so.2
ln -s /usr/local/lib/libmhash.so.2.0.1 /usr/lib/libmhash.so.2.0.1
ln -s /usr/local/bin/libmcrypt-config /usr/bin/libmcrypt-config

tar zxvf mcrypt-2.6.8.tar.gz
cd mcrypt-2.6.8/
/sbin/ldconfig
./configure
make
make install
cd ../

安装mysql
mkdir -pv /mydata/data
tar xf mysql-5.1.46-linux-i686-glibc23.tar.gz -C /usr/local/
/usr/sbin/groupadd -g 3306 mysql
/usr/sbin/useradd -g mysql -u 3306 -M -s /sbin/nologin mysql
/bin/chown -R mysql:mysql /mydata/
/bin/ln -sv /usr/local/mysql-5.1.46-linux-i686-glibc23 /usr/local/mysql
cd /usr/local/mysql
chown -R　 root:mysql .
scripts/mysql_install_db --user=mysql --datadir=/mydata/data
cp support-files/mysql.server /etc/init.d/mysqld
chkconfig --add mysqld
cp support-files/my-large.cnf /etc/my.cnf
export PATH=$PATH:/usr/local/mysql/bin
echo "PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile
/sbin/ldconfig
ln -sv /usr/local/mysql/include /usr/include/mysql
echo "MANPATH /usr/local/mysql/man" >> /etc/man.conf
ln -s /usr/local/mysql/lib/mysql /usr/lib/mysql
ln -s /usr/local/mysql/include/mysql /usr/include/mysql
service mysqld restart
cd /root/lnmp/

2、编译安装PHP（FastCGI模式）
tar zxvf php-5.2.14.tar.gz
gzip -cd php-5.2.14-fpm-0.5.14.diff.gz | patch -d php-5.2.14 -p1
cd php-5.2.14/
yum install   libxml2-devel openssl openssl-devel curl curl-devel   openldap openldap-client openldap-devel openldap-servers libtool-ltdl-devel ibtool-ltdl -y
./configure \
--prefix=/usr/local/php \                                  //指定安装的位置
--with-config-file-path=/usr/local/php/etc \   //指定配置文件的位置
--with-mysql=/usr/local/mysql \               //指定mysql的位置
--with--mysqli=/usr/local/mysql/ \
--with-iconv-dir=/usr/local \                   //指定iconv的位置
--with-freetype-dir \
--with-jpeg-dir \                                        //支持jpeg
--with-png-dir \                                         //支持png
--with-zlib \
--with-libxml-dir=/usr \
--enable-xml   \
--disable-rpath \
--enable-discard-path \
--enable-safe-mode \
--enable-bcmath \
--enable-shmop \
--enable-sysvsem \
--enable-inline-optimization \
--with-curl \
--with-curlwrappers \
--enable-mbregex \
--enable-fastcgi \
--enable-fpm \
--enable-force-cgi-redirect \
--enable-mbstring \
--with-mcrypt \                             //支持加密
--with-gd \                                     //支持gd库，也可以使用imagick
--enable-gd-native-ttf \
--with-openssl \                             //支持ssl
--with-mhash \                              //支持hash算法
--enable-pcntl \
--enable-sockets \
--with-ldap \
--with-ldap-sasl \
--with-xmlrpc \
--enable-zip \
--enable-soap

make ZEND_EXTRA_LIBS='-liconv'
make install
cp php.ini-dist /usr/local/php/etc/php.ini
cd ../

3、编译安装PHP5扩展模块
tar zxvf memcache-2.2.5.tgz
cd memcache-2.2.5/
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
make install
cd ../

tar jxvf eaccelerator-0.9.6.1.tar.bz2
cd eaccelerator-0.9.6.1/
/usr/local/php/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=/usr/local/php/bin/php-config
make
make install
cd ../

tar zxvf PDO_MYSQL-1.0.2.tgz
cd PDO_MYSQL-1.0.2/
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config --with-pdo-mysql=/usr/local/mysql
make
make install
cd ../

tar zxvf ImageMagick.tar.gz
cd ImageMagick-6.6.5-8/
./configure
make
make install
cd ../

tar zxvf imagick-2.3.0.tgz
cd imagick-2.3.0/
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
make install
cd ../

4、修改php.ini文件
　　手工修改：查找/usr/local/php/etc/php.ini中的extension_dir = "./"
　　修改为extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"
　　并在此行后增加以下几行，然后保存：
　　extension = "memcache.so"
　　extension = "pdo_mysql.so"
　　extension = "imagick.so"
　　再查找output_buffering = Off
　　修改为output_buffering = On
　　再查找 ; cgi.fix_pathinfo=0
　　修改为cgi.fix_pathinfo=0，即取消注释，使生效，防止Nginx文件类型错误解析漏洞。
　　自动修改：若嫌手工修改麻烦，可执行以下shell命令，自动完成对php.ini文件的修改：
sed -i 's#extension_dir = "./"#extension_dir = "/usr/local/webserver/php/lib/php/extensions/no-debug-non-zts-20060613/"\nextension =

"memcache.so"\nextension ="pdo_mysql.so"\nextension = "imagick.so"\n#' /usr/local/php/etc/php.ini
sed -i 's#output_buffering = Off#output_buffering = On#' /usr/local/php/etc/php.ini
sed -i "s#; always_populate_raw_post_data = On#always_populate_raw_post_data = On#g" /usr/local/php/etc/php.ini
sed -i "s#; cgi.fix_pathinfo=0#cgi.fix_pathinfo=0#g" /usr/local/php/etc/php.ini

6、配置eAccelerator加速PHP：
mkdir -p /usr/local/eaccelerator_cache
vi /usr/local/php/etc/php.ini
按shift+g键跳到配置文件的最末尾，加上以下配置信息：
引用
[eaccelerator]
zend_extension="/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/eaccelerator.so"
eaccelerator.shm_size="64"
eaccelerator.cache_dir="/usr/local/eaccelerator_cache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="3600"
eaccelerator.shm_prune_period="3600"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
7、创建www用户和组，以及供blog.lamphelp.org和www.lamphelp.org两个虚拟主机使用的目录：
/usr/sbin/groupadd www
/usr/sbin/useradd -g www www
mkdir -p /data0/htdocs/blog
chmod +w /data0/htdocs/blog
chown -R www:www /data0/htdocs/blog

8、创建php-fpm配置文件（php-fpm是为PHP打的一个FastCGI管理补丁，可以平滑变更php.ini配置而无需重启php-cgi）：
在/usr/local/php/etc/目录中创建php-fpm.conf文件：
rm -f /usr/local/php/etc/php-fpm.conf
vi /usr/local/php/etc/php-fpm.conf
输入以下内容（如果您安装 Nginx + PHP 用于程序调试，请将以下的<value name="display_errors">0</value>改为<value name="display_errors">1</value>，

以便显示PHP错误信息，否则，Nginx 会报状态为500的空白错误页）：
<?xml version="1.0" ?>
<configuration>
All relative paths in this config are relative to php's install prefix
<section name="global_options">
    Pid file
    <value name="pid_file">/usr/local/php/logs/php-fpm.pid</value>
    Error log file
    <value name="error_log">/usr/local/php/logs/php-fpm.log</value>
    Log level
    <value name="log_level">notice</value>
    When this amount of php processes exited with SIGSEGV or SIGBUS ...
    <value name="emergency_restart_threshold">10</value>
    ... in a less than this interval of time, a graceful restart will be initiated.
    Useful to work around accidental curruptions in accelerator's shared memory.
    <value name="emergency_restart_interval">1m</value>
    Time limit on waiting child's reaction on signals from master
    <value name="process_control_timeout">5s</value>
    Set to 'no' to debug fpm
    <value name="daemonize">yes</value>
</section>
<workers>
    <section name="pool">
      Name of pool. Used in logs and stats.
      <value name="name">default</value>
      Address to accept fastcgi requests on.
      Valid syntax is 'ip.ad.re.ss:port' or just 'port' or '/path/to/unix/socket'
      <value name="listen_address">127.0.0.1:9000</value>
      <value name="listen_options">
        Set listen(2) backlog
        <value name="backlog">-1</value>
        Set permissions for unix socket, if one used.
        In Linux read/write permissions must be set in order to allow connections from web server.
        Many BSD-derrived systems allow connections regardless of permissions.
        <value name="owner"></value>
        <value name="group"></value>
        <value name="mode">0666</value>
      </value>
      Additional php.ini defines, specific to this pool of workers.
      <value name="php_defines">
        <value name="sendmail_path">/usr/sbin/sendmail -t -i</value>
        <value name="display_errors">0</value>
      </value>
      Unix user of processes
      <value name="user">www</value>
      Unix group of processes
      <value name="group">www</value>
      Process manager settings
      <value name="pm">
        Sets style of controling worker process count.
        Valid values are 'static' and 'apache-like'
        <value name="style">static</value>
        Sets the limit on the number of simultaneous requests that will be served.
        Equivalent to Apache MaxClients directive.
        Equivalent to PHP_FCGI_CHILDREN environment in original php.fcgi
        Used with any pm_style.
        <value name="max_children">128</value>
        Settings group for 'apache-like' pm style
        <value name="apache_like">
          Sets the number of server processes created on startup.
          Used only when 'apache-like' pm_style is selected
          <value name="StartServers">20</value>
          Sets the desired minimum number of idle server processes.
          Used only when 'apache-like' pm_style is selected
          <value name="MinSpareServers">5</value>
          Sets the desired maximum number of idle server processes.
          Used only when 'apache-like' pm_style is selected
          <value name="MaxSpareServers">35</value>
        </value>
      </value>
      The timeout (in seconds) for serving a single request after which the worker process will be terminated
      Should be used when 'max_execution_time' ini option does not stop script execution for some reason
      '0s' means 'off'
      <value name="request_terminate_timeout">0s</value>
      The timeout (in seconds) for serving of single request after which a php backtrace will be dumped to slow.log file
      '0s' means 'off'
      <value name="request_slowlog_timeout">0s</value>
      The log file for slow requests
      <value name="slowlog">logs/slow.log</value>
      Set open file desc rlimit
      <value name="rlimit_files">65535</value>
      Set max core size rlimit
      <value name="rlimit_core">0</value>
      Chroot to this directory at the start, absolute path
      <value name="chroot"></value>
      Chdir to this directory at the start, absolute path
      <value name="chdir"></value>
      Redirect workers' stdout and stderr into main error log.
      If not set, they will be redirected to /dev/null, according to FastCGI specs
      <value name="catch_workers_output">yes</value>
      How much requests each process should execute before respawn.
      Useful to work around memory leaks in 3rd party libraries.
      For endless request processing please specify 0
      Equivalent to PHP_FCGI_MAX_REQUESTS
      <value name="max_requests">1024</value>
      Comma separated list of ipv4 addresses of FastCGI clients that allowed to connect.
      Equivalent to FCGI_WEB_SERVER_ADDRS environment in original php.fcgi (5.2.2+)
      Makes sense only with AF_INET listening socket.
      <value name="allowed_clients">127.0.0.1</value>
      Pass environment variables like LD_LIBRARY_PATH
      All $VARIABLEs are taken from current environment
      <value name="environment">
        <value name="HOSTNAME">$HOSTNAME</value>
        <value name="PATH">/usr/local/bin:/usr/bin:/bin</value>
        <value name="TMP">/tmp</value>
        <value name="TMPDIR">/tmp</value>
        <value name="TEMP">/tmp</value>
        <value name="OSTYPE">$OSTYPE</value>
        <value name="MACHTYPE">$MACHTYPE</value>
        <value name="MALLOC_CHECK_">2</value>
      </value>
    </section>
</workers>
</configuration>
　　9、启动php-cgi进程，监听127.0.0.1的9000端口，进程数为128（如果服务器内存小于3GB，可以只开启64个进程），用户为www：
ulimit -SHn 65535
/usr/local/php/sbin/php-fpm start
　　注：/usr/local/php/sbin/php-fpm还有其他参数，包括：start|stop|quit|restart|reload|logrotate，修改php.ini后不重启php-cgi，重新加载配置文件使用reload。

--------------------------------------------------------------------------------
三、安装Nginx 0.8.46
1、安装Nginx所需的pcre库：
tar zxvf pcre-8.10.tar.gz
cd pcre-8.10/
./configure
make && make install
cd ../

2、安装Nginx
tar zxvf nginx-0.8.46.tar.gz
cd nginx-0.8.46/
./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module
make && make install
cd ../

3、创建Nginx日志目录
mkdir -p /data1/logs
chmod +w /data1/logs
chown -R www:www /data1/logs

4、创建Nginx配置文件
①、在/usr/local/nginx/conf/目录中创建nginx.conf文件：
rm -f /usr/local/nginx/conf/nginx.conf
vim /usr/local/nginx/conf/nginx.conf
输入以下内容：
引用
user www www;
worker_processes 8;
error_log /data1/logs/nginx_error.log crit;
pid        /usr/local/nginx/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 65535;
events
{
use epoll;
worker_connections 65535;
}
http
{
include       mime.types;
default_type application/octet-stream;
#charset gb2312;

server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 8m;

sendfile on;
tcp_nopush     on;
keepalive_timeout 60;
tcp_nodelay on;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 128k;
gzip on;
gzip_min_length 1k;
gzip_buffers     4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types       text/plain application/x-javascript text/css application/xml;
gzip_vary on;
#limit_zone crawler $binary_remote_addr 10m;
server
{
    listen       80;
    server_name blog.lamphelp.org;
    index index.html index.htm index.php;
    root /data0/htdocs/blog;
    #limit_conn   crawler 20;

    location ~ .*\.(php|php5)?$
    {
      #fastcgi_pass unix:/tmp/php-cgi.sock;
      fastcgi_pass 127.0.0.1:9000;
      fastcgi_index index.php;
      include fcgi.conf;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
      expires      30d;
    }
    location ~ .*\.(js|css)?$
    {
      expires      1h;
    }
    log_format access '$remote_addr - $remote_user [$time_local] "$request" '
              '$status $body_bytes_sent "$http_referer" '
              '"$http_user_agent" $http_x_forwarded_for';
    access_log /data1/logs/access.log access;
      }

server
{
    listen 80;
    server_name status.blog.lamphelp.org;
    location / {
    stub_status on;
    access_log   off;
    }
}
}

②、在/usr/local/nginx/conf/目录中创建fcgi.conf文件：
vim /usr/local/nginx/conf/fcgi.conf
输入以下内容：
引用
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE    nginx;
fastcgi_param QUERY_STRING       $query_string;
fastcgi_param REQUEST_METHOD     $request_method;
fastcgi_param CONTENT_TYPE       $content_type;
fastcgi_param CONTENT_LENGTH     $content_length;
fastcgi_param SCRIPT_FILENAME    $document_root$fastcgi_script_name;
fastcgi_param SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param REQUEST_URI        $request_uri;
fastcgi_param DOCUMENT_URI       $document_uri;
fastcgi_param DOCUMENT_ROOT      $document_root;
fastcgi_param SERVER_PROTOCOL    $server_protocol;
fastcgi_param REMOTE_ADDR        $remote_addr;
fastcgi_param REMOTE_PORT        $remote_port;
fastcgi_param SERVER_ADDR        $server_addr;
fastcgi_param SERVER_PORT        $server_port;
fastcgi_param SERVER_NAME        $server_name;
# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param REDIRECT_STATUS    200;

5、启动Nginx
ulimit -SHn 65535
/usr/local/nginx/sbin/nginx

--------------------------------------------------------------------------------　
四、配置开机自动启动Nginx + PHP
vim /etc/rc.local
在末尾增加以下内容：
引用
ulimit -SHn 65535
/usr/local/php/sbin/php-fpm start
/usr/local/nginx/sbin/nginx

--------------------------------------------------------------------------------
五、优化Linux内核参数
vim /etc/sysctl.conf
在末尾增加以下内容：
引用
# Add
net.ipv4.tcp_max_syn_backlog = 65536
net.core.netdev_max_backlog = 32768
net.core.somaxconn = 32768
net.core.wmem_default = 8388608
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_tw_recycle = 1
#net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_mem = 94500000 915000000 927000000
net.ipv4.tcp_max_orphans = 3276800
#net.ipv4.tcp_fin_timeout = 30
#net.ipv4.tcp_keepalive_time = 120
net.ipv4.ip_local_port_range = 1024 65535

使配置立即生效：
/sbin/sysctl -p

--------------------------------------------------------------------------------
六、在不停止Nginx服务的情况下平滑变更Nginx配置
1、修改/usr/local/nginx/conf/nginx.conf配置文件后，请执行以下命令检查配置文件是否正确：
/usr/local/nginx/sbin/nginx -t
如果屏幕显示以下两行信息，说明配置文件正确：
the configuration file /usr/local/webserver/nginx/conf/nginx.conf syntax is ok
　　the configuration file /usr/local/webserver/nginx/conf/nginx.conf was tested successfully
2、平滑重启：
　　①、对于Nginx 0.8.x版本，现在平滑重启Nginx配置非常简单，执行以下命令即可：
/usr/local/webserver/nginx/sbin/nginx -s reload

　　②、对于Nginx 0.8.x之前的版本，平滑重启稍微麻烦一些，按照以下步骤进行即可。输入以下命令查看Nginx主进程号：
ps -ef | grep "nginx: master process" | grep -v "grep" | awk -F ' ' '{print $2}'
　　屏幕显示的即为Nginx主进程号，例如：
　　6302
　　这时，执行以下命令即可使修改过的Nginx配置文件生效：
kill -HUP 6302
　　或者无需这么麻烦，找到Nginx的Pid文件：
kill -HUP `cat /usr/local/webserver/nginx/nginx.pid`

--------------------------------------------------------------------------------
七、编写每天定时切割Nginx日志的脚本
1、创建脚本/usr/local/nginx/sbin/cut_nginx_log.sh
vi /usr/local/nginx/sbin/cut_nginx_log.sh
输入以下内容：
引用
#!/bin/bash
# This script run at 00:00
# The Nginx logs path
logs_path="/usr/local/nginx/logs/"
mkdir -p ${logs_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/
mv ${logs_path}access.log ${logs_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/access_$(date -d "yesterday" +"%Y%m%d").log
kill -USR1 `cat /usr/local/nginx/nginx.pid`

2、设置crontab，每天凌晨00:00切割nginx访问日志
crontab -e
输入以下内容：
引用
00 00 * * * /bin/bash /usr/local/nginx/sbin/cut_nginx_log.sh
********************************************************************************************
八、安装出现的问题及解决方法：
1) 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)

2) Checking for pkg-config… /usr/bin/pkg-config
configure: error: Cannot find OpenSSL’s <evp.h>
#yum install openssl openssl-devel

3) Configure: error: Please reinstall the BZip2 distribution
# yum install bzip2 bzip2-devel

4) 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)

5) Configure: error: libjpeg.(also) not found.
# yum install libjpeg libjpeg-devel

6) Configure: error: libpng.(also) not found.
# yum install libpng libpng-devel

7) Configure: error: freetype.h not found.
#yum install freetype-devel

8) Configure: error: Unable to locate gmp.h
# yum install gmp-devel

9) 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)

10) Configure: error: Please reinstall the ncurses distribution
# yum install ncurses ncurses-devel

11) Checking for unixODBC support… configure: error: ODBC header file ‘/usr/include/sqlext.h’ not found!
# yum install unixODBC-devel

12) Configure: error: Cannot find pspell
# yum install pspell-devel

13) configure: error: mcrypt.h not found. Please reinstall libmcrypt.
# yum install libmcrypt libmcrypt-devel (For Redhat & Fedora)
# apt-get install libmcrypt-dev

14) Configure: error: snmp.h not found. Check your SNMP installation.
# yum install net-snmp net-snmp-devel

15)
/usr/bin/ld: cannot find -lltdl
collect2: ld returned 1 exit status
make: *** [sapi/cgi/php-cgi] Error 1
# yum install libtool-ltdl.x86_64 libtool-ltdl-devel.x86_64

16）

为php编译xcache模块的时候，需要运行phpize
得到了一个错误
#/usr/local/php/bin/phpize
Configuring for:
PHP Api Version:         20041225
Zend Module Api No:      20060613
Zend Extension Api No:   220060519
Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF
environment variable is set correctly and then rerun this script.
通过安装 autoconf 可以解决
centos下执行 yum install autoconf 即可
ubuntu下执行 apt-get install autoconf 即可

17）
# /usr/local/php/bin/phpize
Cannot find config.m4.
Make sure that you run '/usr/local/php/bin/phpize' in the top level source directory of the module
修改方法：
[root@centos lnmp]# cd php-5.2.14ext/
[root@centos ext]# ./ext_skel --extname=my_module
Creating directory my_module
Creating basic files: config.m4 config.w32 .cvsignore my_module.c php_my_module.h CREDITS EXPERIMENTAL tests/001.phpt my_module.php [done].

To use your new extension, you will have to execute the following steps:

1. $ cd ..
2. $ vi ext/my_module/config.m4
3. $ ./buildconf
4. $ ./configure --[with|enable]-my_module
5. $ make
6. $ ./php -f ext/my_module/my_module.php
7. $ vi ext/my_module/my_module.c
8. $ make

Repeat steps 3-6 until you are satisfied with ext/my_module/config.m4 and
step 6 confirms that your module is compiled into PHP. Then, start writing
code and repeat the last two steps as often as necessary.

[root@centos ext]# cd my_module/
[root@centos my_module]# vim config.m4
根据你自己的选择将
dnl PHP_ARG_WITH(my_module, for my_module support,

dnl Make sure that the comment is aligned:
dnl [ --with-my_module Include my_module support])

修改成
PHP_ARG_WITH(my_module, for my_module support,

Make sure that the comment is aligned:
[ --with-my_module Include my_module support])

或者将
dnl PHP_ARG_ENABLE(my_module, whether to enable my_module support,

dnl Make sure that the comment is aligned:
dnl [ --enable-my_module Enable my_module support])

修改成
PHP_ARG_ENABLE(my_module, whether to enable my_module support,

Make sure that the comment is aligned:

[ --enable-my_module Enable my_module support])

[root@centos my_module]# vim my_module.c
　　将文件其中的下列代码进行修改
/* Every user visible function must have an entry in my_module_functions[].
*/
function_entry my_module_functions[] = {
　　　　PHP_FE(say_hello,　　　 NULL)　/* ?添加着一行代码 */
　　　　PHP_FE(confirm_my_module_compiled,　　　NULL) /* For testing, remove later. */
　　　　{NULL, NULL, NULL}　　　/* Must be the last line in my_module_functions[] */
};
　　在文件的最后添加下列代码
PHP_FUNCTION(say_hello)
{
　　　　zend_printf("hello sdomain!");
}
再修改：php_sdomain.h
vi php_sdomain.h
在PHP_FUNCTION(confirm_my_module_compiled ); /* For testing, remove later. */ 这行的下面添加一行：
PHP_FUNCTION(say_hello); /* For testing, remove later. */
　　保存文件退出
　　然后我们就可以在这个目录下使用上面的命令了
　　/usr/local/php/bin/phpize
　　执行以后会看到下面的
　　[root@ns sdomain]# /usr/local/php/bin/phpize
　　Configuring for:
　　PHP Api Version:　　　　 20020918
　　Zend Module Api No:　　　20020429
　　Zend Extension Api No:　 20050606
　　[root@ns sdomain]#
　　然后执行./configure --with-php-config=/usr/local/php/bin/php-config
　　然后执行make
　 make install
然后他会把对应的so文件生成放到PHP安装目录下面的一个文件夹，并提示在在什么地方，然后再把里面的SO文件拷到你存放SO文件的地方
　　即你在php.ini里面的extension_dir所指定的位置
　　最后一步是你在php.ini文件中打开这个扩展
　　extension=sdomain.so
　　然后
　　重新起动apache

以上错误都是在整个编译安装遇到的问题，然后结合网上的资料，找到的解决方法，总结到这个地方，希望能帮到大家！