标签:linux
(一)介绍:
Apache是世界使用排名第一的Web服务器软件。它可以运行在几乎所有广泛使用的计算机平台上,由于其跨平台和安全性被广泛使用,是最流行的Web服务器端软件之一。它快速、可靠并且可通过简单的API扩充,将Perl/Python等解释器编译到服务器中。同时Apache音译为阿帕奇,是北美印第安人的一个部落,叫阿帕奇族,在美国的西南部。也是一个基金会的名称、一种武装直升机等等。
(二)安装方式|版本
安装方式(1.编译安装 2.rpm包安装)
版本(httpd-2.0 httpd-2.2 httpd-2.4最新版本)
(三)httpd2.4新特性:
1) MPM支持运行时装载
--enable-mpms-shared=all --with-mpm=prefork|worker|event
2) 支持event MPM
3) 异步读写支持
4) 支持每模块及每目录分别使用不同的日志级别
5) 支持per-request(即支持<If>, <ElseIf>, and <Else>条件判断)
6) 增强版的表达式分析器;
7) 支持毫秒级keepalive timeout;
8) 基于FQDN(域名)的虚拟主机不再需要NameVirtualHost;
9) 支持用户使用自定义变量;
新增模块:mod_proxy_fcgi, mod_ratelimit, mod_request, mod_remoteip
备注:2.4版本修改了一些配置机制:不再支持使用order, allow, deny来实现基于IP的访问控制;
(四)编译安装:
编译前:编译依赖开发环境,yum groupinstall Development tools Server Platform Development -y
编译三部曲:检查编译环境,编译,安装
编译安装apr和apr-util
tar xf apr-1.5.0.tar.bz2
cd apr-1.5.0
./configure --prefix=/usr/local/apr
make && make install
tar xf apr-util-1.5.3.tar.bz2
cd apr-util-1.5.3
./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr/
make && make install
编译安装httpd2.4
cd httpd-2.4.9
./configure --prefix=/usr/local/apache --enable-so --enable-ssl --enable-cgi --enable-rewrite --with-zlib --with-pcre --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util --enable-modules=most --enable-mpms-shared=all --with-mpm=event && make && make install #编译模块
vim /etc/rc.d/init.d/httpd #提供服务脚本
#!/bin/bash
#
# httpd Startup script for the Apache HTTP Server
#
# chkconfig: - 85 15
# description: The Apache HTTP Server is an efficient and extensible \
# server implementing the current HTTP standards.
# processname: httpd
# config: /etc/httpd/conf/httpd.conf
# config: /etc/sysconfig/httpd
# pidfile: /var/run/httpd/httpd.pid
#
### BEGIN INIT INFO
# Provides: httpd
# Required-Start: $local_fs $remote_fs $network $named
# Required-Stop: $local_fs $remote_fs $network
# Should-Start: distcache
# Short-Description: start and stop Apache HTTP Server
# Description: The Apache HTTP Server is an extensible server
# implementing the current HTTP standards.
### END INIT INFO
# Source function library.
. /etc/rc.d/init.d/functions
if [ -f /etc/sysconfig/httpd ]; then
. /etc/sysconfig/httpd
fi
# Start httpd in the C locale by default.
HTTPD_LANG=${HTTPD_LANG-"C"}
# This will prevent initlog from swallowing up a pass-phrase prompt if
# mod_ssl needs a pass-phrase from the user.
INITLOG_ARGS=""
# Set HTTPD=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server
# with the thread-based "worker" MPM; BE WARNED that some modules may not
# work correctly with a thread-based MPM; notably PHP will refuse to start.
# Path to the apachectl script, server binary, and short-form for messages.
apachectl=/usr/sbin/apachectl
httpd=${HTTPD-/usr/sbin/httpd}
prog=httpd
pidfile=${PIDFILE-/var/run/httpd/httpd.pid}
lockfile=${LOCKFILE-/var/lock/subsys/httpd}
RETVAL=0
STOP_TIMEOUT=${STOP_TIMEOUT-10}
# The semantics of these two functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure. So we just do it the way init scripts
# are expected to behave here.
start() {
echo -n $"Starting $prog: "
LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch ${lockfile}
return $RETVAL
}
# When stopping httpd, a delay (of default 10 second) is required
# before SIGKILLing the httpd parent; this gives enough time for the
# httpd parent to SIGKILL any errant children.
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch ${lockfile}
return $RETVAL
}
# When stopping httpd, a delay (of default 10 second) is required
# before SIGKILLing the httpd parent; this gives enough time for the
# httpd parent to SIGKILL any errant children.
stop() {
status -p ${pidfile} $httpd > /dev/null
if [[ $? = 0 ]]; then
echo -n $"Stopping $prog: "
killproc -p ${pidfile} -d ${STOP_TIMEOUT} $httpd
else
echo -n $"Stopping $prog: "
success
fi
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
}
reload() {
echo -n $"Reloading $prog: "
if ! LANG=$HTTPD_LANG $httpd $OPTIONS -t >&/dev/null; then
RETVAL=6
echo $"not reloading due to configuration syntax error"
failure $"not reloading $httpd due to configuration syntax error"
else
# Force LSB behaviour from killproc
LSB=1 killproc -p ${pidfile} $httpd -HUP
RETVAL=$?
if [ $RETVAL -eq 7 ]; then
failure $"httpd shutdown"
fi
fi
echo
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p ${pidfile} $httpd
RETVAL=$?
;;
restart)
stop
start
;;
condrestart|try-restart)
if status -p ${pidfile} $httpd >&/dev/null; then
stop
start
fi
;;
force-reload|reload)
reload
;;
graceful|help|configtest|fullstatus)
$apachectl $@
RETVAL=$?
;;
*)
echo $"Usage: $prog {start|stop|restart|condrestart|try-restart|force-reload|reload|status|fullstatus|graceful|help|configtest}"
RETVAL=2
esac
exit $RETVAL
(五)启动测试
service httpd start
(六)httpd工具
httpd命令是Apache HTTP服务器程序。
参数说明:
-c<httpd指令> 在读取配置文件前,先执行选项中的指令。
-C<httpd指令> 在读取配置文件后,再执行选项中的指令。
-d<服务器根目录> 指定服务器的根目录。
-D<设定文件参数> 指定要传入配置文件的参数。
-f<设定文件> 指定配置文件。
-h 显示帮助。
-l 显示服务器编译时所包含的模块。
-L 显示httpd指令的说明。
-S 显示配置文件中的设定。
-t 测试配置文件的语法是否正确。
-v 显示版本信息。
-V 显示版本信息以及建立环境。
-X 以单一程序的方式来启动服务器。
标签:linux
原文地址:http://9405234.blog.51cto.com/9395234/1875675