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nginx
nginx
- nginx
- 1.安装
- 搭建nginx
- 2.负载均衡配置
- nginx配置文件
1.安装
搭建nginx
首先在本机下载好所需要的软件。
pcre http://www.pcre.org/
zlib http://www.zlib.net/
openssl http://www.openssl.org/source/
nginx http://nginx.org/en/download.html
apt-get install build-essential #ubuntu默认不支持c/c++编译。添加支持
apt-get install wget gcc make #安装wget、gcc、make
#设置一个新的目录为nginx存放相关
mkdir -p /opt/local
cd /opt/local
#pcre
tar -xvf /usr/download/pcre-8.36.tar.bz2
cd pcre-8.36
./configure
make
make install
#zlib
tar -xvf /usr/download/nginx/zlib-1.2.8.tar.gz
cd zlib-1.2.8/
./configure
make
make install
#openssl
tar -zxvf /usr/download/nginx/openssl-0.9.8zg.tar.gz
cd openssl-0.9.8zg/
./config
make
make install
#nginx
tar -zxvf /usr/download/nginx/nginx-1.9.4.tar.gz
cd nginx-1.9.4.tar.gz
./configure
make
make install
nginx安装好的目录在/usr/local/nginx
如果安装完 运行/usr/local/nginx/sbin/nginx出现:
error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory
解决办法是:
32位系统
# ln -s /usr/local/lib/libpcre.so.1 /lib
64位系统
# ln -s /usr/local/lib/libpcre.so.1 /lib64
启动成功后 就可以尝试访问
2.负载均衡配置
在/usr/local/nginx/config中
nginx配置文件
#以什么用户启动,推荐root.否则会出现图片大于65k无法访问的问题
#user nobody;
#工作子进程数量 =cpu数量 or 2*cpu
worker_processes 1;
#错误日志路径
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
#使用网络IO模型linux建议epoll,FreeBSD建议采用kqueue,window下不指定。
use epoll;
#允许最大连接数
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#日志格式
#log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘
# ‘$status $body_bytes_sent "$http_referer" ‘
# ‘"$http_user_agent" "$http_x_forwarded_for"‘;
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
upstream localhost{
#weight 权重 值越大 被分配几率越大
server localhost:18080 weight=1;
server localhost:18082 weight=1;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
#root html;
#index index.html index.htm;
#请求转向真实地址 localhost为上面 upstream localhost的名字
proxy_pass http://localhost;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache‘s document root
# concurs with nginx‘s one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# }
修改配置之后
ps -ef |grep nginx
#kill -9
#nginx -s stop
nginx -s reload #重启
#然后重启
配置tomcat。配置不同的tomcat端口。上面配置的是两个tomcat 18080 18082
启动tocmat。
访问localhost.可以看到,请求分别分发到不同的tomcat中。
nginx
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