linux怎么查看本机内存大小
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2022-11-12
centos7.4 搭建nginx反向缓存代理
nginx可以实现基于硬盘缓存的反向代理服务通过proxy_cache和fastcgi_cache两个功能模块完成配置
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本例:nginx反向代理服务器192.168.80.81web服务器192.168.80.82win7客户机 192.168.80.79
-----### web服务器192.168.80.82 配置:安装简单的nginx反向代理服务器192.168.80.81配置:1.上传反向代理插件、软件和解压:tar xzvf ngx_cache_purge-2.3.tar.gz -C /opt/tar xzvf pcre-8.41.tar.bz2 -C /opt/tar xzvf nginx-1.13.5.tar.gz -C /opt/yum install -y zlib-devel
2.编译安装nginxcd /opt/nginx-1.13.5
./configure \--prefix=/usr/local/nginx \--user=nginx \--group=nginx \--with-\--with-pcre=/opt/pcre-8.41 \--add-module=/opt/ngx_cache_purge-2.3
make && make intall
useradd -M nginx
cd /usr/local/nginx/conf
vi nginx.conf
清除原内容,插入以下:user nginx nginx;worker_processes 1;error_log logs/error.log crit;worker_rlimit_nofile 65535;events { use epoll; worker_connections 65535;}{ include mime.types; default_type application/octet-stream; charset utf-8; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$' # '"$"$#access_log logs/access.log main; sendfile on; tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; tcp_nodelay on; client_body_buffer_size 512k; proxy_connect_timeout 5; proxy_read_timeout 60; proxy_send_timeout 5; proxy_buffer_size 16k; proxy_buffers 4 64k; proxy_busy_buffers_size 128k; proxy_temp_file_write_size 128k; proxy_temp_path /var/cache/nginx/cache_temp; proxy_cache_path /var/cache/nginx/proxy_cache levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30g; upstream backend_server{ server 192.168.80.82:80 weight=1 max_fails=2 fail_timeout=30s; //web服务器的地址} #gzip on; server { listen 80; server_name test 192.168.80.81; //自己nginx的地址 index index.html index.htm; #charset koi8-r; #access_log logs/host.access.log main; location / { proxy_next_upstream error timeout invalid_header; proxy_cache cache_one; proxy_cache_valid 200 304 12h; proxy_cache_key $host$uri$is_args$args; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_pass expires 1d; } location ~/purge(/.*) { //配置缓存功能 allow 127.0.0.1; allow 192.168.80.0/24; //允许清除缓存的测试机网段 deny all; proxy_cache_purge cache_one $host$1$is_args$args; } location ~\.(php|jsp|cgi)?$ { proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_pass } access_log off;}}
3.启动nginx创建缓存目录mkdir -p /var/cache/nginx/cache_tempmkdir /var/cache/nginx/proxy_cache
ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/nginx -t 检查配置文件nginx netstat -anpt | grep nginx
service firewalld stopsetenforce 0
测试
验证代理:win7客户机80.79访问nginx反向代理服务器地址80.81可以看到web服务器80.82内容
验证缓存:在nginx反向代理服务器192.168.80.81上
ls /var/cache/nginx/proxy_cache 可以看到里面出现了一些缓存文件
客户机访问//用来清除缓存。
ls /var/cache/nginx/proxy_cache/ 缓存文件消失
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