一,什么是Nginx,它有什么优点
Nginx ("engine x") 是一个高性能的 HTTP 和 反向代理 服务器,也是一个 IMAP/POP3/SMTP 代理服务器。
Nginx 是一个很牛的高性能Web和反向代理服务器,它具有有很多非常优越的特性:
在高连接并发的情况下,Nginx是Apache服务器不错的替代品: Nginx在美国是做虚拟主机生意的老板们经常选择的软件平台之一. 能够支持高达 50,000 个并发连接数的响应,感谢Nginx为我们选择了 epoll and kqueue作为开发模型.
Nginx作为负载均衡服务器: Nginx 既可以在内部直接支持 Rails 和 PHP 程序对外进行服务,也可以支持作为 HTTP代理服务器对外进行服务. Nginx采用C进行编写,不论是系统资源开销还是cpu使用效率都比 Perlbal 要好很多.
作为邮件代理服务器: Nginx 同时也是一个非常优秀的邮件代理服务器(最早开发这个产品的目的之一也是作为邮件代理服务器),Last.fm 描述了成功并且美妙的使用经验.
Nginx 是一个 安装非常的简单,配置文件 非常简洁(还能够支持perl语法),Bugs非常少的服务器: Nginx 启动特别容易,并且几乎可以做到7*24不间断运行,即使运行数个月也不需要重新启动. 你还能够 不间断服务的情况下进行软件版本的升级.
二,安装所要软件
wget http://sysoev.ru/nginx/nginx-0.8.15.tar.gz
wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-7.9.tar.gz
wget http://museum.php.net/php5/php-5.2.6.tar.gz
三、安装PHP 5.2.6(FastCGI模式)
安装PHP的时候,需要安装支持PHP的一些库,不过一般情况,装好linux系统时,这些库基本上都装好,所以支持PHP安装的软件,就在这儿不说了。如果make && make install时提示出错时,你可以看一下缺少什么,你就装什么。
tar zxvf PHP-5.2.6.tar.gz
cd PHP-5.2.6/
./configure --prefix=/usr/local/PHP --with-MysqL=/usr/local/MysqL --with-zlib-dir --with-freetype-dir=/usr --with-jpeg-dir=/usr --with-png-dir=/usr --enable-gd-native-ttf --with-gd --enable-ftp --with-iconv --with-gettext --with-curl --enable-fastcgi --with-openssl
make && make install
cd /usr/local/PHP/lib
cp PHP.ini-dist PHP.ini
cp /usr/local/PHP/bin/PHP /usr/bin/php-cgi
nano PHP.ini 按f6然后输入extension_dir
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/"
2,启动php-cgi
/usr/local/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -C 5 -f /usr/bin/php-cgi
Nginx配置文件中的 fastcgi_pass 127.0.0.1:9000; 就是根据上面来的
3,查看一下
[zhangy@BlackGhost www]$ ps -e|grep php-cgi
3737 ? 00:00:00 php-cgi
3738 ? 00:00:03 php-cgi
3739 ? 00:00:03 php-cgi
3740 ? 00:00:04 php-cgi
3741 ? 00:00:03 php-cgi
3742 ? 00:00:03 php-cgi
四,安装Nginx
tar zxvf Nginx-0.8.35.tar.gz
cd Nginx-0.8.35/
./configure --user=zhangy --group=users --prefix=/usr/local/Nginx --with-http_stub_status_module --with-http_ssl_module --with-pcre=/usr/local/pcre
make && make install
1,配置Nginx.conf
nano /usr/local/Nginx/conf/Nginx.conf
user zhangy users; worker_processes 10; error_log /var/vlogs/Nginx_error.log crit; pid /var/vlogs/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 $binary_remote_addr 10m; upstream 127.0.0.1:1081 { server 127.0.0.1:1081; } upstream localhost:1080 { server 127.0.0.1:1080; } server { listen 10000; server_name :10000; index index.html index.htm index.PHP; root /home/zhangy/www/metbee/trunk/src/web; #limit_conn crawler 20; location ~ .*\.(PHP|PHP5)?$ { proxy_pass http://127.0.0.1:1081; break; #fastcgi_pass unix:/tmp/php-cgi.sock; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.PHP; include fastcgi.conf; } # location /main { # proxy_pass http://fast_test; # break; # } 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" $http_x_forwarded_for'; access_log /var/log/metbee.log access; } server { listen 80; server_name :80; index index.html index.htm blog/index.PHP; root /home/zhangy/www; location /test { proxy_pass http://localhost:1080; break; } # location ~ .*\.(PHP|PHP5|html)?$ # location ~ .* # { if (!-e $request_filename){ rewrite ^/tag/(.*) /blog/index.PHP?tag=$1 last; rewrite ^/page/(\d+)$ /blog/index.PHP?paged=$1 last; rewrite ^/(.*)/(\d+)\.html /blog/index.PHP?p=$2 last; rewrite ^/category/(.*) /blog/index.PHP?category_name=$1 last; # rewrite ^/date/([0-9]{4,4})/([0-9]{1,2})?$ /blog/index.PHP?year=$1&monthnum=$2&page=$3 last; # rewrite ^/date/([0-9]{4,2})?$ /blog/index.PHP?m=$1$2 last; rewrite ^/newpage(\d+)$ /blog/index.PHP?page_id=$1 last; rewrite ^/Feed$ /blog/index.PHP?Feed=RSS2 last; rewrite ^/comment/Feed$ /blog/index.PHP?Feed=comment-RSS2 last; rewrite http://blog.51yip.com$ http://blog.51yip.com/blog/index.PHP redirect; } location ~ .*\.(PHP|PHP5)?$ { #fastcgi_pass unix:/tmp/php-cgi.sock; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.PHP; include fastcgi.conf; } log_format wwwlogs '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" $http_x_forwarded_for'; access_log /var/log/wwwlogs.log wwwlogs; } server { listen 10001; server_name :10001; index index.html index.htm index.PHP; root /mnt/song/fastfds2/data; location ~ .*\.(PHP|PHP5)?$ { #fastcgi_pass unix:/tmp/php-cgi.sock; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.PHP; include fastcgi.conf; } location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ { expires 30d; } log_format imagelogs '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" $http_x_forwarded_for'; access_log /var/log/imagelogs.log imagelogs; } server { listen 11211; server_name :11211; location / { stub_status on; access_log off; } } }
2,fastcgi.conf
cd /usr/local/Nginx/conf
nano /usr/local/Nginx/conf/fastcgi.conf
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 $server_name; # PHP only,required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200;
3,优化linux内核参数
nano /etc/sysctl.conf
在末尾加上下面的东东
net.ipv4.tcp_max_syn_backlog = 65536
net.core.netdev_max_backlog = 32768
net.core.somaxconn = 32768
net.core.wmem_default = 8388608
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_tw_recycle = 1
#net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_mem = 94500000 915000000 927000000
net.ipv4.tcp_max_orphans = 3276800
#net.ipv4.tcp_fin_timeout = 30
#net.ipv4.tcp_keepalive_time = 120
net.ipv4.ip_local_port_range = 1024 65535
4,启动Nginx
ulimit -SHn 65535
/usr/local/webserver/Nginx/sbin/Nginx
5,查看启动
[zhangy@BlackGhost www]$ ps -e|grep Nginx
4070 ? 00:00:00 Nginx
4071 ? 00:00:00 Nginx
4072 ? 00:00:00 Nginx
4073 ? 00:00:00 Nginx
4074 ? 00:00:00 Nginx
4075 ? 00:00:00 Nginx
4076 ? 00:00:00 Nginx
4077 ? 00:00:00 Nginx
4078 ? 00:00:00 Nginx
4079 ? 00:00:00 Nginx
五,开机启动
nano /etc/rc.local
ulimit -SHn 65535
/usr/local/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -C 5 -f /usr/bin/php-cgi
/usr/local/Nginx/sbin/Nginx