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LNMP架構(gòu)之負(fù)載均衡及HTTPS相關(guān)配置

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昭陽網(wǎng)站建設(shè)公司創(chuàng)新互聯(lián),昭陽網(wǎng)站設(shè)計制作，有大型網(wǎng)站制作公司豐富經(jīng)驗。已為昭陽千余家提供企業(yè)網(wǎng)站建設(shè)服務(wù)。企業(yè)網(wǎng)站搭建\成都外貿(mào)網(wǎng)站制作要多少錢，請找那個售后服務(wù)好的昭陽做網(wǎng)站的公司定做！Nginx負(fù)載均衡 ssl原理 生成ssl密鑰對 Nginx配置ssl

Nginx負(fù)載均衡

負(fù)載均衡原理上就是代理，只不過通過設(shè)置多個代理服務(wù)器來實現(xiàn)多用戶訪問時的負(fù)載均衡。同時也可以在某個代理服務(wù)器無法訪問時，切換到另外的代理服務(wù)器，從而實現(xiàn)訪問不間斷的目的。

下面以qq.com為例，配置負(fù)載均衡

先通過dig命令查看域名及其ip

# dig命令由bind-utils包安裝 [root@localhost ~]# yum install -y bind-utils [root@localhost ~]# dig qq.com ; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.1 <<>> qq.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65328 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;qq.com. IN A ;; ANSWER SECTION: qq.com. 404 IN A 61.135.157.156 qq.com. 404 IN A 125.39.240.113 ;; Query time: 40 msec ;; SERVER: 119.29.29.29#53(119.29.29.29) ;; WHEN: 四 1月 04 22:02:25 CST 2018 ;; MSG SIZE rcvd: 67 配置虛擬主機配置文件

[root@localhost ~]# mv /usr/local/nginx/conf/vhost/load.conf # 通過upstream來指定多個web服務(wù)器 upstream qq_com { # ip_hash的目的是讓同一個用戶始終保持在同一個機器上 ip_hash; # 這里是負(fù)載均衡時使用的多個server的ip # server http://61.135.157.157:80; # 上述表示也行，對應(yīng)的server塊內(nèi)的proxy_pass內(nèi)直接寫qq_com即可，不需要寫http:// server 61.135.157.157:80; server 125.39.240.113:80; } server { listen 80; server_name www.qq.com; location / { # 這里使用的是upstream名即qq_com proxy_pass http://qq_com; proxy_set_header Host $host; proxy_set_header X_Real_IP $remote_addr; proxy_set_header X-Forwarded_For $proxy_add_x_forwarded_for; } } 驗證效果

配置未生效時，本地訪問www.qq.com，得到的將是默認(rèn)主機的內(nèi)容

[root@localhost ~]# curl -x127.0.0.1:80 www.qq.com this is default web server

重啟服務(wù)后，獲取到了www.qq.com網(wǎng)頁的源碼

[root@localhost ~]# /usr/local/nginx/sbin/nginx -t nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful [root@localhost ~]# /usr/local/nginx/sbin/nginx -s reload [root@localhost ~]# curl -x127.0.0.1:80 www.qq.com <!DOCTYPE html> <html lang="zh-CN"> <head> <meta content="text/html; charset=gb2312" http-equiv="Content-Type"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="baidu-site-verification" content="cNitg6enc2"> <title><CC><DA>?<CA><D7>?</title> <script type="text/javascript"> if(window.location.toString().indexOf(\'pref=padindex\') != -1){ }else{ if(/AppleWebKit.*Mobile/i.test(navigator.userAgent) || /(Android.*Mobile.+).+Gecko.+Firefox/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){ if(window.location.href.indexOf("?mobile")<0){ try{ if(/Android|Windows Phone|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){ window.location.href="http://xw.qq.com/index.htm"; }else if(/iPad/i.test(navigator.userAgent)){ //window.location.href="http://www.qq.com/pad/" }else{ ...

nginx不支持代理https，即server語句內(nèi)的端口無法使用443。

ssl原理

客戶端向服務(wù)器發(fā)送https請求； 服務(wù)器上存儲了一套數(shù)字證書，其實質(zhì)為一對公私鑰。數(shù)字證書可以自己制作，也可以向組織申請。前者在客戶端訪問時需要驗證才能繼續(xù)訪問；后者不會彈出驗證提示； 服務(wù)器將公鑰傳輸給客戶端； 客戶端驗證公鑰是否合法：無效（自己制作的）會彈出警告，有效的則生成一串隨機數(shù)，用此隨機數(shù)加密公鑰； 客戶端將加密后的字符串傳輸給服務(wù)器 服務(wù)器收到字符串后，先使用私鑰進(jìn)行解密，獲取加密使用的隨機數(shù)，并以此隨機數(shù)加密傳輸?shù)臄?shù)據(jù)（對稱機密）； 服務(wù)器將加密后的數(shù)據(jù)傳輸給客戶端； 客戶端收到數(shù)據(jù)后，使用自己的私鑰（即隨機字符串）進(jìn)行解密。

對稱加密：將數(shù)據(jù)和私鑰（隨機字符串）通過某種算法混合在一起，除非知道私鑰，否則無法解密。

生成SSL密鑰對 創(chuàng)建私鑰key

[root@localhost ~]# cd /usr/local/nginx/conf # 創(chuàng)建私鑰key文件，必須輸入密碼，否則無法生成key文件 [root@localhost conf]# openssl genrsa -des3 -out tmp.key 2048 Generating RSA private key, 2048 bit long modulus ..............................+++ ...............................................................+++ e is 65537 (0x10001) Enter pass phrase for tmp.key: Verifying - Enter pass phrase for tmp.key: 轉(zhuǎn)換key，取消密碼

[root@localhost conf]# openssl rsa -in tmp.key -out test.key Enter pass phrase for tmp.key: writing RSA key [root@localhost conf]# rm -f tmp.key 生成證書

[root@localhost conf]# openssl req -new -key test.key -out test.csr You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter \'.\', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:ZheJiang Locality Name (eg, city) [Default City]:QuZhou Organization Name (eg, company) [Default Company Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, your name or your server\'s hostname) []: Email Address []: Please enter the following \'extra\' attributes to be sent with your certificate request A challenge password []: An optional company name []: # 需要使用csr文件與私鑰一起生成.crt文件 [root@localhost conf]# openssl x509 -req -days 365 -in test.csr -signkey test.key -out test.crt Signature ok subject=/C=CN/ST=ZheJiang/L=QuZhou/O=Default Company Ltd Getting Private key

Nginx配置SSL 創(chuàng)建新虛擬主機配置文件

[root@localhost conf]#vim /usr/local/nginx/conf/vhost/ssl.conf server { listen 443; server_name test.com; index index.html index.php; root /data/www/test.com; ssl on; ssl_certificate test.crt; ssl_certificate_key test.key; ssl_protocols TLSv1 TLS1.1 TLS1.2； } 創(chuàng)建對應(yīng)目錄及文件

[root@localhost conf]# mkdir -p /data/www/test.com [root@localhost conf]# vim /data/www/test.com/index.php ssl test page. 重啟服務(wù)

/usr/local/nginx/sbin/nginx -t /usr/local/nginx/sbin/nginx -s reload 設(shè)置時報錯 -- unknown directive “ssl”

這時由于一開始編譯時未將http_ssl_module模塊編譯進(jìn)nginx，需要重新編譯安裝

[root@localhost conf]# cd /usr/local/src/nginx-1.12.2/ [root@localhost nginx-1.12.2]# ./configure --prefix=/usr/local/nginx --with-http_ssl_module [root@localhost nginx-1.12.2]# make && make install

重新編譯后將導(dǎo)致之前配置的虛擬主機配置文件丟失，最后在重新編譯前對有用的nginx虛擬主機文件進(jìn)行備份

編譯完成后查看

[root@localhost conf]# /usr/local/nginx/sbin/nginx -V nginx version: nginx/1.12.2 built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) built with OpenSSL 1.0.2k-fips 26 Jan 2017 TLS SNI support enabled configure arguments: --prefix=/usr/local/nginx/ --with-http_ssl_module 重啟nginx服務(wù)

# 重新編譯后的nginx必須使用/etc/init.d/nginx腳本進(jìn)行重啟 [root@localhost conf]# /etc/init.d/nginx restart Restarting nginx (via systemctl): [ 確定 ] # 查看443端口是否開放 [root@localhost conf]# netstat -lntp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1354/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2116/master tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 4953/nginx: master tcp6 0 0 :::3306 :::* LISTEN 2156/mysqld tcp6 0 0 :::22 :::* LISTEN 1354/sshd tcp6 0 0 ::1:25 :::* LISTEN 2116/master 效果驗證 curl驗證

# 如果不想使用-x指定ip，可以在/etc/hosts內(nèi)添加如下代碼 [root@localhost conf]# vim /etc/hosts 127.0.0.1 test.com # curl測試 [root@localhost conf]# curl https://test.com curl: (60) Peer\'s certificate issuer has been marked as not trusted by the user. More details here: http://curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification by default, using a "bundle" of Certificate Authority (CA) public keys (CA certs). If the default bundle file isn\'t adequate, you can specify an alternate file using the --cacert option. If this HTTPS server uses a certificate signed by a CA represented in the bundle, the certificate verification probably failed due to a problem with the certificate (it might be expired, or the name might not match the domain name in the URL). If you\'d like to turn off curl\'s verification of the certificate, use the -k (or --insecure) option. 瀏覽器驗證 同樣的要修改客戶端上的hosts文件，添加一行代碼如下：

192.168.65.133 test.com

同時要檢查服務(wù)器端的防火墻是否開放443端口，這里為了測試方便，直接清空了iptables規(guī)則表

[root@localhost conf]# iptables -F

標(biāo)題名稱：LNMP架構(gòu)之負(fù)載均衡及HTTPS相關(guān)配置
轉(zhuǎn)載注明：http://chinadenli.net/article12/cpdigc.html

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