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yum install -y gcc c++

yum install -y pcre pcre-devel

yum install -y zlib zlib-devel

yum install -y openssl openssl-devel

wget -c https://nginx.org/download/nginx-1.20.1.tar.gz

tar -zxvf nginx-1.20.1.tar.gzcd nginx-1.20.1

./configure

makemake install

cd /usr/local/nginx/sbin/./nginx --启动./nginx -s stop --停止./nginx -s reload --重启

http://192.168.1.27

worker_processes 1;
events { worker_connections 1024;}
http { include mime.types; default_type application/octet-stream;
 #access_log logs/access.log main;
 sendfile on;  keepalive_timeout 65;
 server { listen 80; server_name localhost;
 #charset koi8-r;
 #access_log logs/host.access.log main;
 location / { root html; index index.html index.htm; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } }}

worker_processes 1;

events { worker_connections 1024;}

http { include mime.types; default_type application/octet-stream;
 #access_log logs/access.log main;
 sendfile on;  keepalive_timeout 65;
 server { listen 80; server_name localhost;
 #charset koi8-r;
 #access_log logs/host.access.log main;
 location / { root html; index index.html index.htm; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } }}

vim /usr/local/nginx/sbin/nginx
修改server全局块配置 server { listen 80; server_name 192.168.1.27;
 #charset koi8-r;
 #access_log logs/host.access.log main;
 location / { proxy_pass http://192.168.1.19:8080; root html; index index.html index.htm; }}

./usr/local/nginx/sbin/nginx -s reload

http://192.168.1.27

vim /usr/local/nginx/sbin/nginx
修改server配置 server { listen 80; server_name 192.168.1.27;
 #charset koi8-r;
 #access_log logs/host.access.log main;
 location ~ /tomcat/ { proxy_pass http://192.168.1.19:8080; root html; index index.html index.htm; }
 location ~ /phpstudy/ { proxy_pass http://192.168.1.5:80; }}

./usr/local/nginx/sbin/nginx -s reload

vim /usr/local/nginx/sbin/nginx
在http块中添加
http { upstream myserver{ server 192.168.1.19:8080; server 192.168.1.5:80;}
修改server配置 server { listen 80; server_name localhost;
 location / { proxy_pass http://myserver; root html; index index.html index.htm; }
 }

./usr/local/nginx/sbin/nginx -s reload

http://192.168.1.27

! Configuration File for keepalived
global_defs { #全局配置 notification_email { [email protected] [email protected] [email protected] } notification_email_from [email protected] smtp_server 192.168.1.27 smtp_connect_timeout 30 router_id LVS_DEVEL #访问到主机 vrrp_skip_check_adv_addr vrrp_strict vrrp_garp_interval 0 vrrp_gna_interval 0}

vrrp_script check_http_port{ # 检测脚本配置 script "/usr/local/sec/nginx_check.sh" #脚本文件位置 interval 2 #检测脚本执行的间隔 weight 2 #权重}
vrrp_instance VI_1 { #虚拟IP配置 state MASTER #备份服务器上将MASTER改为BACKUP interface ens33 #网卡 virtual_router_id 51 #主、备机的virtual_router_id 必须相同 priority 100 #主、备机取不同的优先级，主机值较大，备份值较小 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.50 #VRRP 虚拟地址，可以绑定多个 }}

yum install -y keepalivedrpm -q -a keepalived

! Configuration File for keepalived
global_defs { notification_email { [email protected] [email protected] [email protected] } notification_email_from [email protected] smtp_server 192.168.1.27 smtp_connect_timeout 30 router_id LVS_DEVEL vrrp_skip_check_adv_addr vrrp_strict vrrp_garp_interval 0 vrrp_gna_interval 0}

vrrp_script check_http_port{ script "/usr/local/sec/nginx_check.sh" interval 2 weight 2}
vrrp_instance VI_1 { state MASTER interface ens33 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.50 }}

! Configuration File for keepalived
global_defs { notification_email { [email protected] [email protected] [email protected] } notification_email_from [email protected] smtp_server 192.168.1.27 smtp_connect_timeout 30 router_id LVS_DEVEL vrrp_skip_check_adv_addr vrrp_strict vrrp_garp_interval 0 vrrp_gna_interval 0}

vrrp_script check_http_port{ script "/usr/local/sec/nginx_check.sh" interval 2 weight 2}
vrrp_instance VI_1 { state MASTER interface ens33 virtual_router_id 51 priority 50 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.50 }}

vim /usr/local/sec/nginx_check.sh
#!/bin/bashA='ps -C nginx –no-header |wc -l'if [ $A -eq 0 ];then /usr/local/nginx/sbin/nginx sleep 2 if [ 'ps -C nginx --no-header |wc -l' -eq 0 ];then killall keepalived fifi

./usr/local/nginx/sbin/nginx -s reloadsystemctl start keepalived.serviceps -ef | grep keepalived

http://192.168.1.50/

./usr/local/nginx/sbin/nginx -s stopsystemctl stop keepalived.serviceps -ef | grep keepalived

http://192.168.1.50/