3182235786a
1、系统基础信息[root@tiejiang-src1 ~]# ifconfig eth0|grep inet addr|awk -F “:” {print $2}|awk {print $1}192.168.83.129
[root@tiejiang-src1 ~]# cat /etc/redhat-releaseCentOS release 6.5 (Final)[root@tiejiang-src1 ~]# uname -r
2.6.32-431.el6.x86_642、安装基础依赖包[root@tiejiang-src1 ~]# yum install -y readline-devel pcre-devel openssl-devel
3、下载并编译安装openresty[root@tiejiang-src1 ~]# cd /usr/local/src/[root@tiejiang-src1 src]# wget https://openresty.org/download/ngx_openresty-1.9.3.2.tar.gz
[root@tiejiang-src1 src]# tar zxvf ngx_openresty-1.9.3.2.tar.gz[root@tiejiang-src1 src]# cd ngx_openresty-1.9.3.2
[root@tiejiang-src1 ngx_openresty-1.9.3.2]# ./configure –prefix=/usr/local/openresty-1.9.3.2 –with-luajit –with-http_stub_status_module –with-pcre –with-pcre-jit
[root@tiejiang-src1 ngx_openresty-1.9.3.2]# gmake && gmake install[root@tiejiang-src1 ngx_openresty-1.9.3.2]# ln -s /usr/local/openresty-1.9.3.2/ /usr/local/openresty
4、测试openresty安装[root@tiejiang-src1 ~]# vim /usr/local/openresty/nginx/conf/nginx.confserver {location /hello {
default_type text/html;content_by_lua_block {ngx.say(“HelloWorld”)}}}[root@tiejiang-src1 ~]# /usr/local/openresty/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/openresty-1.9.3.2/nginx/conf/nginx.conf syntax is oknginx: configuration file /usr/local/openresty-1.9.3.2/nginx/conf/nginx.conf test is successful
[root@tiejiang-src1 ~]# /usr/local/openresty/nginx/sbin/nginx5、WAF部署：在github上克隆下代码[root@tiejiang-src1 ~]# yum -y install git
[root@tiejiang-src1 ~]# cd /usr/local/openresty/nginx/conf/[root@tiejiang-src1 conf]# git clone https://github.com/unixhot/waf.git
6、修改Nginx的配置文件，加入（http字段）以下配置注意路径，同时WAF日志默认存放在/tmp/日期_waf.log[root@tiejiang-src1 ~]# vim /usr/local/openresty/nginx/conf/nginx.conf。
http {include mime.types;default_type application/octet-stream;#WAFlua_shared_dict limit 50m;lua_package_path “/usr/local/openresty/nginx/conf/waf/?.lua”;
init_by_lua_file “/usr/local/openresty/nginx/conf/waf/init.lua”;access_by_lua_file “/usr/local/openresty/nginx/conf/waf/access.lua”;
[root@tiejiang-src1 conf]# /usr/local/openresty/nginx/sbin/nginx -tnginx: the configuration file /usr/local/openresty-1.9.3.2/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/openresty-1.9.3.2/nginx/conf/nginx.conf test is successful[root@tiejiang-src1 conf]# /usr/local/openresty/nginx/sbin/nginx -s reload
7、根据日志记录位置，创建日志目录[root@tiejiang-src1 conf]# mkdir /tmp/waf_logs[root@tiejiang-src1 conf]# chown www.www /tmp/waf_logs
二、启用waf并做测试1、模拟sql注入即url攻击
检测顺序：先检查白名单，通过即不检测；再检查黑名单，不通过即拒绝，检查UA，UA不通过即拒绝；检查cookie；URL检查;URL参数检查，post检查；日志显示如下,记录了UA，匹配规则，URL，客户端类型，攻击的类型，请求的数据
[root@tiejiang-src1 ~]# tail -f /tmp/2018-07-30_waf.log{“user_agent”:”Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/67.0.3396.99 Safari\/537.36″,”rule_tag”:”\\.(bak|inc|old|mdb|sql|backup|java|class|tgz|gz|tar|zip)$”,”req_url”:”\/eastmonet.sql”,”client_ip”:”192.168.83.1″,”local_time”:”2018-07-30 10:46:52″,”attack_method”:”Deny_URL”,”req_data”:”-“,”server_name”:”localhost”}
2、使用ab压力测试工具模拟防CC攻击[root@tiejiang-src2 ~]# ifconfig eth0|grep inet addr|awk -F “:” {print $2}|awk {print $1}
192.168.83.131
将对方IP放入黑名单[root@tiejiang-src1 ~]# echo 192.168.83.131 >> /usr/local/openresty/nginx/conf/waf/rule-config/blackip.rule
[root@tiejiang-src1 ~]# /usr/local/openresty/nginx/sbin/nginx -s reload再拿192.168.83.131访问的时候就提示403了
将对方IP放入白名单[root@tiejiang-src1 ~]# echo 192.168.83.131 >> /usr/local/openresty/nginx/conf/waf/rule-config/whiteip.rule
[root@tiejiang-src1 ~]# /usr/local/openresty/nginx/sbin/nginx -s reload此时将不对此ip进行任何防护措施，所以sql注入时应该返回404
目录：waf目录：/usr/local/openresty/nginx/conf/waflua配置文件：/usr/local/openresty/nginx/conf/waf/config.luaWaf的ip黑名单：/usr/local/openresty/nginx/conf/waf/rule-config/blackip.rule
Waf的ip白名单：/usr/local/openresty/nginx/conf/waf/rule-config/whiteip.ruleWaf的规则存放目录：/usr/local/openresty/nginx/conf/waf/rule-config
