使用nginx走ldap认证：
将原nginx进行备份：
[root@daya-02 nginx-1.12.2]# mv /usr/sbin/nginx /usr/sbin/nginx.bak
[root@daya-02 nginx-1.12.2]# cp -r /etc/nginx/ /etc/nginx_bak
查看当前安装好的nginx版本：
[root@daya-02 ~]# nginx -V
nginx version: nginx/1.12.2
下载相同版本的源码包：
[root@daya-02 ~]# wget http://nginx.org/download/nginx-1.12.2.tar.gz
[root@daya-02 ~]# tar xf nginx-1.12.2.tar.gz
下载需要ldap需要的扩展包：
git clone https://github.com/kvspb/nginx-auth-ldap.git
查看原nginx的编译参数：
[root@daya-02 nginx-1.12.2]# nginx -V
nginx version: nginx/1.12.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_auth_request_module --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_geoip_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_stub_status_module --with-http_perl_module=dynamic --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic' --with-ld-opt='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E'
再次编译就需要原来的编译参数加上需要添加的参数就好：
[root@daya-02 nginx-1.12.2]# ./configure --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_auth_request_module --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_geoip_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_stub_status_module --with-http_perl_module=dynamic --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic' --with-ld-opt='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E' --add-module=/root/nginx-auth-ldap
然后执行make，只make就好不用install
检查是否可用：
[root@daya-02 nginx-1.12.2]# ./objs/nginx -t
进行替换：
[root@daya-02 nginx-1.12.2]# cp ./objs/nginx /usr/sbin/
重启：
[root@daya-02 nginx-1.12.2]# nginx -s reload
配置ldap认证：
遇到问题：
./configure: error: the HTTP XSLT module requires the libxml2/libxslt
yum install libxslt-devel -y
./configure: error: the HTTP image filter module requires the GD library.
yum install gd-devel -y
./configure: error: perl module ExtUtils::Embed is required
yum -y install perl-devel perl-ExtUtils-Embed
./configure: error: the GeoIP module requires the GeoIP library.
yum -y install GeoIP GeoIP-devel GeoIP-data
./configure: error: the Google perftools module requires the Google perftools
yum install gperftools -y
./configure: error: SSL modules require the OpenSSL library.
yum -y install openssl openssl-devel