由于directadmin自带功能太少，所以就补充一下。
1、配置custombuild
cd /usr/local/directadmin/custombuild mkdir -p custom/nginx cp -fp configure/nginx/configure.nginx custom/nginx/
2、编辑/usr/local/directadmin/custombuild/custom/nginx/configure.nginx
新内容如下：
#!/bin/sh
./configure
"--user=nginx"
"--group=nginx"
"--prefix=/usr"
"--sbin-path=/usr/sbin"
"--conf-path=/etc/nginx/nginx.conf"
"--pid-path=/var/run/nginx.pid"
"--http-log-path=/var/log/nginx/access_log"
"--error-log-path=/var/log/nginx/error_log"
"--without-mail_imap_module"
"--without-mail_smtp_module"
"--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='-D FD_SETSIZE=32768'"
3、安装依赖库
yum -y install gd-devel yum -y install GeoIP-devel yum -y install gperftools-devel
4、重编译nginx
./build nginx
5、重启nginx
systemctl restart nginx systemctl restart directadmin
6、应用设置
./build used_configs