To use third-party modules ngx_echo functions, reconfigure Add to nginx plugin
## download third-party modules
wget https://github.com/openresty/echo-nginx-module/archive/v0.61.tar.gz
tar -zxvf v0.61.tar.gz ## -extracting
cd nginx-1.15.8 ## enter nginx source directory, ready to re-configure nginx
## configuration, --add-Module1 pointing module plug into a directory that is installed nginx in
./configure --add-module=/usr/local/src/echo-nginx-module-0.61/
make && make install