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Lua Nginx | Openresty: how to get POST data

phptuts April 14, 2022

Case 1: client_body_in_file_only off; Case 2: client_body_in_file_only clean; client_body_in_file_only on; We recommend using client_body_in_file_only clean; and read binary file when PUT content of file to…

Lua snippet: check file exists

phptuts April 14, 2022

Lua snippet: check file exists Example: Online demo: here

How to install ffmpeg on Ubuntu 20.04

phptuts April 13, 2022

How to install ffmpeg on Ubuntu 20.04 sudo apt install ffmpeg Result: Check:

Lua snippet: copy file

phptuts April 12, 2022

Lua snippet: copy file Source: https://forum.cockos.com/showpost.php?&p=2360581&postcount=3 In this snippet we see method to get file size: new_file_sz = new_file:seek( "end" )

How to fix docker and ufw security problem

phptuts April 12, 2022

Example: we use docker to install nodes for mongodb replica set : http://tutorialspots.com/use-docker-to-run-mongodb-replica-set-6859.html But we can access port 27017 any where !!! how to fix…

Lua Nginx | Openresty : lua-resty-string error: undefined symbol: EVP_CIPHER_CTX_init

phptuts April 12, 2022

Sample code: Check log: tail /var/log/nginx/error.log Reason: lua-resty-string v0.15 remove EVP_CIPHER_CTX_init Check here Check version in file: /usr/local/share/lua/5.1/resty/string.lua lua-resty-string Version 0.09 You must update to…

Luarocks/git error: The unauthenticated git protocol on port 9418 is no longer supported.

phptuts April 11, 2022

Example error: Fix: run this command first: git config --global url."https://".insteadOf git:// Done, retry: now, we have two files xmodem.lua rediscluster.lua in folder /usr/local/share/lua/5.1/resty/

Ubuntu 20.04: install MongoDB Driver for Lua

phptuts April 9, 2022

Step 1: install luarocks Step 2: install libbson and libmongoc Step 3: install Lua Mongo Done! now we have file /usr/local/lib/lua/5.1/mongo.so Note: to use with…

Ubuntu 20.04: Install Lua dynamic module onto Nginx

phptuts April 9, 2022

Step 1: Install Nginx apt-get install nginx Result: Step 2: download sources Result: Step 3: install tar make gcc apt-get install tar make gcc Result:…

Use Docker to run MongoDB Replica Set

phptuts April 9, 2022

Step 1: Pull Mongo DB images docker pull mongo:4 Step 2: Create a docker network Example network name: mongo-replicaset docker network create mongo-replicaset Step 3:…