LINUX | Free Online Tutorials

Ubuntu error: Sub-process /usr/bin/dpkg returned an error code (1)

phptuts May 17, 2022

Example error: We see the main reason is trying to overwrite '/usr/bin/bsondump', which is also in package mongo-tools 3.6.3-0ubuntu1 Caused package: mongo-tools Solution: Step 1:…

Ubuntu cmake error: No CMAKE_CXX_COMPILER could be found

phptuts April 30, 2022

Error: No CMAKE_CXX_COMPILER could be found. Solution: Install g++ apt-get install g++

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:

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…

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:…

How To Set Up a Firewall with UFW on Ubuntu 20.04

phptuts April 9, 2022

UFW is installed by default on Ubuntu, so you don’t need to install this. Setting Up Default Policies To set the default UFW incoming policy…

Install Docker on Ubuntu 20.04.3

phptuts April 8, 2022

Step 1: remove old versions: sudo apt-get remove docker docker-engine docker.io containerd runc Step 2: Update the apt package index and install some packages sudo…

How to install php-mongodb module for PHP 7 on CentOS 7

phptuts February 8, 2022

Example for PHP 7.2.34 Step 1: Step 2: make symbolic link for mongodb.so ln -s /opt/remi/php72/root/usr/lib64/php/modules/mongodb.so /usr/lib64/php/modules/mongodb.so Step 3: copy file 50-mongodb.ini cp /etc/opt/remi/php72/php.d/50-mongodb.ini /etc/php.d…