Ubuntu
Steps to Achieve This Setup: 1. Install OpenSSH Server (if not already installed): sudo apt update sudo apt install openssh-server 2. Create Users (If Not Already Created): sudo adduser user1 # uses RSA key authentication. sudo adduser user2 # uses password authentication. 3. Configure SSH for RSA Key Authentication (For user1) a.
Ubuntu
By default, Ubuntu uses Netplan to manage network configurations. Follow these steps to manually configure a static IP address. Step 1: Check Available Network Interfaces Before modifying the configuration, determine your network interface name. Open the terminal and run: ifconfig -a If ifconfig is not installed, use: ip a Look
Programing
Filesystem Requirements Before installing Ollama, make sure your system meets the following requirements: * No Administrator Privileges Needed: Ollama installs in your home directory by default. * Storage Space: * 4GB for the Ollama binary install. * Additional tens to hundreds of GBs for storing large language models. By default, Ollama is installed in
PostgresSQL
PostgreSQL Basic Commands: Backup Command: To create a backup of your PostgreSQL database, use the pg_dump command as follows: pg_dump -h <db_host> -U <username> -d <database> > backup.sql * <username>: Replace with your PostgreSQL username. * <database>: Replace
aws
Amazon EC2 instances are usually accessed using SSH—it’s straightforward and familiar. But what if SSH isn’t an option? Maybe you lost your SSH key (it happens), or some overzealous firewall settings closed off SSH ports. Whatever the reason, being locked out of your instance isn’t fun.
s3 bucket
Prerequisites: Ensure that the Mountpoint package is installed and properly configured on your Ubuntu system. If you haven’t installed or configured Mountpoint yet, please refer to the article: Install and Configure Mountpoint on Ubuntu Currently, Mountpoint does not natively support automatically mounting an S3 bucket during system boot. However,
aws
Using AWS Transfer Family for SFTP can cost over $200/month. Instead, you can set up a more cost-effective SFTP solution by hosting an SFTP server on an EC2 instance and mounting an S3 bucket using Mountpoint for S3. Below are the steps to achieve this: A. Mounting an S3
n8n
By adding the external pg package to a custom n8n Docker image, you can easily use a Code node to interact with PostgreSQL. Here’s a step-by-step guide to achieve this. Dockerfile The Dockerfile adds the PostgreSQL package (pg) globally to the n8n image. # Use the latest official n8n image
GitHub
When collaborating in Git, managing your commit history effectively is crucial for maintaining a clean, readable repository. Rebase is a powerful tool that helps achieve this by avoiding unnecessary merge commits. The Problem with Unnecessary Merge Commits When using git pull (without --rebase), Git merges the latest changes from the
GitHub
Scenario 1: Merge Code from develop to main and Keep develop for Ongoing Work To merge your finished work from the develop branch into the main branch while keeping the develop branch intact for future development, follow these steps: # Switch to the main branch: git checkout main # If you have
Synology
Network File System (NFS) is a powerful way to create shared storage for VMware ESXi hosts. If you're looking to set up an NFS datastore on your Synology NAS and integrate it with VMware ESXi, this guide walks you through the process step by step. Let’s get
Javascript
1. Array Methods 1: [1, 2, 3].length; // 3 [1, 2, 3].push(4); // [1, 2, 3, 4] [1, 2, 3].unshift(0); // [0, 1, 2, 3] [1, 2, 3].pop(); // [1, 2] [1, 2, 3].shift(); // [2, 3] [1, 2, 3].at(2); // 3 [1, 2, 3].indexOf(3)