Chuletas: Common Linux Shell Commands

Common Linux Shell Commands ls : list files/directories in a directory, comparable to dir in windows/dos. ls -al : shows all files (including ones that start with a period), directories, and details attributes for each file. cd : change directory ·· cd /usr/local/apache : go to /usr/local/apache/ directory cd ~ : go to your home directory cd – : go …

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Amazing big data sources

Free Data Source: Government Data.gov: It is the first stage and acts as a portal to all sorts of amazing information on everything from climate to crime freely by the US Government. Data.gov.uk: There are datasets from all UK central departments and a number of other public sector and local authorities. It acts as a …

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Techniques to restart Apache without rebooting CentOS Linux server

Restarting the Apache httpd Web server commonly comes into play in the following scenarios: When updating the Web server’s configuration file. When httpd itself becomes hopelessly confused and unresponsive. To test other services in isolation. The trick is stop & start Apache without having to reboot the hosted CentOS Linux server. To get started, you’ll …

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VPNs, Public Spaces And Travel

VPN To Protect My Identity While Travelling? Think of all the personal information that we deal with online. Think of Facebook, Instagram, Twitter, or even more sensitive data like our messages, Google searches, and our emails. Consider everything we type or click on when we use our computers or cell phones. All of that identity …

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Web-Based Color Tools

These tools are all 100% free, so they’re easy to bookmark and reuse time & time again. They can also work for web, mobile, print, or any other medium that needs incredible colors. 1. ColorHexa Recently I was browsing the web and stumbled onto ColorHexa. It’s by far one of the coolest color tools I’ve ever …

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How We Searched Before Search

  Everyone knows how to search the web. It’s part of our vernacular. But “googling it” was not always a given. In the early days of the web, discovering new sites looked a lot different. The first web servers to come online came mostly from academic and scientific institutions, and in some rarer cases, dedicated …

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htaccess blocking recipes

Block by IP address You might have one particular IP address, or multiple IP addresses that are causing a problem on your website. In this event, you can simply outright block these problematic IP addresses from accessing your site.     Block a single IP address If you just need to block a single IP …

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6G Firewall

The 6G Firewall is a powerful, well-optimized blacklist that checks all URI requests against a set of carefully constructed .htaccess directives. This happens quietly behind the scenes at the server level, which is optimal for performance and resource conservation. Most WordPress plugins require both PHP and MySQL, which can be overkill and even wasteful depending on the scenario and your …

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