Oct 10 2017

Installing macOS High Sierra on Proxmox 5

This tutorial for installing macOS Sierra has been adapted for Proxmox 5 from Kholia’s GitHub project for installing into vanilla KVM. There is more documentation there which will help out with enabling extra features and diagnosing problems!

Source: Installing macOS High Sierra on Proxmox 5 (Nicholas Sherlock)

Oct 06 2017

How to Use “ipset” to Block IPs from Country

Previously we learned how we can restrict or allow a particular country using GeoIP but in this article, we’ll cover how we can block large IP ranges using ipset module with iptables. IPset is a command line based utility which is used to administer the framework called IP sets inside the Linux kernel. An IP set may store IP addresses, networks, (TCP/UDP) port numbers, MAC addresses, interface names or combinations of them in a way, which ensures lightning speed when matching an entry against a set. It is an associative application for the iptables Linux firewall which allows us to setup rules quickly and easily to block a set of IP addresses. Here, we’ll see how we can use ipset module with iptables to block a large ranges of IP addresses in our linux based machine.

Source: How to Use “ipset” to Block IPs from Country (LinOxide)

Oct 03 2017

How to Block IPs from Countries using Iptables Geoip Addons

We’ll learn how we can block traffic originated from specific country IPs using GeoIP database and linux iptables. Iptables is a command based utility program for configuring the linux kernel firewall which is implemented within the Netfilter project. Whereas GeoIP is a collection of IPs corresponding with the geographical locations where the geographical location is mapped with the IP addresses allocated at those specific organization, city, state and countries. The geographical co-ordinates in the GeoIP database are the often near the center of the population so it should not be used to identify a particular address or household. And with the help of a module called xt_geoip consisting in an iptables extension xtables-addon and the GeoIP database, we’ll perform country-based traffic filtering which helps us block or allow the traffic from a specific country.

Source: How to Block IPs from Countries using Iptables Geoip Addons (LinOxide)

Oct 01 2017

3 Python web scrapers and crawlers

Check out these great Python tools for crawling and scraping the web, and parsing out the data you need.

Source: 3 Python web scrapers and crawlers | Opensource.com

Sep 27 2017

Understanding Linux Permissions

Linux is a multiuser operating system. In a multiuser environment, it is necessary to ensure that a user cannot access or modify files or directories that they arent supposed to. File permissions provide a protection mechanism for controlling access to files and directories.

Linux’s file security model is based on that of Unix. Each file or directory can be accessed or modified by the user who created it, or a group of users who have been given permission to do so. Permissions can also be defined for other users that do not belong to either of these two categories.

In this guide, we will go over how file permissions work in Linux for beginners. We’ll cover how you can view the permissions associated with files and directories and also how you can change them.

Source: Understanding Linux Permissions (Linux Academy)

Sep 26 2017

How to Clear the Google Chrome DNS Cache

Flushing your DNS cache can help to fix host connection problems you may experience when accessing some web pages. To get a better Internet access performance, Google built a caching system, not only for site content but DNS as well. So yes, Google Chrome does have a built-in internal DNS caching system – a hidden feature that allows users to manually clear out the Chrome DNS host cache from within the browser itself.

Flushing out the Chrome DNS cache can prove useful, especially when you have changed the DNS settings. If clearing out the DNS cache from the operating system level does not fix the host connection problems, clearing up Chrome’s own DNS cache should do the trick.

This article will show you step by step how to clear the Chrome DNS cache.

Source: How to Clear the Google Chrome DNS Cache – Make Tech Easier

Sep 25 2017

freezetab: A powerful alternative to bookmarks in the Chrome browser

Freezetab helps you save your tabs and keep them organized.

Features:

★ Tab Groups

Every time you save a bookmark the browser forces you to pick a folder to put the bookmark in. You often don’t have a folder name in mind, so all of your tabs end up in one giant unorganized folder. Freezetab doesn’t force you to create a new folder every time you save a tab. Instead it groups your tabs based on when you saved them, which keeps your tabs organized without any extra effort.

★ Websites

Wouldn’t it be nice if you could view a breakdown of all your saved tabs based on the websites the tabs are from? Freezetab allows you to accomplish this in just a single click.

★ Tab Calendar

Imagine you saved a tab on a certain day, but you don’t remember the title or name of the website. With Freezetab’s calendar you can click on a day to view a searchable list of every tab you saved that day.

★ Sharing

With Freezetab sharing tabs is incredibly easy. Just click share in any folder or tab group and a text box will appear with all your links.

★ Search

Unlike the browser’s bookmarking system, Freezetab starts searching as soon as you start typing. The search results update every time you type a character into the search box. Freezetab’s search is incredibly accurate. It searches based on the title of the website, the name of the website, and even the titles of your tab groups.

★ Save Tabs

Browsers only give you two options for saving tabs: the current tab, or every tab. Freezetab allows you to save all tabs, the current tab, everything except the current tab, everything to the right or left of the current tab, or specific tabs. And after you’ve saved your tabs, Freezetab asks if you’d like to close the saved tabs to get them out of the way.

★ Quick Save

Sometimes you just need to quickly save some tabs without all the extra hassle. Freezetab has a quick save feature that saves all your tabs, and then closes them. You can change the default action in the settings.

★ Sorting

Freezetab offers six different ways of sorting your tab groups. You can sort from A-Z, Z-A, oldest to newest, newest to oldest, least to greatest, and greatest to least. You can also search for a tab group by name using the search box.

★ Close Tabs

Browsers offer a few different options for closing tabs. You can close the entire window, the current tab, everything to the right of the current tab, and everything except the current tab. Freezetab adds two additional options: you can close everything to the left of the current tab, or specific tabs. Closing specific tabs can be really useful when you have so many tabs open that the browser doesn’t display their titles.

★ Folders

Browsers have only one way of organizing your saved tabs: dragging and dropping from one folder to another. Before you can organize tabs with folders, you need to find the tabs you’re trying to organize. Freezetab allows you to sort your tabs based on the title or name of the website, the date you saved them, and a variety of other ways. After you’ve found the tabs you’re looking for, you can drag and drop them into folders.

★ Stars

Sometimes you need to quickly mark a tab or tab group as important. Freezetab has a star feature that does exactly this.

Link: Freezetab

Sep 13 2017

OpenSnitch: The Little Snitch application like firewall tool for Linux – nixCraft

Little Snitch is a traditional software firewall for macOS. You can use it to monitor applications, preventing or permitting them to connect to attached networks through advanced rules. OpenSnitch is a GNU/Linux port of the Little Snitch application firewall written in Python.

Source: OpenSnitch: The Little Snitch application like firewall tool for Linux (nixCraft)

Sep 11 2017

Enpass Is The Free Cross-Platform Password Manager

Previously we covered KeePassXC password manager which is also free application. Here comes another password manager called Enpass, it is free and cross-platform available for Linux, Windows, Mac, Android, Blackberry, Windows Phone and iOS.

Source: Enpass Is The Free Cross-Platform Password Manager (NoobsLab)

Aug 31 2017

The Ultimate Firefox Privacy & Security Guide – Make Tech Easier

Online privacy and security are constantly under assault. It seems like every day there’s a new threat to your personal information. Choosing and configuring the right web browser goes a long way in protecting yourself. Right now Firefox is the best option for that. It’s open source, gives you tons of options for control, and has all of the privacy and security add-ons you’ll need.

This guide is as complete as it can be at the time of writing. These are ever-evolving topics, and threats continue to change. Regardless, this guide will give you a good basis to protect yourself from common threats.

Source: The Ultimate Firefox Privacy & Security Guide – Make Tech Easier

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