Knowing how to solve the Rubik's Cube is an amazing skill and it's not so hard to learn if you are patient. You'll realize that you don't have to be a genius to get it done. Let's start with the white face.
Try to form a plus sign on the top of the cube, matching the colors of the side stickers to the colors of the lateral centers. This step shouldn't be too hard, try to do this without reading the examples below.
We can easily insert the edge to the top if you move it to the highlighted bottom-front spot first. Depending on where the white sticker is facing do the rotations. When the white edge is stuck between two solved edges last image you can send it to the bottom layer doing this:. When the white edges are matching we can move on to solve the white coners. First put the white corner that belongs to the spot marked with the upper arrow in either of the highlighted positions.
Next repeat the algorithm below until the white piece comes to its desired destination. This trick sends the piece back and forth between the top and bottom locations, twisting the corner in each step. Using this you can solve each white corner in less than 6 iterations. At the end your cube should have a solid white face with the lateral stickers matching the lateral centers. Turn your cube upside down because we don't need to work with the white face anymore.
We can insert an edge piece from the top-front position to the middle layer using a trick. Do the left or right algorithm depending on which side you have to insert the piece:. When a center layer piece is in a wrong position you can use the same trick to take it out. Inspect the top of your cube. You see a yellow cross, a line, an L-shape or a dot. Our goal is to form a yellow cross.
We have a yellow cross on the top but the edges are not in their final position. They need to match the side colors. Only the yellow corners are left unsolved at this point. Now we are going to put them in their final position and we'll rotate them in the last step.
Use the algorithm below to cycle the pieces in the direction marked with the arrows while the top-right-front piece is standing still. Everything is positioned, we just have to orient the yellow corners. We use the same algorithm that we used for solving the white corners in the second step:.Please note this walkthrough is for the devel version of pfBlockerNG. First, I was lucky enough to be a beta tester for this release and the number of changes are astounding.
Second, the configuration is 10X easier. Last but not least, the package is extremely stable and it has been around since This is especially important if you are on a pfSense before 2. Version 2. The upgrade guide also emphasizes creating backups, rebooting before updates, etc. I love pfSense and if I could only install one package to enhance its capabilities, it is undoubtedly pfBlockerNG. It is the very first package I install after configuring a brand new pfSense and in some cases, it is the only one.
If your using this in a production environment, I highly encourage you to donate. Advertising is great because it pays content creators for their work. After all, even this site utilizes Google Ads.
So why would I create a write-up on blocking ads? Even the background of the featured image above for this article was what I received when I was originally writing this up in my lab with no ad blocking, i. I visited a site for 30 seconds on a brand new, fully patched Windows system with an up-to-date Google Chrome install. Yes, advertising really is out of hand! Even the U. If you installing pfBlockerNG for the first time, skip this step and go to installation.
If you go this route, I would suggest taking screenshots of your various settings as well as the feeds you currently use so you can ensure you add them back in.
Trust me when I say that adding feeds in the devel version is point and click! This will take a bit of time as it has to download several files and databases. At this point, the package is installed. The wizard is literally 4 steps and I highly suggest using it to get you started. Finish up the wizard and you will be automatically directed to the update page.
The update will likely take a little bit to complete as it is downloading the various IP and DNSBL feeds associated with the wizard setup. So far so good!In this guide, I will walkthrough how to install and test the pi-hole on Ubuntu and more specifically, Ubuntu Server.
These same instructions may work on Ubuntu Desktop, but I strongly suggest Server. Why Ubuntu instead of a Raspberry Pi? I love Raspberry Pis and I probably own at least 10 of them. Instead, the project officially supports So why install it on Ubuntu I install systems with the intention to not make significant changes to them for some time and the end of life for Changelog 24July — Originally posted 1Sept — Added steps to fix Additional steps for Added section on removing hosts-file. Advertising is great because it pays content creators for their work.
After all, even this site utilizes Google Ads. So why would I create a write-up on blocking ads? As a result, blocking advertising has become an absolute necessity for those who are security conscious.
As many have figured out, a side benefit of blocking ads is a better user experience and a substantial drop in bandwidth usage. If you own a pfSense, I would strongly suggest using the aforementioned guide to create an experience very similar to the pi-hole.
Using pfBlockerNG on pfSense has quite a few additional features such as IP blocking and quite honestly, there is no need to add yet another system to manage. Installing Ubuntu server is ridiculously easy. Note: There is a slight difference in the install steps if you are installing I explain where the 2 install paths diverge in the Ubuntu You can safely use the defaults throughout the installation, although I would install security updates automatically when given the option.
You may also need to install SSH if that is how you plan to access and manage your server remotely other than the web interface. You could potentially require more resources if you have a lot of devices or those devices make a ton of DNS requests. That is something you will need to keep an eye on after you get it up and running! After your Ubuntu system finishes the install and reboots, login via an SSH terminal or from the console. You should be greeted with a welcome screen similar to the one below with the exception your package and security update counts may be different.
Once you are logged in and sitting at a terminal prompt, run package updates manually using the command below. Note the command will do the repository update, upgrade the packages, and then reboot in one fell swoop. Grab your favorite beverage and let that process run its course. After the system updates and reboots, log back in via SSH or the console.Sam has over 10 years of experience working with pfSense firewalls and has written over 30 articles on the subject.
Using a VPN, or virtual private network, is the most secure way to remotely access your home or business network. VPNs provide strong security by encrypting all of the traffic sent between the network and the remote client. Since pfSense is open source and available for free this project won't cost you anything to complete. This guide assumes you already have a functional pfSense firewall running.
If you don't have one yet you can easily build one using an old computer, or even run a virtual one using VirtualBox. Connect to your network securely using a VPN tunnel.
The wizard will guide you through the process of creating a certificate authority, issuing a server certificate, and configuring the OpenVPN server settings. For the first step of the configuration wizard you will need to choose the authentication backend type.
OpenVPN provides three different authentication methods. Local user access is the simplest method since it does not require an external authentication server.
The next configuration step is to create a certificate authority for issuing certificates. If you are creating a new CA then you will need to fill out all of the fields in the wizard in order to continue. The default key length of bits is sufficient but you can use a longer length key if more security is required. Larger key sizes are more secure but they will require more CPU resources.
Create a new certificate authority to generate certificates for the OpenVPN server. After creating the certificate authority a server certificate must be issued for OpenVPN.
Again you will need to select a key size that meets your security needs and CPU resources. The default certificate lifetime is days 10 years. For higher security environments you should consider reducing the certificate lifetime. For home users the default lifetime is fine. In the general settings you will need to select the interface OpenVPN will listen for connection on. In most cases this will be the external facing interface WAN which is connected to the internet.
TCP will provide higher reliability but can be slower since there is more protocol overhead. The cryptographic settings can all be left on default, advanced users may want to tweak these settings as needed for their specific security needs. The cryptographic settings can be left on their defaults or adjusted if needed. The two most important settings in the tunnel settings section are the tunnel network and the local network.
The tunnel network should be a new network that does not currently exist on the network or the pfSense firewall routing table. When clients connect to the VPN they will receive an address in this network.Netfilter is a framework provided by the Linux kernel that allows various networking -related operations to be implemented in the form of customized handlers.
Netfilter offers various functions and operations for packet filteringnetwork address translationand port translationwhich provide the functionality required for directing packets through a network and prohibiting packets from reaching sensitive locations within a network. Netfilter represents a set of hooks inside the Linux kernel, allowing specific kernel modules to register callback functions with the kernel's networking stack.
Those functions, usually applied to the traffic in the form of filtering and modification rules, are called for every packet that traverses the respective hook within the networking stack. As the project grew, he founded the Netfilter Core Team or simply coreteam in In August Harald Welte became chairman of the coreteam. In Aprilfollowing a crack-down by the project on those distributing the project's software embedded in routers without complying with the GPL, a German court granted Welte an historic injunction against Sitecom Germany, which refused to follow the GPL's terms see GPL-related disputes.
In September Patrick McHardy, who led development for past years, was elected as new chairman of the coreteam. Prior to iptables, the predominant software packages for creating Linux firewalls were ipchains in Linux kernel 2. Both ipchains and ipfwadm alter the networking code so they can manipulate packets, as Linux kernel lacked a general packets control framework until the introduction of Netfilter.
Whereas ipchains and ipfwadm combine packet filtering and NAT particularly three specific kinds of NATcalled masqueradingport forwardingand redirectionNetfilter separates packet operations into multiple parts, described below.
Each connects to the Netfilter hooks at different points to access packets. The connection tracking and NAT subsystems are more general and more powerful than the rudimentary versions within ipchains and ipfwadm. In IPv4 and IPv6 flow offload infrastructure was added, allowing a speedup of software flow table forwarding and hardware offload support.
They provide a table-based system for defining firewall rules that can filter or transform packets. The tables can be administered through the user-space tools iptablesip6tablesarptablesand ebtables. Notice that although both the kernel modules and userspace utilities have similar names, each of them is a different entity with different functionality.pfSense PPPoE WAN Connection Setup and Configuration
Each table is actually its own hook, and each table was introduced to serve a specific purpose. As far as Netfilter is concerned, it runs a particular table in a specific order with respect to other tables. Any table can call itself and it also can execute its own rules, which enables possibilities for additional processing and iteration.
Rules are organized into chains, or in other words, "chains of rules". These chain titles help describe the origin in the Netfilter stack. Netfilter modules not organized into tables see below are capable of checking for the origin to select their mode of operation.
The operations implemented by this virtual machine are intentionally made basic: it can get data from the packet itself, have a look at the associated metadata inbound interface, for exampleand manage connection tracking data.
Arithmetic, bitwise and comparison operators can be used for making decisions based on that data. The virtual machine is also capable of manipulating sets of data typically IP addressesallowing multiple comparison operations to be replaced with a single set lookup. This is in contrast to the legacy Xtables iptables, etc. This is necessary for the in-kernel connection tracking and NAT helper modules which are a form of "mini- ALGs " that only work reliably on entire packets, not necessarily on fragments.
One of the important features built on top of the Netfilter framework is connection tracking. NAT relies on this information to translate all related packets in the same way, and iptables can use this information to act as a stateful firewall. Part of the reason for this is that when merely forwarding packets, i.I published this guide several years ago to expose my thinking and configuration to the scrutiny of networking experts and benefit less experienced users with an easy to follow but comprehensive guide.
I would like to thank all those who contacted me with questions or feedback that contributed to making this guide what it is today.
With an earlier release of pfSense I revised my guide towards becoming a foundational piece in a series of guides aimed at helping users create a SOHO system capable of self-hosting numerous services and supporting migration away from cloud providers to take ownership of their own data. To learn more about the changes included with pfSense 2. The particular gateway is selected depending on the specific services needs and risk profile.
Used primarily by visitors who require internet access but also acts as a backup in case AirVPN goes down for any reason. Firewall prevents access to all local resources including user devices, file servers and core infrastructure. Management network Used for native hardware access to devices such as wifi access points as well as interfaces intended to be utilised only by an admin user, for example, IPMI management consoles, NUT, SNMP monitoring interfaces and headless servers. Security cameras Subnet which various security cameras are connected to.
This subnet is heavily firewalled to prevent anyone from attempting to gain access to my home network via compromising an external cable or camera. A Windows Server VM runs my NVR software and resides in the same VLAN and subnet as the cameras themselves ensuring that the camera traffic is primarily handled by my switch rather than adding avoidable load to pfSense. Internet of Things IoT A subnet that untrusted home automation devices such as smart plugs and various sensors connect to with severely limited access to primary subnets.
The cost of the conversion was free if done as part of an upgrade to a mbps service or faster. A VLAN capable switch is required to provide support for virtual subnets and also provides additional ports for multiple Wi-Fi access points enabling whole home coverage.
Although it is possible to build a pfSense router from pretty much any old hardware, I recommend using something relatively modern to reduce power consumption and with AES-NI to enable hardware acceleration of the OpenVPN encryption we will use. Intel network interfaces are the preferred solution although I have had good results with Chelsio too. I use of a pair of mirrored hard disks to provide redundancy in the event of a hardware failure. A managed switch is required to provide support for the VLANs.
The following are suitable options and many are available on Ebay cheaply. Look for They are beginning to learn that by working with microinfluencers in their niche they can widen the outreach of their content.
As long as they fine tune their target audience and select their influencers well, B2B firms regularly use influencer marketing to attract more visitors to their websites and convert these to increased sales. In some ways, B2B businesses find influencer meeting to be a new form of networking - just this time they do not get to stand around a bar, telling their stories to anyone who will listen.
One change that may happen in 2017 is there being an increase in influencer-created content. Brands may not have as much control over such content as they do with their own posts, but they are beginning to recognize that influencers know their audience best, and have gained their reputations with these audiences for a good reason. As with much in business, many firms now realize that is often best to stand back from micromanaging and let the experts get on with what you are paying them to do.
One area that has held the rise of influencer marketing back has been the fuzziness of its metrics. There is no black and white clear cut way to measure the success of an influencer marketing campaign.
There is a push for there to be more reliability and consistency in the reporting of results. It is likely that the parties will move away from using traditional measures and focus their reporting on the engagement of content. In one sense celebrities had an advantage over other influencers - nobody truly believed that celebrities were promoting a product out of the goodness of their heart, and thus nobody expected celebrities to be totally authentic.
Niche micro-influencers, on the other hand, have gained their following because of their authenticity. If they try to push a message that clashes with the way their audience thinks, they are doing so at their peril. A food blogger, who normally promotes the vegan lifestyle, would not match well with a brand like McDonald's, who today dinamalar aanmiga malar renowned for their meat-based burgers.
Brands realize this, and 2017 will see more care taken as they try to build up suitable relationships. It also means that influencers who keep their special relationship with their audience untainted are likely to be seen as premium influencers who will be able, in turn, to charge premium rates and handpick the brands that they want to work with.
Social media is truly mobile nowadays. There are now more mobile internet connections than there are desktop ones, and indeed Google has already announced that their mobile search index will take priority over their desktop one at some stage this year.
In some cases, store displays change to match the consumers in their proximity. These messages will probably demonstrations to the consumer on how the products directly in front of them can provide value to them. Brands will most likely only trial this in 2017, but it will become more ubiquitous as time goes on.
Until now, influencer marketing has always seemed to be a niche, almost experimental, form of marketing.
However, it has continually grown in importance over the last five years.
How to Set up Remote VPN Access Using pfSense and OpenVPN
We see no reason why that trend should suddenly reverse now. We are still clearly on the upwards rising stage of the influencer marketing life curve, with no sign of it peaking in the foreseeable future.
Each year Generations Y and Z age, increase their power and building their incomes.