Author: Martin Pramatarov

Whitelisting vs Blacklisting, preventing or reacting

Martin Pramatarov / / Protection

There are different security methods out there, but when it comes to data filtering, there are two widely-used ones. You can use either whitelist (allow, give a permit) or blacklist (block, put in the list of forbidden). There is a big debate in the IT community which is better. Whitelisting vs Blacklisting.

Many IT specialists say that whitelisting leads to better protection, but it has too many limitations. It takes too much time and needs continuous changes. This generates more expenses. On the other side is the blacklisting. You simply put all the problematic devices in a blacklist and they no longer can engage with your network. But can you block all of them?

Let’s check them out and we later you can make your choice on the “Whitelisting vs Blacklisting” debate.

Whitelisting vs Blacklisting

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What is DHCP? How does the DHCP server work?

Martin Pramatarov / / Servers

The DHCP server has changed the lives of all administrator forever. It has given them the commodity of automatic IP assignment. After the introduction of DHCP, there was no need for some IT specialists to spend countless hours providing IPs for every device connected to the network device. But how exactly does DHCP work? Let’s find out!

DHCP server

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Domain registration. How to choose a domain name?

Martin Pramatarov / / Domain names

If you want to make a website for your business, the first obstacle that you face, even before the actual creation of the site is the domain registration. How can you choose the right domain? You want something that represents your company appropriately. It is not easy to choose between so many combinations of top level domains and domain names. Just make a short search, and you will see plenty of possibilities.

Domain registration

Why is it so important?

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Speed up WordPress with CDN

Martin Pramatarov / / CDN

WordPress has taken the internet by storm. It is the most commonly used CMS (content management system) out there. Plenty of people are using it. With this popularity, the competition is fears. There are a lot of speed up WordPress optimizations that you can do from within, like using a barebone theme, optimizing the content or using caching plugins but all of that request that you have SEO knowledge. You can speed up your WordPress from outside by using CDN (content delivery system).

WordPress

What is CDN?

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Can we use free DNS? Free DNS vs. Premium

Martin Pramatarov / / DNS

If you are searching already free DNS, you know what DNS is and for what it serves. The DNS will resolve your domain name. If you have more DNS servers and they are spread around the world, this process will be faster, and it will reduce the load. It will even add an extra level of protection, imagine if one of the servers is down, the users can still find your domain using the rest of the DNS servers.

Free DNS

Free DNS

Different companies offer such a Free DNS plan like us from ClouDNS.net. With this plan, you can manage your DNS. It has many of the features of a professional DNS plan. You can use up to 4 DNS servers and 3 DNS zones. You will have three mail forwards. This plan is popular among people who need Dynamic DNS for their connected devices like CCTV cameras and other security measurements. It is used for personal blogs or parked domains.

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Round Robin Load Balancing. Simple and efficient

Martin Pramatarov / / Load balancing

We have already talked about load balancing. You can read the previous article HERE. Briefly explained, the traffic on the internet is constantly increasing. There are more devices connected and the data that circuit is more too. In order to manage all of this load, you need a load balancer that distributes it among the servers to reduce the load. Now we will focus just on one method to do so – Round Robin.

Round Robin

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CDN and SEO, are they connected?

Martin Pramatarov / / CDN

What is CDN (content delivery network)

CDN is a network of servers geographically located in different areas around the world. They serve as a load balancer that redirect the traffic that goes to your website to the closest Point of Presence near you. It is like a shortcut. Now your visitors will not waste time to get to the web host service you use. They will be conveniently redirected to a cached data of your site, that is milliseconds away from them. They will open the pages fast and will have a better experience.

What is SEO?

SEO

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Traceroute command and its options

Martin Pramatarov / / Tools

Traceroute

Many network administrators use the traceroute command daily. It is a convenient tool that you can use under different operation systems – Windows (Tracert), MacOS, Linux (traceroute) and even on mobile (Android and iOS).

You can use traceroute, and see the full route that the packets take to their destination (domain or IP address). Apart from that, you will see the hostnames and IPs of the routers on the way and the latency, the time it takes for each device to receive and resend the data.

You can see which gateway is discarding your data and later you can fix it.

Traceroute

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Why media can’t live without CDN

Martin Pramatarov / / CDN

Do you remember the time when we were reading the news in a printed newspaper and we were going to a video store to rent a VHS? The things have changed a lot ever since. Now you get the daily brief from an online portal and the content rental stores are all in the clouds. CDN is responsible for the global distribution of all that content. It makes it possible that all the viewers get their content in a matter of milliseconds, even if they live far away from the source.

Every media company who wants to be international relies on CDN. Youtube, Amazon, Netflix and many more can’t provide equal service in so many different locations without it. It can deliver quality 4k video without buffering (if the visitors have quality internet too).

CDN

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