How to Locate Open Ports in Linux

Reading Time: 9 minutes
openports

What is a Port? 

First, let’s define what a port is. According to the IEFT, a port is: 

A logical entity for Internet communication. Ports serve two main purposes:
1. They provide a demultiplexing identifier to separate transport sessions between the same pair of endpoints
2. They may also identify the application protocol and associated service to which processes connect.

Wikipedia.com

In plain English, this simply means that a port is an endpoint through which data flows back and forth between two computers over a network. A computer has 65535 ports available to share information. These port numbers are based on a 16-bit number, which is where we derive the total number of available ports (0 to 65535).

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Using Telepresence to Improve Microservice Development

Reading Time: 4 minutes

What is Telepresence?

Initially developed by Datawire, Telepresence is a new open-source tool supported by the CNCF (Cloud Native Computing Foundation). It allows developers to run local software while connected to a remote Kubernetes cluster. The application uses a two-way network proxy to simulate TCP connections, environmental variables, and other volumes of services as local processes. This link allows for remote work to be accomplished while seemingly local to the cluster via the proxied connection. 

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BlueScale Digital: A Customer FAQ

Reading Time: 3 minutes

Today, Liquid Web proudly announced an acquisition of multiple client assets from BlueScale Digital, and we could not be happier to welcome them to the Liquid Web family! For more than 20 years, Liquid Web has been a leader in serving web professionals with highly performant services and exceptional support. This purchase includes multiple VPS, Dedicated, and Colocation clients from the following brands:

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How to Install an SSL on a Core/Unmanaged Ubuntu Server

Reading Time: 8 minutes

Why do I Need to Install or Reinstall My SSL Certificate?

According to Globalsign;

The Certificate Authority (CA) industry was alerted of compliance implications related to the inclusion of a specific extension (OCSP-signing extended key usage) in CA certificates which has, under certain conditions, unintended compliance and security implications. A number of GlobalSign Issuing CAs have been impacted by this issue. While no key compromise or security incident has taken place, we will be revoking these Issuing CA’s as part of our remediation plan in accordance with the CA/B Forum Baseline Requirements and the GlobalSign CPS. Revoked intermediate certificates can cause errors in the validation of certificates signed by these Intermediate Certificates.

Globalsign.com
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How to Install an SSL on a Core/Unmanaged CentOS Server

Reading Time: 7 minutes

Why do I Need to Install or Reinstall My SSL Certificate?

According to Globalsign

The Certificate Authority (CA) industry was alerted of compliance implications related to the inclusion of a specific extension (OCSP-signing extended key usage) in CA certificates which has, under certain conditions, unintended compliance and security implications. A number of GlobalSign Issuing CAs have been impacted by this issue. While no key compromise or security incident has taken place, we will be revoking these Issuing CA’s as part of our remediation plan in accordance with the CA/B Forum Baseline Requirements and the GlobalSign CPS. Revoked intermediate certificates can cause errors in the validation of certificates signed by these Intermediate Certificates.

GlobalSign.com
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CloudLinux Pricing Change

Reading Time: 2 minutes

CloudLinux Pricing Increase

Liquid Web was recently informed that the licensing cost for CloudLinux will be increasing at the beginning of the new year and will take effect on January 1st, 2021. All CloudLinux license types (both standalone and those bundled with cPanel) will increase by $2.00 per month with no variance on license type.

We understand that price increases are never welcome. Although Liquid Web tries to minimize the impact of any cost increase to our clients whenever possible, the CloudLinux licensing fee increase is a pass-through expense and, unfortunately, not something we have control over. Liquid Web appreciates your continued commitment and support through this process. We will continue to keep our clients updated as additional information becomes available.

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How to Share Encrypted Information

Reading Time: 6 minutes

This article will discuss the methods to send information securely over email using GPG/PGP as the main encryption tool. The difference between PGP and GPG is mainly that PGP is a proprietary solution controlled by Symantec, and GPG is the open-source standard that is defined by RFC 4880. Functionally, each format is virtually identical due to GPG being the offspring of the original PGP standard. Because there are numerous email clients, specific GPG settings will vary. For this tutorial, we will use Gmail and Thunderbird as examples. 

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