To install a CA on a Linux server, install the following packages:
# aptitude install -y openssl ssl-cert
Continue reading “How to install and configure CA (PKI) server on Ubuntu Linux server”
How to install the perfect Ubuntu 20.04 LTS server on Raspberry Pi
To start the installation, download the Raspberry Pi Imager from the official Raspberry Pi website. Insert the SD card (min. 8GB) and select Ubuntu Server 20.04 LTS from the list of the available operating systems. Once the write and verify is complete, insert the SD card in the raspberry pi, connect the HDMI, network cable, and power source.
Continue reading “How to install the perfect Ubuntu 20.04 LTS server on Raspberry Pi”
How to add RTC DS3231 to Raspberry Pi
After you have connected DS3231 to your Raspberry Pi, edit the /boot/config.txt file and add the following lines:
How to install Microsoft Subsystem for Linux and Kali Linux that runs on Microsoft Windows 10
Microsoft has made a great effort to allow Linux and native Linux apps to run on Windows 10. Enabling Subsystem for Linux will allow you to run Linux OS and Linux native apps on top of Windows 10. For more technical details about access to Windows kernel to run Linux and/or Linux native apps, please consult Google.
How to install DuckDNS
DuckDNS is perfect free dynamic DNS service that does not require manually updating your up tp 5 free dynamic DNS domain names. It is easy to setup the shell script to do this for you via crontab. Continue reading “How to install DuckDNS”
How to install Let’s Encrypt with Apache on Ubuntu
In one of the previous articles, I have explained how to harden SSL configuration in Apache and how to add Let’s Encrypt Everything SSL certificate to Kerio Mail server. Now I will explain how to install a client that will help you to automatically renew your SSL certificate(s). Continue reading “How to install Let’s Encrypt with Apache on Ubuntu”
How to harden your SSL configuration on Apache server
I’ve run into an excellent online tool for testing SSL configuration of a web server, Qualy SSL Labs. To begin with, my overall score was D, which means that web server was either misconfigured or that configuration was weak. Reading about all the things they’ve mentioned on their site, one should think that it is safer to run a web server without an SSL certificate than with one. Continue reading “How to harden your SSL configuration on Apache server”
How to block ads with local DNS server
Before you proceed with this tutorial, there are few prerequisites you need to fulfil. First, you either local server or server on the Internet that you (can) use as your own DNS server, second, you need skills to install and configure Linux based DNS server – Bind, third, you need a second IP address if you already have web server running on your primary IP address. I will focus on Raspberry Pi running Ubuntu 16.04 LTS (Snappy Ubuntu Core). Continue reading “How to block ads with local DNS server”
How to automate backup of your files to your Google drive from Ubuntu 14.04 LTS
None of the available Google drive clients (CLI) offers automated sync of your files to your Google drive. In our previous article, we have shown you how to install and configure your Google drive client, gdrive. Now we will take you one step further, and show you how to make a simple shell script to sync your files to your Google drive. Continue reading “How to automate backup of your files to your Google drive from Ubuntu 14.04 LTS”
How to enable cron loggin in Ubuntu 14.04 LTS
Per default, cron logging in Ubuntu 14.04 LTS is rather limited. Standard logging in syslog does not offer any details if root owned cron jobs are actually running and if not, why. Here you will see how to enable cron logging which will help you in further troubleshooting. Continue reading “How to enable cron loggin in Ubuntu 14.04 LTS”