To build a routed wifi network using Raspberry Pi we will use hostapd and dnsmasq software. In this example, our home network is 22.214.171.124/24 and the new network we will use for wifi is 126.96.36.199/24. Please note that throughput on the Raspberry Pi wifi interface is limited and you should not expect speeds higher than 25-30Mbps.
To configure SSL on Webmin, you will need your Webmin server SSL certificate (pem or crt), private key (key file) and root CA or intermediate CA certificate file. Once you have these, copy your root CA certificate file to /etc/webmin/ folder:
To install a CA on a Linux server, install the following packages:
# aptitude install -y openssl ssl-cert
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.
After you have connected DS3231 to your Raspberry Pi, edit the /boot/config.txt file and add the following lines:
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.
Here I will show you how to build a simple RAID configuration using 2 hard disks. We will be creating a mirror RAID configuration. You are most welcome to use your own RAID level since the procedure is the same. Before we proceed, please ensure that your disks are visible in the OS using fdisk command. Continue reading “Creating RAID in Linux”
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”
To reset the root password on the VCSA 6.x we need to boot the system into single user mode. Since v6, VMware requires users to enter the root password to modify the GRUB boot menu options. Here you can find instructions on how to remove GRUB password. Continue reading “How to reset the root password on VCSA 6.x”
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”