Introduction Set is an unordered collection of elements with no duplicates. They can only contain immutable objects, therefore sets can’t contain list, dictionaries or another sets. Sets are usually used when someone needs to know whether a particular element is in a collection or not and the order itself does not matter. The good use
Introduction Tuples are very similar to lists in Python, but in contrast to lists they can’t be modified. Once you created the tuple, you can’t modify/delete/append its elements, therefore tuples are said to be immutable. How to create a tuple? Similarly to a list, a tuple contains sequence of values. To create a tuple, we
Introduction This article provides a lot of information about Python lists. We will learn how to create lists, append and delete elements, sort lists and create slices. List List is a collection(array) which contains ordered elements. Each element of a list has its own index. Lists can be modified and therefore are called “mutable” objects.
Introduction In this post we will have a look at several built-in data types in Python, like numbers, strings, lists and others. I will use Ubuntu 18.04 with Python 3.5.2 for demonstration, but you can use any Python 3 interpreter, for example Python IDLE for Windows or MacOS. $ python3 Python 3.5.2 (default, Nov 12
Introduction In this post we will go through the process of CIMC (Cisco Integrated Management Controller) upgrade on a standalone Cisco UCS server. I will be upgrading C220M4 server from 3.0(3a) to 4.0(1d), but instructions apply to any standalone UCS server. Step 1: Download Host Upgrade Utility Go to Cisco Software Download website and download
Introduction In this post we will learn how to install and run Cisco router as a virtual machine. Cisco has a special product called CSR (Cloud Services Router) 1000v for deploying routers as virtual machines. You can use these VMs for testing and learning purposes. Cisco supports all popular cloud and virtualization platforms, but I
Introduction You might be getting this error “A required disk image was missing” while deploying a new virtual machine from CSR 1000v OVA file. You can ignore this error, but the router will not boot after you power it on. I have written below how I managed to deploy CSR 1000v using OVA file and
Introduction In this post we will configure port forwarding on a Fortigate firewall running FortiOS 5.4. What is Port Forwarding? Port forwarding is a feature on the routers/firewalls that allows devices behind the NAT to be accessed by external devices. In other words, if you want anyone on the Internet to access a service (e.g.
Introduction In this post you will learn about curl command in Linux and then have a look at some common curl examples. What is curl? Curl is a command-line utility used for sending and getting data using URLs. curl supports various protocols, including HTTP, HTTPS, FTP, SCP, SFTP, TFTP, LDAP, TELNET, POP3, SMTP and others. It
Introduction In this short post we will update NodeJS to the latest version using npm (Node Package Manager). I will update NodeJS 8.1.0 to NodeJS 10.13 in Ubuntu 18.04. Update NodeJS using NPM If you have NodeJS installed on your computer then you also have NPM, because they come together. NPM (Node Package Manager) is usually