Cisco

Cisco

Devnet Linux

How-to Install SSH Server on Linux 

1.- Install with apt-get command on Ubuntu: sudo apt-get install openssh-server 1.- Install with dnf command on Fedora: sudo dnf install openssh-server 2.- Enable the ssh service: sudo ...
Read more 0
CCNA

Configure serial interface with encapsulation PPP and PAP authentication

PPP is a standard protocol used to send data over synchronous serial links. PPP also provides a Link Control Protocol (LCP) for negotiating the properties of the link. ...
Read more 0
CCNA

Configure serial interface with encapsulation PPP and CHAP authentication

PPP is a standard protocol used to send data over synchronous serial links. PPP also provides a Link Control Protocol (LCP) for negotiating the properties of the link. ...
Read more 0
CCNA

Configure serial interface with encapsulation HDLC

Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for sending data over synchronous serial links. Cisco HDLC is the default for data encapsulation at Layer ...
Read more 0
CCNA Networking Fundamentals

What is a network and its components?

A computer network is a group of computers (PCs) or similar devices connected to access and share network resources, such as files, storage space, printers, IP telephony, and ...
Read more 0
CCNA Enterprise Infrastructure

Autonomous System Numbers – BGP

There are two types of BGP Autonomous system numbers: Private and Public. Various routing protocols use Autonomous System (AS) Numbers. IANA allocates AS Numbers to Regional Internet Registries ...
Read more 0
Security

Upgrade ASA an Active/Standby Failover Pair Using the CLI

In this tutorial, we will update two ASA firewall 5585-X from CLI. Actual version 9.8.4.20Target version 9.8.4.44 Note: Perform these steps on the active unit Step 1 – ...
Read more 0
Security

Configuring an SFTP repository in ISE

Cisco ISE allows you to create and delete repositories through the administrator portal. You can create the following types of repositories: Disk, FTP, SFTP, NFS, CD-ROM, HTTP and ...
Read more 0
Devnet Linux

Install Docker in Ubuntu

In this article we will learn how to install Docker on an Ubuntu 20.04 operating system. 1.-Installing the initial requirements with the following commands. sudo apt-get update sudo ...
Read more 0
CCNA Networking Fundamentals

Introduction to networks

Today’s networks have changed unimaginably; in just a few years, their limitations have evolved on a large scale. The first data networks could only exchange character-based information. Today ...
Read more 0
Devnet Linux

Creating a virtual environment with VENV – Python

This article teaches how to set up a python virtual environment on a Ubuntu 20.04.An Environment Virtual allows you to manage separate package installations for different projects. They ...
Read more 0
Enterprise Infrastructure

EIGRP Configuration

Enhaced Interior Gateway Routing Protocol – EIGRP Its internal administrative distance is 90, and the external one is 170. So that a router configured with EIGRP can exchange ...
Read more 0
Devnet Linux

Install python in Ubuntu 20.04

Python 3 is installed by default on the Ubuntu 20.04 Linux distribution. To ensure that our versions are up to date, we will update and upgrade the system ...
Read more 0
Devnet Linux

Basic Git Commands

We show you the most common Git commands in this Cheat Sheet. It is difficult to memorize all the important Git commands, so save this article for future ...
Read more 0
Security

Umbrella and YouTube live streaming issues

A few days ago, we decided to enable Enforce SafeSearch in some Umbrella policies. However, we received several reports with problems accessing YouTube live streaming. After the change, ...
Read more 0
en_US