Recent Posts

Devnet Linux

How-to Install SSH Server on Linux 

By JMCristobal
January 11, 2023
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.- ...
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CCNA

Configure serial interface with encapsulation PPP and PAP authentication

By JMCristobal
November 16, 2022
PPP is a standard protocol used to send data over synchronous serial links. PPP also provides a Link Control Protocol (LCP) for negotiating ...
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CCNA

Configure serial interface with encapsulation PPP and CHAP authentication

By JMCristobal
November 9, 2022
PPP is a standard protocol used to send data over synchronous serial links. PPP also provides a Link Control Protocol (LCP) for negotiating ...
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CCNA

Configure serial interface with encapsulation HDLC

By JMCristobal
October 12, 2022
Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for sending data over synchronous serial links. Cisco HDLC is the default ...
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CCNA Networking Fundamentals

What is a network and its components?

By JMCristobal
September 28, 2022
A computer network is a group of computers (PCs) or similar devices connected to access and share network resources, such as files, storage ...
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CCNA Enterprise Infrastructure

Autonomous System Numbers – BGP

By JMCristobal
September 14, 2022
There are two types of BGP Autonomous system numbers: Private and Public. Various routing protocols use Autonomous System (AS) Numbers. IANA allocates AS ...
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Network Lab

Install EVE-NG on VMware ESXi

By JMCristobal
September 7, 2022
EVE-NG platform allows to create virtual proof of concepts, solutions and training environments. EVE-NG is the first clientless multivendor network emulation software that ...
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Security

Upgrade ASA an Active/Standby Failover Pair Using the CLI

By JMCristobal
August 20, 2022
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 ...
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