Archives by: JMCristobal

JMCristobal

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JMCristobal Posts

Creating a virtual environment with VENV – Python

Devnet Linux
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 ...
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EIGRP Configuration

Uncategorized
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 ...
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RIPv2

Networking Fundamentals
Routing Information Protocol Version 2The first classless routing protocol is the evolution of RIP v1, plus it supports VLSM (Variable Length Subnet Mask).RIPv2 is known as a Vector ...
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Routing Table

Networking Fundamentals
The primary function of a router is to send a packet to its destination network, which is the destination IP address of the packet. The router looks up ...
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Install python in Ubuntu 20.04

Devnet Linux
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 ...
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Basic Git Commands

Devnet Linux
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 ...
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Umbrella and YouTube live streaming issues

Security
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, ...
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Switched Port Analyzer (SPAN and RSPAN)

Enterprise Infrastructure
SPAN (Switched Port Analyzer) is a feature that allows copying traffic from a source port or switch vlan to a destination port. In this article, we will discuss: ...
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Configure AAA Switch Cisco IOS

Enterprise Infrastructure
AAA – Authentication, Authorization, AccountingAuthentication: Who is the user?Authorization: What can the user do?Accounting: What did the user do? Cisco switches use two protocols for communication with AAA ...
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Configuring Port Security in Cisco Switch IOS

Enterprise Infrastructure
This feature controls the number of MAC addresses per port.The maximum number of MAC addresses per port can be configured (default is 1).The MAC addresses can be configured ...
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Configure SNMP on ASA Firewall

Security
SNMPv2 Specify the recipient of an SNMP notification, indicate the interface from which traps are sent, and identify the name and IP address of the NMS or SNMP ...
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Configure Storm Control in Cisco IOS

Enterprise Infrastructure
Storm control is a feature used to remedy broadcast, multicast, and unicast unknown overruns in the LAN network. Thresholds are configured, and action is taken if these thresholds ...
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Configuring SNMP on Cisco IOS

Enterprise Infrastructure
Simple Network Management Protocol (SNMP) Configuring SNMPv2C  The following commands are used to configure SNMPv2C: Switch(config)# snmp-server host host-address [ informs] version 2c community-string Switch(config)# snmp-server community string ...
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Install EVE-NG in Google Cloud Platform

Network Lab
Let’s learn how to install EVE-NG in Google Cloud Platform (GPC). GCloud was currently left support to Ubuntu 16.04 LTS; therefore, our installation is carried out over Ubuntu ...
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Configuring NTP on Cisco IOS

Enterprise Infrastructure
Network Time Protocol (NTP) is used for centralized synchronization of the date and time of devices. It works over UDP port 123.  NTP operation modes: Server: the device ...
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