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JMCristobal

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JMCristobal

JMCristobal Posts

Install python in Ubuntu 20.04

By JMCristobal
April 20, 2022
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

By JMCristobal
March 30, 2022
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

By JMCristobal
March 23, 2022
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)

By JMCristobal
March 9, 2022
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

By JMCristobal
March 9, 2022
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

By JMCristobal
March 9, 2022
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

By JMCristobal
March 9, 2022
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

By JMCristobal
March 9, 2022
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

By JMCristobal
March 9, 2022
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

By JMCristobal
March 8, 2022
Network Lab
Let’s learn how to install EVE-NG in Google Cloud Platform (GPC). EVE – The Emulated Virtual Environment For Network, Security and DevOps Professionals Install EVE Community on GPC. ...
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Configuring NTP on Cisco IOS

By JMCristobal
February 23, 2022
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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Upgrade FMCs in a High Availability

By JMCristobal
February 17, 2022
Security
Equipment to be used: FMC 2600 with version 6.4.0.10 The objective is to upgrade the FMC in HA to version 6.6.4 Before you begin, I recommend that you ...
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Install Visual Studio Code on Ubuntu 20.04

By JMCristobal
February 17, 2022
Devnet Linux
Visual Studio Code is a source code editor developed by Microsoft. For the installation, we will use a Snap package. Snaps are application packages that are easy to ...
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Installing Ubuntu on VMWare Fusion

By JMCristobal
February 16, 2022
Devnet Linux
Let’s see a simple guide to creating a virtual machine with Ubuntu operating system in VMware Fusion. Open the program VMware Fusion File > New Click on Continue ...
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Cisco IOS commands

By JMCristobal
February 15, 2022
Enterprise Infrastructure
Commands Used to Monitor and Manipulate the CAM Table TaskDisplay all MAC addresses learned on a specific interfaceSwitch# show mac address-table dynamic interface type number Display the current ...
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About this Website

This website is free and educational. Contains my thoughts and ideas, which may not represent the thoughts of the various technologies mentioned here. All product names, logos, and illustrations are copyright/trademarks of their respective owners.
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