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Upgrade ASA an Active/Standby Failover Pair Using the CLI

By JMCristobal
August 20, 2022
Security
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 – ...
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EIGRP Configuration

By JMCristobal
May 4, 2022
Enterprise Infrastructure
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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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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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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Configure Syslog on Cisco IOS

By JMCristobal
February 11, 2022
Enterprise Infrastructure
Syslog is a standard for logging messages describing important events on network equipment. These events are used for auditing to know what, when, and how the event happened. ...
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Cisco ACI CLI Commands (APIC, Leaf/Spine)

By JMCristobal
October 30, 2021
Data Center
Connect to Leaf from APICbashattach [node-name]ssh user@[node-name] Endpoint, EPG, BD form APIC<show ip interface bridge-domain [name_bd]><show epg [epg-name] [detail]> Ping from Leafiping [-dDFLnqRrv] [-V vrf] [-c count] [-i ...
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Configure DHCP in router cisco

By JMCristobal
October 22, 2021
Enterprise Infrastructure
DHCP (Dynamic Host Configuration Protocol)  The DHCP protocol allows clients to dynamically configure network parameters without the need for a manual configuration process.  Dynamically assigns an IP address to ...
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Configuring OSPFv2 on ASA Firewall

By JMCristobal
October 15, 2021
Security
Create an OSPF routing process: asa-jmcristobal(config)# router ospf process_id Define the IP addresses on which OSPF runs and the area ID for that interface: asa-jmcristobal(config)# network ip_address mask ...
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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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