David Alicea
@dayvee.bsky.social
Solutions Engineer @ Cisco. Lover of coffee, gaming, and traveling. CCNP Security & Enterprise.
As a Cisco SE, I help build a bridge between Cisco and our clients.
https://youtube.com/@zerosandwon?feature=shared
As a Cisco SE, I help build a bridge between Cisco and our clients.
https://youtube.com/@zerosandwon?feature=shared
Pinned
David Alicea
@dayvee.bsky.social
· Oct 15
Cisco Secure Firewall - An Intro
YouTube video by David Alicea
youtu.be
Firewalls have evolved over the years, but it has felt like a generation since the industry started using "Next Gen FW".
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
It’s Monday, so may your emails be way lighter than your coffee.
November 3, 2025 at 3:12 PM
It’s Monday, so may your emails be way lighter than your coffee.
Reposted by David Alicea
New episode is here.
Ep 164: Oak Cliff Swipers
This one is guaranteed to make your head shake in disbelief.
darknetdiaries.com/episode/164
Ep 164: Oak Cliff Swipers
This one is guaranteed to make your head shake in disbelief.
darknetdiaries.com/episode/164
October 7, 2025 at 2:13 PM
New episode is here.
Ep 164: Oak Cliff Swipers
This one is guaranteed to make your head shake in disbelief.
darknetdiaries.com/episode/164
Ep 164: Oak Cliff Swipers
This one is guaranteed to make your head shake in disbelief.
darknetdiaries.com/episode/164
Firewalls have evolved over the years, but it has felt like a generation since the industry started using "Next Gen FW".
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
Cisco Secure Firewall - An Intro
YouTube video by David Alicea
youtu.be
October 15, 2025 at 11:13 PM
Firewalls have evolved over the years, but it has felt like a generation since the industry started using "Next Gen FW".
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
Hybrid Mesh Firewall is what orgs are looking at now. Let’s focus on one piece of it, which is the firewall.
youtu.be/-jtenKwmYG8?...
No laptop to open today.
September 22, 2025 at 5:49 PM
No laptop to open today.
I setup Cisco TrustSec in the lab using Identity Services Engine 3.4. With TrustSec, the focus is on segmenting with identity and not the IP address.
youtu.be/9WZhE7BUjA0?...
youtu.be/9WZhE7BUjA0?...
Cisco ISE - The Segmentation Journey Part 3
YouTube video by David Alicea
youtu.be
September 11, 2025 at 10:38 PM
I setup Cisco TrustSec in the lab using Identity Services Engine 3.4. With TrustSec, the focus is on segmenting with identity and not the IP address.
youtu.be/9WZhE7BUjA0?...
youtu.be/9WZhE7BUjA0?...
For those running Cisco Catalyst 9800 series wireless controllers, you can run your config through the Wireless Config Analyzer for some best practices.
youtu.be/Mgz85huSEwI?...
youtu.be/Mgz85huSEwI?...
Cisco's Wireless Config Analyzer
YouTube video by David Alicea
youtu.be
August 20, 2025 at 10:09 PM
For those running Cisco Catalyst 9800 series wireless controllers, you can run your config through the Wireless Config Analyzer for some best practices.
youtu.be/Mgz85huSEwI?...
youtu.be/Mgz85huSEwI?...
As organizations continue to deploy wireless solutions, they can’t forget about the wired side. Security is still needed on those switch ports and you should know what devices are connected. Cisco ISE can help with the visibility and control for wired devices as well.
youtu.be/GlA_xW1jDdQ?...
youtu.be/GlA_xW1jDdQ?...
Cisco ISE - The Segmentation Journey Part 2
YouTube video by David Alicea
youtu.be
July 22, 2025 at 9:08 PM
As organizations continue to deploy wireless solutions, they can’t forget about the wired side. Security is still needed on those switch ports and you should know what devices are connected. Cisco ISE can help with the visibility and control for wired devices as well.
youtu.be/GlA_xW1jDdQ?...
youtu.be/GlA_xW1jDdQ?...
Some hobbies can be expensive.
July 12, 2025 at 1:05 AM
Some hobbies can be expensive.
The Catalyst 9200L I upgraded in the lab last video, I now make the connection up to the Cisco Meraki Dashboard in order to use the Cloud CLI.
youtu.be/mEEOCP1WkHI?...
youtu.be/mEEOCP1WkHI?...
The Cloud CLI
YouTube video by David Alicea
youtu.be
July 4, 2025 at 4:57 PM
The Catalyst 9200L I upgraded in the lab last video, I now make the connection up to the Cisco Meraki Dashboard in order to use the Cloud CLI.
youtu.be/mEEOCP1WkHI?...
youtu.be/mEEOCP1WkHI?...
Catalyst 9200L switches can be supported in the Meraki Dashboard even while running IOS-XE code. The first thing to do is upgrade to the required code:
youtu.be/AqMNminqSsY?...
youtu.be/AqMNminqSsY?...
Catalyst 9200L Code Upgrade
YouTube video by David Alicea
youtu.be
June 27, 2025 at 2:38 AM
Catalyst 9200L switches can be supported in the Meraki Dashboard even while running IOS-XE code. The first thing to do is upgrade to the required code:
youtu.be/AqMNminqSsY?...
youtu.be/AqMNminqSsY?...
I was messing around with Veo 3. It’s interesting the stuff you can create from text to video. Here a cheesy security video for you :)
youtu.be/AUslKFJaHKA?...
youtu.be/AUslKFJaHKA?...
Veo 3 Security Commercial Test
YouTube video by David Alicea
youtu.be
June 25, 2025 at 6:04 PM
I was messing around with Veo 3. It’s interesting the stuff you can create from text to video. Here a cheesy security video for you :)
youtu.be/AUslKFJaHKA?...
youtu.be/AUslKFJaHKA?...
The sounds of Network Engineering.
June 19, 2025 at 11:26 PM
The sounds of Network Engineering.
Segmentation is not just a check box that you check and you are done. It involves different solutions, layers that you have to take into consideration.
In an effort to make things dynamic and scalable, Cisco Identity Services Engine can help orgs implement TrustSec.
youtu.be/BElQ_95Sg-g?...
In an effort to make things dynamic and scalable, Cisco Identity Services Engine can help orgs implement TrustSec.
youtu.be/BElQ_95Sg-g?...
Cisco ISE - A Segmentation Journey Part 1
YouTube video by David Alicea
youtu.be
June 18, 2025 at 4:16 PM
Segmentation is not just a check box that you check and you are done. It involves different solutions, layers that you have to take into consideration.
In an effort to make things dynamic and scalable, Cisco Identity Services Engine can help orgs implement TrustSec.
youtu.be/BElQ_95Sg-g?...
In an effort to make things dynamic and scalable, Cisco Identity Services Engine can help orgs implement TrustSec.
youtu.be/BElQ_95Sg-g?...
As soon as the pickup notification came…I walked over to my car and drove carefully through the streets following all rules of the road.
June 14, 2025 at 2:14 AM
As soon as the pickup notification came…I walked over to my car and drove carefully through the streets following all rules of the road.
Last weekend I spent some time adding a Cisco Meraki MS130-12X to the lab. It will eventually replace an MS220 that is going End of Support soon.
Join me for another episode of Weekend Maintenance!
youtu.be/5VcuN-Mi6-8?...
Join me for another episode of Weekend Maintenance!
youtu.be/5VcuN-Mi6-8?...
Weekend Maintenance - Episode 02
YouTube video by David Alicea
youtu.be
June 10, 2025 at 4:44 PM
Last weekend I spent some time adding a Cisco Meraki MS130-12X to the lab. It will eventually replace an MS220 that is going End of Support soon.
Join me for another episode of Weekend Maintenance!
youtu.be/5VcuN-Mi6-8?...
Join me for another episode of Weekend Maintenance!
youtu.be/5VcuN-Mi6-8?...
Today’s schedule is cutting the grass because my neighbor cut his first and CCDE studies.
June 7, 2025 at 6:17 PM
Today’s schedule is cutting the grass because my neighbor cut his first and CCDE studies.
Check out this episode of Talk Time - Conversations That Matter. We spend some time talking about everyone’s favorite subject: Artificial Intelligence.
youtu.be/HVTdFHK4WIg?...
youtu.be/HVTdFHK4WIg?...
The Power Of AI To Transform The World
YouTube video by TalkTime - Conversations That Matter
youtu.be
June 4, 2025 at 9:15 PM
Check out this episode of Talk Time - Conversations That Matter. We spend some time talking about everyone’s favorite subject: Artificial Intelligence.
youtu.be/HVTdFHK4WIg?...
youtu.be/HVTdFHK4WIg?...
Reposted by David Alicea
Fake IT support calls hit 20 orgs, end in stolen Salesforce data and extortion, Google warns
Fake IT support calls hit 20 orgs, end in stolen Salesforce data and extortion, Google warns
Victims include hospitality, retail and education sectors
A group of financially motivated cyberscammers who specialize in Scattered-Spider-like fake IT support phone calls managed to trick employees at about 20 organizations into installing a modified version of Salesforce's Data Loader that allows the crims to steal sensitive data.…
dlvr.it
June 4, 2025 at 3:11 PM
Fake IT support calls hit 20 orgs, end in stolen Salesforce data and extortion, Google warns
I spent some time this Saturday doing some maintenance in the home lab. I swapped out a 3802 AP and upgraded code on the wireless controller.
youtu.be/nNuas7EKp3Q?...
youtu.be/nNuas7EKp3Q?...
Weekend Maintenance - Episode 01
YouTube video by David Alicea
youtu.be
June 3, 2025 at 9:04 PM
I spent some time this Saturday doing some maintenance in the home lab. I swapped out a 3802 AP and upgraded code on the wireless controller.
youtu.be/nNuas7EKp3Q?...
youtu.be/nNuas7EKp3Q?...
The weather keeps getting better! I need me some sun ☀️
June 1, 2025 at 4:48 PM
The weather keeps getting better! I need me some sun ☀️
Patching and upgrades are important for a healthy .
This week I move the lab from Cisco ISE 3.3 to 3.4.
youtu.be/w_Ae4t1wEvk?...
This week I move the lab from Cisco ISE 3.3 to 3.4.
youtu.be/w_Ae4t1wEvk?...
Cisco ISE - Patches and Upgrades
YouTube video by David Alicea
youtu.be
May 6, 2025 at 3:16 PM
Patching and upgrades are important for a healthy .
This week I move the lab from Cisco ISE 3.3 to 3.4.
youtu.be/w_Ae4t1wEvk?...
This week I move the lab from Cisco ISE 3.3 to 3.4.
youtu.be/w_Ae4t1wEvk?...
Cisco ISE can be used to control and manage admin access to network devices like your switches and routers. It uses TACACS+ to Authenticate, Authorize, and provide Accounting for the users who are logging into those devices.
youtu.be/Q5JZQCuQaB8?...
youtu.be/Q5JZQCuQaB8?...
Cisco ISE - Device Administration
YouTube video by David Alicea
youtu.be
May 2, 2025 at 6:44 AM
Cisco ISE can be used to control and manage admin access to network devices like your switches and routers. It uses TACACS+ to Authenticate, Authorize, and provide Accounting for the users who are logging into those devices.
youtu.be/Q5JZQCuQaB8?...
youtu.be/Q5JZQCuQaB8?...