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Collaboration Engineer

All things Technology – Posts to save for when you need them

Author: Andres Sarmiento

Hi there, just a bit about myself, I have been in the IT business for the last 10 Years. Started my way up as a Help Desk Technician, studied really hard since then and moved up a bit to a Jr. Network Administrator to a Sr. Network Administrator. Few years later started with this obsession to star working for a IT services company and for the last 3 years I have worked for couple Cisco IT Resellers, and now I work for Cisco as a contractor (Red Badge), for the Advanced Services Team. I have learned from basic network design to high scale network designs, I started on the networking side, with a bit of Security, some Wireless and Data center technologies. However my main focus has always been Voice/UC/Collaboration. I think that these technologies are cool to implement and very challenging from time to time, which makes them very enjoyable. The main idea of this blog is to be able to post useful information that someone like me on the field can use to their advantage, without having to spend too much time trying to figure stuff up.
Written by Andres SarmientoJanuary 23, 2018April 27, 2020

Implement NetFlow IOS-XE with NBAR Discovery

I’m pretty sure that there are many examples out there to create NetFlow configuration and very well documented as well, however, I wanted to give my config a crack and also wanted to share. I’m adding one more bit of information as it is very useful to keep your network on-check, and that is the […]

Written by Andres SarmientoJanuary 22, 2018April 27, 2020

Denial of Service Attack Prevention (IOS)

As part of the CCNP Security 300-206 (SENSS) – I have found interesting topics along the ways and this one catches my attention. So here is a quick high-level overview + some configuration examples on IP TCP Intercept What TCP Intercept is looking to prevent? This feature looks to prevent Denial of Service Attacks, by […]

Written by Andres SarmientoJanuary 22, 2018February 8, 2018

CCNP Security 300-206 (SENSS) – The After Math of the Exam – Useful Links

I finished last year with an incomplete challenge and lots of things in my to-do list. This exam was one of them, so I ended up moving lots of my objectives to 2018 I presented this exam at the beginning of November-17 and failed with few or a lot of incorrect questions. It really took […]

Written by Andres SarmientoDecember 28, 2017May 29, 2018

CUCM – Moving CUCM Publisher – Change IP address

Where do we begin with this one? – Here is your ticket and before you go to the next section of this post, make sure you have a quick answer. The Ticket/Challenge **Trying not to call it a problem! Your client needs to move from a Datacenter to a new location. You need to move […]

Written by Andres SarmientoDecember 27, 2017May 29, 2018

CUCM – Unable to add SFTP Backup Device – Some Linux stuff

Few weeks have gone by and I have not written anything for a while **But I still have lots of Drafts in the works. Job has been a bit busy this time of the year so that’s my excuse and I will stick to it 🙂 If you are a UC and Collaboration engineer, you […]

Written by Andres SarmientoNovember 28, 2017May 29, 2018

MacOS High Sierra Vulnerability – It’s true!

A quick and short post just to advice MAC users to change their root Password as soon as possible The issue A quick excerpt of the newly discovered vulnerability – Credit KrebsonSecurity – MacOS High Sierra Users: Change Root Password Now A newly-discovered flaw in macOS High Sierra — Apple’s latest iteration of its operating […]

Written by Andres SarmientoNovember 15, 2017May 29, 2018

Overview of Cisco Prime Infrastructure 3.1.0

Ok, I’m going to give this one a try, and hope all readers help me keep myself honest on this one. Initially, the title of this Post was based on CCNP Security and Cisco Prime Infrastructure Security Use Cases. So I have been looking for some Security use cases with Cisco Prime Infrastructure, and I […]

Written by Andres SarmientoNovember 14, 2017May 29, 2018

Bundle T1’s for MPLS and Internet Connectivity MFR Interface Configuration Example

Picture this, you have been given a provisional WAN circuit using a T1, or multiple, in this particular use case; The provider is connecting you to its MPLS network, which provides you with an MPLS WAN address, an Internet WAN address. This is simple for many out there, but it was not for me until […]

Written by Andres SarmientoNovember 9, 2017April 27, 2020

VIDEO: CCNP Security 300-206 (SENSS) – Installing Cisco ACS on VMWware

A quick video on how to install Cisco ACS Version 5.8 Here are the VM Requirements: Minimum Requirements CPU 2 CPUs (dual CPU, Xeon, Core2 Duo or 2 single CPUs) 2 GHz CPU speed Memory 4 GB RAM Hard Disk A minimum of 60 GB is required. Maximum storage is up to 750 GB. Note: […]

Written by Andres SarmientoNovember 8, 2017May 29, 2018

VIDEO: CCNP Security 300-206 (SENSS) – Building a quick Virtual Lab

To all visual learners, like me, and to the ones that need to do the stuff in order to learn. Also for the love of virtualization, I thought it will be a good idea to include videos and demonstrations on how things could be done. The Video The Content This is just going over the […]

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