I explain complex systems, teach the people who operate them, and help organisations reason through consequential technology decisions.
São Paulo · Portuguese and English · work delivered globally
What I do now
Build ronutzThis site: tools that compute rather than guess, articles read from the vendors' own pages, and a record of the industry, all built in the open.
TeachOfficial instructor-led training on the four platforms, virtual and on site, in any time zone.Official courses on F5, Fortinet, Extreme Networks and Netskope. How the courses are taught →
AdviseExecutive-level technical advisory for the decisions that carry business or mission consequences.What the advisory covers →
SpeakTalks and facilitated sessions on networking, security and the craft of making complex things make sense.
Bagaimana ia bermula
Sebelum kerjaya formal, ada rasa ingin tahu. Pada awal 1990-an saya mengimport dan memasang komputer, mengendalikan dan menggunakan BBS, dan bekerja dengan DOS, Unix, Linux, Netware, Ethernet awal, X.25 dan internet melalui modem. Menjelang 1995, kerja praktikal ini menjadi peranan formal pertama: membina sistem pertukaran data elektronik. Benang yang menghubungkan dari ketika itu hingga kini adalah sama: mengambil sesuatu yang benar-benar rumit dan membuatnya berfungsi, kemudian menjadikannya jelas untuk orang lain.
Why ronutz exists
The tools I wanted while teaching did not exist in a form I could trust: calculators that compute instead of guessing, explanations that cite the vendor's own page, and a record of the industry I lived through that someone else can check. So I built them, in the open, from documentation read live, with nothing a reader types leaving the browser in the catalogue's tools; the two red room lookups that do query a registry say so before they ask, and ask only on the reader's word. The site began as the classroom's companion and grew into a workbench, a knowledge base and a record of the industry; it is free because the knowledge in it was never mine alone.
How I work
Five principles hold across the site and the teaching alike:
Can't write up an endorsement for one company, since I worked w/ him in 3 different companies.
The simple endorsement is the fact that I recommended him for two out of the three places I worked w/ him.
There are few people in the networking industry that not only understand networking technologies, but actually "feel them", Rodolfo is one of these few blessed people.
Luiz EduardoCTO, Security at HPE Aruba NetworkingLinkedIn recommendation · July 22, 2004
Kerjaya saya bermula di pihak vendor dan pelaksanaan pada 1996 dan kekal di situ selama dua dekad sebelum saya menumpukan sepenuhnya kepada latihan. Pengalaman pelaksanaan itulah sebabnya latihan saya tepat pada sasaran: saya telah membina, merosakkan dan membaiki sistem ini dalam pengeluaran.
1996 – 2000
Cabletron Systems · São PauloJurutera rangkaian dan jurulatih yang diperakui. Rangkaian bukan Ethernet dan Ethernet, rangkaian kampus, penghalaan IP.
2000 – 2002
Riverstone Networks · Santa Clara, CaliforniaJurutera sokongan produk dan penyelaras pangkalan pengetahuan di California. Gigabit Ethernet, rangkaian metropolitan, penghalaan IP, BGP. Peningkatan tahap ketiga, penghasilan semula senario pelanggan dan ujian regresi.
2003 – 2004
Cisco Systems · BrasíliaJurutera rangkaian perunding, titik hubungan tunggal untuk pelanggan utama seperti SERPRO dan Correios. Mengurus peningkatan dan kepuasan pelanggan.
2004 – 2005
IronPort Systems · São PauloChannel development and pre-sales technical consulting for IronPort's C-Series e-mail security appliances: late 2004 with IronPort's own São Paulo operation, then through 2005 with a Cisco and IronPort reseller, from RFPs and installation to customer support. IronPort was acquired by Cisco in 2007.
2005 – 2007
Enterasys Networks · São PauloJurutera rangkaian dan jurulatih. Rangkaian perusahaan, penghalaan IP, kawalan capaian pengguna dan NAC, IDS dan IPS.
2009 – 2010
Juniper Networks · São PauloJurutera sokongan saluran dan jurulatih untuk suis dan tembok api perusahaan. Sokongan jualan teknikal dan latihan operasi untuk Junos-SRX.
2011 – 2014
Implementation · via CYLK, TDec and direct engagementsDeploying and integrating security and network platforms for end customers, mostly under contracts held by resellers and occasionally direct. Juniper SSG, SRX, EX and Secure Access - the line that became MAG and then Pulse Secure - alongside Cisco ASA, Palo Alto Networks next-generation firewalls, and Extreme Networks Summit and BlackDiamond switches.
2015 – 2019
F5 Networks · Westcon / TD SYNNEX, Network1 / ScanSourceKejuruteraan jualan dan prajualan berfokuskan saluran untuk F5, dengan sokongan teknikal, penyampaian bukti konsep dan latihan rakan kongsi melalui pengedaran.
2020 – 2022
Pre-sales and consulting · via CYLKSolutions consulting and pre-sales through CYLK, the São Paulo security integrator, while full-time instruction with its sister company InLearn began: F5 application delivery and security, Palo Alto Networks firewalls, Fortinet, Tenable vulnerability management, CyberArk privileged access and Corvil network analytics, as proofs of concept, designs and customer training. All six hold a mark here, and each has its chapter in the career record.
2020 – sekarang
Full-time instruction · Red Education from 2021 (full-time September 2023)Jurulatih latihan yang diberi kuasa, menyampaikan kursus rasmi yang diperakui untuk F5, Fortinet, Extreme Networks dan Netskope kepada organisasi di seluruh dunia.Currently teaching:
Preparing to teach:
The History
Tiga era, satu benang yang menghubungkan: mengambil sesuatu yang benar-benar rumit, membuatnya berfungsi, kemudian menjadikannya jelas untuk orang lain.
Every claim on this page has a place where it can be checked: the career chapters, the credentials with their issuing bodies and dates, the endorsements quoted verbatim, the course catalogue, the writing, the earlier sites, and how this site itself is built.
