Mid-2018 me and my friend (back then dearest colleague Andres Villalobos) ran into an issue with Linux teamd drivers and Cisco Nexus 9000 switches when using LACP vPC (virtual port…
VMware workstation nested virtualization and WSL2 disaster
Got caught into the WSL2 hype and ran into the surprise of errors such as “Virtualized Intel VT-x/EPT is not supported on this platform”? me too (…) welcome to VMware’s…
Changing a Nexus 9K switch from ACI to NX-OS mode without an APIC controller
Cisco ACI -just like any other beta platform- had an infancy period, which for the Nexus 9K line meant to have a series of licensing schemas, one of those being…
How to make Putty the default telnet application in Windows 10
Trusty yet insecure, it’s the 21st century and long gone are the days of telnet but, is there any need to keep using telnet to access your network devices nowadays?…
How to upgrade Cisco’s UCS CIMC firmware
The Cisco Integrated Management Controller is the out-of-band hardware controller included with the Cisco UCS servers and if you have read my previous blog post about the CIMC you already assigned it with…
How to upgrade Cisco’s WLC AireOS software
Quick n’ easy and just to complement my last post on updating a WLC’s FUS, here’s a guide on how to upgrade Cisco’s WLC AireOS software. Do we still call…
How and why to apply Cisco’s WLC Field Software Upgrade (FUS)
Boring weekend and my -you gotta do something old man- feeling drag me to dust off an old Cisco WLC 2504 I bought years back on eBay. As expected it…
How to assign a static IP address to Cisco’s CIMC
The Cisco Integrated Management Controller or CIMC for short is a dedicated hardware controller that comes bundled with Cisco’s UCS servers and allows you to do management and monitoring of…
How to recover forgotten IPMI credentials on pfSense
I’ve been using a pair of Netgate XG-1541 in HA for some months as a test perimeter firewall and so far it’s been a smooth ride. This model comes with…
Design flaws: Tripplite, seriously?
For the latest datacenter I worked in we considered Tripplite racks and PDUs since the prices were extremely competitive and the brand was “not that bad”. APC has always been…