Allowing Third Party Transceivers

Thu 15 July 2021 by feld

Internet search engines are censoring this data so I will probably have to embed it in a photo, but here is how you enable use of third party transceivers such as SFP/SFP+ fiber optics on e.g., Juniper's JunOS and Cisco IOS.

Juniper:

Cisco:

HP/Aruba:

Dell:

This is something seasoned network engineers know about, but there's no reason why this should be kept secret.

I will add more when I learn of them.

iPhone 11 Pro Has Broken Exif Orientation Data

Fri 11 October 2019 by feld

I have the new iPhone 11 Pro. It's a great camera. Turns out all of the photos I've taken so far have had incorrect EXIF Orientation data. This really sucks. I've confirmed the same issue happens on my wife's phone.

It's shocking that this has not been noticed by Apple …

Percona Toolkit Information Disclosure Vulnerability

Thu 09 August 2018 by feld

Percona includes an information disclosure vulnerability in the form of a "version check" feature in many of their products. Every time you run a database backup with xtrabackup or use any of the Percona Toolkit scripts the following information is collected and posted to https://v.percona.com:

OS Platform …

vBulletin cannot login without "Remember Me"

Wed 25 July 2018 by feld

If you happen to run a vBulletin forum and hit an issue where you cannot login to the site without first selecting the "Remember Me" checkbox, would you happen to be on CloudFlare or be using a reverse proxy? Make sure for CloudFlare you have the list of their upstream …

Git Is Not Revision Control

Sun 21 January 2018 by feld

Git has always rubbed me the wrong way. The ability to rewrite history and not tracking file renames are a few of the reasons it has turned me sour, not to mention the awful inconsistent UX as brilliantly mocked in Git Koans. I'm not objective enough to come up with …

Book Review: Altered Carbon

Wed 06 December 2017 by feld

Title: Altered Carbon

Author: Morgan K. Richard

Takeshi Kovacs is brought to earth in a sleeve he doesn't own. His reputation precedes him, and he has been offered a reward for solving the murder of Laurens Bancroft which local authorities ruled a suicide...

This book explores some provocative aspects of …

Book Review: Invasive

Sun 07 May 2017 by feld

Title: Invasive

Author: Chuck Wendig

This is a backdated review

Set in the same universe as Zeroes, Invasive explores the possible consequences of research into genetically altered insects (ants). We are already doing this with mosquitoes to try to stop the spread of infectious disease, so this technology is with …

FreeBSD Remote Serial Console Access With Dell and Cisco Servers

Mon 01 May 2017 by feld

I have become allergic to Java. It seems every time I need to access a server console my system is throwing fits about Java security. I've spent hours trying to fix a Java issue which was preventing me from fixing a server I needed console access to. I will show …

Using FreeBSD as a Time Capsule for OSX

Mon 19 December 2016 by feld

I've had both a coworker and a FreeBSD developer ask me recently how to use FreeBSD as a Time Capsule for Time Machine from OSX. There are a lot of tutorials out there and most of them are non-functional. This is possibly the simplest guide that is known to be …

Generating DDNS TSIG Keys for BIND

Thu 15 December 2016 by feld

The tutorials on how to generate TSIG keys for BIND DDNS updates suck. It would also be tedious if tasked to generate several. I'm not sure why ISC has not produced a standalone script or utility to make this easier as nobody should have to piece it together by hand …