Linux

Open Source is 20; Let's Wander Down Memory Lane

I'm a week behind as the 20th anniversary of "Open Source" was a week ago. Back on February 3, 1998 the term "Open Source" was coined as a result of the decision of Netscape Communications Corp to give away the source code to it's Netscape Navigator browser earlier on January 23, 1998. Red Hat has a nice recap of what happened then in its Celebrating the 20th anniversary of open source ...

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Linux

Red Hat Container Health Index

Today is the first day of Red Hat Summit 2017, this year in Boston. I'm not there, but am thoroughly enjoying watching the keynotes and other interviews via TheCube on Summit. One of the big things that we've been working on for a while that was announced today is the Container Health Index within our Red Hat Container Catalog. I'm not going to go into detail here as I've already ...

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Linux

Using GitLab CI to deploy to remote host over ssh

I've been using GitLab for a while now and I really like it. I can't objectively say whether it's better than GitHub or not (I have a few projects on GitHub but I rarely make any changes to them and even more rarely use the web UI), but one of the things I appreciate about GitLab is the fact that I can run my own copy of it and store my own stuff in ...

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Linux

Countdown to SHA1-based HTTPS Doom

So it's been noted in a few places that 2017 is the year that SHA1 for HTTPS is doomed. Microsoft has deprecated SHA1 in Edge and Internet Explorer browsers and in February 2017 will be blocking them entirely. Google is doing the same thing with Chrome starting January 2017, as is Firefox.

Most sites today don't use SHA1-based SSL certificates (which is good) and there are sites you can go ...

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Linux

Periodic security reviews (and a bit of a rant)

Today marks one month that my "work time" is 100% devoted to Red Hat; last month I "retired" from any of the IT/web work for my church that I've been doing for the last 12 or so years. It's been an interesting month being able to spend time on things that I want to spend on outside of regular Red Hat work hours. =) My rediscovered and available time has been spent ...

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Linux

Current progress of new blog platform

I've not had much time in the past week to work on the blog platform due to getting back to work after two weeks off. So that means future enhancements to the blog will take a bit longer.

I managed to implement a fairly basic commenting system that works well, so at least now you can offer your thoughts and comments on blog posts. The one thing that's really missing before I redirect the ...

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Linux

Serial console support in Grub2

This is another one of those "just so I don't forget" posts. I'm working towards migrating from IPA in a KVM-based virtual machine running CentOS 6 to one running CentOS 7 and the way of making serial consoles work in 7 is different than it was in 6 because CentOS 7 (and thus RHEL7) use Grub2.

Instead of editing /boot/grub.cfg, you need to edit /etc/defaults/grub and add:

GRUB_TERMINAL="serial" GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200"

The above will enable Grub output to ...

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Linux

Getting started with firewalld

I'm mostly writing this for my own reference as I spent a bunch of time figuring this out while I was on holidays with some serious oVirt misadventures and didn't document any of what I did, so since I had to reinstall CentOS 7, I'm stuck doing this all over again.

Effectively I'm migrating from CentOS 6 to CentOS 7 and trying to take advantage of the new way of doing things. I could easily ...

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Linux

Blocking ad networks with named

I've meant to do this for ages, so on my first day of my "staycation", despite vowing to myself that I wouldn't look at a computer screen this week (hey, it's not actually the technical start of my week off is it?), I fiddled this morning with BIND to try and avoid seeing ads on my devices. While AdBlock works great on my browsers, that doesn't transfer well to mobile devices and apps with ...

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