OMG – I’m geting old
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Yearly Archives: 2017
Spacewalk – get the info you need
Spacewalk is the opensource 5.5 version of the Red Hat Satellite Server (which is now at version 6.x). It is a way to manage OS software from a centralized repository to a distributed inventory. The spacewalk server connects to an upstream repository (CentOS 7 for instance), and copies the software to the local network. You […]
Continue ReadingCybersecurity
https://www.linkedin.com/feed/update/urn:li:activity:6294215554433581056
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WTF is an SRE
Site reliability engineering (SRE) is a discipline that incorporates aspects of software engineering and applies that to operations whose goals are to create ultra-scalable and highly reliable software systems A site reliability engineer (SRE) will ideally spend up to 50% of their time doing “ops” related work such as issues, on-call, and manual intervention. Since […]
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DevOps vs Site Reliability Engineering
DevOps vs Site Reliability Engineering I’ve been around for a really long time. It was about 5 or 6 years ago that I started hearing the term DevOps. I wasn’t sure what to make of it, but I assumed it was a systems administrator that wrote code to automate tasks. It was basically what I’ve […]
Continue ReadingConfession Of A C/C++ Programmer
I saw this one posted to reddit/r/programming today: http://robert.ocallahan.org/2017/07/confession-of-cc-programmer.html I’ve been programming in C and C++ for over 25 years. I have a PhD in Computer Science from a top-ranked program, and I was a Distinguished Engineer at Mozilla where for over ten years my main job was developing and reviewing C++ code. I cannot […]
Continue ReadingANSI Escape Codes
I was looking at an old version of my site and I saw a Link to ANSI Escape Codes – you never really hear about anyone using these things any more – but they are still kind of great when you are writing terminal based code (which I often do) – I should probably start […]
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Artist – Casey Childs
http://www.principlegallery.com/alexandria/artists-page?field_artist_target_id=394&nid=394# I’ve been getting into hyperrealism and photorealism Art. I’ve always appreciated the amazing talent that goes into these compositions – but instead of just stumbling across it and saying “Wow – that’s amazing”, I’m seeking it out and hopefully will get a chance to see some in person – I haven’t yet – just […]
Continue Readingauditd / collectl – Linux system auditing and monitoring
Auditd Digital Ocean has a really great tutorial for Auditd IntroductionThe Linux Auditing System helps system administrators create an audit trail, a log for every action on the server. We can track security-relevant events, record the events in a log file, and detect misuse or unauthorized activities by inspecting the audit log files. We can […]
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CIS Security Hardening for RHEL 7 with Ansible
A common guide line for security hardening is from the Center for Internet Security. They publish benchmark documents which you can download here: https://www.cisecurity.org/cis-benchmarks/ The bench marks are used as a guide to shut off unused or insecure services, remove extraneous packages, stop support for insecure file systems, and set up secure kernel parameters. Once […]
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