TIL checking your routing tables on Ubuntu
So, in the past, I've used tools such as ifconfig and route and netstat, but TIL something new ...I was trying to debug a networking problem with a container running on one of my Secure Service...
View ArticlePlaying with Overcast podcasting app on iOS 14
I'm not a total fan of the updated Podcasts app on iOS 14, in terms of the new UI/UX, specifically the melange of Listen Now / Up Next, Latest Episodes and Recently Played.I may get used to it,...
View ArticleSSL and Ciphers on my Synology DiskStation
Whilst tinkering with my Synology DS-414 Network Attached Storage (NAS), I was trying/failing to SSH into the box: -ssh -p 8822 admin@diskstationI was seeing: -Unable to negotiate with 192.168.1.17...
View ArticleDebugging Kubernetes DNS
This is totally cribbed from here -> Debugging DNS Resolution Create dnsutils.yaml filecat << EOF > ~/dnsutils.yamlapiVersion: v1kind: Podmetadata: name: dnsutils namespace: defaultspec:...
View ArticleApple AirPods Suck ... no, read on, it's not what you think....
For the record, I totally love my Apple AirPods, and am on my second pair since they were first released ....I haven't (yet) got the AirPods Pro, but that's next year's purchase ....Meantime, I was a...
View ArticleIt's been a while, tinkering with IBM MQ and scripting ...
I'd been asked about scripting access to IBM MQ ... as it's been a while since last I worked with it, I decided to install MQ 9 onto a Linux VM, and have a quick play .....So my VM is running Ubuntu...
View Article"Permission denied" - Docker and permissions and PostgreSQL
Long story very short, I've been wrangling with a knotty "Permission denied" issue with a PostgreSQL container, with regard to some SQL and Bash scripts that the Dockerfile copies into the...
View ArticleDocker Content Trust and the case of the strange errors e.g. "read/write on...
Whilst trying to build a Docker image on one of my IBM Z build servers yesterday, I hit a weird series of errors, including : -ERRO[0000] Can't add file /root/dave/hello to tar: io: read/write on...
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Tinkering with SonarQube for code-scanning shell scripts ...
I'm having a very quick tinker with a tool called SonarQube for code quality scanning.One of my colleagues had asked whether SQ can scan scripts e.g. Bash, which made me go "Hmmmm" and start to play...
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Getting to grips with Maven - in five minutes ...
As part of my investigation into SonarQube, as per: -Tinkering with SonarQube for code-scanning shell scripts ... I wanted to validate SQ's ability to scan Java projects.SQ "assumes" that you're either...
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Talking with tree - on the Mac
Now back in the day, I remember a version of DOS or Windows that introduced the tree command that allowed one to produce a pseudo-graphical listing of a file-system.This nice picture from Wikipedia...
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More about SonarQube and scanning Java source code ....
As per previous posts : -Tinkering with SonarQube for code-scanning shell scripts ...Getting to grips with Maven - in five minutes ...I've been tinkering further with SonarQube (SQ) to scan projects...
View ArticleVMware Fusion - Toggling back and forth...
A friend had asked how one can switch out of full-screen whilst running a VM within VMware Fusion on the Mac.I had a quick dig about, and found this: -Return to Another View from Full Screen Viewwhich...
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More on SonarQube - RESTing on my laurels
Following on from earlier posts: -Tinkering with SonarQube for code-scanning shell scripts ...More about SonarQube and scanning Java source code ....I wanted to dig into the REST APIs that SonarQube...
View ArticleTinkering with Docker and relative vs. absolute paths for volume mounting
A colleague asked how he might use a relative path e.g. ~/foobar or ../foobar instead of an absolute path e.g. /home/Dave or /tmp/foobar when mapping a path on the host to a path inside a container,...
View ArticleTinkering with Tekton - A useful read
As one of my many side-projects, I have been tinkering with Tekton Pipelines on the IBM Z ( s390x ) platform, and am currently looking at at an issue we've been seeing with Tasks and Ubuntu...
View ArticlemacOS and the `networksetup` command - now I did not know that
Whilst providing some guidance to a colleague having fun with their Mac's DNS configuration, I "discovered" a new ( to me ) command - networksetup - which includes a HUGE array of useful commands:...
View ArticleMitigating "SSL Medium Strength Cipher Suites Supported" warnings from Nessus...
It's been a while, but I'm back in the world of IBM Cloud Private (ICP), specifically mitigating a cipher warning message from a Nessus endpoint scan.One of my z/Linux boxes, running Red Hat...
View ArticleUbuntu upgrades - dealing with things that don't get upgraded
Doing an upgrade on an Ubuntu 18.04 boxen: - apt-get upgrade...Calculating upgrade... DoneThe following packages were automatically installed and are no longer required: linux-headers-4.15.0-112...
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Sharing media libraries between Apple Macs - d'oh, I'm holding it wrong
So I've got a Mac Mini on my home network, acting ( in part ) as a media server, using Media Sharing ( enabled via System Preferences -> Sharing ).This allows me to share my DVD library across my...
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