Posted by jpluimers on 2018/07/23
One day you will do containers.
If you want to know how k8n (Kubernetes) can help you with Docker containers, then read [WayBack] The Illustrated Guide to Kubernetes – The Isoblog. and watch the video below.
Very well explained!
Via: [WayBack] The Illustrated Children’s Guide to Kubernetes http://blog.koehntopp.info/index.php/1450-the-illustrated-guide-to-kubernetes/ You can now stop recommending it to me. – Kristian Köhntopp – Google+
–jeroen
Posted in Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n), Power User | Leave a Comment »
Posted by jpluimers on 2018/07/16
It seems netsh is something different than bash or csh as it is the command-line interface to many (all?) Windows Firewall settings.
So I need to put some time into learning it.
This gives you all the names of firewall rules, ready for text searching it (with find, grep, etc):
netsh advfirewall firewall show rule name=all
An alternative might be PowerShell as it too has a lot of Windows Firewall plumbing: [WayBack] How to manage the Windows firewall settings with PowerShell – James O’Neill’s blog
Choices, choices.
–jeroen
via: [WayBack] windows firewall – How can I use netsh to find a rule using a pattern – Server Fault
Posted in Firewall, Power User, Windows | Leave a Comment »
Posted by jpluimers on 2018/05/14
Well worth watching: “A Journey to OCP”, Open Compute Meetup in Amsterdam – YouTube
Keywords: Open Compute Platform, Booking, Kohntopp
Related: [WayBack] To France… – The Isoblog.
–jeroen
Posted in Cloud, Infrastructure | Leave a Comment »
Posted by jpluimers on 2018/05/07
Reminder to self for Windows Firewall: Block rules take precedence over Allow rules (see * below as actually it is even more complex); [WayBack] Firewall Rule Properties Page: General Tab has
Firewall rules are evaluated in the following order:
- Allow if secure with Override block rules selected in the Customize Allow if Secure Settings dialog box.
- Block the connection.
- Allow the connection.
- Default profile behavior (allow or block as specified on the applicable Profile tab of the Windows Firewall with Advanced Security Properties dialog box).
Within each category, rules are evaluated from the most specific to the least specific. A rule that specifies four criteria is selected over a rule that specifies only three criteria.
Which means that this will block TCP port 1024 traffic to bar.exe:
The Block rules are inserted by Windows if you click “Cancel” on a dialog like this (note the lowercase path, despite the application being at C:\Program Files (x86)\Foo\Bar.exe):
Posted in Firewall, Infrastructure, Power User, Windows | 1 Comment »
Posted by jpluimers on 2018/05/01
Via [WayBack] Limits on Everything – The Isoblog.:
A posting at Brave New Geek about limits on everything, for example limits on message sizes and numbers of in-flight messages in message queues. Interesting read.
Very interesting read indeed: [WayBack] Take It to the Limit: Considerations for Building Reliable Systems – Brave New Geek
You have to set limits, which begs for a few questions:
Food for thought…
The first can be done with benchmarking, see for instance these from the same blogs above:
Enforcing limits depends in your infrastructure and your communication stacks.
–jeroen
Posted in Cloud, Development, Infrastructure, Opinions, Software Development | Leave a Comment »
Posted by jpluimers on 2018/04/26
On my research list: Home – Outpan as it is a key-value store of EAN (actually GTIN, so including GS1 UPC, EAN which means barcodes like UPC-12, EAN-8, EAN-13 and ITF-14).
GET https://api.outpan.com/v2/products/[GTIN]?apikey=[YOUR API KEY]
POST https://api.outpan.com/v2/products/[GTIN]/name?apikey=[YOUR API KEY]
Required POST parameters:
name: The name you would like to add for this product.
POST https://api.outpan.com/v2/products/[GTIN]/attribute?apikey=[YOUR API KEY]
Required POST parameters:
name: Name of the attribute you would like to add for this product.
value: Value for the attribute you would like to add for this product.
–jeroen
via [WayBack] [How To] Scan a barcode and add the product name to Wunderlist : tasker
Posted in Barcode, Cloud, Cloud Apps, Cloud Development, Development, EAN, Infrastructure, Internet, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2018/04/16
This is upgrade/update week, so new disk space, and quite a bit of reorganisation going on.
Expect down-times in various portions of infrastatus.wiert.me
Secondaries should catch most, but some of the web-sites will be down for a while.
–jeroen
Posted in DevOps, Infrastructure, Power User | Leave a Comment »
Posted by jpluimers on 2018/04/04
Abstract from this morning’s Twitter feed:
1.1.1.1 [Wayback] DNS is broken in many areas (because of for instance AT&T, Vodafone, Cisco screwing up and 1.1.1.1 historically being marked for research purposes)9.9.9.9 [Wayback] DNS has government affiliation (owned by Quad9, but the partner list below does not look nice)So what’s left?
1.0.0.1 alternative to 1.1.1.1
8.8.8.8 with secondary at 8.8.4.4
There are a more interesting IPv4 addresses untaken for DNS, but I’m not sure they are likable enough:
Posted in Cloud, Cloudflare, DNS, Infrastructure, Internet, LifeHacker, Power User | Tagged: AllesIstKaput, Cloudflare, DNS, Privacy, TLS | Leave a Comment »
Posted by jpluimers on 2018/03/26
From [WayBack] Docker – Docker Cloud Migration Notification and FAQs:
The services on Docker Cloud that provide application, node, and swarm cluster management will be shutting down on May 21.
…
If you do not migrate by May 21, your applications running on the Docker node cluster management service will cease to operate.
Swarms will continue to function; however, if you do not retrieve your SSH keys for the Swarms being managed by our swarm cluster management service, you will be unable to access your swarms using your Docker ID. For instructions on how to retrieve and access your Swarms with SSH keys, please refer to the Docker docs.
So soon, no more [WayBack] Docker Cloud – Build, Ship and Run any App, Anywhere.
Remember: still the cloud is other peoples computers, so be sure you can move when needed.
–jeroen
Posted in Cloud, Cloud Development, Containers, Development, Docker, Infrastructure, Power User | Leave a Comment »
Posted by jpluimers on 2018/03/15
Over time, there are lots of complaints about Embarcadero related internet services (like forums, QC, Appanalytics, docwiki, blogs, web site, maintenance, …) so to track uptime, I’ve created a set of EmbarcaderoMonitoring pages:
This is preliminary work based on my own lists of Embarcadero endpoints combined with some research like [WayBack] dnsdumpster embarcadero.com.png and [WayBack] IdentIPSpy
Underneath, they run on the uptimerobot.com infrastructure which has a limit of 50 free monitors.
It means I have to:
Any ideas on improving this are welcome: please post a comment here on on the resulting G+ thread.
Note it likely won’t show cases like when the website was hacked or TLS certificate issues like in SSLLabs security reports for some embarcadero subdomains. I need to think about a means for those, as it will certainly help monitoring my own infrastructure in a similar way.
–jeroen
Posted in *nix, Cloud, Development, DevOps, Infrastructure, Monitoring, Power User, Software Development, Uptimerobot | Leave a Comment »
The Wiert Corner - irregular stream of stuff 