ck πŸ‘¨β€πŸ’»

Geek, father, blogging on www.claudiokuenzler.com

ck πŸ‘¨β€πŸ’» boosted:
2025-05-27

In our latest #tutorial we explain how to use #git to pull a _different_ branch from the remote repository and continue working on this newly pulled branch.

geekersdigest.com/how-to-pull-

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-05-26

A customer recently reached out to us that their #Icinga UI no longer showed the embedded #Grafana visualizations.

The "grafana" module for Icingaweb2 has undergone a lot of changes in the past, including a fork and support for newer #PHP versions.

Thanks to our #troubleshooting the reason was quickly identified: A major release upgrade of Grafana caused a breaking change in the dashboard UIDs.

In the latest post on our Infiniroot #blog we share our analysis and fix.

infiniroot.com/blog/1487/embed

ck πŸ‘¨β€πŸ’» boosted:
Agnieszka R. TurczyΕ„skaagturcz@circumstances.run
2025-05-26

Parenting.

A piece of paper attached to some furniture, with following text printed on:

Mom’s Gone Weekend Rules
* Don't add to the population
* Don't subtract to the population 
* Don’t damage or destroy physical property
* Stay out of the hospital, the newspaper and jail
ck πŸ‘¨β€πŸ’»ck@noc.social
2025-05-23

Usually I rant about bad #hardware. Given my personal "closeness" to physical #servers, such failed hardware parts are mostly hard drives but sometimes also broken solid state drives.

But in fairness, there are also some very good products out there. This post is about such a surprisingly well behaving #SSD from #Sandisk.

claudiokuenzler.com/blog/1486/

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-05-22

@heiglandreas Please don't move while I try to shoot you...

ck πŸ‘¨β€πŸ’» boosted:
2025-05-22

The default #Shell terminal in @linuxmint is the GNOME Terminal.

In new installations of #Linux Mint you might notice that the menu bar in the #Terminal window is no longer showing up.

In our latest #tutorial we show how to change the preferences to get the menu bar back.

geekersdigest.com/how-to-re-en

ck πŸ‘¨β€πŸ’» boosted:
2025-05-18

O2 leaks customer location information down to a 100mΒ², sometimes closer on small cell sites. And the only special device needed to see it is a rooted Android.

mastdatabase.co.uk/blog/2025/0

#privacy #cellular #o2 #virginuk #security #infosec

ck πŸ‘¨β€πŸ’» boosted:
2025-05-15

After a pause of several years, hard drive producer Western Digital Corporation (NASDAQ: WDC) announced the return of quarterly cash #dividends starting Q3 2025.

This announcement comes surprisingly early. Just three months earlier, #WDC completed the company separation of Flash drives and products into the #SanDisk spin-off.

geekersdigest.com/western-digi

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-05-09

As @ubuntu 20.04 LTS ran into end of life in the past months, I upgraded quite a few servers to a newer LTS version in the past few weeks.

Every #Linux machine was successfully upgraded. Every single machine?

No! One single virtual machine, in the vast territory of serverland, refused to operate under the new LTS emperor!

Here's my #troubleshooting story of an #Ubuntu machine running into a #Kernel panic. And as it turns out, for a very strange reason.

claudiokuenzler.com/blog/1485/

ck πŸ‘¨β€πŸ’» boosted:
2025-05-07

Our latest #tutorial is a little bit different, compared to our usual OpenSource posts.

If you own a #SolarEdge inverter and use #ModbusTCP for your own monitoring or to grab #PV metrics (#HomeAssistant uses this, too), you might have run into some communication issues.

In our post we show how to manually restart the #Modbus service on a SolarEdge inverter.

geekersdigest.com/how-to-resta

ck πŸ‘¨β€πŸ’» boosted:
1.3.6.1.4.1.61513xssfox@cloudisland.nz
2025-05-06

We replaced $perfectly_good_feature with $new_feature..the old one is going away.

Can it do everything that $perfectly_good_feature did?

Hell no. Btw we are increasing the cost of the product because of all the new features we are releasing.

ck πŸ‘¨β€πŸ’» boosted:
Major Hayden 🀠major@tootloop.com
2025-05-03

Perfection.

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-05-02

All our managed #Kubernetes clusters are monitored and fully integrated into our #Icinga core #monitoring.

When we recently got a cluster alert, we first suspected one or more cluster nodes running into a "node pressure" situation.

But as the analysis went on - it turned out to be a Kernel bug!

On our Infiniroot blog, we share our #troubleshooting and analysis steps in our latest post.

Happy Weekend. May your clusters stay online. β˜€οΈ

infiniroot.com/blog/1484/kube-

ck πŸ‘¨β€πŸ’» boosted:
2025-04-25

The so-called Developer Tools in the @mozilla Firefox browser are extremely helpful to debug application code and #HTTP errors.

Long-time #Firefox users may have noticed a change in the "Edit and Resend" function. In the past, the request headers could be modified - they are now greyed out.

But with a small configuration change, the old behaviour of "Edit and Resend" can be enabled again. This allows to modify the request headers before re-sending the request.

In our latest #tutorial post we show how.
geekersdigest.com/how-to-modif

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-04-24

After I adjusted a field type in the Elastic #Logstash configuration to "integer" (which is translated into "long" in #Elasticsearch), the field now led to a conflict in #kibana

In order to change the field type, there was (unfortunately) no other way around re-indexing the data into a new index.

It worked. But it's slow, to say the least, for large indices.

claudiokuenzler.com/blog/1483/

ck πŸ‘¨β€πŸ’» boosted:
2025-04-23

Only one more week left and #Ubuntu 20.04 LTS will be offiically end of life and will no longer receive security updates.

Last call to upgrade your Ubuntu #Linux!

And to not run into unforeseeable problems, we've put together a list of potential upgrade hurdles.

techhub.social/@geekersdigest/

geekersdigest.com/ubuntu-20-04

ck πŸ‘¨β€πŸ’» boosted:
2025-04-17

A foreign configured mdadm #raid array is auto-detected in #Linux and is named md127 by default.

In our latest #turorial we show how to rename a mdadm raid array and keep the name persistent.

geekersdigest.com/how-to-renam

ck πŸ‘¨β€πŸ’»ck@noc.social
2025-04-15

After an #Ubuntu #Linux distribution upgrade, monitoring checks using PhantomJS in the background stopped working.

Lot of question marks as to why (besides development on PhantomJS has stopped in 2023).

At the end of the #troubleshooting path, which I shared and you can read in the link below if you want, it turned out to be a problem with the default OpenSSL config.

Maybe it'll be helpful to someone else running into something similar. πŸ€·β€β™‚οΈ

claudiokuenzler.com/blog/1482/

ck πŸ‘¨β€πŸ’» boosted:
VulDB :verified:vuldb@infosec.exchange
2025-04-11

We have just added an important vulnerability affecting SUSE Rancher (CVE-2025-23388) vuldb.com/?id.304505

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