Category Archives: Troubleshooting

Various problems solutions

Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod AutoScaler
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15 February 2020

Assuming, we already have an AWS EKS cluster with worker nodes. In this post – we will connect to a newly created cluster, will create a test deployment with an HPA – Kubernetes Horizontal Pod AutoScaler and will try to get information about resources usage using kubectl top. Kubernetes cluster Create a test cluster using… Read More: Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod… »

Debian: php7.3-curl : Depends: libcurl3 (>= 7.44.0) but it is not installable
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23 January 2020

We have a Jenkins job that runs a Docker container to build a PHP-application based on the Yii framework. Suddenly during the build, we got an error: … Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required… Read More: Debian: php7.3-curl : Depends: libcurl3 (>= 7.44.0) but it is… »

KeePass: an MFA TOTP codes, a browser’s passwords, SSH keys passwords storage configuration and Secret Service integration
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12 December 2019

So, this seems to be the last one post in the whole series about passwords and SSH management in Linux. The previous parts were about: Linux: the Nextcloud client, qtkeychain and the “The name org.freedesktop.secrets was not provided by any .service files” error – I found that a keyring service is able to store SSH… Read More: KeePass: an MFA TOTP codes, a browser’s passwords, SSH keys… »

What is: Linux keyring, gnome-keyring, Secret Service, and D-Bus
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7 December 2019

It’s a really long-read post and I wast sure if it’s better to split it into three parts or put them together. On the one side, there are keyrings, from another – D-Bus, and finally, there is a Secret Service. Eventually, I decided to keep them here together as I googled all it in the… Read More: What is: Linux keyring, gnome-keyring, Secret Service, and D-Bus0 (0) »

Linux: the Nextcloud client, qtkeychain and the “The name org.freedesktop.secrets was not provided by any .service files” error
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1 December 2019

After installing Nextcloud (see the Nextcloud: running in Docker Compose on Debian with Let’s Encrypt SSL post), on the next day its client ton my Arch Linux asked for authentication. But after I entered my credentials, it returned me the following error: Reading from keychain failed with error: ‘The name org.freedesktop.secrets was not provided by… Read More: Linux: the Nextcloud client, qtkeychain and the “The name org.freedesktop.secrets… »

Arch Linux: key could not be imported – required key missing from keyring
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25 November 2019

A couple of days ago I got an additional laptop to take it on meetings. As it will be used rarely and not as my main laptop – I decided to install Manjaro Linux there instead of usual Arch Linux – to take a look at the Manjaro itself and because don’t want to spend… Read More: Arch Linux: key could not be imported – required key… »

HTTP: redirects, POST and GET requests, and the “lost” data
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23 November 2019

We have a web application which has to accept POST-requests from clients. In front of this application, there is some proxy service, no matter which – initially, we faced the issues on an AWS’s Application Load Balancer, then I reproduced them with NGINX, and it will “work” for any other proxying system. Besides proxying –… Read More: HTTP: redirects, POST and GET requests, and the “lost” data0… »

Grafana: Loki – the LogQL’s Prometheus-like counters, aggregation functions and dnsmasq’s requests graphs
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17 November 2019

The last time I configured Loki for logs collecting and monitoring was in February 2019 – almost a year ago, see the Grafana Labs: Loki – logs collecting and monitoring system post, when Loki was in its Beta state. Now we faced with outgoing traffic issues in our Production environments and can’t find who guilty for… Read More: Grafana: Loki – the LogQL’s Prometheus-like counters, aggregation functions and… »

dnsmasq: AWS – “Temporary failure in name resolution”, logs, debug and dnsmasq cache size
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28 October 2019

We are using AWS VPC DNS and sometimes facing with errors like “php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution“. The only advice from AWS tech. support was to configure a local dnsmasq service to act as a local DNS cache, but I did this already year ago and this issue happens once in 1-2-3… Read More: dnsmasq: AWS – “Temporary failure in name resolution”, logs, debug… »

Arch Linux: package-query: error while loading shared libraries: libalpm.so.11
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26 October 2019

Didn’t install upgrades for a couple of weeks, today packages to be upgraded became over 100, so I run it. Upgrades on my Arch Linux are installed with a simple alias in the.bashrc: … alias osupgrade=”yaourt -Syua –noconfirm” … (seems eventually it’s time to change it to the alias osupgrade=”yay -Syua –noconfirm”) The error Usually,… Read More: Arch Linux: package-query: error while loading shared libraries: libalpm.so.110 (0) »