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 »

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Nextcloud: running in Docker Compose on Debian with Let’s Encrypt SSL
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30 November 2019

I while ago I’d tested the Nextcloud, see the NextCloud: installing server on Debian behind NGINX with PHP-FPM and client on Arch Linux post. In general, it looks good, so it’s time to try to run in a production environment and finally migrate from Dropbox to it. Today, let’s spin up a Nextcloud instance using… Read More »

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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 »

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AWS: RDS Certificate Authority SSL certificate upgrade
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22 November 2019

We started receiving emails from AWS with notifications to update RDS Certificate Authority certificates. It’s time to do it, so let’s start from our Dev, then will repeat on Staging and Production environments. W eare using common AWS RDS MariaDB instances, and the upgrade documentation is available here>>>. The process itself is really simple and… Read More »

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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 »

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What is: SAML – an overview, its structure and requests tracing between a Jenkins and Okta SSO
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17 November 2019

During the SAML SSO configuration for our Jenkins, I faced an issue, when some attributes weren’t passed from Okta to the Jenkins instance. So in this post will try to figure out what is SAML in general, will take a short overview of its architecture and main components, and will make some SAML-requests tracing/sniffing to… Read More »

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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 »

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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 »

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