Tag Archives: Linux

SSH: RSA keys, and ssh-agent for SSH keys and their passwords management
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1 December 2019

During keyring configuration for the Nextcloud client (see the Linux: the Nextcloud client, qtkeychain and the “The name org.freedesktop.secrets was not provided by any .service files” error post) – I decided to clean up the mess in my SSH keys, as I have a lot of them and sometimes authentication became just pain. In general… Read More: SSH: RSA keys, and ssh-agent for SSH keys and their… »

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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… »

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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… »

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Linux: Kazam – record a screencast
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21 November 2019

had to create a short demonstration video for Okta’s support, googled a tiny, quick and simple application – Kazam. On Arch Linux can be install from AUR: [simterm] $ yaourt -S kazam [/simterm] Run it: [simterm] $ kazam [/simterm] I set the Automatic save by default (to the ~/Videos): Now, chose an area to record… Read More: Linux: Kazam – record a screencast0 (0) »

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Redis: main configuration parameters and performance tuning overview
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10 September 2019

Currently configuring Redis server as our backend caching service and during that wrote this post with some things to pay attention at in Redis config file. Shortly enough but with links to other posts or documentation. Let’s begin with the redis-benchmark utility. Will be installed alongside with Redis service, so can be used right after… Read More: Redis: main configuration parameters and performance tuning overview0 (0) »

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Redis: fork – Cannot allocate memory, Linux, virtual memory and vm.overcommit_memory
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28 August 2019

Currently, I’m configuring a Redis as a caching service for our application and during that, I faced with the question: do I need to set vm.overcommit_memory to the value 1, i.e. disable it – or not? The question is quite old for me, see The story, but only now I found time to get to… Read More: Redis: fork – Cannot allocate memory, Linux, virtual memory and… »

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Linux: A stop job is running for Session c1 of user setevoy (1min 30s)
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15 May 2019

The issue happened on a fresh Arch Linux installation but the solution here can be used on any systemd-based distributive. So, during restarts system hangs for 1.5 minutes with a message like: A stop job is running for Session c1 of user setevoy (1min 30s) To check which process(es) exactly caused this you can use… Read More: Linux: A stop job is running for Session c1 of… »

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Linux: GPG-keys, Pass – passwords manager, and passwords import from the KeePass database
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25 April 2019

pass – a password manager for Linux/UNIX. Stores data in tree-based directories/files structure and encrypts files with a GPG-key. In Arch Linux present by default, in Debian can be installed using apt from default repositories: [simterm] $ sudo apt install pass [/simterm] For macOS can be installed with Homebrew: [simterm] $ brew install pass [/simterm]… Read More: Linux: GPG-keys, Pass – passwords manager, and passwords import from… »

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Atom: useful plugins
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8 April 2019

Usually, I’m using vim almost for everything excepting big Python projects (which happen rarely last time). In such cases, I have PyCharm, which is also used for AWS CloudFormation templates with the aws-cloudformation plugin. For the  Go lang programmes I have used vim with the vim-go plugin but on last weekend I tried the Atom… Read More: Atom: useful plugins0 (0) »

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