Ivan Tomica

Ivan Tomica

Total 111 Posts Website
Sysadmin on the everlasting journey of learning. Always in search for an opportunity to prove myself and to learn something new. My addiction is learning and my main goal is to excel in every aspect of Linux/Unix system administration.

Wildcard LetsEncrypt SSL/TLS certificate with Bind

Having wildcard SSL certificate can sometimes really help with streamlining vhost creation, where you don’t need to step extra step for issuing new SSL/TLS certificate. Although I attempt to automate every bit of the infrastructure I manage, and also have certificate issuance automated with my current configuration management system of

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Migrating to Miniflux

Until recently I solely used TinyTinyRSS for staying on top of the various news, following application releases/updates and so on. But, few weeks ago I started to looking at different feed aggregation applications. From the technical standpoint TTRSS was really on top of it. It worked quite fine. The fact

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mu4e on Fedora

Since recently I’m an Emacs user, and as such I like to have my Emacs everywhere. Including on the laptop which runs Fedora 30 at this moment. One of the most crucial things for me is email, which is being handled by mu/mu4e. And since I was unable to google

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My Vim configuration

Although recently I’ve switched most of my workflow into the Emacs 😈 I still edit things here and there in Vim. Vim doesn’t have many nice and fancy features enabled by default, but that’s OK, I like it light. But not so light… soo… this post will show configuration options

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PostgreSQL online VACUUM with pg_repack

Those familiar with PostgreSQL know how it internally manages blocks for storing data and how when you delete some entry it is only marked dead (dead tuples). In order to reclaim space VACUUM needs to be run. Vacuuming database won’t give that space back to the operating system, instead, it

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Gitlab Patch upgrades

I’ve been hosting my Gitlab instance for some time now. Gives me the freedom of experimenting with various features and also forces me to learn a thing or two about it. Install I currently have has been done via installation from source. Reason for that was that Omnibus package has

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Apache: No space left on device

When apache reports no space left on device: couldn’t create accept lock and you’ve checked both disk space and inode usage of disk and they both report as fine check active semaphores: ipcs -s If there’s high number of them, Apache probably hasn’t cleared up after itself and some semaphores

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