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Major version upgrdae

Debian family (pure Debian, Ubuntu) Repositories

Upgrade major version apt update apt upgrade -y shutdown -r now apt install update-manager-core ...

Updated 1 week ago by Anton

Fail2Ban - securing services and web applications

Hardening

Determine, which firewall is running systemctl is-active ufw ufw status systemctl is-active nfta...

Updated 1 week ago by Anton

Moving most consuming directory to the separate disk

Disks and partitions

In my case, one directory is consuming most of the disk space dedicated for the system. Stop the ...

Updated 3 weeks ago by Anton

2025-07-26 - here and there

Journal

Deployed PAM solution: goTeleport Garmin Boating (former Navionics) on Android tablet for a week...

Updated 1 month ago by Anton

Research on alternative to native Calendar application in MacOS

Awaiting list MacOS

Disadvantages or "What could be done better" Creating overlapping event The biggest challenge in...

Updated 1 month ago by Anton

EnterpriseDB PosgreSQL with TDE Support @OL8 (Oracle Linux 8)

EnterpriseDB (PostgresSQL from Enterpri...

Pre-requistes In my setup, I planned to virtualize VM in Parallels on Macintosh with M1 processor...

Updated 1 month ago by Anton

BookStack @OL9 (Oracle Linux 9)

BookStack

Let's deploy BookStack web application to the isolated environment, but with repository server av...

Updated 1 month ago by Anton

Nextcloud @Nginx @Oracle Linux v9.5 with self-signed cert (for virtualization)

Nextcloud

preparations disable IPv6 TODO: sysclt ipv6... dnf update dnf install \ mariadb \ wget \...

Updated 1 month ago by Anton

Adding more space to virtual machine by adding new disk and expanding using LVM

Virtualization Oracle VirtualBox @Windows10Pro

Daily task, which comes as daily routing, to extend the disk space: Switch off the machine Open V...

Updated 1 month ago by Anton

LVM

Disks and partitions

Author does not take any responsibilities on the guide below. Create new physical volume, volume ...

Updated 1 month ago by Anton

Repository proxy server aka satellite server for Redhat family.

RedHat family (Oracle Linux, Alma Linux...

This setup is done on Oracle Linux v9.5. Advantages and disadvantages: + One source of truth + Le...

Updated 1 month ago by Anton

Cloning the machines and post-install for Oracle Linux v9

Virtualization Oracle VirtualBox @Windows10Pro

At the moment of writing, on 2025-07-18, my VirtualBox is v7.1.6. Open VirtualBox, find the sour...

Updated 1 month ago by Anton

MariaDB Galera Cluster @OracleLinux9.5 using ClusterControl install-cc script with limited Internet connection (via repository proxy aka satellite server).

ClusterControl

Download Oracle Linux distro and connect it to Repository Server, as described here.: (2025-02-1...

Updated 1 month ago by Anton

2025-05-15 - at KAFD, Riyadh, KSA

Journal

There was a hectic weeks behind, some topics I briefly touched: Audacity: conference mic spect...

Updated 3 months ago by Anton

Update and/or upgrade of OPNsense in GCP

Virtual Personal Network (VPN) OPNsense

Considerations: Time: from v24 to v25 it took around two-three hours to complete upgrades. Prepar...

Updated 3 months ago by Anton

2025-04-02

Journal

Pi-hole as reverse DNS for home OpenWRT router Internal A records in Pi-Hole for local infra myi...

Updated 3 months ago by Anton

keepassxc-cli with keyfile and YubiKey hardware token

Passwords, keys, certificates KeePassXC

Install https://keepassxc.org/download/#macos Make alias (for Macintosh) vi ~/.zshrc alias kp='...

Updated 3 months ago by Anton

Replicate Nextcloud instance to another server

Nextcloud

Destination: Prepare export user="user" export src="(source host)" export dst="(destination host)...

Updated 3 months ago by Anton

NFS export

Disks and partitions

Mount it to freshly created directory. Add to fstab for automatic mount during boot process. Prep...

Updated 3 months ago by Anton

2025-03-30

Journal

SketchUp (WebUI) BetterDisplay (new display) CloudText

Updated 5 months ago by Anton