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Terminal via serial port on MacOS Sonoma
Connect Verify connectivity system_profiler SPUSBDataType | grep -i -A5 serial ioreg -p IOUSB ...
Update and/or upgrade of OPNsense in GCP
Considerations: Time: from v24 to v25 it took around two-three hours to complete upgrades. Prepar...
LVM - extend the volume
To extend the volume, we have to attach new physical (virtual) disk on hypervisor. Preparations W...
LVM - Creation of first physical volume, volume group and logical group.
Author does not take any responsibilities on the guide below. Create new physical volume, volume ...
Asterisk and FreePBX on Debian12
Preparations Database Create new user in Cloud SQL https://console.cloud.google.com/sql/instances...
RustDesk - deployment
Environment Operating System: Debian GNU/Linux 12 (bookworm) Create DNS record dig A desk.2dz.fi...
Podcasts
Audio Nextcloud Podcast SUSE Podcast Video
Hostname
Disbale cloud-init (which overwrites everyboot, not the first only) touch /etc/cloud/cloud-init.d...
Software supported on Windows XP (WinXP)
All applications listed below are 32-bit versions. Developer Software Confirmed late...
certbot
All commands executed in priviledged mode Show certificates in certbot registry certbot certifica...
fixperm.sh for /Users/Shared
Usage of resources from several profiles: /Users/Shared/tech/scripts/fixperm.sh #!/bin/bash # #...
Backup and restore configuration using Secure SHell (SSH)
scp must be enabled enable conf t ssh enable scopy dump running-config into file copy running-co...
Backup and restore configuration using Trivial File Transfer Protocol (TFTP)
Run tftp server (pumkin on tftpd) Ensure tftp server is listening ping 192.168.74.129 Backup (fr...
tftp on MacOS v26 (Tahoe) [CANCELLED]
preface tftp was depreciated from macOS. lesson (might be useful) Check is it available ls /usr/l...
Icinga2 agent on Debian13 (trixie)
(On Raspberry PI) apt install \ icinga2 \ monitoring-plugins \ monitoring-plugins-bas...
Raspberry PI Connect
CLI only (without graphics) Install PAM agent sudo apt install rpi-connect-lite Enable PAM agent...
Obtain and activate free 3DES-AES license for Cisco ASA5505 from Cisco?
Get free license from Cisco Proceed with normal registration to get Cisco ID. https://software.ci...
Encryption
Enable encryption app (functionality) sudo -u www-data php /var/www/nextcloud/occ app:enable encr...
2025-09-19 - Summer hurries not over yet
Closed cloud perimeter for direct SSH access, adjusted firewall policies. Mail client to suppo...
2025-07-26 - here and there
Deployed PAM solution: goTeleport Garmin Boating (former Navionics) on Android tablet for a week...