This is the openssl command line showing how create a self signed cert with multiple hostnames and IP address. Add the cert to your computers certificate rust store so your browser connects without security warnings. openssl req -x509 -newkey rsa:4096 -keyout...
IT Tips
Synology DSM missing generate Self Signed Cert – Work-a-round
Just tried to generate a self-signed SSL cert for my Synology DSM and the option is missing Command to generate a self-signed cert to the Synology DSM On WSL or Linux generate a self-signed cert as follows. openssl req -x509 -newkey rsa:4096 -keyout...
Cisco SFP’s found in my IT Junk Drawer
SFP-10-LR-S x 4
Don’t try to book a flight using the Brave Browser on Jetstar.com when Shields are up
Note to self If trying to book a flight on jetstar.com using Brave as your browser remember to turn off Brave Shields or you wont be able to complete the payment section of the checkout Click the Brave Icon Toggle the Shield to DOWN, reload the page, re-enter Credit...
Run a command every 2 minutes Monday to Friday SystemD OnCalendar Snippet in a Specific Timezone
Just tried to check an OnCalendar snippet based on syntax mentioned on another website and it errored out systemd-analyze calendar 'Mon..Fri *-*-* *:*/2:00 Australia/Sydney' Failed to parse calendar specification 'Mon..Fri *-*-* *:*/2:00 Australia/Sydney': Invalid...
Add a SystemD Service to Run as a User at 4:30PM Australia/Sydney time when the server is set to UTC
I have a server set to the UTC time zone. It is running near Sydney and reports are sent to east coast users every day at 4:30PM When I add a cron job I have to convert from Australia/Sydney time and specify the runtime in UTC time. When daylight savings takes effect...
System Time UTC convert a local time to its UTC time
My system time is UTC and I want to convert from localtime Australia/Sydney to UTC date -u -d 'TZ="Australia/Sydney" 4:30PM' # output Tue 14 Oct 2025 05:30:00 UTC Getting the system timezone timedatectl status Local time: Tue 2025-10-14 07:24:24 UTC Universal time:...
Comprehending Netgate 1100 – Ports and VLAN’s
https://youtu.be/Bp_B79-WLlU?si=gEUiclgOElihCyGu Watch the above This image helps me visualise what is happening when VLANs are configured. Members map to the physical port numbers as follows. Switch Port numbers are listed under Interfaces / Switch / Ports 0 for the...
Identifying the physical drives in Unifi ENVR log messages
This post shows how to: View SATA drive information in Unifi Protect ENVR console or via command line (SSH console) map ataXX device to sdX device (e.g. ata15 to sdc) map sdX to device serial number (e.g. sdc = WD-SERIAL03) Use Unifi Protect Control Panel to map the...
Script to run the MacOS Built-in DHCP Server
For info on how to configure http://www.jacquesf.com/2011/04/mac-os-x-dhcp-server/ DHCP Server Start Stop Script #!/bin/bash # /usr/local/bin/dhcpmgmt.sh function start { sudo /bin/launchctl load -w /System/Library/LaunchDaemons/bootps.plist } function stop { sudo...
