Create a quarter round in OpenSCAD
rotate_extrude(angle=90) square([diameter/2,height]); Around the edge of the cylinder : rotate_extrude(angle=90) offset(r=2, $fn=16) offset(r=-2) square([diameter/2,height]);
Continue reading →SEEI
Using nmap to check a certificate on a web server
user@desktop:~$ nmap -p 443 –script ssl-cert microsoft.com Starting Nmap 7.92 ( https://nmap.org ) at 2025-11-16 07:02 EST Nmap scan report for microsoft.com (13.107.213.41) Host is up (0.040s latency). Other addresses for microsoft.com (not scanned): 2603:1020:201:10::10f 2603:1010:3:3::5b 2603:1030:b:3::152 2603:1030:20e:3::23c 2603:1030:c02:8::14 … Continue reading →
Use openssl to generate a csr for a certificate
Create a certificate signing request and a certificate key for server1.fubar.com where: Company name: Fubar Corporation City: Podunk State: Alabama Division of the Company: Network Administration openssl req -new -newkey rsa:2048 -nodes -keyout server1.fubar.com.key -out server1.fubar.com.csr \ -subj “/C=US/ST=Alabama/L=Podunk/O=Fubar Corporation/OU=Network … Continue reading →
3d Printer Filament Density
The length of a 1 kg spool of 1.75 mm diameter filament depends on the material’s density. For PLA, which has a density of approximately 1.25 g/cm³, a 1 kg spool contains about 330 meters of filament. For ABS, with … Continue reading →
Ubiquiti Controller and pfSense / netgate
If you are using the DHCP server on pfSense / netgate and Ubiquiti wireless access points – and the Ubiquiti controller is on a separate subnet from the access points, you will need to set up DHCP Option 43 on … Continue reading →
Reboot Microtik router
To use the command prompt, click on New Terminal and run the below command. /system reboot reference: https://fastbikri.com/blog/reboot-a-mikrotik-router/
Continue reading →Find largest files on disk drive
Want to quickly find the largest files eating up your disk? $ du -ah / | sort -rh | head -n 10 Shows top 10 biggest files/folders from root.
Continue reading →Octo Print and Sony Playstation Eye Camera
If you are trying to use a Sony Playstation Eye Camera on your octo print and it is not working, first – ssh (or pull up the local console) and execute: lsusb and you should see Bus 001 Device 036: … Continue reading →
DNS Tests
dnsenum to install on Fedora sudo dns -y install dnsenum
Continue reading →Cannot use scp to copy a file to Juniper
Fix: set system services ssh sftp-server
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