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FreeBSD Virtualization Reference

This is a reference on how to realise virtualization on FreeBSD

Virtualization

• FreeBSD Handbook

Bhyve

• Github
• FreeBSD Official Documentation
• FreeBSD Foundation

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Cangjie Reference

Word Reference

• IfreeSite
• 倉頡字典
• HKCards
• 熟记巧背_倉頡輸入法.pdf

Tutorial

• CANGJIE TYPING TUTOR

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# start as root user
sudo su
# download and install libldap-2.5-0
curl -O http://debian.mirror.ac.za/debian/pool/main/o/openldap/libldap-2.5-0_2.5.13+dfsg-5_amd64.deb
dpkg -i libldap-2.5-0_2.5.13+dfsg-5_amd64.deb

# download and install libldap-dev
curl -O http://debian.mirror.ac.za/debian/pool/main/o/openldap/libldap-dev_2.5.13+dfsg-5_amd64.deb
dpkg -i libldap-dev_2.5.13+dfsg-5_amd64.deb

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Spin Wheels Examples

1. Shinerweb
2. Crazytim Example
3. Code with Random
4. Olimorris
5. Codepen - QPRGwK
6. medium.com - @codewithashutosh

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• https://www.imagescape.com/blog/multipage-forms-django/
• https://www.anythingpython.com/2022/12/21/django_multistepform/
• https://medium.com/@rts_16853/complete-example-of-django-multi-step-form-with-dynamic-form-choices-36dc1e9a2f48

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Github Actions with EC2 using SSH

Check this out on Dev.to

Configure SSH into aws ec2

• How to handle SSH keys with ec2-github actions https://zellwk.com/blog/github-actions-deploy/

Declare these git secrets

• SSH_PRIVATE_KEY
• HOST_NAME / IP_ADDRESS

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# Set up Postgres
[DigitalOcean Guide for Ubuntu](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-22-04)

# Set up Password
```bash
postgres=# select passwd from pg_shadow where usename='username';
passwd
--------------
md5...

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Questions are not from any actual exam!!!  



Q:  Create a job that calculates pi to 2000 decimal points using the container with the image named perl
and the following commands issued to the container:  ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
Once the job has completed, check the logs to and export the result to pi-result.txt.

Solution:

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# Create Static Ip on master and worker's nodes
1. sudo nano /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
2. Enter in /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
network: {config: disabled}
3. sudo nano /etc/netplan/01-netcfg.yaml
4. Enter in /etc/netplan/01-netcfg.yaml
network:
  version: 2
  renderer: networkd
  ethernets:

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public class Calendar {

    public static int getDayOfWeek(int day, int month, int year) {

        int monthTemp = (14 - month) / 12;
        
        int y0 = year - monthTemp;
        int x = y0 + (y0 / 4) - (y0 / 100) + (y0 / 400);
        
        int m0 = month + (12 * monthTemp) - 2;