Alauddin Maulana Hirzan

I am a Lecturer in a University. Loved IoT, Python programming, and Network.

Public Key

npub1n7e7fqjs7vt3wr42p8p75l2m6chhc6u6maah9s00smmgeanzsc8sjkv442

NIP-05 Address

Profile Code

nprofile1qqsflvlysfg0x9chp64qnsl204davtmudwdd77mjc8hcda5v7e3gvrcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds6z2x6t

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relay.damus.io

nos.lol

Author Public Key

npub1n7e7fqjs7vt3wr42p8p75l2m6chhc6u6maah9s00smmgeanzsc8sjkv442

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Last Notes

2024-06-20 10:48:55

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@npub1qw7…q0ue I prefer python since I write a program for machine learning and embedded boards.

2024-06-20 05:34:31

As a Laptop user, battery life is important. So, I found a good script to test whether my laptop needs a new battery. The result? 47% left 😭
https://www.cyberciti.biz/faq/freebsd-finding-out-battery-life-state-on-laptop/

2024-06-17 23:10:31

Yesterday I created a simple script to benchmark CPU's instruction execution speed with Python. I should not have use numpy since this library degraded the MIPS result a lot.
Another run for fun small Python program to benchmark your CPU's instruction speed (MIPS) is here. Just run (no dependency at all!) and enjoy the result.
https://brew.bsd.cafe/maulanahirzan/Python-Useful-Scripts/src/branch/main/MIPS-Benchmark
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/634/007/013/317/735/original/0745ed55c255e7c1.png

2024-06-16 10:11:23

Creative sunday, I am trying to create simple CPU benchmark with matrix calculation (inspired by Linpack HPL benchmark). The script is relatively simple and easy to adjust. Just run and get your result. (The result might not accurate, please use it for fun only 😜 ).
image : Above RPI3B+, Below Thinkpad E480
https://brew.bsd.cafe/maulanahirzan/Python-Useful-Scripts/src/branch/main/Matrix-based%20Benchmark
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/625/321/041/498/419/original/962a2fa9b0632e8d.png

2024-06-13 11:08:53

one thing from my 'want to create' list is a Beowulf Cluster. I have created one with the default operating system. But now, I created a simple cluster with FreeBSD. OpenMPI v5.0.3 and MPI4Py Lib were compiled manually.
Note: For some reason High Performance Linpack (HPL) benchmark is failed to run in the one of the processes.
#freebsd #aarch64 #beowulf #cluster
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/608/522/869/460/354/original/277ae74dab3d4d72.png

2024-06-10 08:33:22

updating RPis with 1GB memory was harsh. But it was fun to do. #freebsd #raspberrypi #aarch64
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/590/926/348/675/773/original/6759d19382329f32.png

2024-06-09 11:22:55

Ansible and FreeBSD Jails. Thanks to @npub1qw7…q0ue for the inspirations.
#freebsd #jail #ansible
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/585/927/285/933/337/original/4944488bcb8e2c3c.png

2024-06-08 10:01:48

if it is fit, then I fit #caturday
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/579/949/032/337/403/original/465b513c4b486b2e.jpeg

2024-06-06 09:20:01

There reason why my bhyve guest running slow: vm-bhyve runs the vm with its default cpu configuration (which is 2 cores) and e1000. Read, edit and test are the best way to tune up things. #vmbhyve #bhyve

2024-06-05 15:30:23

the coolest thing I ever experience using FreeBSD and ZFS is Boot Environment.

2024-06-05 07:46:37

my bhyve guest will not connect to internet if the host does not have connectivity through ethernet. I wonder if i can make Host-to-Guest connection via epair? I need samba to access some documents.

2024-06-04 10:57:50

bhyve run normally now, good bye virtualbox #bhyve #freebsd
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/557/519/244/364/895/original/620b5497c46fae58.png

2024-06-04 08:48:30

Two FreeBSDs for all purposes. NetBSD cannot boot in my HP, so I switched to FreeBSD. RTL8821CE is not doing well, I will change the card sooner or later. For now, a usb dongle will do the job. #FreeBSD
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/556/999/724/237/943/original/39822738f12587b9.jpeg

2024-06-03 11:55:18

my HP laptop with RTL8821CE is supported I guess?
https://www.freshports.org/net/wifi-firmware-rtw88-kmod/
#FreeBSD

2024-06-02 10:44:34

my first cat. loves to snuck and knead bread. He is in heaven right now. #caturday
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/546/137/167/843/775/original/482a4db58e556512.jpg

2024-05-30 07:59:13

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@npub1t7d…pqpp I am so grateful with the presentation.

2024-05-30 07:53:08

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@npub1t7d…pqpp I guess I missed that. I will subs the channel

2024-05-30 07:48:54

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@npub1t7d…pqpp I wish I can join the meeting, but it will be midnight in my timezone 😉 . I am so curious what happened inside the meeting.😆

2024-05-30 07:41:20

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@npub1t7d…pqpp wow, this quite easy to follow. Thank you for the guide

2024-05-30 07:34:50

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@npub1t7d…pqpp ooh that's nice

2024-05-30 04:47:28

External ZFS snapshot, is it possible or not? I am thinking to create external backup for system. #FreeBSD #zfs

2024-05-30 03:27:19

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@npub1t7d…pqpp I need this setup for sure 😁

2024-05-29 04:11:03

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@npub1mmr…ql8w FreeBSD saya sudah stop pakai Linux

2024-05-29 04:03:16

Telegram Desktop still crashes when I start screen sharing. Fortunately, manipulating the User Agent in Firefox allows screen sharing to work well in Web Telegram. My teaching time got delayed 😂

2024-05-28 08:57:35

I feel alive again after 1 week away from FreeBSD
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/517/411/547/821/136/original/be269b434132a1a5.png

2024-05-26 13:12:13

#caturday another daughter from mommy cat. fluffy fur
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/507/079/538/676/084/original/c3d13887277e3363.jpg

2024-05-26 11:48:31

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@npub1t7d…pqpp fun fact: I hosted my VPS in Germany because of cheapest price I can found. The delay from my place is around 300ms. Round trip to Pis 600ms 🤣

2024-05-26 10:42:55

BSDonPis are now accessible through Wireguard anywhere. BSD on Net Simulation connected to Internet properly through FreeBSD Router. Thanks to FreeBSD Handbook. Now, time to roll
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/506/490/547/407/927/original/dd4a767db0b2d77f.png
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/506/500/671/373/632/original/25b88353514cfe6e.png

2024-05-26 08:44:15

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@npub1t7d…pqpp yes, ReST API works well. It is fun to play with API sometimes.

2024-05-26 08:40:07

API Test

2024-05-23 15:45:33

Since I cannot touch my BSDonPis remotely, now I am deploying multiple BSDs for Network Simulation. Might be useful for gathering intrusion samples later.
Notes: Trying to install OpenBSD but my ISO got corrupted?

2024-05-22 12:25:51

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@npub1t7d…pqpp yes, they behind nat. I forgot to put KeepAlive there

2024-05-22 12:18:27

Testing Wireguard for my small BSDs. Succesfully two-way communication through WG. But for some reason the connection dropped when no activity left. I forgot to add PersistentKeepAlive opt.

2024-05-21 08:46:50

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@npub1t7d…pqpp When idling, FreeBSD does not consume that much memory. But I am going to test it with several programs. For now, I am curious about its cluster computing performance.

2024-05-21 07:02:55

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@npub1mmr…ql8w macam-macam, tergantung kodingnya bagaimana. bisa buat traning Jaringan Syaraf Tiruan paralel.

2024-05-21 07:01:44

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@npub1mmr…ql8w sudah bisa buat cluster kalau pake RPiOS tapi belum pernah pakai FreeBSD

2024-05-21 06:55:03

I am a bit sad because of my Thinkpad, but I successfully deployed FreeBSD to 5 Pis. Might share config.txt for HDMI display output.
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/477/291/164/318/675/original/3c05d535758ef4b4.png

2024-05-20 13:14:39

I think I will deploy FreeBSD to my RPi cluster while waiting for my Thinkpad.

2024-05-18 04:48:32

An old photo of my beloved cat. Thinking something.
#Caturday
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/459/806/430/875/449/original/832ccf0e539b21ca.png

2024-05-17 16:58:11

Should I use UFS or ZFS on desktop installation? For some reasons, ZFS piqued my interest.

2024-05-16 07:22:02

I guess pf and tshark (or wireshark) cannot work together. Enabling pf service slows down tshark startup.
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/449/088/121/659/564/original/c215b31420f7a2d9.mp4

2024-05-15 07:23:03

my current struggle is bhyve. for some reason, vnc viewer will not let me connect to cbsd bhyve. maybe manual boot will work?

2024-05-14 00:58:54

Playing with Jails is fun. So I created zsh functions to make it easier to control with simple wrapper. (require cbsd as base)
https://brew.bsd.cafe/maulanahirzan/zsh-funcs

2024-05-11 15:44:23

the oldest cat member in my family. The momma cat is already 5 years with us now. #Caturday
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/422/741/966/624/219/original/e89a6d4d7943b743.jpg

2024-05-11 15:30:47

succesfully deployed a jail with Internet access. Now I can do anything without breaking the main system 😉
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/422/682/449/822/191/original/f1f7627b931b2047.png

2024-05-11 09:43:12

wow, cbsd is easy to use.
https://www.bsdstore.ru/en/tutorial-jail.html

2024-05-09 14:56:34

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@npub1t7d…pqpp thank you! creating a comfortable environment is important 😀

2024-05-09 14:50:23

my current FreeBSD desktop. made some supporting applets for better controls
https://bsdcafemedia01.server-gestiti.it/bsdmmedia01/media_attachments/files/112/411/213/201/647/237/original/1848b3b0ee747e22.png