Recently, I’ve helped customer to migrate their service from single VM to 1 vm per-service. I am able to manage minimum downtime when migrating the web data and database data to each VM. All VM using latest OS and latest…
Zfs Raid-1 Disk Replacement Proxmox
This is the procedure on how to replace broken disk from zfs raid-1 array. In this case we simulate to replace zfs raid-1. Check zfs pool status #zfs status -v Get the disk information and replaced it (Let’s say that…
Linux backup using Rsync (Updated)
This time is about using rsync to copy a Linux/Unix system to another host or perform full system backup. By using rsync, its more effective than using tool like dd since we can efficiently select the directory, attribute that we we want…
Postifx Command Cheatsheet
List of helpfull command that used to help me when maintaining Postfix mailserver. I can put many things to my head so i create this cheatsheet to help me with postfix administration. Hemat Pangkal Kaya Insignificant one List mail queue…
Passing LFCS Exam (Re-write)
This December 2019, i have passed the Linux Foundation Certified System (LFCS) Administrator exam. This exam is provided by Linux Foundation Organization. An organization to maintain the open source ecosistem by provide an event, training and certification. Twitter serve 140…