One of my costumers have a production environment in GCP. We helped them to migrate from on premises to GCP. We have setup the automated backup for their Cloud SQL for mysql 5.7 instances. Since the cloud sql backup using…
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Mariadb 10.4.X Memory Leak Issue
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…
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Replacing ZFS Raid disk Proxmox
This is the procedure on how to replace broken disk from zfs raid array. In this case we simulate to replace zfs raid-1. sgdisk -R /dev/sdb /dev/sda [newdisk – existing disk] sgdisk -G /dev/sdb to regenerate zpool replace rpool /dev/sdb2…
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Linux backup using Rsync
This time is about using rsync to copy a Linux/Unix system to another host or backing it up. By using rsync, its more effective than using tool like dd since we can efficiently select the directory, attribute that we we want to…
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Postifx Command Cheatsheet
List of helpfull command that used to help me when maintaining Postfix mailserver. Hemat Pangkal Kaya Insignificant one List mail queue and MAIL_ID’s, list mail queuepostqueue -pmailq Check the postfix versionpostconf mail_version Get default value set on the postfix configpostconf…