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Disk Utility

MegaCLI CheatSheet (2)

Feri Setyawan - August 11, 2021

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Proxmox 5x “e1000 driver hang” fix

Feri Setyawan - March 18, 2021

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How To Fix “Device eth0 does not seem to be present, delaying initialization” Error on Centos

Feri Setyawan - February 24, 2021

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Create Blocking Bad Bots Through Apache in WHM/cPanel

Feri Setyawan - February 4, 2021

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Tools for load-testing HTTP servers

Feri Setyawan - January 21, 2021

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Set Up Routing with ip Command in Linux

Feri Setyawan - December 14, 2020 0

Can you explain the ip command to setup routing on Linux based systems? How do I use the ip command to configure the routing...

Database

How to Kill MySQL Queries

Feri Setyawan - October 28, 2020 0

MySQL queries can sometimes be long-running and may prevent transactions from accessing necessary tables to complete a...

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How to Fix Moodle error backup_controller_dbops_nonexisting

Feri Setyawan - July 24, 2020 0

This error occurs when you duplicate an activity or import activities. I recently implemented...

Disk Utility

How to fix Ceph error states “oldest is osd_failure(failed timeout osd.xx)

Feri Setyawan - July 9, 2020 0

Hi, If your Ceph cluster encounters a slow/blocked operation it will log it and set the cluster health into...

How to

Monitor site to site tunneling health for Cisco ASA using Zabbix

Feri Setyawan - July 3, 2020 0

Requirement : - Zabbix server ( Zabbix 2.4 in this post)- Cisco ASA with tunnel site to site configured-...

Database

How to Backup view and events only in MariaDB/MySQL

Feri Setyawan - June 11, 2020 0

As a part of a migration, We need to export MySQL events from a MariaDB 10.2 and import them to another MariaDB...

How to

How to Resize tmpfs on Linux

Feri Setyawan - March 31, 2020 0

tmpfs is a temporary file system that stores data in virtual. It does not create an file or directory on your hard...

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Proxmox 6.0 Bug, hung kernel and how to fix it.

Feri Setyawan - March 30, 2020 0

We have been running Proxmox 6.0 in some servers and after a few weeks, they were having a hung issue. one-by-one all...

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Delete OLD data from Zabbix database

Feri Setyawan - March 24, 2020 0

If you are using Zabbix for a long time, then you might notice that the database size of Zabbix is increasing every day. Then...

Database

Unable to start MySQL on Ubuntu: AVC apparmor=”DENIED” operation=”open”

Feri Setyawan - March 24, 2020 0

MySQL on Ubuntu fails to start. The following error messages are shown in the output of the journalctl -xecommand: AVC...

Disk Utility

Converting between image formats

Feri Setyawan - March 24, 2020 0

qemu-img convert: raw, qcow2, qed, vdi, vmdk, vhd The qemu-img convert command can do conversion between multiple formats, including qcow2, qed, raw, vdi, vhd, and vmdk.

Database

Migrate MyISAM tables to INNODB using mysqldump

Feri Setyawan - March 24, 2020 0

In this article you will find information how to convert MyISAM tables to INNODB. The procedure here is an...

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MegaCLI CheatSheet (2)

Proxmox 5x “e1000 driver hang” fix

How To Fix “Device eth0 does not seem to be present, delaying initialization” Error on Centos

Create Blocking Bad Bots Through Apache in WHM/cPanel

Tools for load-testing HTTP servers

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MegaCLI CheatSheet (2)

SSH Issue no kex alg

MegaCLI CheatSheet

Proxmox 5x “e1000 driver hang” fix

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