Author: Rumi

Hasan T. Emdad is an ICT Solution Architect, Project Manager with 12+ year expertise in HW selection, OS expertise on Linux and MS, Supervising Application SW on Pearl, Java, dot Net and PHP with DB experience of MySQL, Postgre, MS and Oracle. He was involved in setting up several Turn Key ICT including Telecom based projects on various government and autonomous bodies in the country. Developed more than 50 applications running with different operators and users. Managing a team of more than 10 in-house engineers and developers and manages an outsourcing team experts and contributors. Very recently engineered Public Key Infrastructure (PKI) on Enterperise and Root Certifying Authority and deployed scalable Cloud Computing and Managed Services. He has post graduated (MBA) from University of Dhaka, Bangladesh.

WordPress Backup Script

Rumi,

#!/bin/bash # This script creates a compressed backup archive of the given directory and the given MySQL table. More details on implementation here: https://theme.fm # Feel free to use this script wherever you want, however you want. We produce open source, GPLv2 licensed stuff. # Author: Konstantin Kovshenin exclusively for…

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Add Geolocation to Graylog 2

Rumi,

The Graylog Map Widget is the plugin providing geolocation capabilities to Graylog. The plugin is compatible with Graylog 2.0.0 and higher, and it is installed by default, although some configuration is still required on your side. This section explains how to configure the plugin in detail. In case you need to reinstall the…

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Revoking Lets Encrypt Certificate properly

Rumi,

When you want to learn how to revoke Let’s Encrypt SSL/TLS certificates, follow the steps below: Step 1: Validate Certificate file Before you revoke a certificate, you’ll want to validate that the correct certificates and key file you’re revoking.. since there is no reversal.. Once a certificate is revoked, it…

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Fix Proxmox (PVE) “can’t lock file ‘/var/lock/qemu-server/lock-xxx.conf’ – got timeout” (Proxmox can’t shutdown/stop virtual machine) (Proxmox kill/force stop virtual machine)

Rumi,

The Issue When trying to “Stop” or “Shutdown” virtual machine from Proxmox (PVE) web gui, the “Cluster log” shows end task UPID:pve:xxxxxxxx:xxxxxxxx:xxxxxxx:qmstop:xxx:root@pam: can’t lock file ‘/var/lock/qemu-server/lock-xxx.conf’ -got timeout end task UPID:pve:xxxxxxxx:xxxxxxxx:xxxxxxx:qmreboot:xxx:root@pam: VM quit/powerdown failed The Fix We can manually delete the lock from following path /run/lock/qemu-server # The file will…

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Easyengine installaiton on Debian 10

Rumi,

Install Easyengine WordPress on a Debian 10 VM (mine was a KVM). The following procedure will install EE with following components; Docker WordPress Core MariaDB Nginx Server PHP-FPM Redis Cache Let’s encrypt SSL Install EasyEngine on Linux wget -qO ee rt.cx/ee4 && sudo bash ee ee site create your_domain –type=wp…

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Install webssh on Debian

Rumi,

You need to have PIP installed on your debian system. Check if it’s already installed, if not, install one of the available edition. My setup included Debain 10 (buster) PIP 3 Installing pip for Python 3 Perform the following steps as a user with sudo privileges to install Pip for Python 3…

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List prosody users on Jitsi VB

Rumi,

For administration thoughts, i wonder if there is a command, prosodyctl or other, which can give a list of user registrered on prosody. Apparently there is a way-  just look into your /var/lib/prosody/[domain]/accounts Folder and type in “ls” then count thr .dat files

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