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Category: Configurations (Linux)

Install PHP 7.4 / 7.3 / 7.2 / 7.1 on Debian 10 / Debian 9

Rumi, October 26, 2020October 26, 2020

Add PHP Repository SURY, a third-party repository which offers PHP 7.4 / 7.3 / 7.2 / 7.1 for Debian operating system. By default, Debian 10 ships PHP v7.3. So, you can either install PHP v7.3 from Debian repository or SURY repository. Skip this section if you want to install PHP…

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Multiple or Two Default Gateways on One System

Rumi, October 26, 2020

Problem Description You have built two or more network cards into one Linux system and each of these cards has its own default gateway. By default, you can only have one default gateway on a system. The case described would lead to asynchronous routing, whereby the router would reject the…

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Install LAMP on CentOS 7 with PHP 5.4/7.0/7.1/7.2/7.3/7.4

Rumi, October 26, 2020

Preliminary Note In this tutorial, I use the hostname server1.example.com with the IP p 192.168.0.100. These settings might differ for you, so you have to replace them where appropriate. I will add the EPEL repo here to install latest phpMyAdmin as follows: rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY* yum -y install epel-release To edit files on…

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Add Static Route on specific interface from Windows OS

Rumi, October 6, 2020

Find out the Interface ID on which you need to apply your static route- netsh interface ipv4 show interfaces It’ll look something similar below-  And now apply your static route- route add 172.16.222.0 mask 255.255.255.0 172.16.221.193 IF 20  

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Permanently add Static Route in Linux

Rumi, September 4, 2020September 4, 2020

Static routing is the process of manually entering the routes to the routing table to reach a particular destination. Basically two commands are used in Linux to add routes. The first command is the old traditional route add and second is the IP route command. Earlier we learned how to…

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Add Geolocation to Graylog 2

Rumi, August 16, 2020

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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Installation Bashtop an upgraded CLI system reporting interface from Top or Htop

Rumi, August 15, 2020

Install Bashtop Resource Monitor on Ubuntu You can use PPA repository for Ubuntu Linux installations: sudo add-apt-repository ppa:bashtop-monitor/bashtop sudo apt update sudo apt install bashtop Install Bashtop Resource Monitor on Debian For Debian and its based distributions, used the commands below:

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Revoking Lets Encrypt Certificate properly

Rumi, August 14, 2020

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, August 14, 2020

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, August 13, 2020

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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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Savvyfrom Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & PKI Naitonal Root and CA Infrastructure. Also engaged with several Offshore Software Development Team.

Worked with Orascom Telecom-Banglalink, Network Elites as VAS partner, BTRC, BTT (Turkey) , Mango Teleservices Limited and Access to Informaiton (A2I-UNDP)

Currently working at Oracle Corporation as Principal Technology Solution and Cloud Architect.

You can reach me [h.t.emdad at gmail.com] and I will be delighted to exchange my views.

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