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Category: Administrations

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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Remove Node from Proxmox Cluster

Rumi, September 9, 2020

Step 1 : Migrate all VMs to another active node Migrate all VMs to another active node. You can use the live migration feature if you have a shared storage or offline migration if you only have local storage. Step 2 : Display all active nodes Display all active nodes in…

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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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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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Install Mysql Client on Debian 10 (Buster)

Rumi, August 6, 2020

Debian stopped packaging mysql-client as of buster. You can use apt-get install default-mysql-client Which will install mariadb-client-10.3. MariaDB is a fork of MySQL. The client can still be started with the command mysql.

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Install webssh on Debian

Rumi, August 6, 2020August 7, 2020

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, August 6, 2020

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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Download YouTube Videos in Linux Command Line

Rumi, August 3, 2020

Install youtube-dl to download YouTube videos in Linux terminal youtube-dl is a Python-based small command-line tool that allows downloading videos from YouTube, Dailymotion, Photobucket, Facebook, Yahoo, Metacafe, Depositfiles and few more similar sites. It is written in pygtk and requires Python interpreter to run this program, it’s not platform restricted. It…

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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Computing and Public Key Infrastructure Savvy from Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & Naitonal PKI Root and Enterprise 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) and at Oracle Corporation as Principal Technology Solution (Cloud) Architect.

And currently being employed at Huawei Technologies (Bangladesh) Ltd. as Advanced Business Development Lead (Cloud) in the south asia region.

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

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Apache Bind Cacti CentOS CentOS 6 CentOS 7 Debain Debian Debian 10 Debian 11 Debian 12 DKIM Docker icinga iptables Jitsi LAMP Letsencrypt Linux Munin MySQL Nagios Nextcloud NFS nginx Openfiler pfsense php Postfix Proxmox RDP Softether SSH SSL Ubuntu Ubuntu 16 Ubuntu 18 Ubuntu 20 Varnish virtualbox vpn Webmin Windows 10 XCP-NG zimbra

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