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Category: Administrations

Convert Xen XVA to KVM

Rumi, August 23, 2023

Citrix Xen uses a custom virtual appliance format for import/export called “XVA”. it’s basically a strangely crafted tar-file. You don’t need this program to unpack this tar-file, just use your favourite tar unpacker (tar, gtar, bsdtar). Once unpacked you will end up with a lot of different files, ova.xml (which…

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Debian 8 (Jessie) repo updated-2023

Rumi, August 23, 2023

This worked for Debian 8 (Jessie) replace original /etc/sources.list with: deb http://archive.debian.org/debian/ jessie main non-free contrib deb-src http://archive.debian.org/debian/ jessie main non-free contrib deb http://archive.debian.org/debian-security/ jessie/updates main non-free contrib deb-src http://archive.debian.org/debian-security/ jessie/updates main non-free contribapt-update It will give a keyring error. I tried both:

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XOA on XCP-NG import and install

Rumi, August 23, 2023

Start a new SSH session to your XenServer host and run the commands below. ### Using curl ### [18:18 xcp-node-01 ~]# bash -c “$(curl -sS https://xoa.io/deploy)” ### Using wget ### [18:18 xcp-node-01 ~]# bash -c “$(wget -qO- https://xoa.io/deploy)” If you are using an old XenServer version, you may encounter SSL…

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Install transmission on Centos 7

Rumi, August 22, 2023

Step 1. First, you need to enable the EPEL repository on your system. yum install epel-release yum -y update Step 2. Installing Transmission on CentOS 7. Just run the following command to install Transmission: yum install transmission-cli transmission-common transmission-daemon Once complete, you can verify Transmission is installed by running the…

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Install Proxmox 7 on Debian 12

Rumi, August 9, 2023

Install a standard Debian Bookworm, for details consider the Debian installation guide, and configure a static IP. Note: The Debian installer performs network configuration by IPv6 autoconfiguration and DHCP by default, if available. To force manual network configuration in the UEFI installer, press E and add netcfg/disable_autoconfig=true to the linux command line. For the…

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Fixing Proxmox Delete user failed: cannot update tfa config, following nodes are not up to date:

Rumi, August 2, 2023

Please check if all the nodes are on the same package versions: run pveversion -v and compare the outputs. If they’re not matching, you can run apt update && apt dist-upgrade To upgrade the nodes. if there’s a kernel upgrade you will also need to reboot the machines. If after…

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Fixing Yum Update on Centos 8 Stream Error: Failed to download metadata for repo ‘AppStream’: Cannot prepare internal mirrorlist: No URLs in mirrorlist

Rumi, July 24, 2023

I had installed a minimalist CentOS 8 on one of my servers. Installation went successful, however, when I tried to update the system using yum update I see this error message: Failed to download metadata for repo. Below is the complete error. [root@autocontroller ~]# yum update CentOS-8 – AppStream 70 B/s |…

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Adding NextCloud as a Windows Drive using Rclone

Rumi, July 13, 2023

Pretty Straightforward- rclone config choose “n” for “New remote” choose name for Nextcloud –> rshare (or any name you want to keep as rclone config name) choose “Type of Storage” –> Webdav provide Nextcloud URL for webdav access –> https://<nextclouddomain>/remote.php/dav/uploads/<user>/ choose Vendor –> Nextcloud specify “user” –> (see `<user>` in…

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Set up your site-to-site VPN with Access Server using OpenVPN

Rumi, July 9, 2023

Allow access to private subnets Sign in to the Admin Web UI for your Access Server. Click Configuration > VPN Settings. Under Routing, and Should VPN clients have access to private subnets (non-public networks on the server side)?, click Yes, using Routing. Click Specify the private subnets to which all…

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Setting up a PPPoE server on Linux CentOS 7

Rumi, July 8, 2023

Method-1 Build PPPoE, success, I think the TM super simple, in CentOS is about 5 steps can be done 1, install PPPoE, after the installation is complete, there will be pppoe-server command Yum Install Rp-pppoe 2, after the installation is completed, will be in the/ETC/PPP directory generated pppoe-server-options files, the…

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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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