Kasraeian

vWorld v.3

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SSH & 2FA on Linux

There are multiple ways to make an SSH connection more secure and one of them is adding “Two Factor Authentication (2FA)” to the system and integrate it with ssh connectivity. Here the steps that could help with adding this feature to the system and its integration. This feature could be added to a different distribution […]

Updated: April 15, 2018 — 8:33 PM

Some of Docker commands

When Docker engine installed, there are multiple commands comes with it in order to let one work with images in different ways. Here I’m listing few commands and how to use them. 1. docker pull It’s possible to just download the image from a registry for deploying in future by just running the “docker pull […]

Updated: April 3, 2018 — 12:07 PM

Docker on Ubuntu

As I said before, I’ve selected Docker for using containers. For OS, I’ve selected Ubuntu Server 17.10 and for using containers the engine should be installed and then one proceeds. System preparation & Docker installation First thing first, the system should be prepared for engine installation and this preparation includes the OS update & prerequisite installation; […]

Updated: April 2, 2018 — 11:48 PM

Starting with Dockers

After a long time of not writing, I decided to start again with new things. The “Containers”, you might be heard of it or even implemented it in large scale; as I’m new to this technology, I’d try to share things I’m learning about it here. First migration was from “All Application running directly on Physical […]

Updated: April 2, 2018 — 11:48 PM

POST Error: 312-HPE Smart Storage Battery 1 Failure

Recently we’ve bought 30 HP DL380 Gen9 servers and during ATP each time we get “POST Error: 312-HPE Smart Storage Battery 1 Failure” on different servers. We checked for solution and we found this link on HPE site which referred to this known issue.

Updated: December 12, 2016 — 1:36 PM

File Check (md5/sha1) under Microsoft Windows

When downloading file from internet or other system, network or removable devices in some case before using them files should be evaluated for health and integrity (assuming the source file is acceptable and working fine). Under different OS this activity could be different for example under Linux it’s possible to use “md5sum” command to evaluate […]

Updated: November 24, 2016 — 8:04 PM

HP C7000 OA password reset

If one have HP C7000 OA which he/she forgot its password and still have physical access to it, it’s possible to reset the password to original one using one simple file and one USB flash drive; for doing so here are the steps. Create a file like “FILENAME.CFG” with one of below mention content or […]

Updated: November 21, 2016 — 1:05 AM

HP iLO firmware update

As part of my project, I got access to multiple “HP DL380 G7” & “HP DL580 G7″ servers in employer site which some had one connected NIC and some three but none of their “Integrated Lights-Out (iLO) port” were connected and used. “iLO” ports are generally would be used for “Out Of Band Management (OOBM)” […]

Updated: November 24, 2016 — 8:04 PM

Ubuntu 14.04 LTS

It’s began with an email for seminar invitation; In that email, there was note on the Ubuntu 14.04 LTS and as I’m already using 14.04 Beta on few VMs, I looked for LTS and found out it would be available around March 17th and there were two commands for 13.10 users who wants to update […]

Updated: November 24, 2016 — 8:05 PM
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