Kasraeian

vWorld v.3

How to check for “VMSA-2018-0025”

On “2018-10-09” VMware announced a new security advisory “VMSA-2018-0025“. VMware ESXi, Workstation and Fusion contain a denial-of-service vulnerability due to an infinite loop in a 3D-rendering shader. Successfully exploiting this issue may allow an attacker with normal user privileges in the guest to make the VM unresponsive, and in some cases, possibly result other VMs […]

Updated: October 20, 2018 — 5:06 PM

hosts file modification base on network address

There are times, we might have a different networks and for each one we might need different manual IP and name mapping in “hosts” file. Let’s assume we have one iSCSI server (iscsi-srv.test.lab) connected to two different networks (192.168.10.x/24 & 192.168.11.x/24) providing service. For some reason these two network can see each other so if […]

Updated: October 20, 2018 — 3:51 PM

Disabling upload feature for ShareX

There’s a free interesting application called “ShareX” which is great for lots of different tasks such as “screen shot, screen recording, file uploading and etc.”. If you interested on automatically uploads new screen shots online and share, then you might find this application very useful. One of useful feature in this application is the upload […]

Updated: October 20, 2018 — 2:45 PM

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

Docker Menu Base Tool

As I mentioned before, I wrote a small script (for Linux) to help me with containers in my test lab. This small script would help with “starting, stopping, removing, creating and listing” of containers. For “starting” or “stopping” the containers, it’s possible to use their name or pattern. For the creation of container, it’s possible to […]

Updated: April 14, 2018 — 7:19 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
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