Microsoft Online Exchange 365 giving NDR issues ??

Are your using Microsoft exchange 365 online ? If the answer to that is yes.. Please read bellow.

Users facing have been informing IT support that they are getting Non-delivery-Report (NDR) for some e-mails that they have sent.

Babies Guide to working with directories Linux/Solaris

Here a a basic list of commands to help newbies to work with directories on Linux / Unix

1) How to create a folder

mkdir - this command will make/create a directory


e.g. bash# mkdir folder1


(this command will create a folder 

2) Removing a folder

rmdir - Remove/deletes a folder

e.g. bash# rmdir folder1

flags :
-r  Recursive (very dangerous if you don't know what your doing, i say it cuz of personal experience)
-f  Force (removes files that will not be able to be removed with the normal rmdir command)

these flags are to be used in between the after the rmdir e.g. bash# rmdir -r folder1 

Pluged in, Not charging .....!!! arrggggggg

Charger connected but battery status shows connected but not charging...

Is your laptop acting bitc*y and not charging at all, at this point you think your laptop battery is screw*d and you can't imagine how much is it gonna burn your pocket.

Please try these few steps of troubleshooting before burning a hole in your pocket.

Enabling second interface on the server without physically connecting the cable "Big Mistake"

Warning : Kids Please don't try this on any server without having physical connectivity to it,,, cuz this is a disaster waiting to happen.

This caution has been written after one such incident happened and it really was not fun to debug especially if someone from the team has done this and not informed anyone.

The server on which this was done unfortunately was the Exchange, DNS, and VPN server. After the second interface was enabled there was loss in VPN connectivity. Exchange was also giving problem's :(

Another Tragedy in the server room... :(

RadiSys Server alert :-

If you have a RadiSys server in your server room i have a small warning for you people, make sure that you have a room temperature monitoring application and make sure that there is a separate AC/Cooler installed in the server room as this is a disaster waiting to happen.

Last week we had our exchange server DOWN as the room temperature in the server room was too hot, Onsite team was quick to react and realized that it was the RadiSys that was creating all the heat and although we had a centralized AC which was cooling the Server room, the cooling was not enough and due to heat in  the server room the exchange server which was the closest just shut down the server as the temperature around it was too hot.