How to change default root@ email address linux / postfix / centos?

Ananda Raj PandeyLeave a comment

Change root@hostname to different email address

 

By default, any email sent by system is sent to root@hostname. So critical server errors, log errors, corn jobs alerts e.t.c all are sent to this default email address. To change it to different appropriate email id, we can do this by two ways.

 

By updating email aliases file:

For this example, lets set email to system@mydomain.com

Step 1 : edit /etc/aliases file 

 

$ vi /etc/aliases

 

Add email ids at the bottom of the file.

 

root: system@mydmomain.com

To add multiple email ids, we can simply separate them by comma.

root: system@mydomain.com, linux@mydomain.com

linux@mydomain.com is second email id 

 

Step 2: Run the aliases command, to compile aliases file. 

$ newaliases

Step 3: Restart postfix server.

service postfix restart

 

Second way:

We can simply create .forward file to the folder root and add email address there.

$ vi /root/.forward
system@mydomain.com

Restart postfix server
$ service postfix restart.

 

That’s it. Enjoy!

 

p2p Video Chat – GSoC Week 3

Ananda Raj PandeyLeave a comment

Lalit Khattar's avatarLalit Khattar

After finished implementing chat log search last week, I moved on to my next major task – implementing p2p video chat in waartaa.

Introduction

A p2p(peer to peer) plugin-free video/audio Real Time Communication(short for RTC) had always been a nightmare for developers to implement. This was changed few years back with the introduction of WebRTC – an open source, plugin-free, built into browsers technology. Today, there are many web services out there which uses webRTC eg. Bistri.

Implementation

A WebRTC application needs to do several things:

  • Get streaming audio, video or other data.
  • Get network information such as IP addresses and ports, and exchange this with other WebRTC clients (known as peers) to enable connection, even through NATs and firewalls.
  • Coordinate signaling communication to report errors and initiate or close sessions.
  • Exchange information about media and client capability, such as resolution and codecs.
  • Communicate streaming audio, video or data.

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