Future mode of Transport

Netfs explained according to sourceforge.

NetFS Overview

NetFS is a peer-to-peer protocol for distributing and incrementally updating entire file systems of files. It can handle many small files, mixed with really large ones with near optimal download speed for most users most of the time. Like BitTorrent, it allows a publisher to distribute files to very many peers with minimal load on itself, since the peers upload mostly from each other.
With NetFS, peers are typically not downloading anything at all. Instead, they serve up the file pieces they've cached on-demand, as needed at high bandwidth, and occasionally download a file when it's accessed for the first time. Most of the time, the network connection is idle. They are available to relay data that is in high demand, however, enabling NetFS to be far faster than BitTorrent for downloading large files when demand surges.

Autofs with the intr option

I have been mounting NFS from client side without the intr option but came across several books which uses the intr option. So, I did a little of search-and-explorations. A typical auto mount in would look like this:

#nano /etc/auto.master

/localdir /etc/auto.misc

#nano /etc/auto.misc

* -rw,soft,intr nfsserver.example.com:/exporteddir/*

The process cannot be interrupted or killed (except by a "sure kill") unless you also specify intr, which I would think stands for interrupt. Then again, if you are not in a hurry, then you can do without the intr option.

Funny Story about Linux 1

The story goes something like this: Linus Torvalds, the creator of the Linux Kernel, was visiting his friend Andrew Tridgell, the creator of the Samba suite. They were walking through the Zoo in Canberra when, without warning, a huge flock of vampire attack penguins dove out of the sky and tried to carry Linus away. Fortunately, Andrew had an umbrella. Still, one of the birds was able to nip Linus' hand with its fanged beak. Rumor has it that on moonlit nights Linus still runs out into the darkness and jumps, stark naked, into icy water. Of course, he's Finnish and may always have done this. In any case, this is why the Penguin is the Linux Mascot.Andrew says that the story has changed a bit since the actual event.

Source: http://www.samba.org/samba/docs/SambaIntro.html

Useful SELinux Boolean Explanations

SELinux Booleans Explained:

acct_disable_trans (SELinux Service Protection)

Disable SELinux protection for acct daemon

allow_cvs_read_shadow (CVS)

Allow cvs daemon to read shadow

allow_daemons_dump_core (Admin)

Future mode of Transport

Tips for Video Streaming using VLC

-Stream the video in the original format by selecting the streaming format in the selected box





































-Use the right Protocol
-Enter a valid muilt-cast address

IxChariots Network Diagram

Steps to protect a simple Apache Web Server using user-based authentication

1. Create a .htaccess file and save it on the web directory that we want to protect. (e.g in /var/www/html/ )

A sample .htacess file should contain 4 settings:

AuthName "Secure Place"
AuthType Basic
AuthUserFile /etc/httpd/conf/.htpasswd
require valid-user

FYPJ 09/10 P2 -Video Demo

SaMba

Squid

TCP wrapper

FYPJ 09/10 P2 -Roles&Responsibility

FYPJ 09/10 P2 -Network Infrastructure Diagram

Final Presentation 2009/2010 P2

Analyzing success documentation and procedure (IxChariots)

Analyzing 2

Add a video pair

Step 1: Click on the Add video Pair button.

Step 2: Enter the Endpoint 1 and 2 addresses. Endpoints address is the Fedora workstation IP address. Network protocol: RTP and click OK.

Step 3: Click on the run button or Ctrl+R to run.

Step 4: Analyzing result will be appear when analysis. Click the Stop Button when video streaming is over.

Analyzing success documentation and procedure (IxChariots)

Analyzing success documentation and procedure (IxChariots)

Analyzing 1(Add a Pair)
Step 1 :Click on the Add button


Step 2 :Click on the Add button

How to use VNC Server in Linux (Fedora)

Introduction to VNC

VNC is a remote control system which use the RFB protocol to remotely control to another computer which allow user to take view and full control of the computer.

Install VNC

What is PAM? How to configure PAM?

What is PAM?

PAM stands for Pluggable authentication modules invented by Sun. PAM is a different from TCP Wrappers or xinted that restricts access to some service. Linux PAM provide authorization for applications and services in a linux system. Mainly PAM is about security,checking to see if services should or should not be use. Linux login were also using PAM to do authentication and validate password. Even applications like SAMBA are going through PAM.

Benefits of PAM

The blog design has been revamped.

Changed the template, gadgets and several things. How does it look now? What else can be improved?