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Wednesday, May 26, 2010

Command to set proxy

$export http_proxy=http://username:password@host:port
$export http_proxy=http://mnnit:mnnit@172.31.100.29:3128
[KG]

Monday, May 24, 2010

Email Archiving and Email Compliance


Email Archiving is the management of exponentially growing email archives onto a different storage media, this might be to a local drive, into a .pst file, printing off the email onto paper and sticking it in the client files, or possibly moving the email onto alternative storage media. May be this is not good enough! Organizations also looking at email compliance which requires for the emails to be kept for compliance and legislative purposes in a central repository. This central repository should not be able to be tampered with any form, any access Administrator/Supervisory Access to this central repository should form part of a formal procedure with auditing to comply with the privacy legislation, notably the Data Protection Act (DPA) and Human Rights Legislation.

Cracking Passwords Guide

http://tools.question-defense.com/Cracking_Passwords_Guide.pdf

Saturday, May 22, 2010

TOR


I dont know much about Tor network, I just experienced it once.
Very first thing it is not a P2P network; its an Overlay network kind of thing.
It has some important parts

- Rendezvous points(where nodes make introduction requests and responsible to create circuit)
- Onion routers(for taking routing decisions)
- Relays(servers which provides anonymity to Tor clients)
- Directory servers(which redistribute relay(server) lists as directories to clients)

Tor clients obtain anonymity by building circuits of usually three relays that redirect their communication before exiting to the real Internet. All messages along the circuits are encrypted multiple times so that neither participant can tell where the circuit begins and where it ends.The result of this redirection is that nobody can link the clients’ IP addresses to the data contents. All data is sent in fixed size cells. By compromising starting and end point information can be revealed.

How Tor provides anonymity?
To clarify it I have taken some pics created by Gregory Norcie







Tor also provide integrity checking with perfect(pseudo) forward secrecy.

Remember:
# Not secure against end to end attacks
# Not steganographic

Note: I may include more further.

Few steps to speed up Firefox than Google Chrome


Google Chrome has now eclipsed Mozilla Firefox in the speed category. However, I still use Firefox as my main web browser because it is still better than Chrome in certain areas.

But you need to try a few tweaks that significantly improve the speed of Firefox making it a little bit snappier than the latest version of Google Chrome when loading webpages.

Here are some of the things that I did that helps make Firefox somewhat faster than Chrome:

1. Type about:config into the Firefox URL/address bar and hit ENTER. You will be warned that you might void your warranty if you change some advanced settings, but just go on and trust me :-)

2. Inside the Firefox configuration page, scroll down and look for the following entries:

network.http.pipelining
network.http.proxy.pipelining

Set their values to “true” by double-clicking each one of them.

3. Next up, find this entry:

network.http.pipelining.maxrequests

Double-click and set the value to 8.

4. Right-click anywhere inside the config page and select New --> Integer. Name it nglayout.initialpaint.delay and set the value to “0″.

5. Right-click anywhere inside the config page and select New --> Integer. Name it content.notify.interval and set the value to “500000″.

6. Right-click anywhere inside the config page and select New --> Boolean. Name it content.notify.ontimer and set the value to “true″.

7. Right-click anywhere inside the config page and select New --> Integer. Name it content.switch.threshold and set the value to “250000″.

8. Right-click anywhere inside the config page and select New --> Boolean. Name it content.interrupt.parsing and set the value to “false″.

That's about it. You should be able to notice the speed improvement immediately after applying the above tweaks.

Disabling Firefox addons that you don't use often, blocking flash content, and using a lightweight theme will also help speed up Firefox.