Find the installation date of an OS

Go to command prompt and run the following command:
systeminfo | find /i "install date"

“John the ripper”….. the ultimate password cracker for Linux/Unix

Installation & configuration:

1. Download John the ripper  from www.openwall.com
2. Do the following as root:

   # tar -xzvf john-1.7.6.tar.gz (to extract)

   # cd john-1.7.6/src/

   # make (to see the platforms and select our platform)

   # make linux-x86-64

   # cd ../run/

3. Now John is ready to run

   #./john -users:binoy /etc/shadow (we can give multiple users separated by comma)

   we can see the password on screen. Also, password will be stored in john.pot

   # cat john.pot (to see the password)

   # ./john -show -users:binoy /etc/shadow (it will show full details of that account in /etc/shadow file as below)

   binoy:abc123:15003:0:99999:7:::

Bluefish……A great free Linux/Windows Editor

Included language definition files for:
    * C/C++
    * CSS
    * CFML
    * gettext PO
    * HTML
    * Java
    * JavaScript
    * JSP
    * Perl
    * PHP
    * Python
    * Ruby
    * Shell
    * SQL
    * XML
and plenty more features.

Go to http://bluefish.openoffice.nl/ for more details  and installation instructions

Great tutorial to Configure BIND

http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-bind.html

How to recover IOS from ROMMON

rommon 1 > IP_ADDRESS=172.30.10.20 (gives IP address to current device)

rommon 2 > IP_SUBNET_MASK=255.255.255.0

rommon 3 > DEFAULT_GATEWAY=172.30.10.1

rommon 4 > TFTP_SERVER=172.30.10.100

rommon 5 > TFTP_FILE=c3640-jk9o3s-mz.123-14.T7.bin

rommon 6 > tftpdnld  (this command will start the download of IOS from TFTP server)