Archive for June, 2011
- First Login into your Gmail Account.
- Go to setting option and find the Labs option.
- Then go to Undo Send option and enable it. Then click on Save Changes.
- Then go to compose Mail. And send mail.
- By default, Gmail gives you a 10-second window of time in which you may undo a sent e-mail
- If you want the send mail back then go to undo option . Your sending mail will be back
nslookup is a network administration command-line tool available for many computer operating systems for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record.
An MX record or Mail exchanger record is a type of resource record in the Domain Name System (DNS) specifying how Internet e-mail should be routed. MX records point to the servers to send an e-mail to, and which ones it should be sent to first, by priority.
Open Command Prompt & Type
Nslookup -type=mx www.example.com
Name Server Record. An NS record declares that a given zone is served by a given name server. Every NS record is either a delegation record or an authority Record. If the name of the NS record is the name of the zone it appears in, it is an authority record. If the name of the NS record is that of a descendant zone, then it is delegation record.
Nslookup -type=ns www.example.com
The first resource record in any Domain Name System (DNS) Zone file should be a Start of Authority (SOA) resource record. The SOA resource record indicates that this DNS name server is the best source of information for the data within this DNS domain.
Nslookup -type=soa www.example.com
An A-record is an entry in your DNS zone file that maps each domain name (e.g. yourdomain.com) or subdomain(e.g. subdomain.yourdomain.com) to an IP address. In other words, the A-record specifies the IP address to which the user would be sent for each domain or subdomain. This means that you can have different subdomains of your website resolving to different IP addresses, which could be useful if they are hosted on different servers.
Nslookup -type=a www.example.com
BackTrack is a GNU/Linux distribution distributed as a Live DVD aimed at digital forensics use and penetration testing
BackTrack is a Linux-based penetration testing arsenal that aids security professionals in the ability to perform assessments in a purely native environment dedicated to hacking. Regardless if you’re making BackTrack you Install BackTrack, boot it from a Live DVD or thumbdrive, the penetration distribution has been customized down to every package, kernel configuration, script and patch solely for the purpose of the penetration tester.
- BackTrack includes many well known security tools including:
- Metasploit integration
- RFMON Injection capable wireless drivers
- Wireshark (formerly known as Ethereal)
- BeEF (Browser Exploitation Framework)
- Cisco OCS Mass Scanner A very reliable and fast scanner for Cisco routers with telnet/enable default password.
- Quypt (Terminal Emulator) (which is private software by Crimson Hacking group, which has leaked to the Mainstream) Blackhat
- A large collection of exploits as well as more commonplace software such as browsers.