It is possible to safely boost the wireless range using the DD-WRT firmware. After you install the firmware, visit this link to figure out how this can be done. http://www.dd-wrt.com/wiki/index.php/Advanced_wireless_settings#TX_Power. Do not make this value very high, else you could end up with more error packets and performance degradation. A very high value could result . . . → Read More: How to boost the wireless range of your WRT54G2 router
The normal Cisco / Linksys provided firmware on the wireless router does not have as many features as the firmware upgrades that the DD-WRT has made.
A short list of features from the DD-WRT include:
Ability to support VPN for secure communication SSH support for managing the router over the web or a terminal Better . . . → Read More: Update Linksys WRT54G2 router to DD-WRT
You can use http://nmap-online.com It is the equivalent of scanning a system or network for open ports from outside of the network you are in.
To connect to your computer over your home network or the Internet you can use SSH to securely route your communications to your computer from another device (computer or smart phone).
You have configured SSH on your computer running Linux. You have converted your private key in your ~/.ssh folder to putty required format. . . . → Read More: Connect to your Computer using SSH from a Nokia E63 smart phone
Windows does not have an ssh command, to help you connect to a Linux computer using SSH2. Use putty to connect to your Linux computer from a Windows computer.
You have generated your key pair using openSSH as shown here, on your Linux computer. You have installed putty on your Linux computer. You have . . . → Read More: Convert openSSH private key for use with Putty on Windows or Mobile Phones
You want to connect from the internet to your computer. Internet is an insecure medium to use. There are a few options. You could use a VPN like OpenVPN, or you could use Secured Shell using OpenSSH.
Here is how you can connect to your computer using SSH.
OpenSSH and putty installed on your . . . → Read More: Set up SSH using certificate authentication
On certain occasions, you need to create your own web server and try to connect to it over the Internet. This applies to any sort of server you wish to host like, Secured Shell, OpenVPN, database server and so on. If you are using an ADSL broadband connection from your ISP (Internet Service Provider), then . . . → Read More: Host your own web site on your desktop over ADSL broadband
You can use 2 network adaptors with Linux for using 2 ADSL connections. The first one, you can connect and use with the host operating system. After this is established and working, start your VirtualBox guest OS and choose the network adaptor as the other ADSL connection. It could be a different ISP. This should . . . → Read More: Use 2 network adaptors with Linux from 2 broadband service providers
Default password for Tata Indicom ADSL router is admin. It cannot be changed through the web interface. Therefore, you can use: $ telnet 192.168.1.1 Enter the ID as root and put admin as the password. Http protocol is not accepted by the router, if you login from the WAN. You can use telnet instead.
a. Login as root
b. # traceroute www.yahoo.com to find out your gateway / ADSL IP address.
c. # nmap -sS -p80 59.123.101.* to get all devices where port 80 is open.
. . . → Read More: Locate Open Ports on ADSL routers