I have just wrote a post about how to install nslookup, but what is nslooup?

well, according to wikipedia it is

"nslookup is a computer program used in Windows and Unix to query Domain Name System (DNS) servers to find DNS details, including IP addresses of a particular computer, MX records for a domain and the NS servers of a domain. The name nslookup means "name server lookup". The most common version of the program is included as part of the BIND package. More modern alternatives to nslookup are the "host" and "dig" programs which also ship with BIND. Both nslookup and dig look up nameserver information from /etc/resolv.conf."

These days 3G connections are becoming more and more popular, and one of the most popular modems, at least in Latin America is the Huawei 156, which is a USB HSDPA modem, it works automatically on Windows, also with Ubuntu (at least with the last version) but with Arch or Debian no, that is mainly because you do not install all the packages needed by default on these distros.

There are a lot of pages explaining different ways to achieve this over the Internet, I have read a lot of them, and this is my summary of the steps I needed to follow to finally have a working Internet connection through my nokia E71 phone integrated modem.

Yes, it is better to have an ADSL, Cable o any other connection over a 3G connection, but sometimes your cellular is your only way to access the Internet, for me that is specially true when traveling, sometimes the Hotel Internet fails and I need a backup connection to read my email, and yes E71 is capable to do that, but I prefer to use my Laptop keyboard rather than the phone's one.