Ethereal-A Packet Sniffer Tool

Ethereal is really good packet sniffer tool used in Linux/Windows environment.
This software can be downloaded from the following site

www.ethereal.com/download.html

Configuring Evolution for Gmail account

Select
Edit->Preferences->Mail Account->Add New Account

In Identity Tab give necessary details like mail id,name etc

In Receiving Email Tab
Server Type : POP
Server : pop.gmail.com
Username : username of gmail
Security : SSL encryption (Select from drop down list)
Authentication type : Password (select from drop down list) check for supported types

In Sending Email Tab
Server Type : SMTP
Server : smtp.gmail.com (Tick the Server requires authentication radio button)
Use Secure Connection : SSL Encryption
Authentication : PLAIN(Select from dropdown menu) check for supported types
Username : username of gmail

Click OK,...thats it

to converting latex to pdf file

There are mainly two ways for conversion

1) type the following commands after coding your TeX file
latex first.tex
dvipdf first

2) type the following commands after coding your TeX file (using pdflatex)
pdflatex file.tex
pdflatex can't include eps-graphics. Convert all eps Files to pdf with the command
epstopdf file.eps

To convert a landscape dvi file to landscape pdf file
1) Switch to landscape in your TeX file:
\documentclass[12pt,landscape]{article}

2) Compile with 'latex' as usual
latex

3) If you like to check with 'xdvi':
xdvi -paper a4r

4) Create Postscript/pdf:
dvips -t landscape
or dvipdf -t landscape

LaTeX command for changing margins

Here are the latex command for changing the default value of margin
for this you have to use the "geometry package"

add the comand at beginning

\usepackage[hmargin=3cm,vmargin=3.5cm]{geometry}

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Latex 2e

About LaTeX2e. one of the best typesetting tools i have ever seen. Developed by the legendary scientist/engineer Donald E Knuth to typeset his own series of book -"The Art of Computer Programming". Use it and enjoy it.