Showing posts from July, 2007

Linux Secrets

By Arlene Mason
The first thing that you will notice about Linux Red Hat (using the Gnome Interface) is that it looks a lot like Windows 95/98/NT. But that's where the similarity ends. Linux requires a whole new set of commands as well as a new way of thinking about things.

For instance, in Windows 95/98 you can adjust monitor or screen properties by just a few key strokes. With Linux, however, in order to adjust the monitor settings, you have to run a program called Xconfigurator. And there is no information anywhere as to how to do this. It is one of these secret things that Linux users don't worry about because "everyone knows how to do it". Those of us changing from Windows to Linux have a need to know these things.

Let me tell you the secret: You have to be logged in as "Root" then you exit to the terminal. Now this looks like a DOS shell, so Windows users don't get too confused. Then at the # prompt type in Xconfigurator. Then you are taken to a conf…

Implementation of Asterisk in Corporate Environments

Asterisk, complete PBX software, runs on Linux, Windows, BSD and OS X. Asterisk does VoIP in four different protocols, and is able to interconnect with almost all telephony equipment which is inexpensive.

Asterisk provides many features like Voicemail services with Directory, Call Conferencing, Interactive Voice Response, and Call Queuing. It includes three-way calling, caller ID services and Skinny.

You will not need additional hardware to implement Asterisk. But it does expect a non-standard driver that implements dummy hardware as a non-portable timing mechanism. Single or multiple VoIP Providers can be used for incoming and outgoing calls, though incoming calls can be handled by different VoIP Providers.

For use of digital and analog telephony equipment, Asterisk supports a number of equipment most notably is Asterisk sponsored hardware Digium. Their FXO and FXS cards are popular for small installations.

Full features of Asterisk Open Source Edition include Full PBX Capability, Switch…

More Information on Firewalls

It seems nowadays if you are not online, you don’t exist. It really does not matter what type of company you run, you should have an online presence to let your prospects and clients know about your company and services. When you decide to take the leap onto the Internet there are some precautions you should take. I have friends who say all the time, I really have nothing to hide or worry about. This may be true, but malicious users like to deface websites.Which can ruin you and your businesses reputation.

This is a paper about firewalls protecting your company from outside threats and unauthorized access.

A firewall is a great start. Firewalls can be both hardware and software based. There are many different firewall vendors some of the bigger names are Cisco, Symantec, and Checkpoint. The difficult part is configuring the firewall. This is where many intruders bypass security, because the firewall is poorly configured.

I would like to mention that there are many Open Source programs an…

How To Control The Way Linux Starts Up: GUI or Command Line Interface

If you were interested in learning linux, one of the main reasons was learning how to work using Linux Shell environment. That is the Command Line Interface ( CLI).

How Did I know?. It happened to me, and the most asked Question is how to access the Command line in Linux.

The trick is let Linux starts with the Linux shell is simple, If done during the installation.

After the installation is over, there might be a way which is Very complex and not intended for beginners or intermediate Linux users.

The good thing is that you can access the Linux Shell whether Your systems starts up with the GUI ( graphic user interface ) Or the Command line Interface ( CLI). I will Explain this later in this article.

Depending on the preference of a users, some prefer their Linux operating system to start with GUI, and others want it to Start up with the Command Line Interface.

If you need your computer to startup linux with the command line, you need to decide during the installation.

During the installation…

Configuring NTP on a LINUX Server

by David Evans at
The Network Time Protocol was originally developed to overcome time synchronisation issues on the Internet. NTP is an Internet protocol designed to synchronise network time clients with an accurate time source or reference. NTP defines algorithms and protocol messages to aid the synchronisation of network time clients. This article provides information on how to install and configure the publicly available NTP software distribution. It also shows how to synchronise time with an Internet based time reference.

Internet based NTP time server systems fall into two categories: primary and secondary reference servers. Primary reference servers utilise a highly accurate external timing reference, such as GPS or radio clocks, to provide precise time. Secondart reference servers synchronise their time with primary reference servers and therefore offer slightly reduced accuracy. Primary reference time servers are stratum one servers, while secondary servers have a stratum great…

Try setting Fetchmail with TLS

My Office have single account in Provider for poll email.... I want to try use fetchmail to get that emails and to deliver local account .... wait for next news ... googling the net for that ...

Nvu Installation in fedora ... weird

I want to develop my office website. Based on review, i try to use nvu in my Fedora. Installation process is perfect.

But nvu can not run... I try to answer to Howforge

Add User

I am add some users to my Fedora 7. To many user make me crazy..... 50 users and more ...

Success !

Finally ... my fedora is running smoothly ... include Postfix, fetchmail, dovecot, sasauth, squid, squidGuard etc... : )

Fedora 7 - Next Installation

This morning. I try to setup Postfix with TLS. And then try to setup Squid, SquidGuard and Fetchmail for my office need. But I have some problem with my Yum. There is some errorneous/fail to update repository.
Now I try to clean yum Db with this command:

# yum clean all
# yum update

Fedora 7

I want try install Fedora 7. Until now there is no big problem.