₦airaland Forum

Tell you customer also that if he needs more bandwidth for ten PC's the price is different for one PC.  You can not have 10 cars running parallel on a single lane road.  You'd need ten lane road to run 10 cars.

As an engineer, you need to configure yoy customer backbone network as a hierarchal star topology.  Use switches NOT Hub. Have many gateways.

For example if you internet cafe guy has 10 PC and in the building, the physical arrangement is 3 PC's per row with 3 colonms then you had need:

1. 1X4 router
2. 1x2 switches
3. Terminate your RJ45 (Dont buy terminated ones)
4. Make sure that you are using STP cable
5. NIC card (10/100Base -2T)
6. Make sure the cable from the VSAT is on 100/1000Base -5e


Three PC's go through different gateway, each gateway is connect to another gateway through switch

[quote author="afroasian "]Usually, a VSAT is purchased. If you don't know that, its called a Very Small Aperture Terminal. Lemme give an example of cafes, you know this idea of bandwidth is becoming a problem. For example: a company says they are selling 64kbps/128kbps or 32kbps/32kbps or any other combination they may fancy, and maybe for a cafe, the proposal goes well, the client pays me and I go and pay-up at the ISP or wherever, i set up the cafe, the VSAT equipment gets delivered and the company's engineer comes to do the installation, or sometimes, i might do it myself, okay, later the client starts complaining.the usual, "my internet is slow"[/quote]
VSAT, I do not need to explain what is means, but satellite communication has their problems.  It receive and transceiver digital signal through wave frequency.  In network there is things we call crosstalk and noise to data.  Car, singing, shouting, air, wind, electronic interference can cause network noise hence reducing attenuation length of an electrical/wave signals.

Personally I don't like WLAN.  The bandwidth issue is very confusing for a lot of people.  Unless you are connected to an ISP through a dedicated line i.e. telephone line/telecoms line, you can never get a dedicated bandwidth. 

Wireless ISP provides a bandwidth for their customers say 64kbps/128kbps.  That amount of bandwidth is shareable among all their customers using VSAT or some sort of wireless device to communicate with their ISP.

If you have more people connected to their ISP through VSAT the more the badwidth is going to reduce.  If you have less people connected the more you can gain more bandwidth, it is that simple.  There is no technology I know today yet that can control wireless traffic into a dedicated customer device.  Mind you the wireless uses 803.11a/b/g if I am not wrong.  When data is broadcast on this frequency everyone with a device(VSAT) that can listen to this frequency can access that data.  It is not dedicated like telephone line.

It will take me time to explain all these issues so bear with me. I do not want to put up a long read.

Buy a domain name lawns.com, and create any email address out of lawns.com.  Normally Domain registry allows 2 or more email names depending if it is personal or commercial domain.

You have to check if lawnzo.com is still available to buy.  If not you can try lawnzo.inf, lawnzo.co.uk, lawnzo.fr, lawnzo.ng etc.  If .com is your primary choice you'd try another lawnzo i.e. lawnzo1.com.  When y ou buy the domain name, normally you have default 10mb space to host your HTML page(s) and default control panel to create you chosen email i.e i.am.rich.man@lawnzo.com.  If u are lucky you can get more email users like up to 10 users.

You can create/delete user and purge the email permanently or whatever you want.  You can move your domain name to another company that could help you with more emails if that is your primary goal.  That is why different host have different market strategy to promote their hosting.  All you need to move is your primary and secondary MX record.  You can find it from your control panel.  When you move it take like 72hrs to propagate.

Although sometimes Jacko behaves unreasonable, who doesn't?  Please people should leave this legend alone to enjoy the rest of his life.  If someone is too stupid to go and share bed with him, that person is more than a wacko then?  I would be privileged to see him and even share bed with him, at least I know when to tell someone stop and would not take it personal like some resource hungry attorney's and poor families trying to make quick dosh.

May I ask, why not Hardware/ISP/VSAT?

Thank you joftech your comment was eloquent and it is well noted.  I need more of this sort, a constructive argument.  Thanks joftech

@joftech, you misunderstood me.  I understands his script and what it does. the table replies is on localhost DB (mysql) and he is claiming fast response time of 0-50 cartesian product at 0.0024 seconds.  This would not be the same on networked or remote DB which was based on the argument of developing the title of this thread.

Everyone knows what is MYSQL

[quote author="oasis"]A typical technician abroad may know more than a PhD holder in Nigeria.  Why?[/quote]At least a typical technician abroad will NOT do expo or bribe lecturers to get their certification.


That is why loverBwoy said Nigerian graduates are half baked

Don't be naive Mr Oasis, the primary prerequisite for any computer Science Student is DB.  DB is NOT the issue here, I DB on oracle 10g everyday.  I don't use your sort of script language, which is still beginners script.  I use PL/SQL where you write SQL queries like you are programming Java.

I understand quite well that your script is trying to do at least.  The problem I had was that where do you run it?  On google or DB, which was relating to getting some page after some milliseconds. 

Anyway sha, I really do not know why I am arguing with you.

Now, Mr man you know DB and don't know your Network.  You'd thought when you were taught network at school, that it was for Network Administrator.  Naah!!

Let me tell you.  On a typical network backbone you have fiber/10000Base -5T, what does this mean?  It means you can transmit 10000 electrical impulse/+5volts -5volts across a copper or fiber class over 5000meters long.

Now your dial-up to the your ISP at the most 10Base -2T. 10 electrical impulse (bits) over a twisted pair of 200 meters long before attenuation.

If your DB is in Hong Kong and you are at Nigeria.  You have to consider latency (length of electrical impulse/wave frequency) and how many packet(s) would be lost and require repetition.

Furthermore, the DB would have some way to handle all the request in some sort of orderly way, putting you request even more delays.

To actually find the time it takes to access a DB on a massive scale you need a logarithm to some base. To find your connection speed to your DB you'd need this equation.

dB = 10 log₁₀ (P_final/P_ref)

db = decibels
log = logarithm
P_final = is the delivered power measured in watts.
P_ref =  is the original power measured in watts

This equation is just for you to get you network connections and speed incheck.  After that you will read your DB manual to get more information on time access.  Depend how good u are on query, you can get good response.  If you write sloppy scripts you gets sloppy response.

Please don't compare your localhost DB speed to a networked DB running at a remote place.

That is the little he gets for introducing you to the business.  No information is free. Our Era is called Information Age.

@disney what language in programming are u into, if any?

There is a special keyboard and mouse used by digital artist to render drawnings like if they were drawing on a piece of paper.  The keyboard is like a drawing board with the mouse build into it in rollable form.  There is a software used with this purpose like AutoCARD tools and many more software out there.

If you see a high quality picture with nice resolution, possibilities are the designer used some sort of sophisticated equipment to build it rather to scanning.  It might as well be scan, but I'd doubt the quality would be as good as this.

@joftech, can you please tell me what is ICT and govt policies relating to ICT and wazobialinux?

@oasis, sorry if I am being histronic, but the requirement would not digest well with DB, in my opinion at least. Yea! can you educate me on what u meant by

SELECT * FROM `replies` LIMIT 0 , 50  

And here's the answer I received:

Showing rows 0 - 49 (42832 total, Query took 0.0024 sec)

Sorry, you totally lost me there? Could you explain more on this? Coud you also tell us how you come about google using DB to store all their Web-Map i.e websites?

@Ehiwere, "free tution fee institution" come on, where on earth is edu free?  You'd become international student the minute you leave your country.  The fees for international student if high.  Here in London, it is as high as £12000 per annum (Two semesters) for 3/4 years 12k x 3 = 36k for BSc, BA, BEng.
The UK law do not allow international students to work more than 16hrs a week.  Besides, if you work too hard your studies will suffer.  Do google search

@africanboy, I wish I could come down to you and show you what I mean.  Every networked computer both intranet, extranet, internet should have an updated antivirus.  It is like drving a car without insurance.

Come on guys, gosh!! this is file and directory manipulations.  Why DB?  DB would be very wrong for this project.  Read the requirements above it says file, time, access!

Well, you can implement this on DB and let me know how you got on.  Database application naturally suffer for connection problems.  Many advances has be introduced to alleviate DB access i.e datapool etc.  DB is good to store data for later manipulation.  But if I am correct the requirement of this project has the data store on a file (pdf), why re-store already stored data?

My solution if you need it is, the fact that you are implementing this on PHP gives me little avenue to help.  If it was in Java this is where JNDI comes in.  Using PHP I would advice using XML/XHTML with DOM

Describe all your data in your XML schema and write a good XML template to describe your application use XHTML to render your result and perhaps write a little PHP to synchronise with time, that is it.

@reree I have send you an invite to v.dualib@uol.com.br

I just taught I showed everyone on this thread how Java and Enterprise Architecture works.  If you have this architecture build into a programming language, tell me what on earth a programmer with this can't achieve?

See Java used with MVC Model

Go for it and good luck in all your academic endeavors.

I don't know why I keep criticizing peoples work?  Maybe the work is bad/worst, I don't know.  Anyway sha, let me give you feedback from my perception.

The look and feel is bad.  The GUI is itchy and I do not personally like the fonts.  How about accessibility?  If you are designing for a company the company would appreciate value for money hence I cannot find HCI properties in your design.  The navigational structure is good, i.e. vertical and horizontal.  Good consistency throughout the web apps perhaps you'd use CCS

Overall, I will give you 30%.  Please color is not the the factor for determing a good website.  Many people believe it or not have color blindness.  A simple black and white background should do it and a little color to emphasize some areas of interest to customers.

[quote author="mosaic2"]God exists whether people choose to believe in Him or not[/quote]We all know that even the scientist, that God exist.  The question is how do you define God?  The Religious way? Or the Scientist way?

By the way, I like your name Mosaic, it reminds me one of the first web browsers before Netscape came out.

I don't blame them ooo!!!.  Desperate situation needs desperate measures!!!   

@gentleone, sorry to hear that.  Anyway shaa, return it if you can and ask for refund/replacement if possible.  If you don't want to go through that just buy external USB that connects through serial port or parallel port.

You can visit xdrive they have fantastic offer on free web space.

[quote author="mochafella"]VAR,Var,vAR,VAr in different places[/quote]Please tell them ooo!!!