Sunday 31 March 2013

Hoje o ceu acordou azul

O ceu acordou azul

O ceu hoje acordou azul
O o sol irradiava energia
Tudo tava Tao bonito
Tao cheio  de alegria
O vento tava quentinho
Uma brisa suave a soprar
Me aquecia o corpo  todinho
As arvores pareciam despertar
A Luz do sol tudo cobria
De uma beleza  singular
De vagar acordava o dia
Passarinhos a cantar
Celebravam a primavera
Que nao tarda a chegar
Flores desapontam pelos canteiros
Comecam  a desabrochar
Tao pequenas e singelas
Tao suits e suaves
Festejando a primavera
O ceu acordou azul
O sol veio celebrar
Os passaros todos cantavam
Numa algazarra a festejar
Toda beleza do dia
Que comecava a raiar
Tudo coberto de alegria
De um azul da cor do mar
Ah primavera, 
finalmente acordara
O inverno esta a ir embora
Com seu frio
E sua escuridao
Tudo agora e so festa
Tanta cor, em uma so explosao

por Renato de Oliveira






Saturday 30 March 2013

Hoje a lua ta cheia


Hoje a lua ta cheia
 
Hoje a lua ta cheia
Lua chei que me fascina
Lua cheia que me acalma
Lua cheia que me inspira
Lua cheia me enche a alma
Lua cheia de vida

Hoje olhei o ceu
Via a lua cheia e bonita
Uma lua que me atrai
Uma lua que me desatina
Uma lua cheia de misterios
Num ceu escuro e sombrio

Lua cheia que mexe com os mares
Que mexe com as fases da vida
Mexe com a cabeca de milhares
E que a imaginacao cativa

Hoje a lua tava cheia
Meu deu uma certa alegria
Senti corer pela veia
Uma estranha energia
Tava tao bonita e saudosa
Me fez lembrar dos anos passados
da praia, da areia morna
do coqueiro balancando com brisa
era uma lua laranja
tao bonita
tao cheia de vida

by Renato de Oliveira

Friday 29 March 2013

UKaying - LivingUK (Part1)


I have been living in UK for many years. It has been a good opportunity for me to develop in many aspects of my life; learn English, develop emotionally, become independent of my family in Brazil, be part of a multi-cultural society and learn about different cultures.

 

When I moved over I was not an open minded person. I was very young, did not have any experience in living in a different country or even outside my own town. It was difficult, but I overcame most difficulties and barriers I encountered along the way and today, I am happier.

 

The first difficult was I could not speak any English at all, I thought my IT technical knowledge would overcome the lack of language. It didn't!

I was strong and I've learnt English quite quickly, I feel I have given myself and I embraced the English culture as well as I could. I live here, I work (always maintained myself employed – this gives me a sense of being adult and responsible for my life), I pay my taxes, and I try to improve my English constantly. I love where I live. Cambridge is a great place!

 

I think to live in a different country, one of the most important things is to integrate with the local society and embrace the culture as much as you can, so you can feel part of it.

I will never be English (I don’t want to be English I am Brazilian, but living in England) if I make an effort to improve my spoken English, accept the English culture, understand how the English society functions, and just accept things are different and I need to adjust to live well.

 

I accept I will never be English, but as I am living here, I have to give my best to be part of English society and in my opinion this includes; speaking the language well (I have a long way to go, but every day I am learning and trying my best to improve it), respect the law, respect what English society stands for and give your best to honour that.

There are moments of conflict between what your learnt from your culture and what you have to deal with.

 

I think there are major differences between Brazil and England, and I don't think England is better nor Brazil is worse, they are simply different.

There are beautiful things in Brazil and beautiful things in England. I love how we can see the four different seasons, where I came from, there were only; the raining season and the sun the rest of the year.

 

Life in Brazil at least where I come from was surrounded by beach, football, religion, carnival... I don't think as a society we think in terms of future, our impact on each other’s life and on the environment. I don't think Brazilians understand the meaning and also impact of electing the wrong politicians (they don’t understand the consequences, it seems to me)…

Will write the continuation at later date.

by Renato





Windows 2008 post install tasks (Continuation)


Windows 2008 post install tasks
Add The License key
1.       The first thing to do is to add the license key to your server
a.       Click on “Change product key”



 

b.       Type the key within the “Product Key” field. And click [Next>]



 

c.       Windows will contact Microsoft and verify your key
 
Set an IP address for your Windows 2008
1.    Click on [Start], then right click on “Network”, and click on “Properties”
2.    The screen below will pop up, click on “Change adaptor settings”
3.    You will see the screen below, right click on your Network Adaptor, and click on “Properties”


 

4.    The properties screen will be displayed, select “Internet Protocol Version 4 (TCP/IPv4) and click on [Properties]


 

5.    Type in the IP address, Subnet mask, gateway and DNS, then click [OK]

 

Note: I used IP address "192.168.1.72" for this server, you need to use a free IP address on your network. This is a class C IP and its mask is "255.255.255.0". The default gateway is the IP for your router. If you have a DNS server on your network typ in its IP, otherwise use the DNS provided by your ISP.
 
Join a 2008 server to a Domain
 
1.       Click on [Start], right click on “Computer”, click on “Properties”
 

2.       The screen below will be displayed, click on “Change Settings”.
 
3.       The screen below will be displayed, click on “Change Settings”.
 

 
4.       The screen below will pop up, then click on [Change]
 
 5.       Click on “Domain:”, then type in the name of your Domain, then click [OK]
 

 
 
6.       Windows will request a user name with admin rights to join the server to the domain.
             Type in the user name and the password for the user with admin rights, the click [OK]
 
7.       The “Welcome” Message will be displayed, click on [OK]
 
8.       Click on [Restart Now]
Note: once the server is joined to the domain, windows needs to restart.

 Now you have your Windows server, initially configured. We need to decide what service it will be hosting.
 
Once this process is finished, your server will be licensed and ready to be used.
by Renato

How to Install VMware Tools onto Windows 2008 VM server


How to Install VMware Tools onto Windows 2008 VM server


1.       Log to your Windows 2008 server (the one you just installed)

2.       If your server is a VM, you need to install the VMware tools.

a.       Right click on the server name, click on “Guest”, then on “Install/Upgrade VMware tools”





 
b.       The windows below will popup, just click [OK]





 

c.       Windows will mount VMware tools as a CDrom drive and auto start, see below.
                         Click on “Run setup.exe”




 
d.       VMware is preparing to install
 
e.       When the screen below pops up, click [Next>]
 
f.       Choose “Typical” and click [Next>]




 
g.       Click on [Install]
 






 
h.       Click on [Finish]
 

i.       Click on [Yes] Windows will reboot and the drivers for your NIC will be installed
 
 

 
Once Windows has rebooted, the drivers will be installed, then you can configure the network.
 
By Renato Oliveira
 

Cambridge to Liverpool Street... Continuation

Cambridge to Liverpool Street... Continuation
 
I was wondering what makes some people not care for the place where they live.
Why do they drop litter on the streets, dump rubbish alongside the road and railway, graphitti on the walls, etc...
I was thinking and wondering about why certain areas are less well looked after?
 
Some people don't care about those areas because those areas are not well looked after, or those areas are not well looked after because people just don't care?
 
Some people don't take pride in the area they live in because those areas are not well looked after or certain areas are not well looked after because some people don't feel proud in living there?
 
Some people don't feel engaged with the areas they live in, because the areas they are in are in poor state or the poor state of certain areas is the lack of engagement by the people who live in those areas?
 
Some people don't feel connected to the areas they live in, because the areas they live in are not well looked after or the areas are not well looked after consequently they don't feel connected to the area?
 
I think in order to feel connected to the area and look after it well, you must like it, you need to feel part of it, you need to feel it belongs to you, you have rights to have a well looked after area, so you can relax and enjoy a nice walk with your family and friends and maintain it as an extension of your house
 
I think we all need to engage somehow to the areas we live, and help in maintain those areas, I think only then, our pride and sense of belonging we grow and develop strong inside of us.
Another important point is; we can't just wait for things to happen, we must make them happen. We see the government making cuts in all areas. If we make sure we help in cleaning our areas, making sure we don't throw litter on the roads, we don't dump rubbish around. The money saved, can be used in other areas. This is our money, as we pay TAX, we must make sure it is well spent on the areas which are in real need such as: Health, Education and looking after elderly.
 
I was would like to we could go out in groups, start cleaning the areas we live in, be proud of it, be part of it. Taka the rubbish to the dump, make your area look nice, cosy, welcoming.
Take part, form a group and pick a location to renew, as a society we are moving further apart every day. Let’s create bonds and help each other in creating places our kids want to live in, places where we feel at home and we feel connected…
I love Cambridge and I think we have beautiful villages all around, it is such a shame some of these places are in an estate of neglect…
 
By Renato Oliveira
 

Wednesday 27 March 2013

Using DD Command to image a Linux server (Part1)

Using DD Command to image a Linux server (Part1)

I was managing few servers hosted quite far from where I live.
I also have been tasked to create a test environment, which completly mimics the live system.

I thought long and hard on how to do it and what was the best way to approach this task. Bear in mind I had no prior knowledge on how a) the system was set b) how the system worked, which made my task a bit challanging.

I had to clone the servers based in US, bring the images over to UK, restore the images to VMware ESX and get the servers up and running.

The first thibgs I did was:
Check which servers had enough space to host temporarly large image files.
Once I established where I could store the images, I used dd command piped over ssh and that was it.

See the command below:
# dd if=/dev/hda | gzip --fast -c | ssh user@remotehost /bin/dd of=/tmp/mypc_hda.img.gz

Once I had created the image locally, all I had to do was to transfer each image over the Internet back to UK.

Once I had the images on site, I copied each image in turn to a VM server, restored it and that was it.
The restore process is a bit fiddly, I will write another post to cover the restore to VM.

I hope you guys enjoy it and make use of it.

by Renato Oliveira



IT projects I have successfully worked and complete (Firewalls SRX)


IT projects I have successfully worked and completed continuation...
 
Firewall setup.
Juniper SRX 240 H



 

For some reason many financial institutions like Cisco at least the ones I have dealt with, most use Cisco. What a pity!

I personally have used Juniper SSG F25 (running SreenOS) for many years and I just loved it. I think it is easy to setup, it is robust, it is reliable and I love the concept of “Zones”.

By the way “Zones” was something that Juniper developed and not Cisco as many think.

So I thought of using Juniper SSGs F25, but after talking to few people and doing some research I discovered SRX range.

We decided to use the Juniper SRX 240H, this Security Gateway has an amazing 16xGig Ethernet ports, 1GB Memory without mentioning Juniper’s support is the best I have ever used. Juniper engineers are knowledgeable, are helpful and they know their stuff.

One of the requirements was the site must be available at all times, and we will only failover to our DR if our live site is completely down.

With that in mind, I decided to use a HA cluster and bought two Juniper SRXs.
 
The Juniper cluster has been up since I finished the setup 1 year ago. They are so stable, so robust and reliable.

There are two ways of configuring a Juniper SRX:

1.    Using the web interface

The command interface is very intuitive; easy to use (it is not confusing like some firewalls out there i.e Sonicwall and Cisco ASA).
     
     2.   Via command line

The command line is quick, reliable and the commands are just named right.

There are aspects I prefer to config via command line and some other parts are just nice configuring using J-web.

Another strong point in favour of Juniper SRX is it price comparing to for example, Cisco. If you were to buy a Cisco device with the same amount of Giga Bit Interfaces x 16, Memory and features, it would cost 3 times the Juniper price.
 
Setting up an IPsec VPN is easy, quick and also very easy to troubleshoot, there is feature called "traceoptions", makes your work much pleasurable.
I think for Administrators, it is a great product and for business it is a great value for money. Robust, secure and reliable.

Some SRX Features
  • User processes are separated from the kernel, If an user process crashes, the system continues to run fine, as it does not affect the kernel.

 
I could list loads of features here, but there is a nice PDF with many really cool and interesting features, check it out:


Specification

Memory 1GB

Firewall performance (max)
1.8 Gbps

IPS performance (NSS 4.2.1)
230 Mbps

AES256+SHA-1 / 3DES+SHA-1 VPN performance
300 Mbps

Maximum concurrent sessions
128 K (Base) / 256 K (High Mem)

New sessions/second (sustained, TCP, 3-way)
8,500

Maximum security policies
4,096

Maximum users supported
Unrestricted

WAN / LAN fixed ports
16 x 10/100/1000BASE-T

CX111 3G/4G modem support
Yes

WAN / LAN PIMs

·         T1/E1

·         ADSL2 Annex A

·         ADSL2 Annex B

·         G.SHDSL

·         VDSL2 Annex A

·         DOCSIS 3.0 Cable Modem

·         GbE SFP

·         Sync Serial

High-availability support
Yes