IT Tips

How to solve the "com.sun.jndi.ldap.LdapReferralException" when using the Alfresco LDAP syncronization feature

2018-02-21T11:21:00.000-03:00

This morning a customer called us complaining about some new LDAP uses that should be, but were not syncronized into Alfresco.
The LDAP server in this case is the Microsoft Active Directory.

When checking Alfresco's the log files, I saw the following exception:

Caused by: javax.naming.PartialResultException [Root exception is javax.naming.ServiceUnavailableException: DomainDnsZones.a.b.c.com.br:389; socket closed [Root exception is com.sun.jndi.ldap.LdapReferralException: Continuation Reference; remaining name 'DC=a,DC=b,DC=c,DC=com,DC=br']; remaining name '']

Of course, the a.b.c.com.br domain is a fake one.

So, the main point here is the com.sun.jndi.ldap.LdapReferralException.

When the AD server is interrogated, it gives back a follow-referral to another domain controller at 'a.b.c.com.br' but this host was unreachable.

By default, Alfresco is set to follow the referrals, as there are cases where there is a forest of AD servers, and this is required when the information Alfresco needs is distributed across those servers.

Just confirm what I am saying, this is where the configuration is set in Alfresco:

<entry key="java.naming.referral">
<value>follow</value>
</entry>

For this customer, the fix was as easy as including a new entry into the /etc/hosts file:

10.200.0.1 a.b.c.com.br

I hope this is useful for you.

How to make search on Alfresco 5.2.f with Solr4 to be locale "unsensitive"

2017-11-15T01:14:00.003-02:00

Recently I got asked to make it possible to users to find the documents they are editing using the Alfresco's Google Docs integration inside Share.

I ended up finding an issue with share-service (ALF-21955 - Documents being edited using Google Docs integration are not returned by "Documents I am editing"), that got fixed with the patch provided by us.

Once that patch got applied, users were happy with the solution, until the day the content simply disapeared from the document-library filter "Documents I am editing" and from the My Files dashlet using the same filter.

I remembered about having read something on the topic before, and then I found this blog post Solve Alfresco locale sensite on searches with SOLR6, describing the solution for solr6, even though it should also work for solr4.

I tried the proposed solution, but it had no effect for me.
Digging a little more, I found the following sample configuration:

<str name="rerankPhase">QUERY_PHASE</str>

</queryParser>

That should be put inside the file solrconfig.xml (based on this document)

I tried it, but as the document library's filter relies on lucene to perform search instead of alfresco-fts, that change also had no effect.

My final solution was to include the same parameters for the rerank, but using the alfresco queryParser instead of afts, like this:

<str name="rerankPhase">QUERY_PHASE</str>

</queryParser>

With that configuration in place, everything started to work as it was supposed to.

Users now do not have to worry about the browser language preference in order to be able to find their documents being edited.

How to add the missing minification of javascript files in Alfresco SDK 3.0

2017-11-08T01:20:00.001-02:00

If you are using Alfresco SDK 3.0 to develop custom projects for Share, then you much probably have already faced the following know issues:

https://github.com/Alfresco/alfresco-sdk/issues/255
https://github.com/Alfresco/alfresco-sdk/issues/423
https://github.com/Alfresco/alfresco-sdk/issues/430

In sumary, the problem is that if you are working on a Share project that needs custom client side javascript files, Alfresco SDK 3.0 is not going to generate the *-min.js files for you.

It seems Alfresco is not going to fix these issues anytime soon, and is not even going to provide the mentioned documentation.

After hours of research and tests, I have found the following configuration that seems to be working ok for me: Alfresco SDK 3.0 with minificatio of javascript files.xml

As you may have noticed, there are 2 different executions, being:

compress-assembly
Used to process the javascript files inside the assembly folder.

compress-resources
Used to process the javascript files inside the resources.

I could not find a better way to deal with this.

One minor issue with this approach is that the minification process will add the *-min.js in the same folder as the original ones, and they are left there, even though that is not code created by you.
In my case, I simply configured git to ignore those files.

So far, all I have tested is the javascript generation, but I would love to receive some feedback on this, because I believe this is important, as -min.js files are what Share uses when running in no-debug mode.

I hope you find this useful.

SmartGit with HotswapAgent enabled. Workaround for "Must use the serial GC in the DCEVM"

2017-07-13T16:18:00.000-03:00

If you, like me, has your JDK configured with HotSwap, and you want to use SmartGit as your GUI for Git, then you much probably is going to face the problem bellow:

On Ubuntu, when you click in the SmartGit icon to start it, the icon is shown in the launcher bar, but it disapear after some seconds.

If you try to start it using the command line, then you will see the reason:

$ /usr/share/smartgit/bin

Must use the serial GC in the DCEVM
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Checking the startup script at /usr/share/smartgit/bin/smartgit.sh, you will see the line

_GC_OPTS="-XX:+UseG1GC -XX:MaxGCPauseMillis=100 -XX:InitiatingHeapOccupancyPercent=25 -Xmx768m"

As you can see, it is using, by default, the G1GC, which is not supported by HotSwap.

And how do you fix the problem?

Edit the file /usr/share/smartgit/bin/smartgit.vmoptions, and add the line

-XX:-UseG1GC

This will disable the G1GC option, and after that, SmartGit will work again.

I hope you find this useful.

Using the Alfresco Activiti (Enterprise) with PostgreSQL

2016-10-05T15:23:00.003-03:00

When you download and install the trial version of Alfresco Activiti, you get a functional server, ready to be used for tests, but the database is configured to use H2.

If you want to play with it in a more production like environment, the ideal is to have it connected to a "real" database.

In my case, I'm running this Activiti instance in the same server I already have an Alfresco for development, which is already connected to a local PostgreSQL server.

Because of that, I decided to configure Activiti to use PostgreSQL too.

The required steps are easy, and are available in the official documentation here https://docs.alfresco.com/activiti/docs/admin-guide/1.5.0/

What I'm going to do here is to provide an as easy to follow step by step procedure to make it work as quick as possible.

Getting the installer

In order to get the installer, you have to fill in a form at https://www.alfresco.com/products/bpm/alfresco-activiti/trial

You will receive an email containing all the links you need to get the installer, the trial license and also links for some documentation pages.

Download the installer you want to use (On this blog post, I'm going to use the Linux version. If you are using another option, you will have to adapt the paths accordingly)

Do not forget to download the license too, or you will not be able to use Activiti.

Install Activiti

For the sake of simplicity, I used the default options presented by the installer, so I'm going going to describe them here. Simply execute the installer as follow

chmod +x activiti-1.5.0-linux-x64-installer.run
sudo ./activiti-1.5.0-linux-x64-installer.run

Install the license file

cd /opt/activiti/tomcat/lib
sudo cp ~/activiti.lic .

Install the PostgreSQL JDBC driver

cd /opt/activiti/tomcat/lib
sudo wget https://jdbc.postgresql.org/download/postgresql-9.4.1211.jre6.jar

Create a new PostgreSQL database

sudo -u postgres createdb -O alfresco activiti

Configure Activiti to use the created database

cd /opt/activiti/tomcat/lib
sudo vim activiti-app.properties

Comment the lines below

datasource.driver=org.h2.Driver
datasource.url=jdbc:h2:tcp://localhost:9092/activiti
hibernate.dialect=org.hibernate.dialect.H2Dialect

And then uncomment these ones

datasource.driver=org.postgresql.Driver
datasource.url=jdbc:postgresql://localhost:5432/activiti
hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
datasource.preferred-test-query=select 1

That's all.

Testing

Start Activiti using the start-activiti.sh script.

If everything is right, you should be able to access the Activiti console going to http://server:8080/activiti-app

Use the default credentials to connect: admin@app.activiti.com with password admin.

net.sf.acegisecurity.providers.ProviderNotFoundException when debugging Alfresco Java code with IntelliJ

2016-06-08T11:44:00.003-03:00

When you need to debug Java code for Alfresco projects using IntelliJ, it's common to face with the exception

net.sf.acegisecurity.providers.ProviderNotFoundException: No authentication provider for net.sf.acegisecurity.providers.UsernamePasswordAuthenticationToken

A quick settings change on IntelliJ can fix that:

Go to File -> Settings
In the Settings window's treeview, browse to Build, Execution, Deployment -> Debugger -> Data Views -> Java

Uncheck "Enable 'toString()' object view:"

Click ok and try again.

That change works for me.

How to remote debug Java code using Alfresco SDK 2.1

2015-05-30T00:15:00.003-03:00

It's possible to debug your Java code using Alfresco SDK 2.1.

In order to do that, make a copy of the run.sh script and rename it to debug.sh.

Edit the debug.sh file and change the last line like this:

MAVEN_OPTS="-javaagent:$springloadedfile -noverify -Xms256m -Xmx2G -XX:PermSize=300m" mvnDebug integration-test -Pamp-to-war

Note the use of the command mvnDebug instead of mvn.

Now, when you execute your project using the file debug.sh, you will see these messages:

    Preparing to Execute Maven in Debug Mode
    Listening for transport dt_socket at address: 8000

After that, you can use your IDE, Eclipse for instance, to connect into the JVM using the localhost address and the port 8000

You can see the steps to do so at Remote debugging with an IDE

How to include a custom AMP as dependency of your Alfresco SDK 2.1 project

2015-05-27T11:41:00.000-03:00

Alfresco SDK 2.1 allows you to run a complete Alfresco server without having to install one by yourself.

When you create a project using the all-in-one-archetype, it's just a matter of executing the run.sh script into the project's root, and you have the repository, share and solr4 up and running, ready to be used on your development process.

So far, if you depended on addons, you had to customize the maven project in order to have the the addon's AMPs installed, but now, the Alfresco SDK 2.1 version allows you to achieve that by simple including the project as a dependency.

I'm going to use the well know js-console project to demonstrate how it works.
Following the steps describe in Linking Standard Alfresco AMPs to an AIO project, you will see you need the depency project to be available at a public maven repository, or on your local repository.

So, download the js-console code from github (https://github.com/share-extras/js-console) and build both repo and share projects by executing:

Inside javascript-console-repo
$ mvn clean install

and then, inside javascript-console-share
$ mvn clean install

Now you have both repo and share projects available on your local maven repository.

Into your all-in-one project, open the repo/pom.xml and add the following code block inside the dependencies:

Loading ....

And add the following into the overlays section:

Loading ....

As js-console is composed by both repo and share AMPs, you will have to do the same into the share/pom.xml, but now, using the javascript-console-share artifact, like this:

Into dependencies:

Loading ....

And into overlays:

Loading ....

Save all the changes and execute the run.sh file into your project's root folder.

Access your dev server on http://localhost:8080/share

Access the administration tools, and you will see the Javascript Console

How to decompile Java classes? Use the Java Decompiler project.

2015-03-12T10:54:00.002-03:00

I don't know about you, but I've faced with a common problem when getting someone else's work to finish on Java.

It's about getting the Java source code of projects.

Sometimes, the only thing you get is the jar file containing the compiled Java classes.

When it comes to problems like this, it's always useful to have some tools ready to be used, and I got to know an awesome Java decompiler on this tweet https://twitter.com/samuel_langlois/status/532957813019275264

It can be used as an stand alone application, or as an Eclipse or IntelliJ plugin.

Everything you need to get, install and use it is at this page http://jd.benow.ca/

UPDATE:
When I tried to execute the stand alone application on Ubuntu 14.04 64 bit, I got this error message:

./jd-gui: error while loading shared libraries: libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory

In order to fix it, simply install the 32 bits version of libgtk2.0:

sudo apt-get install libgtk2.0-0:i386

I hope you enjoy it.

Alfresco administration consoles are back

2015-03-11T15:39:00.000-03:00

If you are following this Alfresco issue https://issues.alfresco.com/jira/browse/ALF-21133, then you know Alfresco's accidentally removed all the administration console when they removed the Alfresco Explorer interface, on 5.0.b

But yesterday I saw these messages from on the issue comments history:

Kevin Roast added a comment - Yesterday

Implementation of consoles for a community admin console will be merged to HEAD shortly. Should appear in a nightly build in the next few days.

and then

Kevin Roast added a comment - 10 hours ago - edited

http://dev.alfresco.com/downloads/nightly/dist/
navigate to /alfresco as usual and you will see a new link:
Alfresco Administration Console (admin only)
Navigate to that and you will see the Community Admin Console! Including a basic System Information page plus the 3 interpreter consoles and Node Browser component available.

I decided to download the nightly build and try it to see what exactly they he was talking about, and I saw this:

Alfresco's index page:

Alfresco Administration Console (with some basic server information):

Model and Messages Console (I didn't know this console):

Tenant Console:

Workflow Console:

And a brand new Node Browser:

How to install Oracle SQL Developer on Ubuntu 14.04

2015-02-23T16:20:00.001-03:00

If you need to connect to an Oracle database, you can use Oracle SQL Developer.

To do so, you need to download the installer from Oracle's website here http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html

Before you are able to download it, you will have to login or create an Oracle account here https://login.oracle.com/mysso/signon.jsp

The version I'm going to use is 4.0.3 (4.0.3.16.84), from September 15, 2014.

Download the rpm one.

Once the download is finished, using terminal, go to the folder where you saved the installer and execute:

Install the required dependencies:

sudo apt-get install alien lsb

You will also need a JDK (Java Development Kit) installed. If you don't have it, follow this tutorial http://douglascrp.blogspot.com/2014/08/how-to-install-oracle-java-on-ubuntu.html

With dependencies in place, execute:

sudo alien --scripts sqldeveloper*rpm

and then

sudo dpkg -i sqldeveloper*deb

If everything is ok, you are ready to start Oracle SQL Developer.

Using terminal, execute:

sqldeveloper

On the first time you run it, it wil ask you to provide a valid JDK installation path.

Type the full pathname of a JDK installation (or Ctrl-C to quit), the path will be stored in /home/user/.sqldeveloper/4.0.0/product.conf

If you followed the tutorial above, type:
/usr/lib/jvm/java-7-oracle

Hit enter and it's done.

Some quick Alfresco Activiti workflow tips

2015-01-26T23:02:00.003-02:00

If you are working with Activiti workflows on Alfresco, here are some quick tips I found and I hope can save you some time.

Delete workflow instances

When you are in the development phase, usually you will have lots of workflows started, but not always finished.
If you want to remove all the running workflow instances, you can use a simple command in the workflow console (http://server:8080/alfresco/faces/jsp/admin/workflow-console.jsp)

delete all workflows imeanit

But there is a problem with this command.
It won't remove the workflow historical registers on database, and you can find some problems accessing your completed tasks after you undeploy your old workflow definitions.
This is a bug, and it wasn't fixed until 4.2.f, as described here https://issues.alfresco.com/jira/browse/ALF-20522

All you need to do is to run a delete on the database to delete all historic data for no existing workflow definitions:

delete from ACT_HI_TASKINST where not exists (select pd.ID_ from ACT_RE_PROCDEF pd where pd.ID_ = PROC_DEF_ID_);

Avoid having users starting your custom workflows

If you created custom workflows, but you are starting then using code, so maybe it's a good idea to hide those workflows in the Start Workflow form.
This can be done including the following section into your share-config-custom.xml file:

<config condition="Workflow" evaluator="string-compare">
<hidden-workflows>
<workflow name="activiti$workflowId"></workflow>
</hidden-workflows>
</config>

A better approach to install Liferay on Tomcat using Ubuntu's provided package

2014-09-18T15:00:00.001-03:00

When you install Tomcat using apt-get on Ubuntu, its root folder will be in /var/lib/tomcat7

Inside of it, there will be some folders and symbolic links

work -> ../../cache/tomcat7
logs -> ../../log/tomcat7
conf -> /etc/tomcat7
shared
server
common
temp
webapps

Folders bin and lib will be in /usr/share/tomcat7

Following the install process described in Installing Liferay on Tomcat 7 you will see, in the first sentence:

Liferay Home is one folder above Tomcat’s install location.

If you start Liferay without changing anything, just like the tutorial says, Liferay will create its folders in the Liferay Home, which is, by default, /var/lib/.

Having application data folders inside /var/lib is not a good idea, just like Dave Kliczbor commented on the comments section on that page.

In order to "fix" that behaviour, create the file /var/lib/tomcat7/webapps/ROOT/WEB-INF/classes/portal-ext.properties and add the line

liferay.home=/var/lib/tomcat7

Create the folders /var/lib/tomcat7/data and /var/lib/tomcat7/deploy and make them writeable for the user tomcat7 running

sudo chown -R tomcat7:tomcat7 /var/lib/tomcat7/data
sudo chown -R tomcat7:tomcat7 /var/lib/tomcat7/deploy

That's enough to have your Liferay server ready to run.

How to fix "Setting locale failed" message on Ubuntu

2014-08-29T17:09:00.004-03:00

Sometimes, when you try perform some activities on Ubuntu like manage packages using apt-get, you can see messages like:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:en",
LC_ALL = (unset),
LC_TIME = "pt_BR.UTF-8",
LC_MONETARY = "pt_BR.UTF-8",
LC_ADDRESS = "pt_BR.UTF-8",
LC_TELEPHONE = "pt_BR.UTF-8",
LC_NAME = "pt_BR.UTF-8",
LC_MEASUREMENT = "pt_BR.UTF-8",
LC_IDENTIFICATION = "pt_BR.UTF-8",
LC_NUMERIC = "pt_BR.UTF-8",
LC_PAPER = "pt_BR.UTF-8",
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

and

locale: Cannot set LC_ALL to default locale: No such file or directory

You can see what the problem is by typing:

locale

You will see something like:

locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US.UTF-8
LANGUAGE=en_US:en
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=pt_BR.UTF-8
LC_TIME=pt_BR.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=pt_BR.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=pt_BR.UTF-8
LC_NAME=pt_BR.UTF-8
LC_ADDRESS=pt_BR.UTF-8
LC_TELEPHONE=pt_BR.UTF-8
LC_MEASUREMENT=pt_BR.UTF-8
LC_IDENTIFICATION=pt_BR.UTF-8
LC_ALL=

As you can see, LC_ALL has no value.

Type:

sudo locale-gen pt_BR.UTF-8
sudo update-locale

Reboot your server and check again by typing:

locale

If you see no errors, it's fixed.

See ya.

How to install Oracle Java on Ubuntu 14.04

2014-08-29T16:50:00.003-03:00

Ubuntu usually comes with OpenJDK, but if you need, or simply prefer to use Oracle's Java proprietary package, then you can follow the steps bellow and have it installed on Ubuntu.

On terminal, type:

sudo add-apt-repository ppa:webupd8team/java (adds the repository to the sources list)

You will see some info, and you can safely type ENTER to continue.

sudo apt-get update (updates the available packages list)

sudo apt-get install oracle-java7-installer (download and install Oracle Java package)

In order to check if Java was intalled, type:

java -version

If everything is right, you should see something like this:

java version "1.7.0_67"
Java(TM) SE Runtime Environment (build 1.7.0_67-b01)
Java HotSpot(TM) 64-Bit Server VM (build 24.65-b04, mixed mode)

Even though Oracle Java is installed, it's still not the default Java.

To configure it correctly, you have to type:

sudo update-alternatives --config java

I hope this post can be useful for someone else.

How to install ImageMagick from sources on Ubuntu 14.04

2014-06-01T12:36:00.000-03:00

I was running an Alfresco Community 4.2.f instance on Ubuntu 14.04, but thumbnails and avatar were not working.

When the server started, I got the following error message about ImageMagick:

no decode delegate for this image format

The solution I've found was to remove the ImageMagick installed using apt-get, which at the time of writing was, 6.7.7.10, and install the latest version available at the ImageMagick site from source.

Below are the steps I've followed:

Removing ImageMagick package:

$ sudo apt-get remove imagemagick

Installing the build dependencies:

$ sudo apt-get update

$ sudo apt-get install build-essential checkinstall libx11-dev libxext-dev zlib1g-dev libpng12-dev libjpeg-dev libfreetype6-dev libxml2-dev

$ sudo apt-get build-dep imagemagick

Downloading ImageMagick sources:

$ wget http://mirrors-au.go-parts.com/mirrors/ImageMagick/ImageMagick-6.8.9-2.tar.gz

Preparing and building:

$ tar -xzvf ImageMagick-6.8.9-2.tar.gz

$ cd ImageMagick-6.8.9-2

$ ./configure

$ sudo checkinstall

$ sudo ldconfig /usr/local/lib

Following the above steps ImageMagick was installed and ready to use.

By default, it will be installed in /usr/local/bin

In order to allow Alfresco to generate thumbnails, it's required to setup the

alfresco-global.properties

Configure properties bellow and it's done:

img.exe=convert

img.root=/usr/local/bin

References:

http://namhuy.net/1730/install-imagemagick-6-8-linux-mint-ubuntu.html

http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=17059#p63413

Some useful tips using the find linux command to search for text

2014-05-18T23:23:00.002-03:00

Searching for texts into projects' source code is a common task when you are developing.

I think the best aproach is to go to shell and run the commands bellow:

Search for xml files containing the text "org.alfresco.util.CronTriggerBean"

find . -type f -name "*.xml" -print | xargs grep "org.alfresco.util.CronTriggerBean"

Look for javascript files containing the text "renderPickerHTML"

find . -type f -name "*" -print | xargs grep "renderPickerHTML"

But there are some projects that have lots of "minimized" files, and those files are not that useful when you are searching for sample code. In these cases, it's better to filter the results, ignoring the minized ones.

To do this, you just need to include one parameter to your command, like this

find . -type f -not -iwholename '*-min.js' -name "*" -print | xargs grep "renderPickerHTML"

The only difference here is the "-not -iwholename '*-min.js'.

I hope you enjoy this quick tip.

How to convert properties files to UTF-8

2014-04-25T23:14:00.001-03:00

If you need to convert accented characters like áàáéíóúÁÀÃÉÍÓÚ to UTF-8, you can use the native2ascii tool, wich comes with the Java.

In order to use it, you have to specify the source file's encoding, then the name of the file and the name of the file to write the new properties file.

If you want to overwrite the original file with the changes, simply repeat its name in the command, just like this:

native2ascii -encoding ISO8859_1 your-file.properties your-file.properties

Linux substitute to WinSCP

2014-03-18T22:31:00.002-03:00

If you use WinSCP on Windows, then you know how useful it is.

When you go to Linux, you have the option to use scp in the command line, which I think it's not easy.

What I discovered today is that Dolphin, the KDE default file manager, and in my opinion, the best file manager ever built, can replace WinSCP without any problem.

In order to connect to your server using Dolphin, you just have to type in the address bar:

fish://{username}@{server}/{path}

You will be asked to type the password, and then you will be able to copy, move, delete, and so on just like if you were working on your local disc. Simple like that.

I hope it help.

How to disable KDE Wallet?

2014-03-18T22:11:00.001-03:00

I use KDE since, basicaly, always, but I couldn't understand the real benefit of using KDE Wallet so far.
So, I've decided to simply disable it in order to avoid those anoying pop-ups being shown every time I open a app that requires password.
Disabling it is pretty simple.

Start System settings

Open Account Details

Go to the "KDE Wallet" tab

Uncheck Enable the KDE Wallet system

Press OK to apply the changes and close the settings window.

I hope this simple tip help.

Como fazer o root do Galaxy SII Lite

2013-08-26T21:21:00.000-03:00

Aviso:
Não me responsabilizo (assim como o autor do post original da referência) por danos causados ao seu celular durante a execução deste tutorial. Faça tudo por sua conta e risco, assim como eu fiz quando executei no meu celular.

Requisitos:
Kies
Odin (http://d-h.st/3zJ)
Firmware alterado. Baixar o firmware com o mesmo número do original.
Verificar usando Menu -> Configurações do sistema -> Sobre o telefone.
Conferir o item Versão de banda de base.

No meu caso, é esse aqui:
REGION: ZTM (TIM Brasil) | PDA: I9070VJLD1 | CSC: I9070ZTMLD1
DOWNLOAD

Instalação:
1. Baixar e instalar o Kies

2. Baixar o firmware correto (denovo, atenção para a versão que você vai baixar) daqui http://forum.xda-developers.com/showpost.php?p=33965191&postcount=2

3. Extrair o conteúdo do arquivo RAR que você baixou. Na pasta extraída existirão 2 arquivos, SYSTEM_.tar.md5 e CSC_.tar.md5

4. Se o KIES estiver aberto, feche-o agora

5. Baixe o ODIN

6. Abra o ODIN

7. No campo PDA, localize o arquivo SYSTEM_.tar.md5

8. No campo CSC, localize o arquivo CSC_.tar.md5

9. Desmarque TODAS as opções, exceto "AUTO REBOOT" e "F. RESET TIME"

10. Não marque a opção "Repartition"

11. Desligue o celular e ligue em modo de download. Para isso, quando o celular estiver desligado, pressione e mantenha pressionados os botões HOME (botão retangular) e o botão de Diminuir volume. Ainda com os botões pressionados, pressione o botão Ligar e aguarde

12. Conecte o celular no computador usando o cabo USB

13. Se for a primeira vez que você conecta o celular no computador no modo de Download, então será necessário aguardar até que a instalação dos drivers seja concluída

14. Clique no botão "START" e espere a conclusão

15. Não desconecte o cabo USB antes que a instalação seja concluída

16. Quando a mensagem "PASS" aparecer no ODIN, desconecte o cabo USB

17. O celular irá reiniciar no modo de Recuperação (Recovery) e terminará a instalação. Assim que terminar, ele irá reiniciar já com o Android

18. Quando o celular já estiver ligado, vá até o Google Play e instale o aplicativo "Super SU" ou "Superuser"

19. Pronto... se tudo funcionou corretamente, agora você já tem seu Galasy SII Lite rooteado.

Referência:
http://forum.xda-developers.com/showthread.php?t=1985199

Como conectar headset no PlayStation 3 para sons de jogos e chat

2012-09-04T22:39:00.001-03:00

Se você, assim como eu, só tem tempo para jogar com seu PlayStation 3 em horário alternativos, quando outras pessoas estão dormindo (no meu caso, minha esposa, com seu sono leve... rs), não sobram muitas opções. O jeito é jogar usando um fone de ouvido.

O problema é que para usar um fone de maneira "fácil" no PlayStation 3, a opção padrão é comprar um fone de ouvido wireless da Sony, mas ele é um tanto caro, em média R$ 300,00 na internet.

Como acabei de comprar o meu PS3, não pude me dar o luxo de comprar um fone desse, pelo menos não nesse momento. Pretendo comprar um, mas preciso guardar uma grana antes... rs

Pesquisei na internet e acabei arranjando um "esquema" que me permitiu usar um headset normal, desses usados para conversar no Skype usando um computador.

O mais legal desse esquema é que ele me permite jogar, ouvindo todos os sons do jogo, além de me permitir também conversar com as pessoas quando estou jogando online.

Para que tudo funcione, você precisará do seguinte:

Cabo Audio Vídeo para PS3 (acompanha PS3)

Adatador VGA (Áudio) para P2 macho

Adaptador P2 fêmea para P2 fêmea

Placa de som USB com entrada para microfone e saída para fone

Headset stereo para PC

O interessante deste "esquema" é que ele é bem barato. No meu caso, como eu já tinha o headset, acabei gastando cerca de R$ 15,00 nos adaptadores e na placa de som USB.

Agora vamos ao que interessa. A montagem e configuração

Para ouvir os sons do jogo, tudo o que você precisa fazer é conectar o cabo VGA no PS3.

Conecte o adaptador VGA para P2 nas saídas de áudio, os conectores Branco e Vermelho.

Em seguida, conecte o adaptador P2 fêmea para P2 fêmea no adaptador VGA para P2, e na outra extremidade, conecte o plug do fone de ouvido do seu headset.

Para facilitar o entendimento, veja como ficou na foto abaixo:

Esquema PS3 - Cabo VGA - Headset

Para fazer com que o PlayStation 3 envie o som para o cabo de Áudio e Vídeo, é preciso fazer uma configuração através do menu do PS3.

Para isso, acesse a opção Settings -> Sound Settings -> Audio Output Settings. Aqui, selecione a opção Audio Input Connector / SCART / AV Multi e confirme a configuração pressionando X.

Pronto, com isso, você já deverá conseguir ouvir os sons dos jogos pelo headset.

Agora resta configurar o microfone do headset para permitir a conversa entre jogadores durante partidas online.

Essa parte é mais simples, pois basta conectar a placa de som USB em uma das portas USB do seu PlayStation 3 e conectar o plug P2 do microfone na porta correspondente do adaptador.

Para que o adaptador funcione, efetue a configuração do mesmo acessando a opção Settings -> Accessory Settings -> Audio Device Settings.
Nessa tela, configure o volume do microfone na opção Microfone Level.
Para a opção Input Device, selecione USB AUDIO, e para a opção Output Device, selecione System Default Device. É imprescindível que a opção Output Device seja configurada como mostrado aqui, pois só assim será possível ouvir a voz das pessoas que estiverem conversando com você através do seu headset.

Bom, por hoje é só.
Espero ter ajudado alguém com esse "esquema".

Em caso de dúvidas, poste nos comentários para que eu possa tentar ajudar.

Abraço, e até a próxima.

Novidades do Google

2012-04-24T21:16:00.003-03:00

As especulações por trás do lançamento do tal serviço de arquivamento na nuvem do Google se confirmaram hoje com o lançamento do Google Drive.

O serviço pode ser acessado aqui https://drive.google.com/start

Por enquanto, não é possível utilizar o serviço, mas já é possível solicitar o aviso de quando o seu Drive estiver pronto para uso, o que, segundo anúncio do Google, será feito em até 24 horas.

Do anúncio:

Apresentamos hoje o Google Drive, um lugar para você criar, compartilhar, colaborar e armazenar seus arquivos. Trabalhar com um amigo em uma pesquisa conjunta, planejar um casamento com a sua noiva ou simplesmente acompanhar o orçamento de uma festa com seus colegas, tudo isso é possível no Google Drive. Você pode fazer o upload e acessar todos os seus arquivos, incluindo vídeos, fotos, Google Docs, PDFs e muito mais.

...

Com o Google Drive, você pode:

Criar e colaborar. O Google Docs está integrado ao Google Drive, então é possível trabalhar em conjunto e em tempo real com documentos, planilhas e apresentações. Depois de escolher compartilhar o conteúdo com outras pessoas, você pode adicionar e responder a comentários sobre tudo (arquivos PDF, imagem, vídeo etc.) e receber notificações quando os outros comentarem sobre arquivos compartilhados.

Armazenar tudo com segurança e acessar em qualquer lugar (especialmente em trânsito). Tudo que você tem simplesmente está... ali. Você pode acessar seu conteúdo em qualquer lugar: na web, em casa, no escritório, na rua e em todos os seus dispositivos. Você pode instalar o Google Drive no seu Mac ou PC e fazer o download do aplicativo do Drive no seu smartphone ou tablet Android. Também estamos trabalhando em um app do Google Drive para os dispositivos iOS. E, independentemente da plataforma, usuários com deficiência visual podem ter acesso ao Drive com um leitor de tela.

Pesquisar tudo. Pesquise por palavra-chave e filtre por tipo de arquivo, autor e mais. O Google Drive reconhece, ainda, textos de documentos digitalizados com a tecnologia Reconhecimento óptico de caracteres (OCR). Digamos que você faça o upload de uma imagem digitalizada de um antigo recorte de jornal. Você pode pesquisar uma palavra no texto do próprio artigo. Também é possível usar o reconhecimento de imagens: após arrastar e soltar as fotos da sua visita ao Grand Canyon no Google Drive, você pode pesquisar [grand canyon] e ver as imagens do famoso desfiladeiro. Esta tecnologia (vídeo em inglês) ainda está nos primeiros estágios e deve melhorar bastante com o passar do tempo.

Você já começa com 5 GB de espaço de armazenagem gratuito, o suficiente para armazenar as fotos em alta resolução da sua viagem ao Monte Everest, as cópias digitalizadas das cartas de amor dos seus avôs ou anos de propostas de negócios da sua empresa. E ainda sobra espaço para você trabalhar no livro que está escrevendo. Você pode fazer o upgrade para 25 GB por R$ 2,49/mês, 100 GB por R$ 4,99/mês ou até 1 TB por R$ 49,99/mês. Com o upgrade para uma conta paga, o espaço de armazenamento da sua conta do Gmail também aumenta para 25 GB.

O Google Drive foi projetado para se integrar completamente à sua experiência com o Google. Você pode compartilhar fotos do Drive no Google+, e logo também será possível anexar arquivos diretamente a e-mails no Gmail. O Google Drive também é uma plataforma aberta. Assim, estamos trabalhando com outros desenvolvedores para que seja possível enviar fax, editar vídeos e criar modelos de websites diretamente no Drive. Para instalar esses aplicativos, basta acessar a Chrome Web Store. E fique de olho em aplicativos ainda mais úteis no futuro.

Isto é apenas o começo para o Google Drive, ainda há muito por vir.

Além dessa novidade, que já é uma grande coisa, veio também o anúncio do aumento do espaço disponível para usuários do Gmail, de 7,5 GB para 10 GB:

Today, we're happy to announce that we're increasing everyone's free storage in Gmail from 7.5 GB to 10 GB (and counting) to celebrate today's launch of Google Drive. The increase will take effect over the next 24 hours. We hope you all enjoy the little bump!

É isso aí... Espero que tenham gostado da novidade, assim como eu gostei.

Até a próxima.

Instalação do Joomla! 2.5 no Slackware 13.37

2012-03-18T00:12:00.000-03:00

Para o funcionamento do Joomla! é preciso ter o MySQL, o Apache e o PHP corretamente configurados.

Já tratei desses assuntos em outros post aqui mesmo no blog, então não duplicarei as explicações, mas indicarei os links quando e onde for necessário.

Preparação do ambiente

Configure o MySQL conforme os passos do post Configuração do MySql no Slackware.

Conecte-se ao MySQL

mysql -u usuario -p

Será solicitado que você digite a senha do usuário.

Crie o banco de dados para o joomla

create database joomla;

Crie o usuário para o joomla e conceda à ele as permissões necessárias sobre o banco

CREATE USER 'joomla'@'localhost' IDENTIFIED BY 'senha';

GRANT ALL PRIVILEGES ON joomla.* TO 'joomla' IDENTIFIED BY 'senha';

Execute os passos do post Configurar PHP e Apache no Slackware 13.37.

Instalação do Joomla!

Baixe o pacote de instalação "2.5.3 Full Package" no site http://www.joomla.org/download.html

Descompacte o arquivo na pasta /var/www/htdocs

unzip Joomla_2.5.3-Stable-Full_Package.zip -d /var/www/htdocs

Para proceder com a instalação, acesse o endereço http://localhost.

A instalação é bem simples, pois é realizada através de um wizard, onde tudo o que é preciso fazer é responder à "perguntas".

No Passo 1, é preciso selecionar o idioma utilizado na instalação.
O Passo 2 fará uma verificação do seu ambiente. Se tudo estiver OK, então é possível continuar com a configuração.
Os termos de utilização do Joomla! são exibidos no Passo 3. Para continuar, é preciso concordar com ele.
A configuração do banco de dados é realizado no Passo 4. Selecione a opção MySQL no campo Database Type. Informe também o usuário e senha criados para a instalação do Joomla!. As demais informações podem ser deixadas como estão.
Para ambientes de desenvolvimento e testes, é possível deixar as configurações de FTP de lado. Para isso, no Passo 5, deixa o campo Enable FTP Layer como No.
Um site será criado no Passo 6. Para isso o instalador solicitará algumas informações, como o nome do site, usuário e senha do administrador, além do email.
A instalação estará concluída no Passo 7, mas antes de poder acessar o site criado, é obritatória a remoção da pasta de instalação. Clique no botão Remove Installation Folder. Caso a remoção automática não funcione, basta remover a pasta instalation, em /var/www/htdocs.

rm -rf /var/www/htdocs/installation

Para acessar o site criado, acesse http://localhost
O console de administração pode ser acessado através do endereço http://localhost/administrator

Espero que o post seja útil.

Até a próxima.

Referências:

http://www.upubuntu.com/2012/02/how-to-install-joomla-25x-on-ubuntu.html

http://www.siteground.com/tutorials/joomla25/installation.htm

Configurar PHP e Apache no Slackware 13.37

2012-03-17T22:52:00.000-03:00

Para quem não sabe, o Apache é um servidor web, o qual te permite publicar páginas em sites.

O Apache sozinho é capaz de disponibilizar páginas estáticas, mas para se ter um site mais interessante, seria legal que as páginas pudessem ter conteúdo dinâmico, e e aí que entra em cena o PHP.

O PHP é uma linguagem de script que permite a criação de sites com páginas dinâmicas, permitindo que os dados à serem exibidos sejam recuperados de bancos de dados ou outras fontes.

Para que o PHP e o Apache trabalhem juntos, é preciso executar algumas configurações.

Uma instalação full do Slackware já traz o Apache e o PHP instalados.

Importante: todos os passos devem ser executados logado como root.

Para habilitar a execução de scripts PHP no Apache, edite o arquivo /etc/httpd/httpd.conf

Localize a linha # Include /etc/httpd/mod_php.conf e remova o comentário.

Para isso, basta remover o # no começo da linha, ficando assim

Include /etc/httpd/mod_php.conf

Localize a linha DirectoryIndex index.html e altere-a, deixando assim

DirectoryIndex index.html index.htm index.php default.htm

Salve o arquivo.

Para que o Apache seja executado, é preciso dar conceder permissão de execução para o arquivo /etc/rc.d/rc.httpd. Para isso, execute

chmod +x /etc/rc.d/rc.httpd

Inicie o Apache executando

/etc/rc.d/rc.httpd start

Usando um browser qualquer, acesse

http://localhost

Se tudo estiver certo, você deverá ver a mensagem

It works!

Com o Apache funcionando, agora só falta testar a configuração do PHP.

Para isso, crie um arquivo chamado info.php na pasta /var/www/htdocs, contendo o seguinte

<?php

phpinfo();

?>

Salve o arquivo e acesse o endereço

http://localhost/info.php

Se tudo estiver configurado corretamente, você verá algo semelhante á imagem abaixo

Pronto, seu Apache está configurado para funcionar com o PHP.

Até a próxima.

Referência:

http://www.linuxquestions.org/questions/slackware-14/how-to-run-apache-php-mysql-on-startup-and-install-phpmyadmin-slackware-12-2-a-693708/