The software industry has long been monopolised by one provider. As Bob Young explains in this video, traditional software only gives you a certain amount of room to move whereas open source software is a completely different model.

There are two reasons this video may be relevant to your start up business. First, thinking about the software you need to make your business operate smoothly, is it worth considering the open source route for any of your key applications? Second, what can your start up business learn from the closed vs open source software model?

Vai um café ai?

Um SysAdmin que não utiliza nenhuma ferramenta de monitoramento em seus servidores, está correndo um grande risco. Primeiro por não ter dados mais concretos sobre o desempenho normal de seus “filhotes”. Segundo que ele não pode prever uma falha, já que pode não conseguir visualizar que o número de requisições ao Apache estão crescendo muito rapidamente, por exemplo, ou que o consumo de memória da JVM do tomcat está fora do normal.

Ferramentas de monitoramento é o que não falta no mercado, tanto proprietárias quanto opensource. Entre elas, posso citar: Cacti, Nagios, Munin, Ganglia, Query Analyzer (MySQL – proprietário), Zenoss, etc. Estes são os que eu lembro de cabeça, mas uma busca no Google pode encontrar muitas outras ferramentas. IMHO estatística nunca é demais. Quanto mais dados sobre o desempenho dos servidores que eu cuido eu tiver, melhor será a decisão que eu vou tomar. Tenho meu planejamento para o blog, posts específicos de cada ferramenta que eu utilizo. Espero conseguir fazer todos eles…

Ultimamente tenho trabalho com servidores JAVA. E JAVA, se você não controlar, pode dar muita dor de cabeça, principalmente pelo uso descontrolado de memória. Sem contar que quanto melhor tunado o servidor JAVA estiver, melhor vai ser a performance da aplicação. Como eu precisava de uma ferramenta que me permitisse visualizar o comportamento do servidor, fui atras de alguma q atendesse minhas necessidades. Encontrei o santo JCONSOLE, que já vem com o próprio JAVA. Ele tem tudo que eu precisava. Monitora a memória (Utilização, Garbage Collector, Pool), Threads e Classes.

Para que eu consiga acessá-lo remotamente, preciso adicionar alguns parâmetros na inicialização do meu Application Server. Neste exemplo vou usar o Tomcat, mas acredito que todos os Servlets JAVA aceitem os parâmetros iguais aos que serão apresentados aqui. (Utilizo a mesma configuração no Resin por exemplo)

A configuração consiste em 3 passos:

1. Setar os parametros na variável CATALINA_OPTS;
2. Criar os arquivos de controle de acesso jmxremote.access e jmxremote.password
3. Reiniciar o serviço (tomcat)

1. Setando os parâmetros da variável CATALINA_OPTS:

As opções que vamos incluir nesta variável são:

• -Dcom.sun.management.jmxremote                     # permite o monitoramento da jvm remotamente
• -Dcom.sun.management.jmxremote.port=9099      # porta que  serviço irá rodar
• -Dcom.sun.management.jmxremote.ssl=false        # não utiliza SSL
• -Djava.rmi.server.hostname=meuservidor.com.br  # nome do host

Como aqui eu tenho um script de inicialização do tomcat, eu adiciono estas opções direto no script que fica no /etc/init.d, adicionando a seguinte linha ao script:

Se você não tiver um script de inicialização, você pode criar e exportar a variável na mão antes de iniciar o tomcat, ou colocar a linha acima no arquivo /etc/enviroment, ou no /etc/profile, notando que o profile só é executado quando o usuário faz login na máquina. Feito isso, vamos a próxima parte.

2. Criando os arquivos de controle de acesso:

Como bom SysAdmin, eu quero que o acesso as informações da JVM tenham acesso restrito. Para isso, vamos criar os arquivos que irão controlar esse acesso. Esses arquivos ficam armazenados dentro do diretório do JAVA, e toda vez q alguma aplicação que está com o jmxremote habilitado utilizar autenticação, ele irá consultar estes arquivos, que são o jmxremote.access e jmxremote.password. Uma informação adicional é que eu posso dizer, utilizando outras opções setadas na variável CATALINA_OPTS, quais arquivos o java deve consultar para verificar as permissões de acesso, mas nesse exemplo, esta opção não vem ao caso.

Então, vamos entrar no diretório onde ficarão armazenados os arquivos de controle de acesso:

E agora criamos os arquivos. O conteúdo do arquivo é tão simples, que podemos utilizar o comando echo para cri-alos, já com o conteúdo desejado. neste exemplo, quero criar dois usuários, um com permissões de leitura, e outro com permissão de leitura e escrita:

Cuidado com os caracteres “>” e “>>” para não sobrescrever o conteúdo do arquivo no segundo comando. Mesma coisa para o arquivo que armazena as senhas:

A permissão destes arquivos deve ser modificada paa 600, portanto:

3. Para completar, reiniciamos o serviço:

ou

ou

Feito isso, verifique se o tomcat iniciou corretamente, conferindo se o processo foi criado, e dando uma olhada no log:

Se estiver tudo ok, você já pode se conectar ao servidor utilizando o jconsole.

PS.: Os dados coletados durante a execução do jconsole, não são armazenados. Portanto, se você desligá-lo, e ligá-lo novamente, os dados obtidos na última execução do programa não estarão mais lá, e a timeline fica vazia outra vez.

[]s

Intel and HP Customer Success Story:

Customer: Arabian Automobiles

Business Challenge: Arabian Automobiles needed to transform its business technology infrastructure to support double-digit growth. This required increased performance, reliability, and scalability while adhering to open-standards based architectural principles

Solution: Following internal architectural principles and based on the recommendations of HP Services and Intel, Arabian Automobiles implemented Intel® Itanium processor–based HP Integrity servers running Red Hat Enterprise Linux at the database tier and HP ProLiant server blades based on Intel® Xeon® processors at the application tier

Software: Red Hat Enterprise Linux, Oracle E-Business Suite: 38 modules with 20 additional major vertical extensions that support all business units, Oracle 9i RAC

Hardware: HP Integrity rx7640 Servers with Intel Itanium 2 processors, HP BL480c Server Blades with Intel Xeon processors, HP StorageWorks Enterprise Virtual Arrary

Benefits: Improved customer satisfaction by 15 percent, increased process automation to 80 percent from 40 percent, improved availability to 99.2 percent from, simplified management of IT with Red Hat Enterprise Linux on standards-based Integrity servers with Intel Itanium 2 processors. This provided a reliable, high-performance, and highly scalable infrastructure for Oracle® E-Business Suite and the integrated application modules running all of the company’s business units

Download the Case Study PDF at Intel.com

Background: One of the largest automobile distributors in the Middle East and the sole distributor for Nissan, Infiniti, and Renault in Dubai and the Northern Emirates. The flagship company of the AW Rostamani Group, Arabian Automobiles believes its greatest asset is ensuring that every customer can leave any of its company showrooms with confidence that they are receiving the world’s finest driving technology backed by a level of service and support second to none.

it *i mean this post* might be helpful for you, cuz HP corp is soooo agressive and cruel and made sooooo suberb and soooo ultranew laptop which is sooo thin that almost ALL linux developers forgot that it exists and it newer hardware also needs support…

OK we got no CDrom, we got USB’s and make them bootable with help of this tool

SOME links:
laptop

dv2 series review

something interesting about older model but useless for me

Things I / we tested *we = me and Pavel*

Fedora 11 – livecd works ok (ok means RUNS, but has no wifi), when trying to install crashes on partitioning. Same things with Fedora dvd and beta releace ver 12 livecd & dvd. But: once somehow I installed version 11 on my poor entire drive, and even updated to 12, but had no wifi, replaced kernel and lost my ati driver and had awful troubles with ATI graphics. But no way when partitioning and leaving space to other opsystems, have no ideas what to do. Tried to ask for help @fedoraforums, got no useless stuff. my post at FF

Other RedHats i tried are CentOs and some strange enterprise linux version 5 o_O (the last one was so evil : it tried to erase all my hard drive’s data – windows 7 and two installed S.T.A.L.K.E.R. games)

Then things went somekinda Debianistically,..
Tried crunchbang linux, it worked as it is, out of the box, BUT audio worked only with headphones, OK… forgot to mention: hibernate and sleep functions made him sleep forever, never was able to resume

Fail: linux mint fluxbox edition wasn’t even able to boot… (but booted ok on my second computer)
Other installations that failed:
zenwalk (mini slackware)

Ubuntu’s
Ubuntu server editions 9.10 (karmics) were not able to boot cuz of wrong boot device (i had no idea to tell them that i install from usb and have no cd/dvd drive, so we didn’t understood each other, stupid i, stupid them)
We were so tired that decided to installUbuntu karmic koala one week ago it didn’t supported newer broadcom (ok i used ndiswrapper but this is annoying – enabling hardware drivers each time i log into my system). Strange that some users were saying it does not boot at all … but today… WE GOT THIS!!”

PWNED. so it worked perfectly… runs perfectly.. SINCE TODAY. and even sound works out of the box! Strange : crunchbang is ubuntu based but has no speaker sound..

OK, GL and HF, have lot of things to do on my brand fresh karmic laptop, thanks to Ubuntu developers…
PS windows 7 works perfectly out of the box, if you want to know

S alah satu pertanyaan yang kerap di tanyakan pemilik warnet saat ingin bermigrasi ke Linux adalah billing warnet. Saat ini sudah tersedia beberapa aplikasi billing warnet di Linux yang dapat digunakan. Salah satunya adalah BiOS (Billing Open Source), aplikasi billing warnet buatan dalam negeri.

BiOS merupakan aplikasi berbasis web (PHP dan MySQL), dan berjalan di atas aplikasi webserver seperti Apache atau Lighttpd. BiOS menggunakan konsep client-server. Aplikasi server dapat dipasang di proxy Internet. Client dapat memantau durasi pemakaian dan biaya yang dikeluarkan via  browser, dalam hal ini menggunakan aplikasi Firefox
yang telah dimodifikasi sedemikian rupa (seperti pengaturan border window) oleh BiOS.

Fitur dan kelebihan BiOS:

Fitur dan kelebihan BiOS dibandingkan billing lain:
* Hadir dengan Lisensi Open Source, GNU/GPL versi 3
* Sudah pernah diuji di Warnet Linux selama 2 tahun
* BiOS dapat berjalan di hampir semua sistem operasi – cross platform, baik client maupun server (linux, windows, freebsd, etc)
* Memiliki interface yang sederhana, mudah penggunaan untuk client dan operator.
* Tidak perlu instalasi (compilasi) di client. Sangat mudah diinstal. karena cukup diinstal di komputer operator atau di proxy server yang telah dilengkapi dengan webserver (ex: apache server, lightttpd, dll), php dan database mysql. Hampir semua distro linux saat ini menyediakan aplikasi built-in ini.
* Aplikasi sangat ringan, responsif, hanya membutuhkan space < 550Kb dan minim memakai bandwidth jaringan lokal.
* Dapat diakses dari modus GUI (xwin: kde, gnome, fluxbox, icewm, jvm, dsb)
* Terdapat akses berjenjang untuk client, operator dan administrator
* Unlimited client
* AJAX
* Apabila komputer billing terhubung ke internet, pemilik dapat memantau dan mengakses cpanel billing dari manapun. Dengan begitu dia tetap dapat memantau kondisi warnetnya, dsb.

Berikut Penghargaan yang diterima:
1. Pada tanggal 11 Maret 2008, billing ini berhasil menyabet penghargaan sebagai “The Best Innovation Software” pada kompetisi open source day yang diselenggarakan oleh POSSNetwork UGM
2. Pada Agustus 2008, BiOS berhasil masuk sebagai 4 besar nominator kategori e-Business/KUKM pada ajang Indonesia ICT Award 2008 yang diselenggarakan oleh Departemen Komunikasi dan Informatika (Depkominfo) RI.

Download BiOS 1.4 (zip)

Download BiOS 1.4 (tar.bz)

Download Tutorial BiOS dan Implementasinya (part 1)

Download Tutorial BiOS dan Implementasinya (part 2)

Sumber: Baliwae dan InfoLINUX

PHP adalah bahasa pemrograman favorit saya. Selain karena ringan, PHP juga bersifat open-source, jadi kita dapat menggunakan script PHP tanpa dipungut bayaran. Berdasarkan pengalaman, cara termudah untuk belajar PHP adalah dengan konsep “learning by doing” maupun “learning by example”. Untuk memudahkannya, berikut contoh-contoh kasus beserta penerapannya pada PHP.

1. PHP memiliki banyak fungsi untuk melakukan operasi angka. Berikut beberapa contoh penerapan operasi angka di PHP. Dalam contoh di bawah ini, akan dikelola suatu angka yang diberikan dengan menggunakan tanda koma untuk penanda bilangan, dan hanya menggunakan dua angka di belakang koma.

Download Beragam Operasi Angka Menggunakan PHP

2. Dalam keseharian melakukan proses pembuatan aplikasi berbasis PHP, mungkin Anda sering bertemu dengan operasi string. PHP memiliki kelengkapan fungsi untuk memproses suatu karakter atau kata yang terdapat pada suatu string.  Berikut tutorial berbagai operasi string pada PHP.

Download Berbagai Tip Operasi String

3. Berikut contoh aplikasi polling sederhana juara Liga Inggris 2007/2008 yang datanya di simpan dalam sebuah file teks.

Download Aplikasi Polling

4. Apabila Anda ingin memproteksi script PHP Anda atau sekadar ingin menghilangkan ketergantungan pada interpreter PHP, maka salah satu cara yang bisa dilakukan adalah dengan mengompilasi ke native binary dengan Roadsend PHP compiler.

Download Kompilasi Script PHP

5. Apakah Anda mempunyai koleksi video yang cukup banyak dan merasa kurang puas kalau harus menikmati video-video tersebut sendiri? Ataukah Anda ingin membuat video streaming server semacam YouTube? Dengan menggunakan web based application bernama PHPmotion, impian Anda akan menjadi kenyataan.

Download Tutorial PHPMotion

6. Mungkin Anda pernah berkunjung ke suatu situs seperti Google Analytics (https://www.google.com/analytics) dan sejenisnya yang dapat mendeteksi IP pengunjung situs secara otomatis. Untuk membuat fitur situs seperti ini,
Anda dapat memanfaatkan database GeoIP.

Download Tutorial Deteksi IP Pengunjung

7.  Selain memiliki beragam fungsi untuk melakukan operasi string, PHP juga memiliki banyak fungsi untuk melakukan operasi angka. Berikut beberapa contoh penerapan operasi angka di PHP.

Download Tutorial PHP String

8.  Program fortune akan menampilkan database fortune secara acak. Di workshop ini, kita akan menampilkan output program fortune di web dengan teks berwarna-warni setiap karakternya.

Download Tutorial Teks Fortune

9. Pada suatu situs komunitas, kita sering menemukan halaman untuk meng-upload file yang bertipe *.jpg atau *.gif. Kali ini, kita akan membuat sebuah halaman untuk kebutuhan upload file yang bertipe *.jpg atau *.gif.

Download Tutorial Membuat Halaman Upload

10. Dalam keseharian melakukan proses pembuatan aplikasi berbasis PHP, mungkin Anda sering bertemu dengan operasi string. PHP memiliki kelengkapan fungsi untuk memproses suatu karakter atau kata yang terdapat pada suatu string. Berikut beberapa contoh penerapan operasi string di PHP.

Download Berbagai Tips Operasi String di PHP

11. Ketika chatting dengan program instant messenger atau melakukan posting di forum, kerap kita menemukan beberapa untaian karakter tertentu secara otomatis akan diterjemahkan ke icon/smiley tertentu, misalnya karakter ini atau ini . Kita akan membuatnya di workshop ini.

Download Tutorial Konversi Teks ke Smiley

12. Untuk menangani suatu aplikasi yang berkenaan denganfile dan direktori di PHP, Anda pasti membutuhkan fungsi-
fungsi yang berkenaan dengan penanganan file di PHP. Berikut beberapa tip dan trik operasi file di PHP.

Download Tip Trik Operasi File di PHP

13. Di workshop ini, kita akan menggambar segitiga yang terbentuk dari karakter bintang (*) dengan masing-ma sing bintang diwarnai acak. Ukuran segitiga tersebut bisa diatur dari query string.

Download Membuat Segitiga Bintang Berwarna di PHP

14. Trik PHP: masalah distribusi dan proteksi source code. Berikut trik membangun aplikasi web menggunakan bahasa yang interpreted (dan relatif tidak banyak aturan), lantas diprotek sana sini (supaya source code tidak bisa dilihat), atau dengan yang compiled dan relatif lebih banyak aturan.

Download Tutorial Proteksi Script PHP

Selamat belajar dan Happy coding

Sumber: InfoLINUX

grras provide you RHCE Exam dates (11 nov 2009,27 nov 2009 (morning),27 nov 2009) in jaipur .

contact detail–
219, Himmat Nagar,Behind Kiran Sweets,
Gopalpura Turn, Tonk Road, Jaipur(Raj.)
Tel: +91-141-3136868, +91- 9887789124, +91-9352767438
Email: info@grras.com
Website Source RHCE Exam dates in jaipur rajasthan india

JAKARTA, KOMPAS.com – Diam-diam, si Topi merah alias Red Hat mulai banyak dipakai di dunia, dan juga di tanah air. Di Indonesia, salah satu perusahaan besar yang akan menggunakannya adalah Bursa Saham Indonesia.

“Jakarta Stock Exchange (Bursa Efek Indonesia) akan pakai RedHat. Ini bukti kepercayaan, karena perusahaan saham kan harus online terus,” kata Patrick Lim (General Manager, ASEAN, Red Hat Asia Pacific Pte Ltd).

Selain Bursa Efek, menurut Lim, ada dua bank besar yang berniat menggunakan sistem operasi open source tersebut. “Sayang kami belum mendapatkan persetujuan dari mereka untuk mengumumkan namanya,” kata Patrick meminta maaf.

Patrick yakin Red Hat akan berkembang pesat dan digunakan oleh banyak perusahaan di tanah air. Apalagi perusahaan yang berdiri sejak tahun 1993 ini sudah memiliki dua distributor (ECS dan CTI) dan juga dua Advanced Business Partner (Berca dan Ecom) di tanah air.

“Kunci sukses di Indonesia adalah pengembangan pasar. Kerjasama dengan para ISV agar sesuai dengan pasar setempat. Juga kepemimpinan pasar. Kami sudah punya 30 – 40 Red Hat ready-partner,” tandas Patrick.

Koha is a Maori word meaning (if memory serves) “gift.” It is also the name of an open source library card catalog system developed in New Zealand. We used this at the school in Vienna when we lived in Virginia, but I found it pretty difficult to get it set up. It wants to run under Debian Linux, and I have always run Redhat Linux (or one of its variants). They are just different enough to make getting Koha to run on Redhat is a herculean feat. Back then I gave up. I decided to run it on a dedecated PC, got hold of one, and handed it over to a friend who was a Debian master. He installed Debian and then got Koha going on it. Then Va keyed in the data (something like 9000 books which took about six months).

Now Beth’s school needs a card catalog for their library. The Conference has recommended a commerical software package, but there are three major problems with that. First, it is certain to be Windows-only, and we do not have a single WIndows server on the network (and I REALLY don’t want one either). Second, it costs over $900, which is a lot of money when Koha works so wonderfully (once installed) and costs nothing. Third, $900 is probbly the cheapest commercial card catalog money can buy, and if it’s anything like the rest of the software recommended by the Conference, it is going to be just awful. I don’t know WHY they aren’t on the open source wagon train, but they sure ought to be.

Open source software is developed by people who have a passion for software. They write the code in their own free time, and they release it when it is ready to be released. It is not written by someone who would rather be doing something else, and released when the schedule says it should be released. In my experience, the open source methodology provides a far superior solution, and in many cases far outstrips even the highest priced commercial offerings.

But as I said earlier, Koha doesn’t want to run on Redhat. I spent some time at the school tonight after work trying to get the latest version of Koha to run on my Redhat server there, but it put up a good fight. So I’m not going to resist. Instead I am going to get my hands on an old PC, install Debian on it, and use it as a dedicated card catalog server.

I was installing the Oracle 10 in RedHat 5, everytime we install Oracle we need to follow some procedures regarding the installation of pre-required packages and setting up some kernel parameters.

I went into the problem that not all the packages from the documentation were available, I was getting the following errors with a some of them:
Checking for compat-gcc-c++-7.3-2.96.128; found Not found. Failed <<<<
Checking for compat-libstdc++-devel-7.3-2.96.128; found Not found. Failed <<<<

Or:
yum install compat-gcc

Loading "security" plugin
Loading "rhnplugin" plugin
rhel-i386-server-5    100% |=========================| 1.3 kB    00:00
Setting up Install Process
Parsing package install arguments
No package compat-gcc available.
Nothing to do

What can I do?, well, with the installation of the oracle-validated package it will automatically install the requirements for Oracle Databases.
This package is included wit RHEL 5.2 onwards and with access to the RHN or ULN (unbreakable Linux Network).

yum install oracle-validated
or
up2date oracle-validated

By the time I installed it I already had created the oracle user and groups and configured the kernel parameters, but this package will do that too….I think that I will bring one of my VM templates to see it fully working.

Also there is a Public YUM server that we can use to get oracle packages. Go to http://public-yum.oracle.com/ and follow the instructions!

Good luck!

Bagi para administrator warnet atau kantor, pasti pernah berpikir bagaimana caranya agar loading situs yang dibuka oleh user terasa lebih cepat, dapat memblok situs-situs porno yang sering membawa spyware, membatasi ukuran download file user, autentifikasi user mana saja yang diperbolehkan browsing, melakukan redirect suatu situs porno ke situs yang lain, dan sebagainya.

Jika itu permasalahannya, maka  jawabannya adalah si administrator  dapat membuat sebuah mesin proxy server untuk menjembatani hubungan dari Internet ke user. Mesin proxy ini akan bertindak sebagai filter paket yang datang dari Internet, baik itu melalui port http atau ftp, sebelum sampai ke user. Salah satu software proxy terbaik yang ada di GNU/Linux adalah Squid. Squid adalah software proxy server open source dengan banyak fitur.

Pada artikel kali ini, penulis akan menjelaskan cara konfigurasi Squid untuk:

1. Memberi hak akses Internet agar hanya dapat digunakan oleh komputer dengan nomor IP tertentu.

2. Memblok situs terlarang secara manual.

3. Memblok situs terlarang dengan meng-gunakan program redirector Squid-Guard.

4. Memblok banner menggunakan redirector adzap.

5. Membatasi ukuran file (kuota) yang bisa didownload oleh user pada interval waktu tertentu.

6. Autentifikasi user.

7. Transparent Proxy.

Adapun distro yang dipakai penulis dalam menyusun penulisan ini adalah Fedora Core 3, dan seharusnya dapat diterapkan juga pada pengguna distro lainnya.

Download Tutorial Lengkap

sumber: InfoLINUX

Editare il file my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
[innodb]
innodb_data_file_path = /ibdata/ibdata1:2000M;/dr2/ibdata/ibdata2:2000M:autoextend
innodb_data_home_dir = /var/lib/mysql
#
# Set buffer pool size to 50-80% of your computer’s memory
innodb_buffer_pool_size=256M
innodb_additional_mem_pool_size=20M
#
# Set the log file size to about 25% of the buffer pool size
innodb_log_file_size=64M
innodb_log_buffer_size=8M
#
innodb_flush_log_at_trx_commit=1

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

el dia de ayer, 3 de noviembre del 2009, RedHat libero lo que habia prometido el pasado febrero del 2009, y que es una plataforma “full” de virtualizacion, similar a las que se encuentra uno con VMware, Citrix, Microsoft, Oracle, y que aun no consigue pero va en buen camino Parallels

Esta plataforma de virtualizacion contiene un hypervisor (concepto similar a VMware ESX o Citrix XenServer), que se conocera como Red Hat Enterprise Virtualization Hypervisor orientado a hostear Linux y Windows, que sera “light” y de alto performance, y tambien tendra su consola de administracion, que se conocera como Red Hat Enterprise Virtualization Manager for Servers. la cual proveera la administracion centralizada para ambientes de mas de 2 nodos. (cabe notar que mucha de la tecnologia que se adquirio de Qumranet esta aqui).

Y para los que desean mas acerca de esto, RedHat esta trabajando en el hypervisor para “clientes” es decir para PCs/Laptops (aqui es donde aplica lo de Qumranet), y que competiria directamente con VMware, Citrix y Phoenix (o si, Phoenix tiene su hypervisor para PCs/Laptops veanlo aqui: http://www.hyperspace.com/)

para ver el anuncio ir aqui: http://www.redhat.com/about/news/prarchive/2009/red-hat-enterprise-virtualization.html

que implicaciones tiene esta solucion??  pues que habra mas competencia por el mercado no solo de virtualizacion, sino de Cloud Computing, lo cual es bueno para los clientes (y ahora VMware, Microsoft, Oracle, Novell, Citrix, Parallels tienen una razon por la cual preocuparse en serio, RedHat is now in Virtualization Town with full hypervisor!!)

Saludos

Стоит у меня в комнате старенький компьютер, который у меня ТИПА тестовый сервер. Стоял без дела месяц, забыла пароль от рута, начала ожесточенно гуглить (юзать всякие посторонние фишки – муторно – я вытащила дисководы, комп старый и с флешки не грузит).

Итого, оказалось что…

Надо просто-напросто:
1.бутнуться в груб (у меня это было или ф или ф6, уже забыла)
2. там выбрать ядро с которого мы хотим загрузиться.. и нажать Е
3. приписать в конец после слова quet “1″ (тупо единицу без кавычек)
4. enter – b – enter

Что мы сделали? Мы вышли в страшный чёрный экран и теперь мы в сингл юзер моде.
Меняем пароль:
#passwd
(только не надо писать с решеточкой, как мой нуб-одногруппник))
после
#reboot

ВСЁ!
П.С. – логично, то будет работать на всех красных шапках ака RedHat’ах.

Долгой вам памяти!