SysAdmin

Ubuntu 10.04 hit by major bug on release day : " Filed under: OS Updates It's the end of April. Spring is here, and so is Ubuntu 10.04. Or at least, that's the plan. Canonical's rigid release schedule is awesome for many reasons -- one of which is the amount of excitement it generates around each new Ubuntu release. However, I don't think this is the kind of excitement Mr. Shuttleworth had in mind when the 'fixed schedule' policy was set. As it turns out, after the final release ISOs were already created (or 'spun' in Ubuntu geek-speak), a critical bug came up; and no, I don't mean something like 'OMG, we put the window buttons on the wrong side!'. I mean something like 'once you install Ubuntu, you will not be able to boot your other operating system.' Oops. It doesn't kill the other OS, and it's fixable when it happens (it's a problem with the GRUB2 bootloader configuration), but it's certainly not something yo

Recover Data Like a Forensics Expert Using an Ubuntu Live CD : " There are lots of utilities to recover deleted files, but what if you can’t boot up your computer, or the whole drive has been formatted? We’ll show you some tools that will dig deep and recover the most elusive deleted files, or even whole hard drive partitions.

10 security books for the future : " An ever-evolving list of books “to be read” is a constant temptation. Chad Perrin hopes his top 10 list of security books he wants to acquire might tempt some of his readers, too.

10 cool registry edits and tweaks for Windows XP : " Here are a few Windows XP registry edits you can use to make adjustments that go beyond simple Control Panel settings.

Using netstat : " As promised (in my article “ How do I find my network information in Linux? “) I am going to introduce you to the netstat command. This command is a very useful tool for discovering networking information such as routing tables, network connections, interface statistics, masquerade connections, and multicast memberships. But it’s not quite as simple to use as some of of the other “discovery” tools (such as ifconfig). With netstat you really do need to know what you’re looking for and how to find it. This article will help you to understand just that.

Sony shutting down Japanese floppy disk sales by March 2011, kills a tech dinosaur : " Believe it or not, Sony managed to shift 12 million 3.5-inch floppy disks in Japan last year -- presumably to die-hard old schoolers . Alas, time waits for no one, and the venerable data transporter that started its life way back in 1981 is going to all but cease production by March of next year. Sony was the last of the major manufacturers to keep churning these bits of plastic out, but soon that too shall be no more. Having already shut down operations in most of the world, it's now noted the end of life for its domestic market, and thereby effectively consigned the floppy to the past. Good riddance, you might say, but we still remember fondly the wonder we experienced upon tearing apart our first 5.25-inch floppy. Ah well, the diskette goes the way of the cassette , guess that was predictable. Sony shutting down Japanese floppy disk sales by March 2011, kills a tech dinosaur originally a

Norton Power Eraser é um programa de freeware portátil para o sistema operacional Windows que foi projectado para remover  software malicioso do tipo crimeware que esta profundamente enraizado e difícil de remover de um sistema de computador.

Estava eu hoje a ver os logs dos meus DC quando apanhei esta mensagem "There are multiple accounts with name HOST/machinename of type DS_SERVICE_PRINCIPAL_NAME.ost/mycomputer.mydomain.com". A explicação do erro pode ser consultada aqui Article ID: 321044 Basicamente, o que erro quer dizer é que existe duas contas de computador que estão em conflito. Para corrigir o problema bastará procurar quais as contas recorrendo à aplicação ldifde .exe exemplo: ldifde -f check_SPN.txt -d "DC=mydomain,DC=com" -l servicePrincipalName -r "(servicePrincipalName=host/mycomputer.mydomain.com)" -p subtree Substitui DC=mydomain,DC=com pelo do root name space correto e pelo FQDN da máquina da mycomputer.mydomain.com Em alternativa podem executar este vbs . Depois de encontradas as contas, terá que apagar uma delas. Para tal executa a consola de Utilizadores e Computadores da AD, dsa.msc, procura a conta de computador e "delete".

10 ways to make your Samba life easier : " Samba allows Linux, Windows, and Mac to communicate with one another, but it has a reputation for being tricky to configure and administer. Here are some ways to reduce Samba headaches.

Ubuntu Server primed for the bigtime : " Ready for the RHEL world Next Thursday, Canonical will open the internet floodgates and allow end user downloads of Ubuntu 10.04 Server Edition, the latest and perhaps most significant release for servers in the British company's six year history.… Data Center Savings "

Create a Persistent Bootable Ubuntu USB Flash Drive : " Don’t feel like reinstalling an antivirus program every time you boot up your Ubuntu flash drive? We’ll show you how to create a bootable Ubuntu flash drive that will remember your settings, installed programs, and more!

Windows Processes

Deixo aqui uma lista de ferramentas que nos podemos socorrer quando necessitamos de reparar ou recuperar um disco ou sistema operativo ou limpar uma máquina que sofreu de uma ataque de viroses. 1: Knoppix Knoppix   e uma distribuição completa que corre apartir de um CD com um GUI muito intuitivo. Permite montar um drive e copia toda a informação nela contida. 2: Trinity Rescue Kit Trinity Rescue Kit   Capaz de correr apartir de uma pen USB, permite executar executar diversos antivirus numa máquina infectada tais como clamav, antivir, bitdefender. Esta distribuição não te Gui por isso requer algo conhecimento dos comandos de linux

Luckybackup: Linux backup made easy : " There are a lot of backup tools out there. From the overly simple to the overly complex. Many of those backup tools go unnoticed and unused. Some of them get recognized as the outstanding projects they are. One of those tools is Luckybackup. This tool was awarded Sourceforge’s best new project of 2009. There is a reason for that. Luckybackup is a simple to use backup tool that can backup both to a local machine and to a remote machine – with a user-friendly gui and all the features you would expect in a backup tool. You might think that Luckybackup is a tool only an end-user could love. Not so. Although Luckybackup is simple to use, open source, and free it’s a worthy candidate for business backup as well. Oh sure, you’re not going to image your machines with this backup tool, but you can backup your data. In this article I am going to show you how to install and use Luckybackup.

Pequena aplicações capaz de abrir um infindável tipo de ficheiros diferentes, tendo apenas um senão: no caso de tentarmos abrir um ficheiro do Microsoft Office, este apenas o fará se tivermos o MS Office instalado. Existe ainda a possibilidade de ir à pagina de plugins para extra funcionalidades

Save a Failed Hard Drive in Your Freezer, Redux [MacGyver Tip]

Google releases major overhaul of Google Docs; faster, more responsive, better collaboration : " It's hot off the press, and still being slowly unrolled, but the Google Docs blog has just announced some major changes to its office productivity suite of web tools . You can stop reading now and watch the video if you want to find out what's new, or read on for some bullet points! Faster -- what with Google Docs being entirely in the browser, things can sometimes get a bit slow with JavaScript doing the majority of the work. With this new version of Docs, pages will load faster, spreadsheets will manipulate more quickly. More responsive -- seemingly, Google's purchase of EtherPad was actually to bolster Google Docs rather than Wave! This new version of Docs features a more-responsive, real-time word processor -- you'll be able to experience collaborative projects character-by-character. Better collaboration -- the new version of Google Docs features a collabo

Fiber optic LAN and WAN cable basics pop quiz answers : " 1. Which of the following is a critical safety concern when working with or around LAN or WAN fiber optic cables? Hearing loss Burns to the hands Permanent eye damage (Correct) Exposure to noxious fumes

Jolicloud is a Nifty New OS for Your Netbook : " Want to breathe new life into your netbook? Here’s a quick look at Jolicloud, a unique new Linux based OS that lets you use your netbook in a whole new way. Netbooks have been an interesting category of computers. When they were first released, most netbooks came with a stripped down Linux based operating system designed to let you easily access the internet first and foremost. Consumers wanted more from their netbooks, so full OSes such as Windows XP and Ubuntu became the standard on netbooks. Microsoft worked hard to get Windows 7 working great on netbooks, and today most netbooks run Windows 7 great. But the Linux community hasn’t stood still either, and Jolicloud is proof of that. Jolicloud is a unique OS designed to bring the best of both webapps and standard programs to your netbook. Keep reading to see if this is the perfect netbook OS for you.

10 reasons why Windows Terminal Services is becoming more popular : " 1: The hardware has finally caught up When Terminal Services debuted with Windows NT, server hardware was hard pressed to support multiple server sessions. Furthermore, 10 Mbps networks were still the standard at that time and could easily become saturated by network-intensive applications, such as Terminal Services. Today, server hardware is far more powerful than it has ever been, and running multiple operating system instances on a server is the norm. Today’s servers are well equipped to handle the demands of hosting Terminal Service sessions.

Segundo parece a google já esta a preparar um corrente ao Ipad. Segundo consta o novo gadget não irá correr o OS Chrome mas sim o Android. Vamos esperar para ver... Fonte: Google Preparing iPad Rival [Google] :

Fonte: Windows 7 Tweaks Software Overview : " WinBubble Windows Little Tweaker

Firefox 3.6 Crashes 30% Less than 3.5 [Web Browsers] : " If you've noticed your Firefox installation seems a bit more stable since you upgraded to Firefox 3.6, you're not alone. According to statistics collected by Mozilla, Firefox 3.6 is 30 percent more stable than its predecessor, and Firefox crashes are down 40 percent across the board. Firefox-focused blog Mozilla Links reports that the, overall, crashes dropped 'from about 6.5 crashes for every 100 users, to around 2.5.' Even better: those numbers should drop even more significantly now once Firefox Lorentz's isolated plug-in architecture leaves beta and becomes the standard for the majority of Firefox users. [ Mozilla Metrics Blog via Mozilla Links ] More » "

Microsoft to bring Linux APT/RPM-like application publishing platform (CoApp) to Windows : " Filed under: Developer , OS Updates , Utilities , Windows , Microsoft , Open Source After a decade of vehement distrust for its open source cousin, Microsoft looks like it is finally ready to embrace one of the features that makes Linux and its variants so damn desirable. Speaking frankly, Garrett Serack of Open Source Development at Microsoft laments the current state of open source package management and installation on the Windows platform . It's time for things to change, he says -- and, if you're a developer or open source aficionado, the Common Opensource Application Publishing Platform (CoApp) does sound pretty damn compelling.

Hot 6 passwords that will make any IT security pro cringe: < password > < 666666 > < secret > < letmein > < insert expletive here > < insert preferred sports team name here > Password resources on TechRepublic: Download: End-user password security Help users create complex passwords that are easy to remember Fight back against bad password policy Securing end users’ pesky password problems Helping users remember their passwords Help consulting clients create strong password policies Here are a few other links that you should check out: Is Apple the Most Admired Company? It depends who you ask TechRepublic Questions of the Week - April 5, 2010 TR member Garden Club gallery TR Member pet pics TR Member tattoo pics TR Member costume pics If you’d like to contribute to the pics galleries, please send us your photos . Also, don’t forget to sign up for the TechRepublic Community Central newsletter !

Google Docs Windows Explorer Integration (Ask The Readers) : " Now that I have decided to run a computer system without local pdf reader installed I had to find another comfortable way of dealing with pdf documents. I’m currently using Google Docs for the purpose which is not that big of a nuisance because I have to open pdf documents rarely and I have the web browser open most of the time to access Google Docs in just a few clicks. One thing however that bothers me a little bit is that there does not seem to be a way to integrate Google Docs in Windows Explorer natively. Natively meaning without a software or application running in the background that provides that functionality. I have discovered several programs that can be used to send documents from Windows Explorer to Google Docs. These include Quick Tools for Google Apps or Google Docs Uploader but their functionality is only available for as long as the programs are running. I’m more looking for a solution that inte

Display Windows Program History With UserAssistView : " Windows maintains a list of programs that have been executed on the operating system in the Windows Registry. This Windows program history contains detailed information about the programs that have been launched by the active Windows user.

10 GMail Labs features worth enabling by Lee Mathews ( RSS feed ) Mar 20th 2009 at 11:00AM The GMail crew has been doing a great job of adding useful features of late -- some of them right into GMail, others in Labs. If you haven't clicked on the little green beaker in the top toolbar yet, there are plenty of excellent features worth turning on. Here are 10 that I find particularly useful.

Windows 7 Tweaks Software GigaTweaker : " Many users run a software like GigaTweaker right after installation of the operating system to perform a number of tweaks at once that would otherwise take longer to apply. Some might also use it after searching for a solution for a specific annoyance or problem that they have encountered while working with the operating system of their choice.

Acham que este gajo tem barras a mais no IE?

Qubes uses virtualization, sandboxing to deliver a more secure desktop OS : " It's probably a safe assumption that if a project to design a new operating system involved an experienced security researcher that the goal would be an OS which is darn near bulletproof. That's exactly what Joanna Rutkowska is gunning for with Qubes , which she's pegged for release later this year. Qubes is a bit different from the desktop OSes most of us are familiar with, though it looks similar. It's built on Fedora and Xen and aims to deliver a more secure desktop through the use of sandboxing and 'App VMs.' Each VM is isolated, though you're still able to do pass data between them (via secure copy and paste). There's a price to pay in terms of system resources for the added security, but it's reasonable. A typical App VM uses about 400MB of memory but can run a handful of apps in that space (e.g. Firefox, Thunderbird, and OpenOffice). Qubes is currentl

Finlândia – Correios acabam com cartas em papel : "Na Finlândia está a ser levada a cabo uma verdadeira revolução que deveria ser seguida por muitos outros países por esse mundo fora. A partir do próximo dia 12 e até ao final do ano um conjunto restrito de pessoas e empresas deixará de receber correspondência postal em papel passando esta a ser digitalizada e entregue em formato electrónico.

Default Password List DynDNS DNSstuff MX Lookup Network Abuse Clearinghouse Mail Relay Testing Broadband DSL Reports Bandwidth Calculator Network-Tools Speedtest.net          

tool URL 7-Zip is a file archiver with a high compression ratio. http://www.7-zip.org/ Acronis True Image with Universal Restore - Disk Imaging tool http://www.acronis.com/ Belarc Advisor - Audits installed software, list keys, hardware, Microsoft patches, and generates a report http://www.belarc.com/free_download.html Clonezilla is an OpenSource clone system with unicasting and multicasting! Goodbye to Ghost http://clonezilla.org CPUz. Accurate PC motherboard, RAM, graphics card details and MUCH more without opening up the box http://www.cpuid.com/cpuz.php cURL a command line tool for transferring files with URL syntax, supporting FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS and FILE. http://curl.haxx.se/ DBAN - Darik's Boot and Nuke (DBAN) is a self-contained boot disk that securely wipes the hard disks of most computers. http://www.dban.o

RJ TextEd: Free Text Editor with Syntax Highlighting and Code Folding : " Windows only I’m always on the look out for awesome text and code editors, but the percentage that turn out to be good versus the number I actually test is fairly low. RJ TextEd ranks pretty high in that list though. It’s free, portable, and has a very extensive list of features. In fact it has so many features that at first glance it may seem overwhelming.

FreeFileSync – Compare and Sync Folders : " Windows only One thing I’ve never taken lightly is making sure all of my most important data is backed up. Utilities like SyncBack have served me well over the years, and I’ve even gone as far as to buy a copy of the software for my primary PC. For my other computers I switch on and off between other tools, and one of the more recent ones is FreeFileSync .

Caros amigos e amigas, Comecem já a poupar $$$ para me oferecerem um destes :) Geek Gifts 2010: Alienware M11x gaming notebook : " Alienware has a reputation for making really nice gaming personal computers for what has been dubbed as the enthusiast market. In more common language, computer enthusiasts don’t mind paying more for hardware that meets a high standard for performance and style. Since my current personal Alienware gaming desktop is my fourth PC purchased from this company, I guess that makes me an enthusiast. But the Alienware M11x is a slightly different kind of notebook for the company. Oh sure, it still has a fast CPU and GPU, and it still rivals any other notebook when it comes to performance, but this Alienware is different because it is netbook-sized. Specifications and features

Process Explorer Updates, Adds More Great Features to the Killer Task Manager [Downloads] : " Windows only: Superior Task Manager replacement Process Explorer continues to improve on an already impressive set of features, this time with more informative tooltips, .NET process information, and other fixes. Process Explorer v12 adds a number of new features, including showing the tab title for IE8 processes so you can tell which one is hanging, displaying all svchost services in the process tooltip, a new .NET assembly tab that shows exactly which DLLs are being used to help troubleshooting problematic .NET applications, and plenty of other bug fixes and changes. It's a solid update to an already killer utility for dealing with runaway processes. Process Explorer is a free download for Windows only. Process Explorer [Microsoft via Cybernet News ]" Update Process Explorer v12's new server administration features : " —————————————————————————————

Use Vaseline To Make Scratched CDs Work Again [DIY] : " Rubbing Vaseline on scratched CDs to make them readable again is a new one to me, but Instructables has a DIY project up claiming it works perfectly. Mind you, they also say peanut butter works a charm too. Using a piece of cloth, the Vaseline can be slicked onto the scratched CD, and then rubbed off with some rubbing alcohol on a cotton ball, leaving the Vaseline in the scratches, filling them in. It won't remove the scratches completely—that would be a miracle—but it sounds like it does a nice job of filling them in to make the disc work again. [ Instructables via Lifehacker ]"