The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘*nix’ Category

Top Ten Mac OS X Tips for Unix Geeks – O’Reilly Media

Posted by jpluimers on 2013/05/06

This 5 year article from 2007 (which was an update for the 2002 version) is still very up to date in 2012: Top Ten Mac OS X Tips for Unix Geeks – O’Reilly Media.

Originally it was to promote Mac OS X for Unix Geeks – O’Reilly Media. In between the updates there was Mac OS X Panther for Unix Geeks, 2nd Edition – O’Reilly Media.

Now it is to promote Mac OS X for Unix Geeks (Leopard), 4th Edition – O’Reilly Media.

Note there is also a nice, but independent presentation with the same title from HTGR-MacOSX.

–jeroen

Posted in *nix, Apple, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Power User | Leave a Comment »

New Java update available: patch all your machines for yet another zero-day fix: Security Alert CVE-2013-1493

Posted by jpluimers on 2013/03/05

It starts to be not so funny any more: almost every week a new Java security update.

Time to update again, to stay secure and install the patch: Security Alert CVE-2013-1493.

On the funny side: Java 0day countdown.

–jeroen

via: Security Alert CVE-2013-1493.

Posted in *nix, Apple, Development, Java, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, OS X 10.8 Mountain Lion, Power User, Software Development, Windows, Windows 7, Windows 8, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Tagged: , , , , | 2 Comments »

openSUSE 12.x: “A plain `halt` will not shutdown the system properly.”

Posted by jpluimers on 2012/12/30

Just noticed that in openSUSE 12.x, A plain halt will not shutdown the system properly.
On my system, it would leave the screen as shown on the right:

Only halt -p works, none of the other hints in the shutdown does not power off thread work, nor the acpi=off or acpi=oldboot settings.

The odd thing: a plain reboot still works properly.

If someone knows a better workaround: please let me know in the comments.

I hope they will fix this in a future openSUSE version; at least for 12.1 they have a “CHECKIT” marker in the documentation, but it has disappeared as of the 2.3 docs, but still fails:

5.4. systemd: System Shutdown

CHECKIT for 12.3. Is this entry still required?

To halt and poweroff the system when using systemd, issue halt -p or shutdown -h now on the command-line or use the shutdown button provided by your desktop environment.

Note: A plain halt will not shutdown the system properly.

Luckily, my openSUSE is a VM, which I can reboot from the ESXi host.
On a physical system, you will end up without any option to resurrect the system.

Later

After installing antivir, a plain halt works sort of: it says it is halted, but ESXi still thinks it is not:

After installing antivir, a plain halt works.

After installing antivir, a plain halt appears to work, but it doesn’t.

ESXi is sure the system didn't actually power down.

ESXi is sure the system didn’t actually power down.

–jeroen

Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | Tagged: , , , , , , , , , , , , , | 4 Comments »

namebench – Open-source DNS Benchmark Utility – Google Project Hosting

Posted by jpluimers on 2012/12/17

Interesting: namebench – Open-source DNS Benchmark Utility – Google Project Hosting.

It runs on Mac, Windows and Linux, comes with a GUI and a console version.

–jeroen

Posted in *nix, Apple, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Power User, Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

Link dump: Linux/Unix like commands you can use in the Android Terminal emulator

Posted by jpluimers on 2012/12/14

A few links to Linux/Unix like commands available on Android devices:

Too bad the Android AVD is limited in that it does not allow you to use the Play Store. Without the Play Store, it is hard to install software, lucikly there is a downloadable version of this decent Android shell Terminal Emulator.

Not sure if you want to root the AVD in the way mentioned here.

–jeroen

via:

Posted in *nix, Android Devices, Power User | Leave a Comment »

Penetration Testing, Metasploit, Armitage and a nice book by Frank Neugebauer

Posted by jpluimers on 2012/12/11

Penetration testing is an important aspect of measuring how secure your network and computing systems are.

Both the German edition of iX magazine and the Dutch edition of c’t magazine had a series of articles (for instance this one) by Frank Neugebauer on penetration testing with Metasploit and the Armitage UI shell around it.

Just found out that Frank wrote a great book on Penetration testing mit Metasploit.

–jeroen

Posted in *nix, Power User, Windows | Leave a Comment »

It looks like everything signed by an Adobe Code Signing Certificate can be malware

Posted by jpluimers on 2012/09/29

If I read Inappropriate Use of Adobe Code Signing Certificate my conclusion is that anything signed by the Adobe Code Signing Certificate since 2012-07-10 potentially can be malware.

As a precaution, I will manually revoke the certificate on all my systems (that’ll take a while!). If anyone knows how to automate that process, please post a comment showing how to.

Hitching on a trusted certificate of a big software company comes close to the ultimate hack: trojaning signed malware in the distribution of an OS vendor.

–jeroen

via: Inappropriate Use of Adobe Code Signing Certificate « Adobe Secure Software Engineering Team (ASSET) Blog.

Posted in *nix, Adobe, Android Devices, Apple, HTC, HTC Sensation, iOS, iPad, iPhone, iPod, iPod touch, Linux, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Opinions, OS X 10.8 Mountain Lion, Power User, Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Tagged: , , , , , , , , , | Leave a Comment »

Link update because of rot (*nix – Mastering the VI editor)

Posted by jpluimers on 2012/09/17

Link rot stroke again: New link for Mastering the VI editor.

These are useful too:

–jeroen

via *nix – Mastering the VI editor « The Wiert Corner – irregular stream of Wiert stuff.

Posted in *nix, Cygwin, Endian, Internet, link rot, Linux, Power User, vi, WWW - the World Wide Web of information | Leave a Comment »

Zero-day Java exploit fixed: Either update Java immediately, or disable it if you don’t use/need it

Posted by jpluimers on 2012/08/31

On monday, I wrote it was Time to disable Java for a while: Zero-Day Season is Not Over Yet.

Today Oracle released a fix, which you should either install immediately (that is NOW, don’t hesitate!).

For this vulnerability, it is enough to disable Java from your browser – see: How to disable Java in your web browser – but as with any software: if you don’t need it, just disable/uninstall it.

Disabling/uninstalling on a Mac may impose a problem, as Apple hasn’t come with an update for the OS X editions that came with Java pre-installed.

Most other users can either install the version on their current system on-line from Download Free Java Software, or download offline installers for other systems at Java Downloads for All Operating Systems.

I might actually try the Java Unattended Silent Installer and Updater from Ninite – Install or Update Multiple Apps at Once.

–jeroen

via:

 

Posted in *nix, Apple, LifeHacker, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook-Air, MacBook-Pro, Power User, Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

Time to disable Java for a while: Zero-Day Season is Not Over Yet

Posted by jpluimers on 2012/08/27

Hmm, time to disable Java for a while:

Malware Intelligence Lab from FireEye – Research & Analysis of Zero-Day & Advanced Targeted Threats:Zero-Day Season is Not Over Yet.

–jeroen

Posted in *nix, Apple, Chrome, Google, Linux, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook-Air, MacBook-Pro, Power User | 3 Comments »