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Colin Charles: Congratulations Ubuntu, for the wide choice!

MyOSS Planet Feeds - Fri, 2014-04-18 16:54

Inspired by Yngve Svendsen’s post, I too think it makes absolute sense to congratulate Ubuntu on the 14.04 LTS release (some server notes - MySQL has a section dedicated to it). Ubuntu users have a lot of server choice today (that’s from all major MySQL ecosystem vendors):

  • MySQL 5.5.35 ships in main. It is the default MySQL. Oracle has committed to providing updates to 5.5 throughout the LTS release cycle of Ubuntu (which is longer than the planned EOL for 5.5). This is why the grant of a Micro Release Exception (MRE).
  • MySQL 5.6.16 ships in universe
  • MariaDB 5.5.36 ships in universe.
  • Percona XtraDB Cluster 5.5.34 ships in universe

Ubuntu’s pitch is being the cloud platform of choice, with OpenStack support. This explains why Percona XtraDB Cluster (the only shipping Galera Cluster variant — no upstream Codership release, and no MariaDB Galera Cluster) is critical infrastructure as its used widely in OpenStack deployments. 451Research estimates that the OpenStack distributions market is worth $82 million in 2014 and $119 million in 2015.

Press release had a choice quote from Percona CEO, Peter Zaitsev:

“We are very pleased that Percona XtraDB Cluster is included in Ubuntu 14.04 LTS. Many organisations that use MySQL need high availability solutions to ensure that their applications meet the expectations of their users. Percona XtraDB Cluster is an easy to use, open source solution for MySQL clustering which addresses these high availability needs. We continue to see growth in Ubuntu usage by our customers and our open source software users so we are confident that the inclusion of Percona XtraDB Cluster in Ubuntu 14.04 will help spread the adoption of cost-effective, high availability MySQL.” Peter Zaitsev, Co-Founder and CEO at Percona

 

Related posts:

  1. Ubuntu 10.04 LTS released, MariaDB 5.1.44/5.2-BETA VM’s available
  2. OpenSUSE users have a choice of database now!
  3. Communications, Ubuntu 6.06 LTS & MySQL downloads

Categories: MyOSS Planet Feeds

Colin Charles: SSL and MariaDB/MySQL

MyOSS Planet Feeds - Thu, 2014-04-17 18:25

With the recent Heartbleed bug, people are clearly more interested in their MariaDB/MySQL running with SSL and if they have problems. First up, you should read the advisory notes: MariaDB, Percona Server (blog), and MySQL (blog).

Next, when you install MariaDB (or a variant) you are usually dynamically linked to the OpenSSL library that the system provides. Typically on startup of MariaDB 10.0.10 on CentOS 6.5 (packages from the MariaDB repository), you can check what your status of SSL is.

MariaDB [(none)]> show variables like 'have_ssl'; +---------------+----------+ | Variable_name | Value | +---------------+----------+ | have_ssl | DISABLED | +---------------+----------+ 1 row in set (0.00 sec)

This means that SSL options are compiled, but mysqld didn’t start with it. You can verify SSL is linked dynamically:

ldd `which mysqld` | grep ssl libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007ff82d1b1000)

If you are running with SSL enabled (some documentation at MySQL) you will have different options naturally. You can do this via: /etc/init.d/mysql start --ssl. Output now changes:

MariaDB [(none)]> show variables like 'have_ssl'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | have_ssl | YES | +---------------+-------+ 1 row in set (0.00 sec)

The value NO will be displayed if the server is not compiled with SSL support. See SSL Server System Variables for more.

Related posts:

  1. MySQL 5.6 system variables in the MariaDB 10 server
  2. Using MariaDB on CentOS 6
  3. MariaDB 10.0.5 storage engines – check the Linux packages

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Bakhtiar: Kedai Android App

MyOSS Planet Feeds - Mon, 2014-04-14 13:07
Here's a list of some of Kedai Android App : - terkini - himpunan hadis and a lot more at the google play
Categories: MyOSS Planet Feeds

Muhammad Shahriman (Yondie): Immutable Data and Memory Sensitivity..

MyOSS Planet Feeds - Sun, 2014-04-13 02:18
Considered this python code snippets

import hashlib
while True:
   print("Enter your password")
   s = raw_input('--> ')
   print(s)
   print("Now the md5sum")
   s = hashlib.md5(s).hexdigest()
   print(s)

By any means it's relatively a simple code to understand, we use s as a placeholder for our incoming data string, compute it's md5sum and replace the s value with a hexdigest.. In short s now contain the md5sum in hex right? So any plaintext that we've entered should vanished and and flush out by the garbage collector in python VM right?

Let's give it a test.


So most people would think any previous plaintext value would be washed out from the memory. The String DogFood  won`t exist right? Let's attach this current script on a debugger ('Im using edb debugger , the best thing besides windbg sorry stallman gdb just sux!!!!');


I like using edb debugger, it helps for example binary search string. Since we have replace the s value from DogFood to a hex string. We shouldn`t see any DogFood string in the memory right? Unfortunely that is entirely not true :(



DogFood in Hex High-level languages often have data types that are immutable. The program can only write to an immutable object once, at creation time. In other words s is just a label and the string maybe be stored in the same address or  anywhere in the memory. (Noted to self, heap/stack/bss/dss/ is actually some sort of label the computer generated to ou  give it some of approximate understanding on a specific region in the memory) 

Let's search for the md5sum string. 36f65df05afee9fb079943b7ba5d9617



The string was stored in a different address!!


So in a High Level Language,  there is no gurantee your initial plaintext data in an address would be overwrite with a encrypted blob/binary . The only way to ensure overwrite is 100% is to use either mutable data structure that are capable of replacing dynamics element.

So why did u see a chunk of the unencrypted/crypted data in the heartbleed heak leak? Not a surprise anymore right?




Categories: MyOSS Planet Feeds

Colin Charles: Ai Weiwei – Evidence

MyOSS Planet Feeds - Fri, 2014-04-11 21:52

I was fortunate enough to have some free time earlier today evening, and headed over to the Martin-Gropius-Bau to catch the Ai Weiwei (@aiww)exhibition titled Evidence. This is the first time I’ve seen Ai Weiwei’s work as I missed it at the Tate Modern in London a while back.

He is a modern artists. Playing around with a lot of different materials to come up with his artwork. And he makes use of the Web. I guess his claim to fame is that he’s all for freedom of speech & expression (something that’s hard to do in China – a dissident he is, if you must), and the fact that he’s a documenter of modern happenings (everyone is interested at the amazing pace of growth in China – he shows that by video recordings of highways, or driving around and recording his journey as an example).

For me, I was really moved by Zodiac Heads (Circle of Animals). I would so grab the rat, tiger and dog as examples! 

China in ten years (I first went to Beijing in 2004 – it has changed a lot in a decade) has become a lot more materialistic. The car of choice used to be the Audi; it still is, but you find a lot of other luxury vehicles on the roads nowadays in Beijing. So the Han Dynasty vases painted with metallic paint from BMW & Mercedes was great for cultural insight. Culturally, the want of antiques is also high and the Table & Chest with stripped chairs was also interesting – remove 1mm sheen from Ming Dynasty furniture and they look like new. What is the purpose of antiques again?

I enjoyed his Study of Perspectives (a selection at moma) as well. He goes to famous landmarks and takes a photo with his left middle finger.

He portrays the disputed islands (between China & Japan). I loved the stools because they each tell a story (6,000 of them). I enjoyed his re-enactment of how he was held captive by the Chinese authorities for some time. It’s shocking to see how you would sleep with a light on, always be watched by security guards and have everything covered up – where you have to do your own laundry and the only thing you get are 6 hangers. Its sad to see that his studio in Shanghai was demolished at a moment’s notice – but he made artwork out of it. He showed the evidence that was confiscated (lots of laptops/video recorders/PCs).

A protest pre-demolition involved river crabs (he xie). Guess that’s the beauty of the Chinese language :)

If you get the chance to check Ai Weiwei’s work out, its well worth it and will take you a good 2 hours (read a review in The Economist). You can’t take photos inside, but you will leave with a lot of memories. If you can’t see this one in Berlin, check out a video: Ai Weiwei – Dumbass. At five minutes long, it makes my video of the week.

Related posts:

  1. Malaysia’s Evidence Act – #STOP114A
  2. Software Freedom Day 2007, Beijing Report
  3. Software Freedom Day 2007 – Beijing

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Colin Charles: On device ecosystems

MyOSS Planet Feeds - Sun, 2014-03-02 07:07

I was just listening This week in google #236, and they were talking about device ecosystems. The topic of smartwatches came up obviously. The first Samsung Galaxy Gear was apparently not a good seller because it had a limited app ecosystem and it was tied to just a few devices (I only know one person who has said watch, and wears it regularly).

If Apple builds an iWatch, they will tie it into the iOS ecosystem. This is why Leo Laporte the host likes the Pebble – it works with all his devices.

How many people are Leo with an iPhone and an Android phone? And whatever else is compatible with the Pebble? End users (consumers) usually have one phone. There’s nothing wrong with the iWatch to be tied into the iOS ecosystem — its an awesome ecosystem. Soon you may get cars with iOS on it (just like you can get cars with Linux on it).

The iWatch if Apple makes one will probably be compatible all the way back to the iPhone 4S. It should cover most iOS/iPhone users. And just like the apps you buy in the app store when the iPad came along (first you had iPhone only apps, with double-size; then you had separate iPad apps that would cost more; nowadays many apps are “universal” to work on both and cost the same), I expect something similar will happen with the iWatch. 

That said, I like my analogue watches. I had no interest in the Pebble or the Samsung Galaxy Gear. I’d be interested to see what they do with version 2, which has Tizen (even less apps maybe?). When Apple releases an iWatch, you can be sure I’d probably buy it — I have seen things from all sides, and I like their ecosystem.

Related posts:

  1. Messenger apps revisited
  2. Apple opens up Podcasts, iTunes U in Malaysia
  3. A new phone, new for 9 months?

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Lee Chin Sheng: Interesting Rootkit: Uroburos

MyOSS Planet Feeds - Sun, 2014-03-02 04:33
My friend ebf0 has shared with me this interesting analysis report from GData Security Lab, you can find the report here -

https://public.gdatasoftware.com/Web/Content/INT/Blog/2014/02_2014/documents/GData_Uroburos_RedPaper_EN_v1.pdf

To understand why the name "Uroburos", we should refer to

http://en.wikipedia.org/wiki/Ouroboros

Doesn't matter it comes from which party, we all know Intel gathering is always there, by the time we know it it seems late by miles. Internet security community needs to work harder together to uncover them as soon as possible.

Cheers (;])
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Muhammad Shahriman (Yondie): OSINT Tricks: Combining Shodan + The Harvester

MyOSS Planet Feeds - Fri, 2014-02-28 05:31
The Harvester is  a good tools for data mining enumeration during RECON/Information Gathering period. On version 2.2a  the harvester support integration with SHODAN.


In order to use SHODAN services in the Harvester you need to supply the API key . So if you try to use it without supplying the SHODAN API Key.



There is not a proper documentation on how to supply the the Shodan API key but after reading the source code , you need to supply the key at discovery/shodansearch.py

After supplying , the results for information gathering/stalking becoming much more useful.



Categories: MyOSS Planet Feeds

Nicholas A. Suppiah (tboxmy): Managing PostgreSQL with pgsql and pgAdmin3

MyOSS Planet Feeds - Tue, 2014-02-25 10:03
The command line interface (CLI) tool that comes with Postgres server is known as pgsql. Alternatively, pgAdmin3 and phpPgAdmin can be installed.

The pgsql

Among some of the commands for pgsql can be shown as below;





pgAdmin3



Categories: MyOSS Planet Feeds

Nicholas A. Suppiah (tboxmy): Installing PostgreSQL on Centos 6

MyOSS Planet Feeds - Tue, 2014-02-25 09:46
PostgreSQL being an OSS licensed database is very different compared to MySQL. PostgreSQL (or Postges) maintains a repository for Linux systems like Centos to install the database. This repository is known as pgdg and is maintained at yum.postgresql.org or yum.pgrpms.org

Installation of the Postgres comes with psql, this is a CLI to manage Postgres.

Installation of PostgreSQL 9.3 on Centos 6.4 is as follows;

Step 1:
Open a CLI as root user and retrieve the pgdg repo RPM, then install it. This will allow the Centos to find for software from the pgdg.

wget http://yum.pgrpms.org/9.3/redhat/rhel-6-x86_64/pgdg-centos93-9.3-1.noarch.rpm

rpm -ivh pgdg-centos93-9.3-1.noarch.rpm

Step 2:
Install the client and server.

yum install postgresql93 postgresql93-server




Step 3:
Initialise database and tables, and start. This creates the default user postgres.

service postgresql-9.3 initdb
service postgresql-9.3 start
You can now login with the default user to the Postgres terminal as follows;
su postgressudo postgres
Step 4:As the postgres user, create an administrative user, then log out from the psql (use \q), then the shell (Control-d).
CREATE role dbmsuser LOGIN PASSWORD 'password' SUPERUSER;
Step 5:Edit Postgres configuration file;
vi /var/lib/pgsql/9.3/data/postgresql.conf
Uncomment the line and save.#listen_addresses = ‘localhost’ and change it to listen_addresses = ‘*’
vi /var/lib/pgsql/9.3/data/pg_hba.conf
Add a line at bottom of the file to allow non-local connections, e.g.host    all             dbmsuser        10.0.0.1/32            md5

Post installationchkconfig postgresql-9.3 on
Ref: How to Install PostgreSQL 9.2 on CentOS 6.3/RedHat EL6/Fedora
Categories: MyOSS Planet Feeds

Wei Chong: Value Semantics, Concepts Based Polymorphism and Composite Pattern

MyOSS Planet Feeds - Mon, 2014-02-24 13:28
Not long ago, I watched Sean Parent's Value Semantics and Concepts Based Polymorphism.
In the presentation, Sean showed a sample code that manipulates "document type".
Yesterday, while flipping over an old book on my book shelf, Pattern Hatching: Design Patterns Applied, by John Vlissides, I came across his example of using the Composite Pattern to illustrate a simplified file system structure with class Node, class File and class Directory.  There it uses the classical way of inheritance.I couldn't help but notice the similarity between the simplified file system recursive structure of the Composite Pattern with Sean's example of the document inside document.
So, I just play around with concepts based polymorphism a bit.Note that the code may not be optimize or anything, as it is a quick copy-and-modify.
Here is node.h:
#ifndef NODE_H #define NODE_H #include #include #include #include class node_t { struct concept_t { virtual ~concept_t() = default; virtual size_t total_size() const = 0; virtual void print(std::ostream& out) = 0; virtual concept_t* copy() = 0; }; struct file_model_t : concept_t { file_model_t(size_t x) : total_size_(x) {} size_t total_size() const { return total_size_; } void print(std::ostream& out) { out << total_size_; } concept_t* copy() { return new file_model_t(*this); } size_t total_size_; }; struct dir_model_t : concept_t { dir_model_t(std::initializer_list l) : children_(l) {} size_t total_size() const { size_t total_size = 0; for (const auto& c : children_) total_size += c.total_size(); return total_size; } virtual void print(std::ostream& out) { out << "("; auto i = children_.begin(); out << *i; ++i; while (i != children_.end()) { out << ","; out << *i; ++i; } out << ")"; } concept_t* copy() { return new dir_model_t(*this); } std::vector children_; }; std::unique_ptr p_; public: node_t(size_t value) : p_(new file_model_t(value)) { /*std::cout << "ctor file" << std::endl;*/ } node_t(std::initializer_list l) : p_(new dir_model_t(l)) { /*std::cout << "ctor dir" << std::endl;*/ } node_t(const node_t& x) : p_(x.p_->copy()) { /*std::cout << "copy" << std::endl;*/ } node_t& operator=(node_t x) { //std::cout << "assign" << std::endl; p_ = std::move(x.p_); return *this; } size_t total_size() const { return p_->total_size(); } friend std::ostream& operator<<(std::ostream& out, const node_t& n) { n.p_->print(out); return out; } }; using file_t = node_t; using directory_t = node_t; #endif //NODE_H And here is the client code:
#include #include #include "node.h" int main() { file_t f1 ( 10 ); std::cout << "f1: " << f1.total_size() << std::endl; file_t f2 ( 20 ); std::cout << "f2: " << f2.total_size() << std::endl; directory_t d1 { f1, f2 }; std::cout << "d1: " << d1.total_size() << std::endl; file_t f3 ( 30 ); std::cout << "f3: " << f3.total_size() << std::endl; directory_t d2 { f3, d1 }; std::cout << "d2: " << d2.total_size() << std::endl; std::cout << d2 << std::endl; } And this is the output:
f1: 10 f2: 20 d1: 30 f3: 30 d2: 60 (30,(10,20))
Note how the directory nests the subdirectory.
More importantly, the value semantics of the client code, polymorphism without reference or pointer, cool!

Admittedly, I'm quite new to this concepts-based polymorphism technique, and may also not be paying too much attention to other aspect of the C++ code in general. If you find any mistake, feedback and advice are appreciated.

Categories: MyOSS Planet Feeds

Lee Chin Sheng: The Practice Of Network Security Monitoring

MyOSS Planet Feeds - Mon, 2014-02-24 09:10
Year 2014 will most probably be a refreshing year to myself, everything is like new all over again and what should I do next is important.

NSM has been big part of my career and I'm back to the root, and I would like to discuss/share anything regarding this huge topic. The first thing I would most probably do is to grab the book that is written by my friend - Richard, The Practice Of NSM. Thank you for your effort to write this book, it is really tough to stay focused and finished a book especially for a busy person like you.

Second thing to do would be reviewing the new version of existing tools, and also new tools that kick in without me noticing - Netsniff-ng, Snort, Suricata, Bro-ids, Argus, NetworkMiner, SIFT and many more, you name it.

Third thing to do is sharing, to share what I have found and learned, in the world of IT security.
Categories: MyOSS Planet Feeds

Colin Charles: Time spent on PR

MyOSS Planet Feeds - Sat, 2014-02-22 16:00

How WhatsApp’s Arora Sealed Facebook Deal – Digits – WSJ: Time spent on PR is time not spent ‘making your users happy,’ Arora said. ‘The users you get from press and hype are not the best users.’

Related posts:

  1. Too many INBOXes
  2. Roaming data
  3. The quotable Satya Nadella

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Mohd Izhar Firdaus (KageSenshi): Reboot!!!!!!!!!!

MyOSS Planet Feeds - Thu, 2014-02-20 19:07
So I guess I have been missing from posting things on this blog for over a year now ... Bunch of stuff happened in the past years .. theres a likelihood that I might be back ^_^ .. 

- Izhar Firdaus -
Categories: MyOSS Planet Feeds

Nicholas A. Suppiah (tboxmy): Italian God Fathers May Run Open Source

MyOSS Planet Feeds - Thu, 2014-02-20 01:37
In the current economic challenges, many countries are looking at saving cost via ICT and Italy is not an exception. Umbria, a region in the centre of Italy that produces cheese, lentils, truffles and have a relatively large number of small industries. This 900,000 strong population region is home to an active GNU/Linux User Group Perugia.

In 2012, Umbria saw the start of a revolution to switch to LibreOffice, which is LGPL or open source software (OSS) licensed. LibreOffice provides office productivity tools that include a word processor (like MS Word), presentation (like MS Powerpoint), spreadsheet (like MS Excel) and more. Advantages of this software is that it is free to download and install for almost all computers as it supports MS Windows, Linux and Mac platforms. Most popular editable document formats can be open and edited and its interface is rather intuitive and easy to use. It comes with a portable version where users can install it on a USB drive and carry it around to run LibreOffice any where. A built in PDF converter allows any edited file to be frozen and to be distributed with read only access and consistent format.

Through LibreUmbria, schools were introduced to use LibreOffice as their primary document editing applications before it was expanded further further to other organisations. This also received the government's top innovation award for Italian Government Projects in 2012/2013. Will the rest of the Italian Government follow suit?

Read up news on the region of Umbria to switch over from MS Office to LibreOffice.

Jan 16, 2014 from ZDNet
Sep 26, 2013 from LibreOffice
Jun 5, 2013 from Document Foundation Blog


Categories: MyOSS Planet Feeds

Nicholas A. Suppiah (tboxmy): Passwordless root SSH Public Key Authentication on CentOS 6

MyOSS Planet Feeds - Wed, 2014-02-05 01:55
Need to remote login to linux servers?

Create a public key and store it in the remote server. By default it is recognised as authorized_keys but this is fully configurable. The ssh-keygen generated the public key with RSA that is by default called id_rsa.pub

A well written article to do this can be found at Passwordless root SSH Public Key Authentication on CentOS 6

An alternative sshpass command as mentioned in January 31, 2014 Linuxpromagazine seems to force users to make the password visible. Good that this is no available in a default Centos 6, as this will help to maintain good password practices. I.e. do not have password kept where anyone can read it.
Categories: MyOSS Planet Feeds

Colin Charles: The quotable Satya Nadella

MyOSS Planet Feeds - Tue, 2014-02-04 23:48

Microsoft has its third CEO in its entire history (started 1975), Satya Nadella. Some choice quotes & thoughts…

Via WSJ:

What drives me every morning and what keeps me up every night is one thing: this business is not about longevity, it’s about relevance.

Via his letter to his employees:

Our industry does not respect tradition — it only respects innovation.

Many who know me say I am also defined by my curiosity and thirst for learning. I buy more books than I can finish. I sign up for more online courses than I can complete. I fundamentally believe that if you are not learning new things, you stop doing great and useful things.

This starts with clarity of purpose and sense of mission that will lead us to imagine the impossible and deliver it. We need to prioritize innovation that is centered on our core value of empowering users and organizations to “do more.”

I truly believe that each of us must find meaning in our work. The best work happens when you know that it’s not just work, but something that will improve other people’s lives.

Not sure about this “one microsoft” idea (I hear too much of 1Malaysia), but the elements required to aspire to change the world stand strong: talent, resources, and perseverance.

Definitely an exciting time to see what Microsoft can bring to the table. Not to mention that opensource and cloud computing is pretty much everywhere these days…

Related posts:

  1. Information diets and media biases
  2. The goat comes to town
  3. The Art of Innovation – Guy Kawasaki

Categories: MyOSS Planet Feeds

Colin Charles: Bitcoin Exchanges can’t work in Malaysia

MyOSS Planet Feeds - Tue, 2014-02-04 10:30

News today: Genneva (gold trading company, launched by former Prime Minister Mahathir) Malaysia director charged with accepting deposits without a license.

So if you’re thinking of a Bitcoin exchange in Malaysia, think again. Bank Negara Malaysia obviously doesn’t think much of Bitcoin. How will you accept deposits without a license? 

Singapore on the other hand proves itself to be in the forefront of finance: treat Bitcoin like a product. Read the full IRAS statement. Singapore is about to get its first Bitcoin ATM soon.

For further reading, see the BAFIA 1989, in its entirety. Once again, laws that prevent innovation.

Related posts:

  1. Boom or inflation in Malaysia?
  2. Malaysia’s Evidence Act – #STOP114A
  3. Tax incentives for angel investors in Malaysia

Categories: MyOSS Planet Feeds

muhd. zamri: Mageia 4

MyOSS Planet Feeds - Tue, 2014-02-04 01:31
Mageia 4 has been released on Feb 3rd 2014. For Mageia 3 users, you will get a notification to upgrade. Just click on it and after answer a few questions, you're set to go. I just did that and at the time of this writing, I'm using Mageia 4. 
From my point of view, I didn't notice any major differences in terms of usability beside the usual change of wallpapers, screensavers and a little bit of widgets. I'm sure, overtime I will find more and more. The Welcome dialog (see below) is a very good approach for newcomers and newbies alike to Mageia world. 
For those who are in search of a distro, Mageia is worth to try.

Enjoy!
Categories: MyOSS Planet Feeds

Muhammad Shahriman (Yondie): Uploading files on an interactive windows shell. Part 2 ..

MyOSS Planet Feeds - Sun, 2014-02-02 07:01
Based on previous post. A reader ask me how the heck should i get a psexec uploaded on the system on the first place? Good question..

First technique introduced by our favorite vendor of all time. That's right folk microsoft...!!!


If you don`t believe me..


2nd technique. What happen if our firewall blocked SMB/WebDAV protocol.. Then we can upload it back manually using VB Script as describe by SK Chong in Phrack Issue 62 at 6.b



3rd. Technique. If we are on Windows 7/2008/8.1 . Hello One Line Powershell 


Endless imagination.
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