Student's Post on ulno.net

Meeting Report PACC

Wed, 16 Apr 2014 00:00:00 +0200

Report on 16/4/13

Yana

Building GUI

Met problem with overwriting personal files Research on parallelized processes, ssh keys

To Do

Assess if the moodle has heart bleed vulnerability(OpenSSL)

Kamilla/Asset

No progress on iScazy

Gpu passthrough to guest machine

Sun, 13 Apr 2014 00:00:00 +0200

Good day, readers! I want to share with you some ideas on GPU virtualisation.

This topic is pretty new for me, however, since I had experience with CUDA, and some times was called ‘The gpu master’ by our prof, i decided to take this as a challenge for myself

Introduction

Sun, 13 Apr 2014 00:00:00 +0200

Hello everyone! My name is Georgiy, origin is Almaty, Kazakhstan and I am assisting to professor Ulrich in creation and maintenance of Private Academic cloud, in Kazakhstan, Nazarbayev University. I had some experience with CUDA programming in past, not afraid of trying something new, have a pretty wierd (but lazy) mind, so maybe that’s why I am here.

So, these are my jan through feb activities

Sun, 13 Apr 2014 00:00:00 +0200

During the period starting from 27 Jan and lasting till 24 Feb the following jobs were performed: Got

clear understanding and aims of existing task. Prepared pcs for execution of future tasks. Learned

Virtualisation, part II

Sun, 13 Apr 2014 00:00:00 +0200

So, last two weeks were pretty difficult for me, maybe because of warm spring (at freaking last!), maybe because I had studied a lot.

Despite these facts i have some results on my virtualization research.

PACC project report 1

Wed, 09 Apr 2014 00:00:00 +0200

My and Asset’s task for the first few weeks of the PACC research was to assemble, configure and run the Synology Diskstation DS413j. (). Initially we had 5 of them, each having 4 hard drives 4GB each.

PACC report 1

Wed, 09 Apr 2014 00:00:00 +0200

.. post_format:Link .. tags:iSCSINAS

Hello, this is my first post during Spring 2014. To start with, my first task was related to NAS (Network Attached Storage), in collaboration with Kamila we assembled 5 Synology DS413j Diskstations. Synology DS413j is a 4 bay NAS server. Each NAS has total of 16TB memory. As always we couldn’t install the software using official manual, but with help of professor we finally found our NASs in the network ( more on this in Kamila’s post).

Report (Almas) early draft

Sun, 06 Apr 2014 00:00:00 +0200

Lab 7422

January - february 2014:

Used chmod -R 777 on user/local, created vulnerability that may have been exploited by viruses and malware. Corrected by UlNo (old local folder was deleted and copy was cloned from other PC).

PACC (report 1)

Tue, 01 Apr 2014 00:00:00 +0200

Hi,

this is the first report on the work I done for the PACC Project.

I had joint the group in the beginning of February. First few weeks I was busy with the 4th floor lab setup. During the 1st week I had checked the functionality of hardware, installed Ubuntu on lab machines and reported any hardware related issues to the IT.

Part-time Job at PACC (post 1)

Mon, 31 Mar 2014 00:00:00 +0200

Hello to everyone who might be reading my post now!

So, I started my part-time job at PACC project in the beginning of February.

We firstly started by setting up the computer lab on the 4th floor. We found out that there are several machines that do not work properly or were configured in a wrong way. So we needed to check each computer to make sure everything is working.

Hello Everybody!

Sun, 16 Mar 2014 00:00:00 +0100

Hello everybody!

My name is Alibek Sailanbayev,

Recently I became a member of your team, nice to meet you!

Now I’m working in project about “data retrieval”..

Regards, Alibek Sailanbayev

Report I

Sun, 16 Mar 2014 00:00:00 +0100

MapReduce in HDFS (Hadoop File System)

MapReduce - is a framework for distributed computing of tasks using a large number of computers (called “nodes”), forming a cluster. HDFS has its own MapReduce framework.

PACC Week 7 Report

Tue, 30 Jul 2013 00:00:00 +0200

.. tags:Proxmox

This week I was working on **Proxmox Virtual Environment, **which is a Open Source Server Virtualization Platform, based on KVM and OpenVZ.

First of all, I tried to install Proxmox on VirtualBox. The OS installed fine but in order to control server you need to use web browser. So I needed connect to Proxmox server from Host machine. I tried several configurations NAT + Host-only and Bridged Network, but the connection was not established. It seems that Proxmox network settings are always creating bridge to any new interfaces. I didn’t really understand what was wrong, because the same configuration was forking fine on other OS.

Owncloud Week 6 Report

Mon, 29 Jul 2013 00:00:00 +0200

This week I worked on configuration of owncloud on Debian.

At first I tried to set it up on Nginx and Mysql, but following the tutorials, I faced various problems during the actual configuration. I tried installation of the LNMP first and then owncloud:

apt-get install mysql-server mysql-client
apt-get install nginx
/etc/init.d/nginx start
mkdir /var/www
chown www-data:www-data /var/www

apt-get install php5-cgi php5-mysql php5-curl php5-gd php5-idn php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-ming php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl
nano /etc/php5/cgi/php.ini
(uncomment the line cgi.fix_pathinfo=1:)
apt-get install lighttpd
update-rc.d -f lighttpd remove
/usr/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -u www-data -g www-data -f /usr/bin/php5-cgi -P /var/run/fastcgi-php.pid
nano /etc/rc.local
(add before the exit line /usr/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -u www-data -g www-data -f /usr/bin/php5-cgi -P /var/run/fastcgi-php.pid)
nano /etc/nginx/nginx.conf
(change to worker_processes 5; keepalive_timeout 2;)
nano /etc/nginx/sites-available/default

See this tutorial for further configuration of the server: (http://www.howtoforge.com/installing-nginx-with-php5-and-mysql-support-on-debian-squeeze) Try out http://192.168.0.100/info.php Tutorial for owncloud installation (http://www.howtoforge.com/running-owncloud3-on-nginx-lemp-on-debian-squeeze-ubuntu-11.10) Then I tried to install owncloud over it, however, there was problem re-configuring the default webserver.

Owncloud Week 5 report

Mon, 22 Jul 2013 00:00:00 +0200

This week I tried to install and configure the Open Xchange, however following official tutorials, as well as other specialists’ guides, I was not able to configure it properly, since at the time, when the OX is trying to connect to the server and create user, it reports that there is an Authentication failure. Then I tried to install OX from Quick Installation Script, however I still wasn’t able to configure and run OX as it was intended. (http://oxpedia.org/wiki/index.php?title=Quickinstall_script)
I successfully installed Seafile 1.5.0 on Debian 6. Previously I tried to install the newest version, however there was some bug, since the installer didn’t recognize the presence of the python-simplejson, which was needed for further steps, complaining that there is still no one, however, it was installed already, re-installed and even updated. Then I tried the older version and it worked properly. Evaluation: I don’t consider Seafile as a good alternative to Owncloud, since even if it has such option as folder encryption, which protects user’s data from being viewed by the server admin, Seafile lacks functionality - no easy-to-upload interface, since you first need to create workspace and only then to upload files. It doesn’t have calendar, to-dos and other in-built apps.
I tried to setup Owncloud on Debian+nginxs+mysql, however pre-installation of LNMP and then reconfiguring owncloud to work with it, gave no result.

PACC Week 6 Report

Mon, 22 Jul 2013 00:00:00 +0200

This week I was working on connection between Guests that are located at different Hosts. The solution that worked was Bridged networking (“shared physical device”).

Host configuration

Stop network manager

sudo stop network-manager

'PACC: Week 8'

Wed, 17 Jul 2013 00:00:00 +0200

When I was setting PAM authentication via LDAP I noticed one undesirable thing. When I log into the machine as an LDAP user it sometimes mixes up LDAP and local users. For instance, the user akim can access the home directory of csc-151-1 (even though they have different home folders). You can see the example below.

'PACC: Week VIII'

Wed, 17 Jul 2013 00:00:00 +0200

On this week, I was dealing with problem of VM connection with host servers in libvirt. I have set aside the variant of using VDE, and continued to work on other possible solutions.

Android 1.4

Mon, 15 Jul 2013 00:00:00 +0200

Last week I tried to work with tiled map editor. I found that we need GDX library to work with it. I looked through with some tutorials and tried to run some of their examples. However, in android developer they did not run. The strange thing is there is no error in android project inside, but overall the project marked with warning mark. I checked all prerequests and pathes. It did not help. I workes with java 6 as I found in the internet suggested to use java 6. But, it did not work as well. Also, there is an open sourse AndEngine, which use tiles map. I downloaded it, but found its code too difficult to understand. Ultimately, I found a tutorial where the map could be made with help of simple matrix. I changed the UI a lot. Now, the project look like this

Owncloud Week 4 Report

Mon, 15 Jul 2013 00:00:00 +0200

In order to test alternatives to owncloud, VirtualBox with Debian was installed. I plan to test there Owncloud running on Nginx+Mysql combination, since the main server in our lab is running on Debian. I am also planning to install Seafile and OX, in order to research which of the following cloud services is a better solution to our project. Now I am facing the problem of the OX server authentification, need to resolve this, and continue the configuration. Information on Ajaxplorer: http://ajaxplorer.info/ Here is the link to the OX installation tutorial http://oxpedia.org/wiki/index.php?title=Open-Xchange_Installation_Guide_for_Debian_6.0_622

PACC Week 5 Report

Mon, 15 Jul 2013 00:00:00 +0200

.. tags:webvirtmgr

I joined my colleague Temirlan, now we are trying to setup connection between VMs that are hosted on different machines. I started by setting up my webvirtmgr servers. Now I have 2 servers each running 2 VMs. To do this I used links that I found at Temirlan’s post and also his help.

'PACC: Week 7'

Wed, 10 Jul 2013 00:00:00 +0200

The last week I was trying to establish a secure connection between LDAP server and clients. I first tried STARTTLS but could not configure it properly. The connection didn’t look to be secure between the clients and the server but between LDAP server and OwnCloud server only.

Developing Android Application 6

Wed, 10 Jul 2013 00:00:00 +0200

Weekly Review:

Changed formula for acceleration. Now I have instead three different acceleration one linear acceleration.

lin_accel = Math.sqrt(accel_x^2+accel_y^2+accel_z^2) - earth gravity

Now by this data I can move only forward or backward. I want to use data from gyroscope and detect angle of rotation. Despite I added low pass filter, accelerometer data is quite unpredictable and my object instead of moving to one side, jumps from side to side. So, I stopped here trying to find solution. I need complex mathematical formula. Found similar project in research centre in Spain(here is their website http://roodin.crs4.it/). Look to this video http://www.youtube.com/watch?v=HTZFRDBdQck&feature=related. I asked them to guide me. Hopefully after finishing this part I will work on combination maps and my code.

PACC: Week VII

Wed, 10 Jul 2013 00:00:00 +0200

After finishing my work on the acceleration of the VMs on my host server, with SPICE implementation I continued to work on the problem withconnection of VMs of different hosts

Transparent Proxy Week 4 Report

Wed, 10 Jul 2013 00:00:00 +0200

This week’s task was to install and run squid transparently. Unfortunately I figured out that DNS server is not working, I don’t know why, but at least I know that it was working when I installed it. I guess when I was experimenting with Squid I have messed something up.

Weekly meeting 26.07.2013

Wed, 10 Jul 2013 00:00:00 +0200

Professor Michael Lewis:

Told good news from Samsung meeting(internship in Samsung office in Moscow, Samsung Lab and Samsung devices)

Asset:

Succeeded in setting up transparent proxy by proxy server SQUID, wants to join to Assulan

TODO: Talk with Shyrailam and collaborate with her

### **Alexandra:**

- LDAP secure connection doesn't work using STARTTLs but works over SSL/TLS. Change some setting in Aldab and connected to OwnCloud

TODO: look at NFS and try to configure it

### **Yerkanat:**

- Working on OpenStack

TODO: will finish OpenStack soon

### **Alexandr:**

- Almost finished M23

TODO: Help Yerkanat to finish OpenStack

### **Raushan:**

Found Tiled map editor and learned it.

TODO: Create final user interface, combine user interface and map, create a source code for maps

### **Damir:**

Changed moving formula, tried to combine result of gyroscope and accelerometer data. Found similar existing project in Spain

TODO: Look through internet for accurate formula, wait answer from research center in Spain

### **Temirlan:**

Worked on the virtualization stuff, solving problem with the connection of the virtual machines of different hosts by using VDE2. Has faced problems with switches, will be using dpipe.

### **Shyrailym:**

was working on KVM and VDE

TODO: to connect virtual network on different hosts

Owncloud Week 3 Report

Tue, 02 Jul 2013 00:00:00 +0200

Owncloud:

Rsnapshot now works properly, it performs backups on a regular scheduled basis as cron jobs.
Secure connection can now be established, since the SSL certificate was created.
Problem with the upload limit was resolved, both the php.ini and admin tab’s settings should be set up to the same value.
Remote connection from outside via Cygwin and SSH was established. All functionality of the owncloud was tested, synchronization and other stuff works properly.

Research:

Weekly meeting July,2 2013

Tue, 02 Jul 2013 00:00:00 +0200

Professor Norbisrath:

Trying to get extra hard drives

Shyrailym:

Contacted the Baadal development group in India, wants to set up a system here. System however is not finished yet, but some of its features could be very useful, for instance KVM.
Partially help Android department

Raushan:

Android-ers 1.2

Mon, 01 Jul 2013 00:00:00 +0200

As we decided to share our duties I took UI part. At first glance, it looks easy to create several pages and connect them. However, today I stucked with creating dialog window with 2 chech boxes and seek bars to regulate music and sound of a game. Hope, to finish all UI stuff by the next week. I want to make 2 different design of them. Let’s see what I will obtain. Then, I need to begin to work on maps. What I actually have so far. Soon, it will be much better

Developing Android Application 5

Mon, 01 Jul 2013 00:00:00 +0200

Weekly Review:

I finally moved my image on phone screen but it is better reacts when I rotate my phone instead of moving it. I used data from accelerometer(gives us acceleration in x,y and z axis) and by formula Distance = (linear_acceleration)*(time^2)/2 found distance and added to current position. From internet tutorials, I concluded that combination of gyroscope and accelerometer make data more accurate. Also by using Kalman filter we can clear noise of data from accelerometer(it is very complex, not easy to use). Only now, I understand that difficulty between our project and previous one is same. One of solution for drawing on air and detecting it on screen, is to save coordinates by orientation sensor in 2 matrix array and later compare with array in database.

PACC: Week 6

Mon, 01 Jul 2013 00:00:00 +0200

Worked on LDAP and Owncloud. At first, they worked fine together but user login names were displayed as sequences of random characters (for example, 0f47af12-70ef-1032-92b6-890f766dd4b3). This was fixed by simply specifying internal username attribute in advanced settings tab.

PACC: Week V

Mon, 01 Jul 2013 00:00:00 +0200

I have been absent for the last week, so here I will report about the things that I achieved before my leave . So mostly, I have been working on the acceleration of the VM

Diagram from meeting

Thu, 27 Jun 2013 00:00:00 +0200

Transparent Proxy Week 2 Report

Thu, 27 Jun 2013 00:00:00 +0200

This week’s task was to create virtual network which will be similar to our lab’s network in order to test and evaluate Squid caching proxy server. Lab’s server has 2 network adapters: one is connected to university’s network, which has proxy, and another is hosting local network inside the lab, which uses transparent proxy implemented via redsocks. So all machines in our lab “think” that they don’t have a proxy.

Transparent Proxy Week 3 Report

Thu, 27 Jun 2013 00:00:00 +0200

This week I was creating virtual network. First of all, I need to make server VM to use proxy from university’s network. For this I used tunnelling, basically what I did was following: from server VM I ssh to lab’s server and tunnel ports so server VM could get internet with proxy from university’s network. Command looks like this:

PACC: Week 5

Tue, 25 Jun 2013 00:00:00 +0200

The past week I continued working on LDAP and PAM.

I thought that it would probably be useful if I had all users and groups stored in my LDAP. So, I imported existing groups and users. That resulted in 88 groups and 56 users, including not only real users, but mostly such items as avahi, bluetooth, video, audio and etc.

Android-ers

Mon, 24 Jun 2013 00:00:00 +0200

Weekly review

Good news we finally decided with the project! There are 2 of its initial scenarios:

Scenario#1 Title: Complete the map (map#1)

Aim:

To show the best result by completing the map with greatest time and/or with the most amount of treasure.

Developing Android Application 4

Mon, 24 Jun 2013 00:00:00 +0200

Weekly Review:

I suggested to concentrate on developing a puzzle game as our main project. I came to such conclusion due to several reasons:

Being able work with databases(basic knowledge enough)
Easy to peak up an idea(We can find the type of puzzle game for instance from old books)
Working with graphical interface

OpenStack Week 3

Mon, 24 Jun 2013 00:00:00 +0200

This week I deployed OpenStack.

In order to do that get devstack project from the github. We need its stable grizzly branch version:

https://github.com/openstack-dev/devstack/tree/stable/grizzly

By default Network management is not installed, so add this text into “localrc” file:

Owncloud Week 2 Report

Mon, 24 Jun 2013 00:00:00 +0200

Mobile application:

Owncloud official app requires installation of aCal, CardDav and other programms to provide functionality to the app, such as calendar, contacts and tasks synchronization. However, this is not direct sync with default mobile calendar, but rather with aCal’s calendar, which is a bit useless.
Other 3rd party clients are under development and also require additional app installation.
Solution: It would be better to connect to owncloud via browser, or process it so as to produce the mobile version (as Damir said, it is one of the three methods of creating mobile apps).

Backup: I have started searching for possible backup options:

'Android Developers '

Tue, 18 Jun 2013 00:00:00 +0200

Report:

During week 1 the majority of work was dedicated to cover as much material as I could. There were

creating pop-up messages
creating menu function

context menu

writing LayoutParameters in MainActivity.java file
simple animation with text

Our project:

'PACC: Week 4'