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January 23rd, 2009


10:32 am - Linux Workshop @ informatics

FOSS Informatics: Up and away with Ubuntu Workshop

“The time is not far when most of the people will take up the Open Source OS as their answer for their working.” This is exactly what I, and all of us felt at FOSS Informatics after seeing the overwhelming response for the Ubuntu Workshop that was scheduled to take place in 10 days time. To be honest, the time duration was provided so that most of the students would have enough registration time. Well! Talk about time that was not the issue with I.T fanatics of Informatics. ‘Coz, what turned out was least expected as the list for the workshop participants was over flown within 40 hours of the posted date. In fact, the list grew on and on to much of our delight. The event that was expected to have only few participants now had entries that could not be fitted into the time frame and schedule by any means. So, we had to split the students into groups, which meant that all the entries couldn’t be fitted into the single workshop. This was bit of a disappointment on our part as much as it was for the students who had registered much eagerly for the workshop. But as they say “When there is the will there is a way” we are already planning to organize the second workshop for the registered students in near future.

The Event

The workshop was intended on Ubuntu 8.10 (alias Intrepid Ibex) and purely for the newbies who had or hadn’t heard about Ubuntu. It was a two day program where for the first day the focus was to learn the basics of Ubuntu 8.10. The second day was focused for much awaited LTSP (Linux Terminal Server Project) program. It was much to our pleasure that LTSP was actually happening. ‘Coz we had to miss the earlier workshop on LTSP by FOSS-Nepal due to time scarcity. However, one of our friends was able to attend that workshop and he was willing to share his knowledge with us. That’s the beauty of this committee (FOSS) I feel; it says: ”Come, Share and Contribute”. After all, knowledge is not worth a penny until and unless you share it. Its all about expanding your horizon of knowledge.

It’s Show Time

18th of January was the show day for the Ubuntu Workshop by FOSS-Informatics. Well the time was quick arriving and like it is with all other events; the time was scarce. The helping hand shown by our college should be applauded for in this case as well. All of us were busy with the preparations for the event. From the cozy corner of our college which I thought could only be the samosa spot was the place where few of our friends were busy giving the finishing touches minutes before the event. That’s the beauty of getting the experience as that. Actually all of us did the swell job.

I ain’t sayin’ a thing

Ya! We are not commenting on anything; frankly because we don’t need to. After having known about the facts of the Open Source OS in contrary to the others. The use of Open Source doesn’t make you feel that you are using some cheap program; it allows you to be imaginative and innovative. The list is endless. So, It is for the users’ to say how they feel with the Open Source and we won’t need to say a thing.

Well! That was one experience from many others to come ….

FOSS-INFORMATICS

 


Current Location: informatics collage
Current Mood: accomplished
Current Music: join us now and share the software- richard stallman

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May 31st, 2008


11:34 am - My ABC's Trekking
Recently I went for wonderful Annapurna Base camp. I couldn't stay  without Describing its glory. Here I have describe Day wise.

Day 1.(Monday 5th may 2008):- We Went to Pokhara. We purchased a Pocket MAP, We thought it will help us to find the Path and it Does. We stayed at lake side, my friend forced me to look around to lake side but i did not like lake side and pokhara too :( my BAD. i Don't know why i can not stay at POKHARA.

Day 2 (Tuesday 6th may 2008):- The journey to ABC. We went baglung bus park to get a TAXI to nayapul. at 9 am we reached to NAYAPUL we have had noodles with egg. Then we start walking to Ghandruk. In this stage we were totally out of contact, No Network coverage, No Gmail, no ubuntu-np :( no IRC. we began to start walking through MODI river. Crap.I haven't walked that much before. I missed my enticer alot at that time. 3:15 PM, We reached to Ghandruk. Small and nice Place. Those who can't go for ABC trekking the should go for Ghandruk. I was not feling well, mild fever, Leg pain. Damn but i was dreaming the heven (ABC). At evening, we burnt a candle, due to some Technicle problem in power house there was no light. I was even couldn't sleep due to the leg pain. I had a some painkiller and citamol. then I don't know when i slept.

Day 3.(Wednesday 7th may 2008):- 5:15 am, we waked up and went to the roof to see the fishtail and others mountain. We had some click and start walking to Destination. in the middle of  the way we lost our Path, Then we start walking here and there, suddenly we found the right path to chomrong. We took a rest at Chomrong, had a lunch at My friends Dibeshower House, moonlight Restaurant. Then we again start walking. 5 PM we reached at sinuwa. Our plan was to reached Dovan but we have already walked 11 hrs. so Ashish and my Leg forced me to stay at sinuwa. We had a some click of fishtail and hiuchuli mountain. We can find the great view from there.

Day 4 (Thursday 8th may 2008):-  Waked up at 5 am and started walking at 5:45, after having a cup of tea. We planned to reached the Base camp on the way but others tourist 's guide suggest us to walk slowly slowly because we might suffer from altitude sickness. then we made a slide changes in our plan. we have decided to stay at deurali. from sinuwa to deurali we can reach easily by 3-4 hrs but it takes 7 hrs to reach at deurali. we had a breakfast ?? or lunch at himalay. it was so cold. i was on half t-shirt and half pant and trekking sandal. after having a breakfast(?? or lunch because it was the first meal of that day and we had it at 12:5 PM) we went to Deurali. 3:30/35 we reached at deurali. we put the our luggage on room, Same Hotel others 3 beautiful lady (2 foreigners and 1 Nepali girl) was also  staying. We had some chit chat with them. then we had a tea, all the food is tooo expensive here. we paid 80 i guess for a cup of tea but it make a sense isn't it. no transport, all the things is carried by Potter so we were happy to pay 80 rs for a cup of tea. we ordered a Pizzaa for a dinner. Damn, I haven't saw that kind of pizzaa in my life not even in Nanglo, alina's, fire and ice no......not even in whole Kathmandu. It was so big and delicious. it cost only 370 rs. ok......its time to go to the bed. Good night

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April 23rd, 2008


11:32 pm - Mounting remote DIR using UBUNTU---sshfs

# First install the module:

sudo apt-get install sshfs

# Now use modprobe command to load fuse

sudo modprobe fuse

# Need to set up some permissions in to access the utilities.

sudo adduser surmandal fuse

sudo chown root:fuse /dev/fuse

sudo chmod +x /dev/fusermount

# Note:you might get this error. I have got same error mesage too. "chmd: cannot access '/dev/fusermount' : No such file or directory." I fix it by doing

whereis fusermount

# output

/bin/fusermount

sudo chmod 4755 /bin/fusermount

# Now Logout once and log in back. Now create a Directory in desire path. I have created a DIR called blackbox in my Home Directory. mkdir ~/blackbox Now use this command to mount it. it will prompt to save the server key and for your remote computer password.

sshfs surmandal@202.79.x.x :/remotepath ~/blackbox

# Now cd into the directory and start using it as if local.

surmandal@blackbox:$ cd ~/surmandal/blackbox && ls -l

Output:

total 0 -rw-r--r-- 1 surmandal surmandal 0 2008-04-14 13:05 saroj
# Enjoy Mounting the Remote DIR.
Current Location: TV Room
Current Music: Mero aakhan ma rakhne..by Narayan Gopal

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April 11th, 2008


12:04 am - My Bash History
here is my Bash History


root@Black-Box:~# history|awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn|head
81 gunzip
69 make
68 nmap
58 nc
52 ssh
48 route
39 aircrack-ng
32 ps
25 iwlist
22 netstat

And Post yours too in comments section

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April 10th, 2008


10:23 pm - My Photographs Taken by ME.
Here is the link to my PHOTO gallery. Here you can fine some photographic arts.

http://pics.livejournal.com/surmandal/

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February 19th, 2008


11:02 pm - many way to Secure the Windows BOX
1.Don't create any login accounts with strong passwords
2.Do all work from the adminstrator account ( By Default Windows does it, So no need to do anything)
3.Do not bother with patches no matter how critical (Windows will prompt you to update, just ignore it)
4.Don't disable the guest account
5.Don't change/Rename the name of default administrator account
6.Enable as many network protocols as you can
7.Use Internet Explorer, not Firefox coz firefox block malware.
8.If you want your system to get infected with all kinds of malware DO NOT use Firefox or anytype of pop up blockers
9.Do not increase the Security Level of  Internet Explorer from Security tab.
10.Do not Patch the Internet Explorer.
11.Enable all the javand asp script so that others can install the software,Remotely.
12.Do not Use any Firewall
13.If yuor are using XP Then do not install SP2.
14.Surf Serial/Crack/Warez/script kiddie sites and always trust their sites
Porn sites with no protection
15.Download and run the Attachment that is sent by un-known Person.
Current Location: My Bed
Current Mood: geeky
Current Music: maan ko kura lai baadhi narakha by Danney

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February 15th, 2008


10:23 pm
What to say.........nothing to say :( . Listening very oldies Nepali SONG. Beyond the imagination. One of my friend gave me these lovely collection. THANKS to  royal for such a LOVELY Collection. now i can bet that even Radio NEPAL Doesn't have a such a collection although these all songs recorded at  there but i guess they have lost it :(. Don't think that i am gonna share these lovely collection :p . PM me I will think about it. why i am writing these because previous 2 writing is all about Pure Technical stuff. this is a journal page so i thought that why not write something even it is CRAP. I am not trying to say that this is a Journal but you know....who knows by writing this kind of crap may be i can write like a pro. ;) I can't express this moment ...wow such a classic Nepali songs on earphone, laptop on chest, laying on bed, wireless broadband connection and talking with UFO(unidentified female object). 2 weeks ago just got a miss call from her. now we became a good phone friend. I love this moment. I wish i could hold these moment GOD please give me the access for this.. after having a hail life [ in 6 am collage, 10-6 office and after 8 PM online class :(  ] so i love this moment. but this moment come rarely in my Life. ie just passing through ....;) . ok this much for now. next time i won't type this kind of crap he he he. will bring technical stuff on this page...
Current Location: My bed.
Current Mood: [mood icon] cheerful
Current Music: jham jham paani paryo aasar ko raat
Tags:

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February 13th, 2008


12:10 pm - transparent proxy with Squid in 3 easy steps
Server Configuration (Documented on Centos 4.04 OS)

    * Step #1 : Squid configuration so that it will act as a transparent proxy
    * Step #2 : Iptables configuration
          o a) Configure system as router
          o b) Forward all http requests to 3128 (DNAT)
    * Step #3: Run scripts and start squid service

First, Squid server installed (use up2date squid) and configured by adding following directives to file:
# vi /etc/squid/squid.conf

Modify or add following squid directives:

httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
acl lan src 192.168.1.1 192.168.2.0/24
http_access allow localhost
http_access allow lan

Where,

    * httpd_accel_host virtual: Squid as an httpd accelerator
    * httpd_accel_port 80: 80 is port you want to act as a proxy
    * httpd_accel_with_proxy on: Squid act as both a local httpd accelerator and as a proxy.
    * httpd_accel_uses_host_header on: Header is turned on which is the hostname from the URL.
    * acl lan src 192.168.1.1 192.168.2.0/24: Access control list, only allow LAN computers to use squid
    * http_access allow localhost: Squid access to LAN and localhost ACL only
    * http_access allow lan: — same as above –

Here is the complete listing of squid.conf for your reference (grep will remove all comments and sed will remove all empty lines)
# grep -v "^#" /etc/squid/squid.conf | sed -e '/^$/d'

Output:
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
hosts_file /etc/hosts
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl purge method PURGE
acl CONNECT method CONNECT
cache_mem 1024 MB
http_access allow manager localhost
http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
acl lan src 192.168.1.1 192.168.2.0/24
http_access allow localhost
http_access allow lan
http_access deny all
http_reply_access allow all
icp_access allow all
visible_hostname myclient.hostname.com
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
coredump_dir /var/spool/squid

Iptables configuration
Next, I had added following rules to forward all http requests (coming to port 80) to the Squid server port 3128 :
iptables -t nat -A PREROUTING -i eth1 -p tcp –dport 80 -j DNAT –to 192.168.1.1:3128
iptables -t nat -A PREROUTING -i eth0 -p tcp –dport 80 -j REDIRECT –to-port 3128

Start or Restart the squid:

# /etc/init.d/squid restart
# chkconfig squid on

Testing squid proxy is working correctly...

See access log file /var/log/squid/access.log:
# tail -f /var/log/squid/access.log

Ripped from cyberciti.biz


Current Location: My bed.
Current Mood: busy
Current Music: Background noise made by friend

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February 12th, 2008


11:36 pm - Gmail and HTTPS
hey have you ever monitored the gmail page. Recently, I saw that gmail whole session is not encrypted.  First i hit the gmail.com then enter the username and password. during this stage it is https but after login to mailbox page it is http only. that means whole session is not encrypted. what do you think?? but hitting https://mail.google.com remains https.
I capture all the contain from gmail. I used  wireshark and tcpdump to capture the gmail session. so if you don't want to MITM attack against  your  gmail session use https://mail.google.com. :)


Now we have a solution too. Here is some which i haved ripped from nepsecure having great discussion.
1. "well if u need security there is always https://mail.google.com which
encrypts whole session, from login to logout as u've mentioned.
But that aside, https isn't always flexible IMO, and its slow as well.
Thats why i think http://mail.google.com is there. Depending upon how
paranoid u are about ur security. :)" -----bibastha

2. "So folks, either https://mail.google.com OR pop3 over SSL should do for all your privacy need at least for Gmail & Yahoo! :-)" -------nepbabu

3. "use Greasemonkey script (GMailSecure) it forces gmail to use secure
connection for all request by redirecting  http://gmail.google.com/ to
https://gmail.google.com/
though POP3 over TLS is best solution" ---------bipin




Current Mood: [mood icon] curious
Current Music: para laijau fool haru by prem dhowj pradhan

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