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Wednesday, September 18, 2013

LATEST ISSUES & TRENDS IN CYBER SECURITY &THREATS :IETE Diamond Jubilee National Seminar

 1.  Copy of the presentation that I gave at Ajay Kumar Garg Engineering College on the occasion of IETE Diamond Jubilee National Seminar.The Institution of Electronics and Telecommunication Engineers (IETE) is India's leading recognized professional society devoted to the advancement of science, technology, electronics, telecommunication and information technology. Founded in 1953, it serves more than 69,000 members through 59 centers/ sub centers primarily located in India (3 abroad) . The Institution provides leadership in scientific and technical areas of direct importance to the national development and economy.Association of Indian Universities (AIU) has recognized AMIETE. Government of India has recognised IETE as a Scientific and Industrial Research Organization (SIRO) and also notified as an educational Institution of national eminence. The objectives of IETE focus on advancing electro-technology. The IETE conducts and sponsors technical meetings, conferences, symposia, and exhibitions all over India, publishes technical journals and provides continuing education as well as career advancement opportunities to its members.


Sunday, September 08, 2013

Kernel panic after Ubuntu 12.04 LTS update : SOLVED

1.   I recently had installed one new VM with Ubuntu LTS 12.04 last week.All was running fine and I ensured it had all the updates but after one last update I could no more boot into the desktop..instead I started getting stuck at the grub and then kind of the following messages :

Kernel panic - not syncing:Attempted to kill init

unable to read itable block

exitcode=0x00000100


2.  After many attempts I could not solve the issue but all went okay after the following were ensured and run...

Step one...start ur PC and choose the previous Linux version for boot.Once you get into the desktop...get to the sudo mode and run the following :

sudo apt-get update

sudo apt-get upgrade

sudo apt-get dist-upgrade

3.  Should solve the panic...after a reboot.....

Sunday, September 01, 2013

IT SUMMIT : Next Generation Network security at AMITY,NOIDA,INDIA

1.  Recently attended  IT SUMMIT : Next Generation Network security at AMITY,NOIDA campus.The day long summit had three panel discussions including Big Data,Cloud and Next Generation Network security.I was part of the third panel discussion..uploading the ppt  here....







Tuesday, August 27, 2013

After What's APP : Now WeChat threat!!!!

1.  Few backs earlier I wrote a post about Security Issues in Whatsapp here. Now exactly on the same lines there is a proven issue on Wechat....

2.  WeChat gained an immediate success the moment it was launched few months back in India.Every one was so happy to adopt it in their respective androids but it seems that the application is not so secure as hackers have been able to bypass the security mechanism to decrypt the messages sent using the app and China could be potentially spying on Indian citizens...
 
3.   Rest ditto from Parity news at http://www.paritynews.com/2013/08/26/2487/wechat-is-a-threat-to-national-security-claim-researchers/

According to a couple of young researchers, Jiten Jain and Abhay Agarwal, the free messaging app doesn’t employ the best of encryption and security technologies, which leaves personal information of its users vulnerable to theft. To prove their point the researchers went onto demonstrate the ease with which the messages sent using WeChat can be decrypted, indirectly indicating that foreign governments could be doing the same thing for spying and surveillance purposes.

The researchers were discussing the potential risks to privacy of users because of surveillance techniques employed by service provides across the globe at The Hackers Conference in New Delhi India on August 25. The researcher duo claimed that app from Chinese Internet Giant Tencent is threat to national security.

Jain and Agarwal claimed that not only can the Chinese government access the chat logs, but they can also access each and every detail about users stored in their smartphones – ranging from contact lists, messages, calls, geographic locations, etc.

One of other points raised at the conference was that the Indian Government is not able to successfully utilize the vast potential of security researchers in India. The Government has failed to secure its websites never mind the security of the whole nation. Researchers present at the conference stressed for the need of raising awareness about security within government establishments and masses in general.

Researches urged the government to strengthen the security of its websites as well as digital data by grooming in-house security experts as well as by availing help from industry experts present in India.

4.   In fact the duo did not hold back to say that it is a severe national threat...and I agree to their view...but who cares!!!!elections are coming...we are not even bothered about so many internal threats...external is out of purview!!!!!SAD.

Monday, August 26, 2013

Finding Maximum frame size on the Network : PING makes it easy

1.   We know how to get the IP address of any website...we simply need to ping it.For example if we need to know the IP address of a website ie www.somesite****.com...then we only need to ping it....like shown in the screen shot below :

2.   So we get the IP address of the web site at www.somesite****.com as *.*.*.*....But if we need to know the maximum frame size that this can handle...what's the way out ?...ping will be able to assist us here too...we need to add some switches to it...so the next command goes like :

ping www.somesite****.com -f -l 1500 and we get this as the output :

3.   The display Packet needs to be fragmented but DF set means that the frame is too large to be on the network and needs to be fragmented.Since the -f switch is used,the packet was not sent and the ping command returned with this error.

4.   Now instead of 1500...type the same command with the attrib as 1300 like ping www.somesite****.com -f -l 1300


5.   So here we have got a bracket of size ie the maximum packet size is more than 1300 and less then 1500 bytes...so keep trying with values between 1300 and 1500 till ur reach the exact breaking point wherein the message in the ping display changes...so here the border line at which the message changes is shown in the screen shots below :



6.   So for the given www.somesite****.com ,the maximum frame size on the machine network is 1472 bytes....

7.  If you wanna try this in your network,then the 1300-1500 set that I have used may be different...so first you need to figure out those boundaries yourself!!!!!

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