VNC Tips When Using a Monitor With Your Laptop

VNC viewer is an excellent tool which can be used to remotely control desktop of machine on your network. In today’s world almost each one of us uses a laptop for daily business which is typically connected to a monitor on the desk for projecting the laptop output and thus enabling ease of viewing. Though VNC works seamlessly here , the following few tips would enhance the experience and ensure you get the full screen view in your vnc session even when you have projected your content on to the….. Read More

Compile And Run Your Code Online Using CodePad

Have you ever been in a situation where you want to desperately try out a piece of code to see what will be the output of it; but are running here and there just to get a machine which has an installed compiler/environment for the same. This could happen when eg you are not in office and just have a eureka about your code OR suddenly want to try out some small change. How about a web service where you could type, compile and run your code and see what….. Read More

10 Minute Mail – Recommended Temporary Email Service

Today almost all forums/sites require you to register using an email-id in order to either see some specific content or ask a question. In most cases, it is the first time that you are visiting that website/forum and are circumspect about registering using your valid email address. The most prominent reasons in mind would be Spam emails from that forum/site Doubts about whether your email address would further get shared. Typically in such cases, either you would try to use some stale email address that you would have created sometime….. Read More

Ostinato – Free Ethernet Packet Generator For Windows And Linux

Hey I need to send a IP packet with destination address 172.26.57.86 and mac address 00:11:22:33:44:55 for doing some protocol testing. What should I do? Hmmm may be capture a similar packet in ethereal, modify the contents and send it out using some tool. OK — but what about checksums and all — how to make sure they are re-computed. Hmmm In that case — use Ixia/Smartbits — they will do the job for you OK — but the ports are limited and I wont get one just for sending….. Read More

Decode Packet Hexdumps using Packet Dump Decode(PDD)

00 13 72 8c be e1 00 90 1a 42 85 10 81 00 00 02 08 00 45 00 00 28 83 e5 40 00 7e 06 37 b7 7a a0 0b 2f 7a a0 40 c4 0e 99 01 bd ef cf 3c 3e bd 6a eb 69 50 10 fb 09 8e 5e 00 00 00 00 00 00 00 00 “Hmph. Another packet dump…” “Ok, what kind of packet is it? Let me see — offset 12, 2 bytes is 8100 ok it is a VLAN….. Read More

Find unique packet lengths from a Wireshark dump using Tshark

Some days back, I had a requirement to identify the unique packet lengths present in a Wireshark dump. As an example,  lets say the dump contains 5000 packets captured in all. Out of these lets say 4000 packets are of size 64 bytes and 1000 packets are of size 100 bytes. I am not interested in the number 4000/1000 — I only want the information that the total number of unique packet lengths present in the dump are 2 which are 64 and 100 bytes respectively. Normally, I would manually….. Read More