Wireless Woes

My struggle with wireless networking has spanned several years. One major problem with wireless is the short coverage range. As a result, rooms that are further from the router experience spotty coverage at very low speeds(1 Mbps). One of the initial solutions I have tried is using a wireless ...

unrar

I am quite surprised to find that linux has quite poor support for rar files. I have tried both unrar-free as well as the non-free version but both fail spectacularly at decompressing password protected multi-part archives. A few seconds into decompressing, an error message pops up claiming the file is ...

Problems with Distributed Architecture

As reported here, a bitcoin mining pool has contributed 51% of total hashing output which theoretically allows them to double spend bitcoins or to deny other miner's transactions. I am not an expert at bitcoins but it appears that the distributed architecture is a crucial feature in ensuring the ...

Cheat And Win - Samsung SSD Contest

The "Fastest Game On Earth" contest is similar in concept to the SoC quiz. Every time you "catch an SSD", you get an additional chance to win an SSD. With unlimited entries, all we need to do is to replay the packet again and again. So what safeguards are in ...

New Form of DDoS

I was always hesitant to use pay-as-you-use services like Amazon AWS, Microsoft Azure and Google App Engine for fear that the cost might spiral out of control if I turn out to be the target of a DDos attack. I did eventually try out app engine, but only because it ...

Web Development in Singapore

In light of the recent fiasco over the NDP website, I thought it would be apt for me to share my thoughts on how I believe web development in Singapore has ended up in this dismal state today. This is definitely not an isolated case, the series of breaches by ...