powerbanks as UPS

Just a quick thought. Since most arm dev boards servers are powered by USB, if we want to include power redundancy, it doesn't make sense to use a traditional UPS. Firstly, UPS storage capacity tend to be quite large compared to the meager amounts of power an ARM processor ...

Useful mysql cmds they dont teach in class

show create table shows the code used to create the table, especially useful since I cant, for the life of me find a GUI in phpmyadmin to input/check foreign key constraints. The output will look something like this. CREATE TABLE `attendance` ( `id` int(11) NOT NULL AUTO_INCREMENT, `eid` int ...

Multiple inboxes with same email address

Ever since google decided to nerf their google apps free account privileges(I created my account earlier and was grandfathered 10 free emails), I have been toying around with several other providers of email service for custom domains. I discovered that I could actually have 2 accounts with exact same ...

preloading pages

For a long time, I have always wondered why my download managers always pops up dialog boxes to download files when I visit certain pages in chrome. I have always attributed it to false positives or buggy software. I stumbled upon the answer just a few days ago. Apparently, google ...

mysql optimization

Recently did quite a lot of mysql related administration. Found quite a few ways to optimise that may make future administration easier. 1) If you are going to add/drop databases very frequently, you might want to add innodb_file_per_table=1 into your my.cnf config file. This will allow mysql ...

private TLDs

Well, this is pretty old news but here are my views on ICANN allowing organisations to buy out an entire TLD. For those not in the loop, basically, in addition to .com, .net, .org and others, ICANN will be releasing lots of new TLDs so we could have stuff like ...