Tag: understanding

Convenience Can Be Costly : Understanding Cash Advances

You’ve just opened your credit card bill and attached to your statement you find a “convenience check” included. It may already be filled out with a dollar amount such as $300, $500, or even $1,000. Your mind fills with ideas of what you could buy with this “instant” money. A new summer wardrobe, a nice dinner and tickets to a concert, a weekend getaway.

Understanding RAID

What does it all mean?

RAID 0, Duplexing, Mirroring, Striping with parity, ECC, the terminology bog goes on for what seems to be forever. Do you need to know what all of these mean? If you’re considering a RAID array for your network, the first step is understanding the different terms before you even think about making a purchase.
So, off we go…

Understanding IPTABLES

Disclaimer

Packet filtering is something I’ve always hard a hard time getting my head around. Not the basics; that’s easy
enough. It’s just the incredible level of detail, the difficulty of keeping it all in your head at once.

And then, of course, there are all the different flavors: ipfw, ipfilters, ipchains, and now iptables. It gets more
than a little confusing, and I’ve never taken the time for more than a cursory look at any of them.

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