Archive for July, 2009

I’m usually one of the first people on the block to try out new tech. Some of it isn’t quite ready for primetime (most of the “hand-held Internet devices” I’d tried before the iPhone, like the Nokia N series, the Sony Clie, etc) and some was fantastic but ahead of the curve when I tried it, but is mainstream now (Tivo, for example).

Two technologies I never could get working to my satisfaction I now can’t live without: RSS Feeds and IMAP.

RSS Feeds:

RSS (“Really Simple Syndication”) is a nifty way to get updates from almost any website. Pretty much all blogs and content-driven sites now offer RSS feeds, and they simply make life a gazillion times easier. I’d tried RSS several times before, but a combination of poor readers and a lack of feeds always made it a mass of fail. Now-a-days, with readers like Google Reader and everyone offering an RSS feed (and with sites like Feedburner that let you make a feed from anyone who doesn’t) RSS is very ready for primetime.

Put simply, a decent reader and a bunch of RSS feeds let me make a custom “newspaper” that aggregates all my periodic content together in one place. Its especially useful for sites that *occasionally* update (like a piece of software, for example) — I don’t need to remember to regularly check them for updates.

I also cut about an hour per day out of my “check all my followed sites for updates” routine, easily.

IMAP:

IMAP is the “other” common method for checking email on a client, the other being POP. POP is like checking real mail: it takes the mail from the mailbox and into the house (the client). IMAP is like keeping the mail in the box, but I can look at it from anywhere, and anything I do to it (like toss a piece of junk mail) means I don’t have to look at it again.

When you access mail from multiple places (in my case, my iPhone and a web browser, as I’ve tossed any stand-alone client), its the only way to go. Shortest version: If you use an iPhone or other remote reader to check your email in a supplementary way, use IMAP. It’ll save you time and endless “Oh, did I reply to that?” and “Oh, I downloaded it to my phone!” nightmares.

(Edit: the title was badly worded. I love RSS/IMAP, and regret waiting so long to embrace)

Its a fact of life that any server on the Internet gets hack attempts. I have several scripts that regularly monitor such attempts, and silently blackhole such things. For obvious reasons, I won’t discuss them here. If you are curious, email me directly.

The amusing thing is the names these script kiddies try to log in under. Now “root” and “admin” make sense, as do common names like “mike” and “alex”.

But WTF is up with some of these? “Fluffy”? “PlcmSplp”? Seriously?

Edit: I should have googled it first. Turns out that “PlcmSplp” is the default username for a provisioning a Polycom phone via ftp: Polycom Phone Provisioning with AstLinux

Jul 5 20:31:10 node1 sshd[24358]: input_userauth_request: invalid user eaguilar
Jul 5 20:31:19 node1 sshd[24392]: input_userauth_request: invalid user payala
Jul 5 20:31:24 node1 sshd[24409]: input_userauth_request: invalid user estudiante
Jul 5 20:31:27 node1 sshd[24426]: input_userauth_request: invalid user alex
Jul 6 21:45:32 node1 sshd[32092]: input_userauth_request: invalid user apple
Jul 6 21:45:36 node1 sshd[32109]: input_userauth_request: invalid user magazine
Jul 6 21:45:40 node1 sshd[32126]: input_userauth_request: invalid user sophia
Jul 6 23:20:36 node1 sshd[32610]: input_userauth_request: invalid user mike
Jul 6 23:20:40 node1 sshd[32627]: input_userauth_request: invalid user mike
Jul 6 23:20:45 node1 sshd[32644]: input_userauth_request: invalid user PlcmSpIp
Jul 6 23:20:50 node1 sshd[32661]: input_userauth_request: invalid user test
Jul 8 15:02:39 node1 sshd[12183]: input_userauth_request: invalid user fluffy
Jul 8 15:02:43 node1 sshd[12200]: input_userauth_request: invalid user admin
Jul 8 15:02:47 node1 sshd[12217]: input_userauth_request: invalid user test

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So one of our grad students had an extra 30L of liquid Nitrogen he needed to vent, and I have this warm computer room…

Nitrogen displaces O2...

All the pics are on my photobucket

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