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July 16, 2005

Gmail - Are you missing mail? Executables not allowed

Filed under: GMail around 9:21 pm

As a security measure, Gmail doesn’t allow you to send or receive executable files that could contain damaging executable code. Gmail won\t accept these types of files even if they are sent in a zipped format and is bounced back to the sender automatically. Bypass is removing the extension and having recepient re-add it.

Senang saja… heheheheee.. you can zip it up and change the extension (i.e. .z1p or .woot or .bl) and have the recipient change it back to the original extension. In otherwords, just rename it to some other extension , .tgz -> .png works, or .renametotgz which is smarter

Another way is just use WinRAR because:

  • It compresses files better
  • It will send perfectly fine you dont have to change anything

Moving to Gmail? Take your Hotmail contact list with you

Filed under: GMail around 9:14 pm

If you are moving to Gmail like thousands of other people, and would like to take your contact lists from Hotmail to Gmail, here’s how you can do it.

In other words, if you are tired of all the spam you are getting with Hotmail, if you are tired of having to sign in every 30 days, if you want to make sure your messages don’t get deleted for no reason, here is a handy way to make that switch to G-Mail.

Using Gmail for Music Sharing

Filed under: GMail around 7:46 pm

Everybody knows that gmail accounts come with over two gigabytes (and counting) of space. I know that sound awesome, but who can use all that space for just emails?

This is a very crafty way to get more out of gmail. Personally, I feel it’s just a little too late. There are so many other ways to share files with friends whether it be services like dropload.com or just over IRC or any messenger program. The one advantage this does have is its a form of ‘permanent’ online storage which is a cool way to back up music files; however, at 2GB an account…Is it even worth it? Also, how many friends would you actually feel comfortable sharing that password with… I can’t think of too many - but hey, maybe that’s just me. :)

Last I checked it was a 10 meg file limit size.. Movies can be done with a number of third party applications like Peer2mail though it will take a LOOOONG time to reattach all the parts. Well its a practical idea for music, but for video files its pretty impractical. Video files are just too large to be segmenting into tiny files and then sent and “recompiled”.

According to Google’s policies on the usage of Gmail, you are not allowed to give other people access to your “personal” gmail account. Now I’m not saying that I don’t share any gmail accounts me and my mates have, but don’t be upset if Google shuts the account down for breach of its policy on sharing, I know it’ll be pretty hard to prove you’ve shared access but it might happen (but its a long shot).

This is all well and good, until Google decides to scan the accounts looking for those with excessive numbers of files and removes those accounts for violating the TOS. Google shouldn’t be able to detect your sharing an account because the site will act as a proxy and Google will only see one IP. Of course this also slows it down quite a bit. Not saying they’ve done it yet, but I consider it just a matter of time, really.

Bear in mind that accounts that transfer a lot of data in a short period of time (lets say around a gig in 6 hours) are suspended by gmail. Although in most cases are unsuspended 24 hours later.

This is why I use the GMailFS for personal use. Works the same, but you can download from your gmail account. Get the latest GMailFS, create a filter to filter “GMailFS” to a label and archives and your in the sunshine.

Using Gmail as a Spam Filter

Filed under: GMail around 7:41 pm

Could Gmail be used as a spam filter for any e-mail account? The answer is yes, it can. And here’s how!

Gmaps hack shows effects of high-yeild explosive detonations

Filed under: Google Maps around 3:22 pm

Here’s a haunting Gmaps hack:”The High Yeild Detonation Effects simulator maps overpressure radii generated by a ground-level detonation; these radii are an indicator of structural damage to buildings.”

GMail Skinning Quick Guide

Filed under: GMail around 5:47 am

Want a new look for your gmail account? Then visit this site to learn how to skin your gmail account.

Use GMail as a podcast feed?

Filed under: GMail around 5:44 am

GMail already supports RSS feeds (without attachments unfortunately) and that if used incorrectly can indeed be a security vunerability.

However, these are locally hosted, user created RSS feed based off of SSL POP access to a GMail account. Where’s the security vunerability there if that RSS feed is never posted online? The beauty of this, it’s not meant to be posted online - its a feed of YOUR GMail that you can plug into iTunes or any other podcatcher and automatically get mp3s sent to your GMail account added to your mp3 player. A corollary to that is you could post this feed online and let other people subscribe to your GMail inbox, but that’s not the point of the story.

The Google supplied GMail feed does not support attachments, so this is more of a notification rather then a podcast client.. BUT this is a suggestion a POP3 to RSS translation. Googling for a solution led to a page where someone had clearly already thought of this idea back in FEBRUARY. Interestingly enough it was while getting the Mailfeed PHP script to work with GMail that led to them.

It’s an interesting idea but with a few issues with it though…

  • If the email account was known, then there’s nothing to stop anybody else from inserting their own stuff into your “feed” by simply emailing it to your gmail account. This could be worked around with a clever combination of labels and/or filters though.
  • GMail’s built-in RSS feeds, at the moment, require a password to access them. So anybody getting your feed (if it was direct through GMail) has your account password.
  • GMail’s feed doesn’t convert attachments to enclosures, so using their RSS feed is a dead end anyway.
  • Making a POP3 to RSS converter would be possible, however you still need to:
    1. Host that RSS locally.
    2. Provide enclosures which allow listeners to get the content, which they can’t do if you leave it on the GMail account. So the bandwidth problem isn’t solved there. In the case of distributing podcasts through GMail- if listeners were subscribed to their GMail accounts and you sent an email to 100 listener’s GMail accounts, your bandwidth is just for uploading the podcast one time. It’s like a podcast e-newsletter. Whatever program/script we develop to do this would need to separate different incoming podcasts somehow.
  • If you want to make an RSS feed for your own account which supports enclosures, thus letting people send you audio to listen to via a podcast client, then that would be possible, but given the setup of GMail, it’s the only real useful thing you could do with this idea. Once you have hundreds of people doing that, you could potentially just gmail them all your podcast, and therefore, bandwidth is just the cost of you uploading your podcast once to GMail, google takes care of the rest.

Mix in a little GMailFS and if you email out a podcast with the subject of GMAILFS: foofilename.mp3 [foosize;a;1] then GMailFS users will automatically download the file to their GMail Drive. Now its just a matter of dumping these files automatically into an mp3 player. Perhaps a script to generate an RSS feed off the files in the GMail Drive? It doesn’t have to be RSS neccesarily either here, but most podcatchers understand RSS enclosures so it’d be an easier way to interface them.

If someone wrote a program that did all of this using GMailFS or equivalent perhaps they should call it Poodcatcher :P

Here’s some solutions:

Solution 1) Email files to GmailFS users with the subject of GMAILFS: foofilename.mp3 [foosize;a;1] and the podcasts will automatically be available on everyone’s gmail drives. GmailFS download.

Solution 2) Use Gmail POP access plus a script that converts POP mail to RSS like this one or this one.

Unanswerable questions

Filed under: Ntahapehape around 5:42 am

Internet urban-legend-busters Snopes have published a list of some of the funniest questions they’ve been asked.

It is times like this I begin to loose hope for humanity as a whole. If anyone is stupid enough to ask if there are such things as blood sucking invisible witches and ghosts what chance do we have.

If you got rid of all the ’stupid’ people… guess what?
There’d still be stupid people. Don’t shun these people.
Freedom = Choices = someones going to do something stupid.
And those who learn from those stupid people, are the ’smart’ ones.
There arent stupid questions…

Great Google AdSense tips

Filed under: Google AdSense around 12:38 am

Links to great Google AdSense tips.

Sniffing in a Switched Network

Filed under: Net Security around 12:37 am

Here is a nice presentation on sniffing packets in a switched network using ARP cache poisoning. There is a recipe too to hack a switch using Ettercap and Ethereal.

With regards to using FTP and Telnet and prove that our windows admins are idiots because they have used our windows id/passwd for insecure services like POP, web proxy etc.. So our windows passwords are all floating around on the network as easy to read as can be.

Ettercap has always been a personal favorite to some; dsniff too (wish it was still being developed). It truely is scary what’s floating about unprotected out there. I’ve never tried, but I’d be curious what ettercap connected directly to a cable modem could pick up.

Windows users can stick with CAIN&Abel just as easily though, little nicer interface infact, but ya don’t need it.. :p