Pred Forte Bad Taste

Monday, September 24th, 2007

My lasik experience taught me how to use eye drops. The bad taste of Pred Forte comes from drainage through your tear ducts and then which empty down the back of your throat.

If you close your tear duct and tilt your head back for 2-3 minutes it should be enough to prevent or lessen the bad taste in your mouth. This will help prevent the drops escaping down the tear duct and leaving a bad taste in your mouth.

Your tear duct is located on the edge of your eye next to your nose. Almost no pressure is needed to close your tear duct, the act of placing your finger gently against the side of your nose should be enough to close it. It should feel like a small bulge.

The problem with SPF records

Monday, July 30th, 2007

Quick does your domain have a SPF record? In linux type the command below and you should see something like:

# dig yourdomain.com TXT +short
“v=spf1 a mx -all”

I’ve been kind of appalled on how some websites still haven’t implemented SPF records to fight spam. On top of the non adopters you have people who haven’t implemented their records correctly. Most of the SPF implementations are from idiots that use a horrible wizard that suggest they use a soft fail(?all) for any server that doesn’t match their allowed server list. Soft fail doesn’t work. All major email services let through SOFTFAIL and NEUTRAL email. The SPF website has a better spf wizard but unfortunately it doesn’t come up in most searches.

Why should you use -all over any other? It means FAIL. Its the only way to tell another mail server that it shouldn’t accept mail from an unauthorized source. Any server that is not defined in the SPF record should automatically fail authentication. Using FAIL is the only way to minimize spam. SOFTFAIL and NEUTRAL do nothing to combat people masquerading as your domain. FAIL is also the only way to stop receiving bounce messages for spam sent spoofing itself as coming from your domain.

“+” Pass
“-” Fail
“~” SoftFail
“?” Neutral

Don’t understand how SPF works? Your SPF record should identify all the servers that are allowed to send mail as your domain. All modern websites let through email that is SOFTFAIL and NEUTRAL and PASS. I blame SPF Generators for this problem as most of them generate SOFTFAIL which all the big email sites like GMail and Hotmail let through.

Here is what all email servers do when they check SPF records

Result Explanation Intended action
Pass The SPF record designates the host to be allowed to send accept
Fail The SPF record has designated the host as NOT being allowed to send reject
SoftFail The SPF record has designated the host as NOT being allowed to send
but is in transition
accept but mark
Neutral The SPF record specifies explicitly that nothing can be said about
validity
accept
None The domain does not have an SPF record or the SPF record does not
evaluate to a result
accept
PermError A permanent error has occured (eg. badly formatted SPF record) unspecified
TempError A transient error has occured accept or reject

The only option to combat spam effectively is to FAIL any server that is sending email and is not defined as allowed.

PLEASE FAIL ANY UNAUTHORIZED EMAIL

Thanks

Firefox Productivity Tip

Monday, July 30th, 2007

Do you know the power of the middle mouse button? It opens and closes tabs and makes browsing the web so much more enjoyable. I was surprised yesterday when I was watching a friend of mine fumble around with his Firefox. For me, everyone should know how to use their mouse and its also something that is missing from internet explorer.

In summary, clicking on a link with the middle mouse button will open the link in a new tab and if you click on the tab with the middle mouse button it will close the tab which is less frustrating that aiming for the little red box. Is your mouse missing a middle button? Ctrl-left click also works.

Getting more out of GMail

Sunday, July 22nd, 2007

GMail is the gold standard in file sharing for college students. Every group project I’ve ever worked on since GMail was how everyone shared files between one another. Recently while using Google Reader I thought about my GMail usage and wondered why it doesn’t have any keyboard shortcuts. Well it does and I needed to turn them on.

Settings -> Keyboard Shortcuts on

Granted now you have to learn how to use them. I’ve included a list of GMail keyboard shortcuts that I’ve found. You can read the official list but I think mine is easier to use.

c - compose
/ - search
k - move to newer conversation
j - move to older conversation
n - next message
p - previous message
o or enter - open a conversation
u - return to conversation list
y - archive a conversation
m - mute user, all email from user is automatically archived
x - select conversation
s - star a message or conversation
! - report spam
r - reply to a mail
a - reply to all recepients
f - forward message
esc - escape from input field
ctrl+s - save draft
tab -> enter - send message
y -> o - archive your conversation and move to the next one.
g -> a - show all mail
g -> s - show starred conversations
g -> c - show contacts list.
g -> d - show drafts
g -> i - show inbox