March 19th, 2010 admin
Here’s a quick tip – how to block SMTP from leaving a network (apart from specific mail servers) using a Cisco ASA 5500 Series firewall.
STEP 1: Allow specified mail servers to sent SMTP
access-list INSIDE_ACL extended permit tcp <mail server IP>255.255.255.255 any eq smtp
STEP 2 : Deny SMTP to all other devices
access-list INSIDE_ACL extended deny tcp any any eq smtp
STEP 3: Allow all other traffic
access-list INSIDE_ACL extended permit ip any any
STEP 4: Apply ACL to inside interface
access-group INSIDE_ACL interface <name of inside interface>
Posted in IT Hints and Tips | No Comments »Tags: ASA, Cisco
March 18th, 2010 admin
Wow – didn’t see that one coming!
Google have announced today that they’re planning a browser opt-out for users to block being tracked by Google Analytics. Unfortunately they didn’t really give much away, such as how they’re going to promote this, so it’s difficult to see what impact this may have on statistics.
If the opt out becomes widespread it will definitely harm the value of implementing Analytics. Maybe log based analytics will become more prominent?
Here’s the announcement from Google.
Posted in Google Analytics | No Comments »Tags: Google, Google Analytics
March 18th, 2010 admin
Do you have one of these lying around?
It’s a USB bluetooth adapter which comes with some wireless Keyboards and Mice from Logitech and Dell. Did you know you can use it to enable full bluetooth functionality on your PC? The secret? When you plug it into the PC – press and hold the “connect” button as you plug it in!
Simple!
Posted in IT Hints and Tips | 14 Comments »Tags: Bluetooth, C-UV35
