# Weekly Tech Lesson

## Week 49, Posted Monday 12/6/2021

Content changes every Monday @ 1AM!! Check back once per week. Learn! Review! Test Yourself!

## Weekly Tech Lesson

 [Print Lesson]

#### Week 49, Posted Monday 12/6/2021

Content changes every Monday @ 1AM!! Check back once per week. Learn! Review! Test Yourself!

 FAQ of the Week Question: I set up the SMTP virtual server on my web hosting server. I can send from other boxes, but not from websites hosted on the box that has the SMTP Virtual Server. Any ideas? Answer: Check the IP address of the SMTP Virtual Server. If you want to serve ALL IP's on that box, then set it to All Unassigned IPs. Tip of the Week Tip: Definition of the Week MbPS:  Megabits (mb) per second. A bit is either a 0 or 1 (a digit) and a byte is a string of 8 bits. 8 mbps (megabits per second) equals 1 MB/sec (megabytes per second). Therefore 54 mbps is equal to a max of 6.75 MB/second. Megabits per second (note the lowercase b). A bit is either a 0 or 1 (a digit) and a byte is a string of 8 bits. Don't confuse mbps (megabits per second) with MBPS (MegaBytes per second). A megabyte is just over one million bytes of data (1,048,576) and is abbreviated as MB/sec. It takes eight megabits (mb) to equal one megabyte (MB):8 mbps (megabits per second) = 1 MB/sec (megabytes per second) Therefore...11 mbps = a max of 1.375 MB/second (i.e. wireless B NIC)54 mbps = a max of 6.75 MB/second (i.e. wireless G NIC)100 mbps = a max of 12.5 MB/second (i.e. typical NIC) Link of the Week ISO Recorder Software that allows you to burn a .ISO image to CD on Windows XP or Vista and to DVD on Vista. Free and very easy to use (right click on image and select Copy Image to CD. File of the Week None This Week

# Lastest Tech Flashcard

## Our flashcards are part of our library of tidbits.

#### Tidbits are FAQs, Definitions, Tips, and Code Snippets from our knowledge base.

Tip: Is your IP blacklisted?
 How to check if your IP address is blacklisted:Go to http://www.mxtoolbox.com/ and enter in the IP Address of your outgoing IP address.
 www.prestwood.com For service: 916-726-5675or support@prestwood.com