Is this dangerous?

[SP]

ads.jacksonsun.com
IP Addresse: 127.0.0.1

Status: Active

The host, ads.jacksonsun.com , is mapped to your local
loopback address. A local loopback address is a special
Internet address, 127.0.0.1, defined by the Internet
Protocol. A host can use local the loopback address to
send messages to itself. This means that any web browsing
to the host ads.jacksonsun.com will actually be
redirected to your computer.

 

[Bill Sanderson]

What generated this description?

Most folks would consider such an entry a protection, rather than a
danger--it keeps ads from being displayed.

However, there's some range of opinions about whether it is good to use the
hosts file this way. I prefer not to, myself.