Internal DNS Zone file

Thanks for your help; I am trying to set up an internal DNS zone file using 10.1.1.X.zone AND an external zone file. I am moving between providers with different IP addresses and still need to be able to resolve. Clear as mud huh.

Here is my Internal DNS Zone file

$TTL 2D
@ IN SOA localhost. root.localhost.
2004021700 ; serial
1D ; refresh
0H ; retry
0H ; expiry
2D ) ; minimum

IN NS localhost.

www IN A 10.1.1.20
webfuse.net IN A 10.1.1.21
mail IN A 10.1.1.50
data IN A 10.1.1.30

1 IN PTR fw1.
20 IN PTR URL.
20 IN PTR webfuse.net.
30 IN PTR db.webfuse.net
50 IN PTR mail.webfuse.net.

www is my web server, mail is mail server and data is a MySQL server...webfuse.net is the domain I want to serve within my LAN.

Here is my TLD zone file for webfuse.net.zone

$TTL 2D
webfuse.net. IN SOA ns2.webfuse.net. root.webfuse. (
2004021500
0 ; serial
1D ; refresh
2H ; retry
1W ; expiry
2D ) ; minimum

IN NS ns2.webfuse.net.
IN MX 10 mail

cisco800h1 IN A 162.39.246.169
webfuse.net IN A 10.1.1.21
fw1 IN A 162.39.246.170
www IN A 162.39.246.172
ns2 IN A 162.39.246.173
ns1 IN A 162.39.246.221
ns3 IN A 162.39.246.222
cisco800h2 IN A 162.39.246.209

This was my working zone file when I was with another provider; I have changed webfuse.net to 10.1.1.21 to try and use the TLD for my LAN for testing.

In closing when testing settings how can I know if what I've done is working NOW...apparently I made changes that did work but the time it took to start resolving changed and I had made other changes that took over later and lost the correct settings...that that make ANY sense??

Thanks again for your help
Chuck

Well, you gave us a ton of information, but I'm not sure what the problem is. I didn't look too closely at the zone information since I don't know if there's any problems I should look for or what they are if there is.

This is the only real question I could find:

"In closing when testing settings how can I know if what I've done is working NOW"

By whether you can access webpages and if sending mail works. If nothing is broken, then everything is working.