General discussion

Locked

IP address yes, DNS no

By bwalker ·
In the process of migrating website hosting locally, changing ISP. I can find our site by using the local IP address, but not the ISP assigned address, nor URL. Name resolution is deemed successful via Optasoft shareware. The ISP is propogating the web with our new information currently, but as of this morning we could still use the ISP assigned IP address. Now, no go. Any thoughts or suggestions?
Thanks

This conversation is currently closed to new comments.

3 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Comments

Collapse -

IP address yes, DNS no

by Stillatit In reply to IP address yes, DNS no

DNS resolution means that you asked a DNS server for the IP address attached to a name, and DNS found one. It says nothing about whether or not that computer exists or is reachable.

From what you write, it sounds like the new IP has not been put on the server. Use ipconfig /all on the server to check its IP address.

If your workstation is finding the server with the old IP's, it may be that your workstation also need to be updated with the new IP addresses. Try running tracert to the server IP. If you are reaching it in one hop, you are using the old addresses on both boxes.

As far as migration goes, starting from your end, here is approximately what has to happen:

Your server and other stations should be set to use the IP addresses from the new ISP. Use ipconfig /all on NT or winipcfg on Win9x to verify that each station has its new address.

The router between your network and the line to the ISP must be configured with an address in the same subnet as your new server address (on the inside of the router) and an appropriate address on the line side of the router. You should be able to ping these addresses from inside your network.

The router at the ISP must be properly configured. If they tell you the address, you should be able to ping it.

The ISP must put your new address range into its routing tables.

Once all this is done, your machines will be reachable from the internet. You should be able. from outside your network, to ping your server with its new IP address, and also by name, which should map to the new IP address.

Good luck.

Collapse -

IP address yes, DNS no

by bwalker In reply to IP address yes, DNS no

Thorough, to the point, and logically laid out.
Thanks

Collapse -

IP address yes, DNS no

by bwalker In reply to IP address yes, DNS no

This question was closed by the author

Back to Windows Forum
3 total posts (Page 1 of 1)  

Related Discussions

Related Forums