outage

[parker309]

2K. I have uses out of the country that access OWA and an FTP server during their normal coarse of the day, which is my middle of the night. When I came in this morning all was fine. I cannot find any reference in event viewer that indicates an outage. My ISP states they did not have an outage. Of course!

Are there any other places within my servers that would help guide me to the cause of the outage? Any help would be appreciated. Thanks.

 

[GlenJohnson]

Need more info. What happened? Glen A. Johnson
Microsoft Certified Professional
glen@nellsgiftbox.com


"A person often meets his destiny on the road he took to avoid it."
Jean de La Fontaine (1621-1695); French poet.

 

[parker309]

Don't know. I received a mail this morning from one of my guys that said they couldn't get to the FTP site or OWA from Europe. It all came back around 3:00am however. I contacted the ISP and they stated that they had no outage. I notice in the event viewer that my servers here couldn't replicate with servers at a remote office on the other side of town. They happen to have a different ISP. From the event viewer it looks like replication failed at 1:34am and was restored at 2:25am. Servers did not restart, they just began replication again. I think it was the ISP......

 

[GlenJohnson]

Did you check with the other isp? Maybe replication locked up the servers for a while? Glen A. Johnson
Microsoft Certified Professional
glen@nellsgiftbox.com


"A person often meets his destiny on the road he took to avoid it."
Jean de La Fontaine (1621-1695); French poet.

 

[parker309]

I thought of that, but the FTP site which is located here (site1) is infront of the firewall and the guys in Europe couldn't access FTP during those times. The FTP server is independent of the Domain and really is only affected if there is a network outage. Replication between the servers is done through a firewall VPN. I host the PDC at site1 and the other location (site2) just requests replication. The event viewer at site2 only states that during the specified time it couldn't contact the replication server at site1.

Thanks for your help.

 

[GlenJohnson]

Check c:\winnt\system32\log files and see if you had a dos attack. Just a thought. Glen A. Johnson
Microsoft Certified Professional
glen@nellsgiftbox.com


"A person often meets his destiny on the road he took to avoid it."
Jean de La Fontaine (1621-1695); French poet.

 

[parker309]

I just posted this as a new thread, but thought it might help in the diagnosis. When I run nslookup from my remote site (site2), below is the error message;

***Can't find servers name for address xxx.xxx.xxx.xxx: Non-existent domain.
***Default servers are not available
Default Server: UnKnown
Address: xxx.xxx.xxx.xxx

The IP address is correct, and I can even ping the server listed above by FQDN.

Why would nslookup reply with this error? Thanks in advance.

 

[brontosaurus]

I replied to this in the other thread...you need to set up Reverse Lookup Zones...