Jungledisk cannot connect / DNS lookup failed

R7AF
R7AF used Ask the Experts™
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One of our Windows 2003 servers uses Jungledisk for backup, but for some reason it cannot connect anymore. When starting the browser of this server, no pages can be opened. I can however connect to this server using Remote Desktop from a remote address. I believe Jungledisk uses port 443, but I'm not sure. The browser doesn't work with http and https. I've tried Firefoxportable to make sure it wasn't an IE-issue, but that didn't work as well.

PING / FTP
* I cannot ping to www.yahoo.com, but I can ping to the yahoo ip-address
* I can FTP and ping to ftp.linux.org.uk and many other addresses, and then they resolve to an ip-address

And for those addresses the browser works normally by the way!

I've tried to flush the DNS cash (ipconfig /flushdns), but that didn't help. The DNS services run. The firewall is disabled. I don't know why, but I'm not going to change that and that shouldn't be the problem here anyway.

Below you see the report from jungledisk in the windows log:

Warning Details (Jungle Disk Workgroup 3.02 Win32)
------------------------
Backup Upload Retry: D:\documents\scans\test.pdf
Exception Code: xDNSLookupFailed (2)
Time: 26-1-2010 0:38:47 (GMT+1)
Detailed Message: DNS lookup failed:
Could not resolve host: jd2-4928b311901e05191aa263224c840193-eu.s3.amazonaws.com;
No data record of requested type [jd2-4928b311901e05191aa263224c840193-eu.s3.amazonaws.com]
Error Location: JungleHTTP.cpp:867 JungleHTTP::MakeRequest
   via S3Request.cpp:220 S3Request::GetObjectEtag
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via DirectoryCache.cpp:160 DirectoryCache::GetCachedDirectoryEntry
   via JungleDiskBase.cpp:259 JungleDiskBase::GetDirectoryEntry
   via JungleDiskBase.cpp:19 JungleDiskOperations::PathExists
   via JungleDiskBase.cpp:209 JungleDiskBase::WriteFile

What can I do to fix this?
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PowerShell Developer
Top Expert 2010
Commented:

Check the DNS servers you've configured it to use?

If it's using an internal DNS server, check any Forwarders configured there? Checking can involve removing them completely and letting DNS use Root Hints (which is the default without Forwarders).

Chris
Top Expert 2005
Commented:
to check what DNS servers you have configured open a cmd window and type ipconfig /all and make sure that you can reach the configured dns servers
Commented:
web pages works because proxy server is responding and addresses are not getting resolved on the client, I agree it is DNS problem a good point to start is
_ run nslookup to see which server are you using and if it is serving your request (if ip is correct by
_ if this server is local to your network can you resolve anything from its local records
_ try to add the DNS of you ISP as alternate DNS server (if this works means it is you dns server problem)
_ then goto dns setting as chris mentioned
note: if forwarders and root-hints are disable, it means you have created root domain by mistake
make sure DNS Server service is started on the server
make sure DNS client service is started on the client
I assume you dns server and client is the same make sure both services are started

Top Expert 2007

Author

Commented:
Thanks for the tips.

It turned out that it was a problem with one of our DNS server. It's fixed now.
Top Expert 2007

Author

Commented:
The problem still isn't solved. I posted another question.
http://www.experts-exchange.com/Q_25106497.html

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