Connection Issue


hello all,

 

hoping can weird issue.

 

i have 2 web servers connecting third server has sql 2005 database (named instance).

one web server in dmz , other along database server inside our lan.

both of these web servers connect sql 2000 database (default instance) on same server sql 2005 without issues

the web server inside of lan (windows 2003) able connect 2005 database without issue.

the 1 in dmz (windows 2000) cannot , receives a named pipes error when trying connect via sql native client

 

when attempting connect via connection string without odbc in .net 1.1 application (using same data works web server inside lan) ->

sql server not exist or access denied.

 

we have opened ports 1434 , 1433 access dmz lan after doing research has not helped. have remote connections named pipes , tcp/ip turned on well.

 

 

any assistance issue appreciated.

 

thanks!

probably sql server ok. network problem.
have checked firewalls/proxies? possible establish connection dmz machine 1434 port on server? sure db server available outside lan, 1434 , 1433 ports forwarding configured on firewall/proxy, etc?
you can check (from dmz machine): telnet <hostname> 1434
if cannot connect, see.


Architecture  >  Architecture General



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