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sql server replication
group:Merge replication through firewall
sql server replication:
We are trying to implement merge replication from pdas to a sql 2005 server. The basic setup can be seen here http://i93.photobucket.com/albums/l56/matt_woodcock/pda_connection.jpg The problem we have is the IIS server requires access to the sql snaphot via a UNC connection. The webserer is in the dmz and the sql server is on the lan, so a unc connection is not possible without opening more ports (curently only 1433 is open). Is there any way around this problem? Thanks.
Deploy your snapshot via an ftp server. The ports for this should be open
between your SQL Server and IIS server. The ftp server could exist on your lan. -- Hilary Cotter Director of Text Mining and Database Strategy RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. This posting is my own and doesn't necessarily represent RelevantNoise's positions, strategies or opinions. Looking for a SQL Server replication book? http://www.nwsu.com/0974973602.html Looking for a FAQ on Indexing Services/SQL FTS http://www.indexserverfaq.com [quoted text, click to view] <matt@slimming-world.co.uk> wrote in message news:1157625557.081122.269590@i3g2000cwc.googlegroups.com... > Hi, > > We are trying to implement merge replication from pdas to a sql 2005 > server. > > The basic setup can be seen here > > http://i93.photobucket.com/albums/l56/matt_woodcock/pda_connection.jpg > > The problem we have is the IIS server requires access to the sql > snaphot via a UNC connection. > > The webserer is in the dmz and the sql server is on the lan, so a unc > connection is not possible without opening more ports (curently only > 1433 is open). > > Is there any way around this problem? > > Thanks. >
thanks for reply.
As i understand the sql server needs to acess the ftp server via a UNC to place the snapshot files on it ( i.e. \\ftpserver\files\snapshotfiles). To do this the ftp server and sql server would need to be on the LAN (no firewall between them). In this situation the client would submit its changes and receive updates by connecting to the IIS server over http (XML), which in turn communicates with the sql publication over 1433 through the firewall. However if the client requires an update of the snapshot it would require an ftp connection directly onto the LAN FTP server. Allowing ftp directly onto the LAN is not normally recommended. Is this the only way it can be achieved or have i misunderstood your solution? thanks again, Matt. [quoted text, click to view] Hilary Cotter wrote:
> Deploy your snapshot via an ftp server. The ports for this should be open > between your SQL Server and IIS server. The ftp server could exist on your > lan. > > -- > Hilary Cotter > Director of Text Mining and Database Strategy > RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. > > This posting is my own and doesn't necessarily represent RelevantNoise's > positions, strategies or opinions. > > Looking for a SQL Server replication book? > http://www.nwsu.com/0974973602.html > > Looking for a FAQ on Indexing Services/SQL FTS > http://www.indexserverfaq.com > > > > <matt@slimming-world.co.uk> wrote in message > news:1157625557.081122.269590@i3g2000cwc.googlegroups.com... > > Hi, > > > > We are trying to implement merge replication from pdas to a sql 2005 > > server. > > > > The basic setup can be seen here > > > > http://i93.photobucket.com/albums/l56/matt_woodcock/pda_connection.jpg > > > > The problem we have is the IIS server requires access to the sql > > snaphot via a UNC connection. > > > > The webserer is in the dmz and the sql server is on the lan, so a unc > > connection is not possible without opening more ports (curently only > > 1433 is open). > > > > Is there any way around this problem? > > > > Thanks. > >
I see, thanks for your help.
Matt. [quoted text, click to view] Hilary Cotter wrote:
> That was what I was suggesting. But it should be possible with the ftp > server in the DMZ. In most environments the DMZ has ports open from the LAN > to the DMZ for inbound communication, but not the other way. > > So you should be able to do a file copy to the ftp server in the DMZ. > -- > Hilary Cotter > Director of Text Mining and Database Strategy > RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. > > This posting is my own and doesn't necessarily represent RelevantNoise's > positions, strategies or opinions. > > Looking for a SQL Server replication book? > http://www.nwsu.com/0974973602.html > > Looking for a FAQ on Indexing Services/SQL FTS > http://www.indexserverfaq.com > > > > "Matt" <matt@slimming-world.co.uk> wrote in message > news:1157726536.158050.127210@i3g2000cwc.googlegroups.com... > > thanks for reply. > > > > As i understand the sql server needs to acess the ftp server via a UNC > > to place the snapshot files on it ( i.e. > > \\ftpserver\files\snapshotfiles). To do this the ftp server and sql > > server would need to be on the LAN (no firewall between them). > > > > In this situation the client would submit its changes and receive > > updates by connecting to the IIS server over http (XML), which in turn > > communicates with the sql publication over 1433 through the firewall. > > > > However if the client requires an update of the snapshot it would > > require an ftp connection directly onto the LAN FTP server. > > > > Allowing ftp directly onto the LAN is not normally recommended. Is this > > the only way it can be achieved or have i misunderstood your solution? > > > > thanks again, > > > > Matt. > > > > > > Hilary Cotter wrote: > >> Deploy your snapshot via an ftp server. The ports for this should be open > >> between your SQL Server and IIS server. The ftp server could exist on > >> your > >> lan. > >> > >> -- > >> Hilary Cotter > >> Director of Text Mining and Database Strategy > >> RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. > >> > >> This posting is my own and doesn't necessarily represent RelevantNoise's > >> positions, strategies or opinions. > >> > >> Looking for a SQL Server replication book? > >> http://www.nwsu.com/0974973602.html > >> > >> Looking for a FAQ on Indexing Services/SQL FTS > >> http://www.indexserverfaq.com > >> > >> > >> > >> <matt@slimming-world.co.uk> wrote in message > >> news:1157625557.081122.269590@i3g2000cwc.googlegroups.com... > >> > Hi, > >> > > >> > We are trying to implement merge replication from pdas to a sql 2005 > >> > server. > >> > > >> > The basic setup can be seen here > >> > > >> > http://i93.photobucket.com/albums/l56/matt_woodcock/pda_connection.jpg > >> > > >> > The problem we have is the IIS server requires access to the sql > >> > snaphot via a UNC connection. > >> > > >> > The webserer is in the dmz and the sql server is on the lan, so a unc > >> > connection is not possible without opening more ports (curently only > >> > 1433 is open). > >> > > >> > Is there any way around this problem? > >> > > >> > Thanks. > >> > > >
That was what I was suggesting. But it should be possible with the ftp
server in the DMZ. In most environments the DMZ has ports open from the LAN to the DMZ for inbound communication, but not the other way. So you should be able to do a file copy to the ftp server in the DMZ. -- Hilary Cotter Director of Text Mining and Database Strategy RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. This posting is my own and doesn't necessarily represent RelevantNoise's positions, strategies or opinions. Looking for a SQL Server replication book? http://www.nwsu.com/0974973602.html Looking for a FAQ on Indexing Services/SQL FTS http://www.indexserverfaq.com [quoted text, click to view] "Matt" <matt@slimming-world.co.uk> wrote in message news:1157726536.158050.127210@i3g2000cwc.googlegroups.com... > thanks for reply. > > As i understand the sql server needs to acess the ftp server via a UNC > to place the snapshot files on it ( i.e. > \\ftpserver\files\snapshotfiles). To do this the ftp server and sql > server would need to be on the LAN (no firewall between them). > > In this situation the client would submit its changes and receive > updates by connecting to the IIS server over http (XML), which in turn > communicates with the sql publication over 1433 through the firewall. > > However if the client requires an update of the snapshot it would > require an ftp connection directly onto the LAN FTP server. > > Allowing ftp directly onto the LAN is not normally recommended. Is this > the only way it can be achieved or have i misunderstood your solution? > > thanks again, > > Matt. > > > Hilary Cotter wrote: >> Deploy your snapshot via an ftp server. The ports for this should be open >> between your SQL Server and IIS server. The ftp server could exist on >> your >> lan. >> >> -- >> Hilary Cotter >> Director of Text Mining and Database Strategy >> RelevantNOISE.Com - Dedicated to mining blogs for business intelligence. >> >> This posting is my own and doesn't necessarily represent RelevantNoise's >> positions, strategies or opinions. >> >> Looking for a SQL Server replication book? >> http://www.nwsu.com/0974973602.html >> >> Looking for a FAQ on Indexing Services/SQL FTS >> http://www.indexserverfaq.com >> >> >> >> <matt@slimming-world.co.uk> wrote in message >> news:1157625557.081122.269590@i3g2000cwc.googlegroups.com... >> > Hi, >> > >> > We are trying to implement merge replication from pdas to a sql 2005 >> > server. >> > >> > The basic setup can be seen here >> > >> > http://i93.photobucket.com/albums/l56/matt_woodcock/pda_connection.jpg >> > >> > The problem we have is the IIS server requires access to the sql >> > snaphot via a UNC connection. >> > >> > The webserer is in the dmz and the sql server is on the lan, so a unc >> > connection is not possible without opening more ports (curently only >> > 1433 is open). >> > >> > Is there any way around this problem? >> > >> > Thanks. >> > >
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