Last edited:
Hi!
Possible very basic question and I know how to do this on my Linux firewall and on Windows 10, too, however, not within DSM.
I've two DNS servers running in my LAN: the primary one is installed on my Synology NAS and is mainly responsible for the Windows clients that authenticate against a Synology Directory Server and a second DNS server running on my firewall. The Firewall is acting as a DHCP-server, too, and publishes the primary and secondary DNS-server to the clients.
I've added a new host entry on my firewall so I can reach an internal server with an external domain name and obviously w/o leaving the LAN. So I've added
If the name resolution works correctly and as expected, I noticed that ffsync.domain.de resolves into the local IP-address, e.g 192.168.5.100.
Unfortunately, this works only from time to time and I guess most of the time it does not work is due to the DNS resolution made from my Synology NAS.
Because at the time it does not run as expected, I get the external IP-Address of the domain name.
Background: I'm running a server on my LAN that can be reached by using an external domain name and a reverse proxy's port forwarding. For some reasons I do not want to the LAN clients to access this local server with an external name resolution.
So long story short: how can I add a similar host entry on my Synology for those clients that primarily use the Syno's DNS server?
FWIW: the NAS is not accessible from external but it can access the internet...
Thx,
Michael
Possible very basic question and I know how to do this on my Linux firewall and on Windows 10, too, however, not within DSM.
I've two DNS servers running in my LAN: the primary one is installed on my Synology NAS and is mainly responsible for the Windows clients that authenticate against a Synology Directory Server and a second DNS server running on my firewall. The Firewall is acting as a DHCP-server, too, and publishes the primary and secondary DNS-server to the clients.
I've added a new host entry on my firewall so I can reach an internal server with an external domain name and obviously w/o leaving the LAN. So I've added
ffsync.domain.de 192.168.5.100
to the host file.If the name resolution works correctly and as expected, I noticed that ffsync.domain.de resolves into the local IP-address, e.g 192.168.5.100.
Unfortunately, this works only from time to time and I guess most of the time it does not work is due to the DNS resolution made from my Synology NAS.
Because at the time it does not run as expected, I get the external IP-Address of the domain name.
Background: I'm running a server on my LAN that can be reached by using an external domain name and a reverse proxy's port forwarding. For some reasons I do not want to the LAN clients to access this local server with an external name resolution.
So long story short: how can I add a similar host entry on my Synology for those clients that primarily use the Syno's DNS server?
FWIW: the NAS is not accessible from external but it can access the internet...
Thx,
Michael