resolving issues

Issues related to configuring your network
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wp.rauchholz
Posts: 119
Joined: 2016/11/20 11:58:45

resolving issues

Post by wp.rauchholz » 2020/05/28 17:18:46

I have the following setup:

Modem/Router that is set in bridge mode
Homer server that is modem/router/firewall, etc. with IP AA.AA.AA.A
I added a router to he LAN to create a new subnetwork. The Router’s IP is AA.AA.xx.xx and the subnetwork BB.BB.BB.B
From the BB.BB.BB.B subnetwork I cannot access my webpage anymore. For some reason it does not resolve.
e.g. ssh <user>@<domain> does not resolve, ssh <user>@<domain> AA.AA.AA.A does resolve

Can I fix this with settings in etc/hosts and if so, how?

Thanks,

Wolfgang

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jlehtone
Posts: 2878
Joined: 2007/12/11 08:17:33
Location: Finland

Re: resolving issues

Post by jlehtone » 2020/05/28 18:25:13

Confusing. You have:
* "Modem/Router" (which is not a router)
* "modem/router/firewall"
* added "router"

You say that
ssh <user>@<domain> does not resolve, but
ssh <user>@<domain> AA.AA.AA.A does (which looks like type/syntax error to me)

Router routes. That means that it is member of at least two subnets and has an address in each subnet.

It seems that there are at least two subnets:
* ISP's WAN and address "AA.AA.AA.A" is a member of WAN
* A LAN "BB.BB.BB.B/C"

Where are all your routers in this?

You imply that hostname <domain> should resolve to address AA.AA.AA.A. If the address is public, does public DNS resolve that name?

wp.rauchholz
Posts: 119
Joined: 2016/11/20 11:58:45

Re: resolving issues

Post by wp.rauchholz » 2020/05/29 15:34:13

Confusing. You have:
* "Modem/Router" (which is not a router) Correct. It is in bridge mode and the pasarela to the telecom company
* "modem/router/firewall". Home server who acts as modem/router/firewall; IP: 10.5.2.1
* added "router".: A device (maybe better called access point?) that creates an additional subnet on my LAN.
The server subnet is 10.5.2.
The access points subnet is 192.168.148.

ssh <user>@wo-lar.com does not resolve from the subnet 192.168.148
ssh <user>@10.5.2.1 does relove and I can access my server

When on 192.168... LAN, I cannot access my webpage from Chrome in wo-lar.com.


Wolfgang

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