[strongSwan] (no subject)

[Dan Vee]

Hi,

I currently have strongSwan server setup on a VPS host, and I'm also
running an adblocking DNS server (not exposed to internet) on this same
host. The server only has one interface and it has a public IP address
(e.g. 1.2.3.4). I'd like to configure strongSwan to hand out a DNS address
(for this local DNS server) for any clients that connect. I have two
problems:
* I don't know how to make the DNS service running on the same VPS host
accessible to the connecting client. My client has a virtual IP (e.g.
10.20.30.1) and not sure how I can communicate directly with a service
running locally on this VPS host.
* I don't know what IP I should I pass back to the client for this DNS
address. I have no private IP address on this server. Should I return the
public IP address for the server?


Server config
------------------------------------
config setup
    uniqueids=never
    charondebug="cfg 2, dmn 2, ike 2, net 2"
conn %default
    keyexchange=ike
    dpdaction=clear
    dpddelay=300s
    rekey=no
    left=%any
    leftca=ca.cert.pem
    leftcert=server.cert.pem
    leftsubnet=0.0.0.0/0
    right=%any
    rightdns=????
    rightsourceip=10.20.30.0/24
    rightsubnets=192.168.3.0/24
conn IPSec-IKEv2
    keyexchange=ikev2
    ike=aes256-sha256-modp1024,3des-sha1-modp1024,aes256-sha1-modp1024!
    esp=aes256-sha256,3des-sha1,aes256-sha1!
    leftid="1.2.3.4"
    leftsendcert=always
    leftauth=pubkey
    rightauth=pubkey
    rightid="client at 1.2.3.4"
    rightcert=client.cert.pem
    auto=add

Any help would be greatly appreciated. Thanks!
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