I am trying to establish an nfs connection through an openvpn tunnel.
It really anoying and i dont know what to try next. The connectein test has
been made on several platforms now. used debian/centos/openwrt.
Changed server<>client
A "direct" nfs connection alway works instant by doing: (DEMO IP HERE)
mount -t nfs 192.168.2.1:/extroot test
but an:
mount -t nfs 10.0.0.1:/extroot test
always fails with: (takes forever to timeout)
mount.nfs: Connection timed out
Also i did that on a remote vps and the connection is established instant.
The openvpn tunnel seems fine. Ping ok iperf greather 100mbits soo …..
My configs atached, any help is verry welcome!
NFS:
/etc/exports: ( '*' is just for debugging here )
/extroot *(rw,all_squash,insecure,async,no_subtree_check)
/etc/hosts.allow
portmap: ALL
openvpn:
server.conf:
port 6565
proto udp
dev tun
ca /etc/openvpn/keys/ca.crt
cert /etc/openvpn/keys/server.crt
key /etc/openvpn/keys/server.key
dh /etc/openvpn/keys/dh2048.pem
server 10.0.0.0 255.255.255.0
ifconfig-pool-persist /etc/openvpn/ipp.txt
keepalive 5 30
verb 3
client.conf:
client
tls-client
dev tun
proto udp
remote hostname.of.server portnum
resolv-retry infinite
nobind
pkcs12 /etc/openvpn/nfs.p12
verb 3
remote-cert-tls server
tcpdump from nfs server while trying to connect:
http://pastebin.com/2PJ2w7vB
i know its hard ti read, sorry.
Best Answer
Ok i got it. @Zoredache pointed me into the right direction. Thank you my friend :) !! Its indeed the case that mount.nfs is trying to point to localhost instead of the vpn ip. You can solve this by using the following mountopts.
Debug Output of mount.nfs
If You want to solve this inside initramfs, you need to add /sbin/mount.nfs to your initramfs. The generic command mounting nfs during boot for nfsroot will fail otherwise.