[Bug 297796] [NEW] vpnc issue with /etc/resolv.conf prevents connection

[Sam Freer]

Public bug reported:

Binary package hint: vpnc

vpnc 0.5.1r275-1ubunu1

This worked under Hardy but I can't get it working under Intrepid. The
VPN connects successfully using VPNC but then I can't ping anything on
the virtual network or connect using 'Terminal Services Client'.

I have a work around for the failure to connect using 'Terminal Services
Client' after establishing a VPN connection via VPNC in 8.10.

Have a look at /etc/resolv.conf

Mine looks like this. It holds the DNS servers lookups.

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.254
search home

After I connect to my VPN it looks like this.

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.254
nameserver 10.66.5.40
nameserver 172.26.128.23
search home central.luton

If I try to ping a server on the VPN I get the following error.

ping: unknown host jewel

I then edit the file to comment out the original DNS entry.

sudo vi /etc/resolv.conf

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
#nameserver 192.168.1.254
nameserver 10.66.5.40
nameserver 172.26.128.23
search home central.luton

I can now ping the server on the VPN.

PING jewel.central.luton (10.66.9.50) 56(84) bytes of data.

Now I can also get a 'Terminal Services Client' session to connect.

I don't know if this is a bug and needs fixing but this works for now.

http://ubuntuforums.org/showthread.php?t=974092

** Affects: vpnc (Ubuntu)
     Importance: Undecided
         Status: New

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vpnc issue with /etc/resolv.conf prevents connection
https://bugs.launchpad.net/bugs/297796
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