Connect through remote computer connection

Question

First, sorry for my English and my poor knowledge of this subject.

I have a dedicated server placed in Germany (windows 2008 R2) and I live in Spain. I would like to access internet from my home computer (Windows 7 Pro x64), through my server in Germany, so I can use a German IP, what I need some times.

I have complete access in to both computers, but I just don't know where to start. (My knowledge is limited to software development :/ )

I'd like to know where to start, if I need to create a VPN and so..

Thanks in advance!

Update 1

I tried a lot of options of OpenVPN, but I sadly I know nothing about networking, so I have to accept I do not know what I'm doing :(

Here are my config files (note most of the options are from the sample config files).

server.conf

#server config file start


port 1194
proto udp
dev tun
server 10.0.0.0 255.255.255.224   #you may choose any subnet. 10.0.0.x is used for this example.

ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" 
cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.crt" 
key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.key" 
dh "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\dh1024.pem" 

push "redirect-gateway def1"

push "dhcp-option DNS 8.8.8.8"

#the following commands are optional
keepalive 10 120         
comp-lzo                   
persist-key               
persist-tun               
verb 5                   


#config file ends

client.conf

#client  config file start

client
dev tun
proto udp
remote 176.9.99.180 1194   

resolv-retry infinite
nobind
persist-key
persist-tun

ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt"
cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.crt"
key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.key"
ns-cert-type server

comp-lzo
verb 5
explicit-exit-notify 2
ping 10
ping-restart 60

route-method exe
route-delay 2

# end of client config file

And here's the server's network settings:

IP address: 176.9.99.180 Subnet mask: 255.255.255.224 Default gateway: 176.9.99.161

Preferred DNS server: 127.0.0.1

Update 2

Here's the routing table:

===========================================================================
Interface List
 14...00 ff e4 70 31 16 ......TAP-Win32 Adapter V9
 11...54 04 a6 7e ee ae ......Realtek PCIe GBE Family Controller
  1...........................Software Loopback Interface 1
 10...00 00 00 00 00 00 00 e0 Microsoft Teredo Tunneling Adapter
 12...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0     176.9.99.161     176.9.99.180     11
         10.0.0.0  255.255.255.224         10.0.0.2         10.0.0.1     30
         10.0.0.0  255.255.255.252         On-link          10.0.0.1    286
         10.0.0.1  255.255.255.255         On-link          10.0.0.1    286
         10.0.0.3  255.255.255.255         On-link          10.0.0.1    286
        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
     176.9.99.160  255.255.255.224         On-link      176.9.99.180    266
     176.9.99.180  255.255.255.255         On-link      176.9.99.180    266
     176.9.99.191  255.255.255.255         On-link      176.9.99.180    266
        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link          10.0.0.1    286
        224.0.0.0        240.0.0.0         On-link      176.9.99.180    266
  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link          10.0.0.1    286
  255.255.255.255  255.255.255.255         On-link      176.9.99.180    266
===========================================================================
Persistent Routes:
  Network Address          Netmask  Gateway Address  Metric
          0.0.0.0          0.0.0.0     176.9.99.161       1
===========================================================================

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
 10     58 ::/0                     On-link
  1    306 ::1/128                  On-link
 10     58 2001::/32                On-link
 10    306 2001:0:5ef5:73b8:ce2:1218:4ff6:9c4b/128
                                    On-link
 14    286 fe80::/64                On-link
 11    266 fe80::/64                On-link
 10    306 fe80::/64                On-link
 10    306 fe80::ce2:1218:4ff6:9c4b/128
                                    On-link
 14    286 fe80::7c23:a:ec4e:2cfc/128
                                    On-link
 11    266 fe80::bd18:6249:9f7d:89a2/128
                                    On-link
  1    306 ff00::/8                 On-link
 10    306 ff00::/8                 On-link
 14    286 ff00::/8                 On-link
 11    266 ff00::/8                 On-link
===========================================================================
Persistent Routes:
  None

Answer 1

If you only need to use a German IP, you can install/configure a proxy on the server and access internet using this proxy on your home computer.

A VPN would do the job too but I think it's too much if you only need to access internet with a German IP.