Bagaimana saya bisa meneruskan port pada server yang menjalankan libvirt / KVM ke port yang ditentukan pada VM, ketika menggunakan NAT?
Misalnya, tuan rumah memiliki IP publik 1.2.3.4. Saya ingin meneruskan port 80 ke 10.0.0.1 dan port 22 ke 10.0.0.2.
Saya berasumsi saya perlu menambahkan aturan iptables, tapi saya tidak yakin di mana yang sesuai dan apa yang harus ditentukan.
Output dari iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere 10.0.0.0/24 state RELATED,ESTABLISHED
ACCEPT all -- 10.0.0.0/24 anywhere
ACCEPT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Output dari ifconfig
eth0 Link encap:Ethernet HWaddr 00:1b:fc:46:73:b9
inet addr:192.168.1.14 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:fcff:fe46:73b9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:201 errors:0 dropped:0 overruns:0 frame:0
TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:31161 (31.1 KB) TX bytes:12090 (12.0 KB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
virbr1 Link encap:Ethernet HWaddr ca:70:d1:77:b2:48
inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::c870:d1ff:fe77:b248/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:468 (468.0 B)
Saya menggunakan Ubuntu 10,04.