How to use Virtualbox NAT port forwarding and folder sharing

1. 如何透過 NAT 連線到 guest OS
如何使用分享資料夾
Ying-Shiuan Pan
Ying­Shiuan Pan

2. 如何透過 NAT 連線到 guest OS
 Where is the VM profile?
 open­ssh server
 What is NAT?
 Add port forwarding rule
 Try to connect to guest Os

疑難排解
 Reference
Ying­Shiuan Pan

3. Where is the VM profile?
 Windows XP
 C:Documents and
Settings???.VirtualBox
 Linux
 /home/???/.VirtualBox
 each VM's profile in
 .VirtualBox/Machines/VM_name
 VM_name.xml
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4. ssh server

安裝
 $ sudo apt-get install openssh-
server
 啟動 ssh server ( 也許需要 )
 $ sudo /etc/init.d/ssh restart

測試
 $ ssh localhost
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5. What is NAT?
鳥哥
http://linux.vbird.org/linux_server/0250simple_firewall.php
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6. Check your NIC type
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7. Plan your port forwarding rule
 What is the name of your guest OS?
 eg. Ubuntu 904
 Which port in host OS?
 eg. 32790
 Which port in guest OS?
 eg. 22
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8. add port forwarding rule
 Windows:
 開始 → 執行 → cmd
 cd "Program FilessunVirtualBox"
 Linux
 應用程式 → 附屬應用程式 → 終端機 (cht)
 Applications → Accessories → Terminal (eng)

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9. add port forwarding rule
 $ VBoxManage setextradata "VM_name"
"VBoxInternal/Devices/pcnet/0/LUN#0/Config/
guestssh/Protocol" TCP
 $ VBoxManage setextradata "VM_name"
"VBoxInternal/Devices/pcnet/0/LUN#0/Config/
guestssh/GuestPort" 22
 $ VBoxManage setextradata "VM_name"
"VBoxInternal/Devices/pcnet/0/LUN#0/Config/
guestssh/HostPort" 32790
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10. add port forwarding rule
 "VM_name"
 the name of the virtual machine
 pcnet
 the NIC type
 Intel PRO... (82540em) → e1000
 PCnet­FAST (Am79c973) → pcnet
 guestssh
 the name of the rule
 TCP, 22, 32790
 protocol, guest OS port, host OS port
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11. add port forwarding rule
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12. Try to connect to guest OS (1)
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13. Try to connect to guest OS (2)
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14. Ying­Shiuan Pan

15. 疑難排解
 從 guest OS 無法連到自己的 ssh
 確認 guest OS 的 ssh 是否打開
 從 guest OS 連線到自己試試看
 從 host 無法連線到 guest
 確認 port forwarding rule 是否正確
 查看該 VM 的 profile (.xml)
 檢查 guest OS 的防火牆是否被打開了

關掉他
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16. 疑難排解
 從其他電腦無法連線到 guest OS
 是否使用 IP 分享器
 外界電腦連入需要作 IP 分享器的 port forwarding
設定
 是否 host OS 的防火牆擋住了外面連線

視不同的防火牆作設定
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17. Reference
 http://log­keep.blogspot.com/2007/09/virtualbox­
nat­port­forwarding.html
 http://blog.yam.com/flyzc/article/15137400
 http://koukaipan.pixnet.net/blog/post/23993776
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18. 如何使用分享資料夾
 Install VirtualBox Guest Addiction first
 Plan your shared folder
 Add your shared folder
 Mount your shared folder
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19. Plan your shared folder
 Directory in host OS
 /data/vbox_shared (a)
 Directory in guest OS
 /mnt/vbox_shared (b)
 The name of the shred directory
 vbox_shared (c)
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20. Add your shared folder
(a)
(c)
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21. Mount the shared folder
 Create mount point
(b)
 $ sudo mkdir /mnt/vbox_shared
 Do mount
 $ sudo mount -t vboxsf (c)
vbox_shared /mnt/vbox_shared (b)
 test
 $ cd /mnt/vbox_shared (b)
 $ ls
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22. screenshot
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