Virtualbox. I cant get host and guests configured

[alemire]

Hello,

I looked through the forums, cant quite find what im looking for there. I need some assistance with my Host network configuration and the Guest VMs.
I have the host installed on Mint 18 Sarah Cinnimon 64bit. Guests are Debian8 Jessi(Server), Ubuntu16.04 Xerial(Server), Kali&metasploit. Everything works except networking. All the guests have Internet access, can ping each other, however I cannot SSH into the Debian8 Server from host except using bridged networking. Also theres no GUI on the Debian or Ubuntu. Im basically trying to create a Server/Lab & Pentest/Lab. Ive looked at quite a few online toturials with videos that explain these networking setups, but I just dont get it that good in linux yet. Havent done serious networking in a decade and that was all on Microsoft systems not Linux/Unix systems.

If i get the Debian server going I should be all set to figure out the rest. So far the only way I can SSH into the Debian is through Bridged Network. But Im almost positive I need to use NAT Network, Also on my Host network, what Is a universal way to configure it with pre-written scripts? Or do I need to setup a static Host network, Configure the router and DHCP all the VMs? Use a VLAN for Kali at first Im guessing too. Like i said I really need some help deciding the best course of action here. I dont want to run some Kali tools and accidently whipe out my Main Host Pc.

I'm useing VB 5.1.8 and it has full extentions added to ALL containers, USB3.0 works etc.... Debian8 Jessi Server with openSSH and basic system settings no major server apps like php/mysql email, none of that yet!

/etc/network/interfaces contents from Debian8

Code: Select all

ldeb1@debian1:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

One part I struggle with is what to edit? I know how to use Nano fine and VIM sort of. I just dont understand what actually needs to be edited in the interfaces file because theres no network address or mask or broadcast.

Network:

Code: Select all

ldeb1@debian1:~$ ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:80:86:0b brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.5/24 brd 192.168.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::a00:27ff:fe80:860b/64 scope link 
       valid_lft forever preferred_lft forever

Thats for Bridged? I had to use this format to copy and paste through SSH, its not the Ideal way to have it I think? Now if anymore info is needed about the VMs or networks let me know?


this is my Hosts network setup, do I need to make any major changes?

Code: Select all

@3lackho1e ~ $ ifconfig
\bridge0   Link encap:Ethernet  HWaddr 4c:cc:6a:0f:ba:db  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::c5db:5a07:3742:5d9d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4860423 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2816925 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:9944385072 (9.9 GB)  TX bytes:207229406 (207.2 MB)

enp7s0    Link encap:Ethernet  HWaddr 4c:cc:6a:0f:ba:db  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7023128 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2816925 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:10155106130 (10.1 GB)  TX bytes:207229406 (207.2 MB)

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:65536  Metric:1
          RX packets:786628 errors:0 dropped:0 overruns:0 frame:0
          TX packets:786628 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:61273880 (61.2 MB)  TX bytes:61273880 (61.2 MB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  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:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Thank you for reading this, I know its long. And thanks also for your help up front!!
I would like to use the Debian8/ubuntu16.4/CentOS7 to mainly learn LAMP mySQL PhP and other normal server applications which I will clone the VMs and add to the Kali/Metasploit LAB where I can learn PenTesting. I need Servers that function, and servers I can destroy and learn from.

[Cosmo.]

From where shall the virtual servers get reached? Only from the host?
In this case activate in the settings for the VM 2 network adapter: #1 = NAT (for Internet access), #2 = host only adapter.