Problem with host only network for ssh

[ichbinfranz]

Dear all,

I run virtualbox Version 5.2.26 r128414 (Qt5.6.3) on macOS 10.14.2.

I created a host only adapter

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$ ifconfig
vboxnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
	ether 0a:00:27:00:00:00
	inet 192.168.56.1 netmask 0xffffff00 broadcast 192.168.56.255

I can ping the address.

in the virtual machine I activated a host only adapter but it has no ip4-address?

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ifconfig:
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::a00:27ff:fead:1dad  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:ad:1d:ad  txqueuelen 1000  (Ethernet)
        RX packets 214  bytes 51846 (51.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 154  bytes 29033 (29.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

and openssh-server is running:

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$ sudo service ssh status
● ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
   Active: active (running) since Sat 2019-02-09 05:40:46 CET; 15h ago
  Process: 1786 ExecReload=/bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
  Process: 1780 ExecReload=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
  Process: 616 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
 Main PID: 623 (sshd)
    Tasks: 1 (limit: 4664)
   CGroup: /system.slice/ssh.service
           └─623 /usr/sbin/sshd -D

févr. 09 05:40:47 franz-VirtualBox systemd[1]: Reloading OpenBSD Secure Shell server.
févr. 09 05:40:47 franz-VirtualBox sshd[623]: Received SIGHUP; restarting.
févr. 09 05:40:47 franz-VirtualBox systemd[1]: Reloaded OpenBSD Secure Shell server.
févr. 09 05:40:47 franz-VirtualBox sshd[623]: Server listening on 0.0.0.0 port 22.
févr. 09 05:40:47 franz-VirtualBox sshd[623]: Server listening on :: port 22.
févr. 09 05:45:56 franz-VirtualBox systemd[1]: Reloading OpenBSD Secure Shell server.
févr. 09 05:45:56 franz-VirtualBox sshd[623]: Received SIGHUP; restarting.
févr. 09 05:45:56 franz-VirtualBox sshd[623]: Server listening on 0.0.0.0 port 22.
févr. 09 05:45:56 franz-VirtualBox sshd[623]: Server listening on :: port 22.
févr. 09 05:45:56 franz-VirtualBox systemd[1]: Reloaded OpenBSD Secure Shell server.

when i try to connect from the host:

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ssh 192.168.56.1 -vvv
OpenSSH_7.9p1, LibreSSL 2.7.3
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 48: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.56.1 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.56.1 [192.168.56.1] port 22.
debug1: connect to address 192.168.56.1 port 22: Connection refused
ssh: connect to host 192.168.56.1 port 22: Connection refused

In ubuntu I receive an error message concerning the network connector enp0s8 :connection failed activation of network connection failed

Thanks for your help in advance.

[socratis]

in the virtual machine I activated a host only adapter but it has no ip4-address?

That depends on how you've configured:

1. the HostOnly network and if you have the DHCP server enabled
2. the network in your guest and whether you have it DHCP enabled or with a static IP

when i try to connect from the host:

• ssh 192.168.56.1 -vvv

That's your HostOnly server IP. You're trying to connect to your own host, not to your VM. And why are you trying to ssh to your VM since it doesn't have an IP?

[ichbinfranz]

my bad,

I had to add to /etc/network/interfaces

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auto enp0s8
iface enp0s8 inet static
address 192.168.56.10
netmask 255.255.255.0

restart and connect to the right address

[socratis]

So, that means it's working now?