how to access from outside (my host ) with putty to internal VM ubuntu server of fortigate VM

[Firasbg]

how to access from outside (my host ) with putty to internal VM ubuntu server of fortigate VM 7.2.0?

my ubuntu server is inside the fortigate and i want to access it from outside(my host) with putty

[larsbollas · Accepted solution]

Hi Firasbg,

Traffic flow is like:

<Host>-><internet>-><Fortigate>-><internal VM>

Try to configure VIP in the fortigate to forward SSH traffic from outside to internal VM.

KB:
https://community.fortinet.com/t5/FortiGate/Technical-Tip-Virtual-IP-VIP-port-forwarding-configurati...

[Firasbg]

thanks @larsbollas  for the response , i follow the steps of the KB but it's not working i can ping with my server to outside but the inverse with ssh(putty) not working .

I configured the interface of the server with LAN segment and the @of my server is 192.168.37.2 i try from putty but don't working i do VIP ...

[larsbollas]

Hi Firasbg,

Can you verify if SSH is open in your server. 
From the Fortigate CLI:
# exe telnet 192.168.37.2 22

[Firasbg]

i do and this the result : 

FortiGate-VM64 # exe telnet 192.168.37.2 22
Trying 192.168.37.2...
Connected to 192.168.37.2.
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

and when i click enter they appeared to me this new two lines :

FortiGate-VM64 # exe telnet 192.168.37.2 22
Trying 192.168.37.2...
Connected to 192.168.37.2.
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
(Invalid SSH identification string.
Connection closed by foreign host.)

this reply of my cmd means that the ssh port is open in my server ?

[Firasbg]

Oh thanks @larsbollas  it solved i can access to the inside server with SSH from the WAN(outside) interface of fortigate