Need help to launch ssh on remote host after reboot

[ouray3]

@dcurtisfra

 > systemctl list-unit-files | grep -i 'ssh'
sshd.service                                                     enabled        
 > 

 # systemctl status sshd.service 
● sshd.service - OpenSSH Daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2020-04-27 08:05:08 CEST; 3h 17min ago
  Process: 2172 ExecStartPre=/usr/sbin/sshd -t $SSHD_OPTS (code=exited, status=0/SUCCESS)
  Process: 2151 ExecStartPre=/usr/sbin/sshd-gen-keys-start (code=exited, status=0/SUCCESS)
 Main PID: 2180 (sshd)
    Tasks: 1
   CGroup: /system.slice/sshd.service
           └─2180 /usr/sbin/sshd -D

Apr 27 08:05:08 xxx systemd[1]: Starting OpenSSH Daemon...
Apr 27 08:05:08 xxx sshd-gen-keys-start[2151]: Checking for missing server keys in /etc/ssh
Apr 27 08:05:08 xxx sshd[2180]: Server listening on 0.0.0.0 port 22.
Apr 27 08:05:08 xxx sshd[2180]: Server listening on :: port 22.
Apr 27 08:05:08 xxx systemd[1]: Started OpenSSH Daemon.
 # 

Have you, on the remote system, enabled the SSH Daemon systemd service?

Yes dcurtisfra,
With % systemctl list-unit-files | grep -i ‘ssh’ I see (on remote host):

sshd.service enabled

But still no ssh connection on local host to remote host on reboot of remote host.

[ouray3]

@OrsoBruno

If you are using NetworkManager you can do a quick check about the connection details. For instance by issuing (as superuser):

# nmcli connection show <your connection ID>

the result should read as:

connection.id:                          <your connection ID>
<snip>
**connection.autoconnect:                 yes**
<snip>
**connection.permissions:                 --**
<snip>

or edit the connection with the GUI editor in your desktop or with:

# nmtui

so that “Automatically connect” and “Available to all users” are both checked.
If that works, you may choose to stay like that or switch to wicked as you prefer.

Hi OrsoBruno, I applied your tweak using nmtui to match your output, but still no ssh connection to remote host after reboot?
And on another post I verified sshd.service enabled

[malcolmlewis]

Hi
On the remote host Leap 15.1, during install did you allow ssh port to be open in the final screen before install? If not then go into YaST firewall and open up the ssh port.

[ouray3]

I finally have some good news. I was able to successfully ssh into the remote box after it was re-booted.
After someone posted about being hooked up directly to the router I decided to try that with a reboot.
Before, the 2 boxes were next to each other both using USB Wifi adapters. I’m not sure if that was the root
of the problem or a few settings that were suggested. Of course I had to find the new IP address, that’s easy.
Big thanks to all of you who took the time to help me out. I learned a lot of new network tools.

[dcurtisfra]

@ouray3

Of course I had to find the new IP address, that’s easy.

Huh? – The machines don’t have names and, the DHCP server – presumably the Router – doesn’t know the names?

• And, the routers are normally the Name Servers, these days, mostly, usually, everywhere on this planet …

[kaidoandusoop]

@dcurtisfra

 > systemctl list-unit-files | grep -i 'ssh'
sshd.service                                                     enabled        
 > 

 # systemctl status sshd.service 
● sshd.service - OpenSSH Daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2020-04-27 08:05:08 CEST; 3h 17min ago
  Process: 2172 ExecStartPre=/usr/sbin/sshd -t $SSHD_OPTS (code=exited, status=0/SUCCESS)
  Process: 2151 ExecStartPre=/usr/sbin/sshd-gen-keys-start (code=exited, status=0/SUCCESS)
 Main PID: 2180 (sshd)
    Tasks: 1
   CGroup: /system.slice/sshd.service
           └─2180 /usr/sbin/sshd -D

Apr 27 08:05:08 xxx systemd[1]: Starting OpenSSH Daemon...
Apr 27 08:05:08 xxx sshd-gen-keys-start[2151]: Checking for missing server keys in /etc/ssh
Apr 27 08:05:08 xxx sshd[2180]: Server listening on 0.0.0.0 port 22.
Apr 27 08:05:08 xxx sshd[2180]: Server listening on :: port 22.
Apr 27 08:05:08 xxx systemd[1]: Started OpenSSH Daemon.
 # 

Have you, on the remote system, enabled the SSH Daemon systemd service?

Thanks for the help mate