On 9/14/19 9:34 PM, Patrick Dupre wrote: > Hello, > > ssh does not respond (time out, the machine is OK). Hence, I restarted it and > > systemctl status sshd > ● sshd.service - OpenSSH server daemon > Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset> > Active: active (running) since Sat 2019-09-14 15:26:06 CEST; 32s ago > Docs: man:sshd(8) > man:sshd_config(5) > Main PID: 29012 (sshd) > Tasks: 1 (limit: 4915) > Memory: 1.0M > CGroup: /system.slice/sshd.service > └─29012 /usr/sbin/sshd -D -oCiphers=aes256-gcm(a)openssh.com,chacha20-> > > Sep 14 15:26:06 Teucidide systemd[1]: Starting OpenSSH server daemon... > Sep 14 15:26:06 Teucidide sshd[29012]: Server listening on 0.0.0.0 port 22. > Sep 14 15:26:06 Teucidide sshd[29012]: Server listening on :: port 22. > Sep 14 15:26:06 Teucidide systemd[1]: Started OpenSSH server daemon. > > > But it is not enough. > What else should I do? I assume you mean that when you attempt to ssh to the machine from a remote system it times out? First Q is, did you make sure port 22 is opened on the server?

From the remote system, what do you get when you try to "telnet" to port 22?

On 9/14/19 9:59 PM, Patrick Dupre wrote: >> On 9/14/19 9:34 PM, Patrick Dupre wrote: >>> Hello, >>> >>> ssh does not respond (time out, the machine is OK). Hence, I restarted it and >>> >>> systemctl status sshd >>> ● sshd.service - OpenSSH server daemon >>> Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset> >>> Active: active (running) since Sat 2019-09-14 15:26:06 CEST; 32s ago >>> Docs: man:sshd(8) >>> man:sshd_config(5) >>> Main PID: 29012 (sshd) >>> Tasks: 1 (limit: 4915) >>> Memory: 1.0M >>> CGroup: /system.slice/sshd.service >>> └─29012 /usr/sbin/sshd -D -oCiphers=aes256-gcm(a)openssh.com,chacha20-> >>> >>> Sep 14 15:26:06 Teucidide systemd[1]: Starting OpenSSH server daemon... >>> Sep 14 15:26:06 Teucidide sshd[29012]: Server listening on 0.0.0.0 port 22. >>> Sep 14 15:26:06 Teucidide sshd[29012]: Server listening on :: port 22. >>> Sep 14 15:26:06 Teucidide systemd[1]: Started OpenSSH server daemon. >>> >>> >>> But it is not enough. >>> What else should I do? >> I assume you mean that when you attempt to ssh to the machine from a remote system it times out? >> >> First Q is, did you make sure port 22 is opened on the server? > I guess, from the machine itself (192.168.1.12), the ssh works OK That doesn't tell you anything.  The firewall doesn't block connections on the server to the server. >> From the remote system, what do you get when you try to "telnet" to port 22? >> > telnet 192.168.1.12 > Trying 192.168.1.12... > telnet: connect to address 192.168.1.12: No route to host > > I guess that I need to reestablish the route. > How? > No, that is an indication that port 22 is not open. On the server you should see ssh included like so in this command [root@f31bk ~]# firewall-cmd --permanent --list-services dhcpv6-client mdns ssh If not listed, you can then do firewall-cmd --permanent --add-service=ssh

On Saturday, September 14, 2019 10:13:11 AM EDT Ed Greshko wrote: > On 9/14/19 9:59 PM, Patrick Dupre wrote: > >> On 9/14/19 9:34 PM, Patrick Dupre wrote: > > telnet 192.168.1.12 > > Trying 192.168.1.12... > > telnet: connect to address 192.168.1.12: No route to host > > > > I guess that I need to reestablish the route. > > How? > > > > No, that is an indication that port 22 is not open. No. That error is from an ICMP message and means exactly what it says. It has nothing to do with what is or is not listening on the remote host since the attempt to connect to 192.168.1.12 never got that far. You do not have a route to 192.168.1.12 from the host that you used to run the telnet command. -- Garry T. Williams _______________________________________________ users mailing list -- users(a)lists.fedoraproject.org To unsubscribe send an email to users-leave(a)lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org