I checked the Firewall on F28 and it is checked marked.
I'm trying to SSH to 192.168.0.102 which is a Raspberry Pi 3+.
I have enabled the SSH Server in Rasp-Pi.
I did change my Password in Rasp-Pi.

I get a error message at Fedora-28 PC saying "Permission denied, please try again."

From what I can tell that SSH is enabled at both ends.

From Rasp Pi to SSH 192.168.0.101/PC , I get a "connect to host 192.168.0.101 port 22: Connection refused"

I also did a systemctl start sshd.service on Fedora-28 PC.

What gives ? Like what is going on ?

A few thoughts:

Did you try ssh -vvv? These options will help us confirm that it’s a password check that leads to the error message.
Are you sure you log on with the correct username?
Can you log on directly at the R-Pi using the same username and password?

I think you either mistyped the password, or logged on to the R-Pi as a different user, or the password change was not successful.

When trying to connect from the Fedora-28 machine to the Raspberry Pi, are you using the right account?

When connecting from the Raspberry Pi to the Fedora-28 machine, have you opened port 22 in the firewall on the Fedora-28 machine?

Or SSH is configured to want key files instead of password...that's the issue I usually have is having configured ssh to require keys.

ssh -l pi 192.168.0.102

Did the TRICK, what does the -l do ?

I'm connected to Pi SSH now, Thanks much

From the manpage:

1 members found this post helpful.

I forgot to add the Rasp-Pi is going to be installed up on a 40ft Antenna pole, the Pi is getting it's power from a 100ft Cat6 ethernet cable, POE.
So I have to talk to the Pi 40ft up from a Fedora-28 PC terminal.

The IOT (internet of Things)

Unsolved:

on a different Computer:

ssh -vvv 192.168.0.102

Error message;

Athentications that can contiune: public,gssapi=keyex,,gssapi-with-mickey,password

Permission denied,please try again pi@192,168.0.102's password:

The password I'm typing in is correct and in lower case.

What's up ?

running ssh -vvv, it runs until it gets to connect 192.168.10.10 and it Hangs up there and then Times Out.

[root@mickey mickey]# ssh -vvv 192.168.10.10
OpenSSH_7.8p1, OpenSSL 1.1.0i-fips 14 Aug 2018
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 52: Including file /etc/ssh/ssh_config.d/05-redhat.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 2: Including file /etc/crypto-policies/back-ends/openssh.config depth 1
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug3: gss kex names ok: [gss-gex-sha1-,gss-group14-sha1-]
debug3: kex names ok: [curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1]
debug1: /etc/ssh/ssh_config.d/05-redhat.conf line 8: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.10.10 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.10.10 [192.168.10.10] port 22.

At this point ssh just hangs and Timesout.

Is your Pi configured with a static IP or using a DHCP address reservation?

Did you change subnets or a typo??

From #5 which worked.
ssh -l pi 192.168.0.102

Curious as to the purpose of your Pi on a 40 foot antenna pole.

Fedora 28 is 192.169.0.1
Pi is 192.169.10.10

both are using dhcp from a Router, I do ifconfig to check Fedora's IP, the Pi is setup to run on 192.168.10.10 only

From Pi to Fedora ssh 102.168.0.1 I get a ssh connection
I Exit from the Pi.
From Fedor28 to Pi I cannot get a connection, the results are in my previous post.

Up the 40" pole a Rak-Gateway (or LoRa gateway will connect to other gateway's),
The World !! , Have you heard of the term IOT (Internet of Things)
Which will connect finally to https://www.thethingsnetwork.org/

Fedora-28 PC Terminal will help me to Edit and Setup the Pi and RAK-Gateway module in a water proof box, to a diapole antenna which is 6' tall, The Pole is 40',You have to have the Antenna high to get over trees and houses,line of sight to another gateway in your local area, the Pi and Gateway Module board is powered by POE (Power over Ethernet),The Pi will also communicate with the TheThingsNetwork through Ethernet.
Here is Swiss guy(Guy with a Swiss Accent, he speaks very good English) that built a gateway.https://www.youtube.com/watch?v=wnHwWGqUUyc&t=519s ,The gateway Modules work on different Freq. Europe 868mhz USA 915mhz other countries have there own Freq.

Different subnets. How is the network configured between the two computers?

Michaelk would you please define what a subnet is and how I can fix it . I use a Router between the two computers.

Pi can ssh to Fedora no problem, would that not solve the subnet problem ?

Thanks much for your help.

How is everything wired? Which device is connected to the LAN and which to the WAN side.

The typical home router uses NAT so if Fedora is on the WAN side you need to forward ssh traffic in the router to the Pi.

Lan is:
fedora 192.168.0.102
Pi 192.168.10.10