From Windows10, I can putty to the distro fine. No problem.

putty -ssh -l root -pw root 192.168.82.102

It opens putty console and a prompt.

But when i try plink:

plink -ssh -l root -pw root 192.168.82.102

it says:

FATAL ERROR: Network error: Connection refused

Whats going on?

Question from @Martin Prikryl:

Are executing both command form the same machine, the same account, the same console window?

YES.

Don't you have a per-application firewall rule for PuTTY?

NO.

With -v option (using plink)

Connecting to fe80::940d:a086:5ed:328d%4 port 22
We claim version: SSH-2.0-PuTTY_Release_0.70
Failed to connect to fe80::940d:a086:5ed:328d%4: Network error: Connection refused
Connecting to 192.168.82.129 port 22
Failed to connect to 192.168.82.129: Network error: Connection refused
Network error: Connection refused
FATAL ERROR: Network error: Connection refused

Event Log (using putty)

2018-11-09 15:51:19 Connecting to 192.168.82.102 port 22
2018-11-09 15:51:19 We claim version: SSH-2.0-PuTTY_Release_0.70
2018-11-09 15:51:20 Server version: SSH-2.0-OpenSSH_6.7
2018-11-09 15:51:20 Using SSH protocol version 2
2018-11-09 15:51:20 Doing ECDH key exchange with curve Curve25519 and hash SHA-256
2018-11-09 15:51:20 Server also has ssh-ed25519/ecdsa-sha2-nistp256/ssh-dss host keys, but we don't know any of them
2018-11-09 15:51:20 Host key fingerprint is:
2018-11-09 15:51:20 ssh-rsa 2048 18:e3:1f:bd:d8:22:b3:22:c9:bc:a0:b7:72:8d:e0:02
2018-11-09 15:51:20 Initialised AES-256 SDCTR client->server encryption
2018-11-09 15:51:20 Initialised HMAC-SHA-256 client->server MAC algorithm
2018-11-09 15:51:20 Initialised AES-256 SDCTR server->client encryption
2018-11-09 15:51:20 Initialised HMAC-SHA-256 server->client MAC algorithm
2018-11-09 15:51:20 Attempting keyboard-interactive authentication
2018-11-09 15:51:21 Access granted
2018-11-09 15:51:21 Opening session as main channel
2018-11-09 15:51:21 Opened main channel
2018-11-09 15:51:21 Allocated pty (ospeed 38400bps, ispeed 38400bps)
2018-11-09 15:51:21 Started a shell/command
  • Show us a contents of PuTTY event log and output of plink with -v switch. – Martin Prikryl Nov 9 at 6:46
  • What about PuTTY event log? – Martin Prikryl Nov 9 at 7:40
  • @MartinPrikryl added – GeneCode Nov 9 at 7:53
  • Neither of the logs show a connection to 192.168.82.1. – Martin Prikryl Nov 9 at 7:55
  • yeah. i just changed the IP to another machine. Edited teh question. – GeneCode Nov 9 at 10:17

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