I was editing /etc/network/interfaces, and then decided to change my settings over VNC instead. This halted my SSH session and also my VNC. I'm not sure if this locked me out or not, but I set cron up to restore an old copy of /etc/network/interfaces later that night and was able to SSH into the machine. Now I find that all connections from that machine--from both Windows 7 and Ubuntu 14.04 can't reach the Mint Machine.
Here's output from ssh -vv.
debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22. debug1: Connection established. debug1: identity file /home/user/.ssh/id_rsa type -1 debug1: identity file /home/user/.ssh/id_rsa-cert type -1 debug1: identity file /home/user/.ssh/id_dsa type -1 debug1: identity file /home/user/.ssh/id_dsa-cert type -1 debug1: identity file /home/user/.ssh/id_ecdsa type -1 debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/user/.ssh/id_ed25519 type -1 debug1: identity file /home/user/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 ssh_exchange_identification: read: Connection reset by peer
This isn't just SSH, because Putty can't get in, VNC can't get in, Remmina can't get in, nor can SMB on either OS on the same PC.
All other devices on the network get SMB, VNC, and SSH without issue.
I have no recourse except to reinstall--which I'd much rather NOT do. This PC is my main workstation I work on. Any thoughts welcomed.