Linux Mint 15 KDE - tweaks and fixes

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Additional fixes post installation

SSH connection refused

So today I tried ssh’ing into the desktop and no go. I was getting a connection refused and thought it had to do with either SSH not being installed or being blocked by the firewall. Later on when I checked, OpenSSH server was installed and the service was also running

sudo service status ssh
ssh start/running, process 2709

Hmm - this is weird. Next check was for iptables and that was clear too.. So last check was to look at /var/log/auth and indeed, there’s a problem. Interestingly machine keys weren’t generated during installation

Aug 22 20:15:58 desktop sshd[1960]: fatal: No supported key exchange algorithms [preauth]
Aug 22 20:16:49 desktop sshd[1990]: error: Could not load host key: /etc/ssh/ssh_host_rsa_key
Aug 22 20:16:49 desktop sshd[1990]: error: Could not load host key: /etc/ssh/ssh_host_dsa_key
Aug 22 20:16:49 desktop sshd[1990]: error: Could not load host key: /etc/ssh/ssh_host_ecdsa_key

Ok - so the fix is easy - generate the keys with

    sudo ssh-keygen -A

After that, everything’s back to normal :)

Power button shuts down computer

This is Kubuntu Bug 1124149. I’ll spare you the details, which you can read yourself. Fix needed is to link /usr/bin/qdbus

sudo ln -sf /usr/lib/x86_64-linux-gnu/qt4/bin/qdbus /usr/bin/qdbus