glow.li: 2015

disk0s2 i/o error on Christmas Eve.

Thu, 24 Dec 2015 18:47:22 +0000

disk0s2 i/o error on Christmas Eve.

Run an SSH server on your Android with Termux

Fri, 06 Nov 2015 17:48:05 +0000

With the brilliant Termux terminal emulator app you can run an SSH server on your Android.

Previously I used SSHDroid (which is no longer available) to achieve this, but with Termux is much nicer because you have access to a working package manager.

Run the service

You need to install the OpenSSH package

    apt install openssh

and use following command to start the ssh server.

    sshd

And there you go. Your ssh service is now running on port 8022.

    ssh localhost -p 8022

Adding your Public key

You can't do password authentication in Termux, therefore you need to put your OpenSSH public key into the ~/.ssh/authorized_keys file.

This file will need to be created and permissions set to 600.

    touch ~/.ssh/authorized_keys
    # Set Permissions to the file
    chmod 600 ~/.ssh/authorized_keys
    # Make sure the folder .ssh folder has the correct permissions
    chmod 700 ~/.ssh

If you do not have a OpenSSH key pair yet, you can generate one with the following command:

    ssh-keygen

You may or may not enter a passphrase and if you don't specify otherwise, your key pair will have been saved under ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub. You can then add it to the ~/.ssh/authorized_keys with

    cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    chmod 600 ~/.ssh/authorized_keys

Then you can test it by connecting to your ssh service

    # -i $PATH_TO_FILE/filename is only required if the id_rsa file is not ~/.ssh/id_rsa
    ssh localhost -p 8022 -i %PATH_TO_KEY-FILE%/%NAME_OF_KEY%

You can now use your private key (~/.ssh/id_rsa) to login to your Termux SSH Server. Simply copy it to your computer (by copying it to internal storage first cp ~/.ssh/id_rsa /sdcard) and use it in your ssh client.

OpenSSH

If you're using OpenSSH (on Linux or Cygwin) you can use it directly:

    # -i $PATH_TO_FILE/filename is only required if the id_rsa file is not ~/.ssh/id_rsa
    ssh $IP -p 8022 -i %PATH_TO_KEY-FILE%/%NAME_OF_KEY%

PuTTY

If you're using PuTTY you will need to convert it to the PuTTY Private Key format first.

Download and run PuTTYgen
Load the private key (id_rsa)
Save the private key as a *.ppk file.
Download and run PuTTY
Enter the IP address of your Android device and use port 8022
Under Connection>SSH>Auth you can browse for the *.pkk file
Click open
You can leave "login as:" blank

You should now be connected to your Android device via SSH.

If it still doesn't work

    killall sshd
    sshd -d

If it is still prompts you for a password you can enter sshd's debug mode with the above command and see exactly why your key has been rejected. The reason usually are bad permission on either your home directory, your .ssh folder or your authorized_keys file.

The correct permissions are:

    chmod 700 ~
    chmod 700 ~/.ssh
    chmod 600 ~/.ssh/*

I hope in the future Termux will allow us to register sshd as a proper service which would automatically start on system boot. Right now I have the 'sshd' command in my .bashrc file and I am using Tasker to launch Termux after boot. You can also use the Termux widget to quickly start sshd with a widget.

Display Swatch Internet Time (beats) in Zooper

Fri, 30 Oct 2015 18:17:50 +0000

Did you ever want Zooper to display Time in .beats? Probably not. Here's how anyway:

@$(floor(((#Dss#)+(#Dmm#*60)+((#DH#+1)*3600))/86.4))$

This does the math. Just add a Text or Rich Text module, "Edit text manually" and insert this.

You will have to also tap "Override widget Locality" add a location, enter any city and manually set the timezone to UTC. This is because it Swatch Internet Time doesn't have time zones but can be calculated from Biel Meantime (BMT). @0 is midnight in Biel, where the Swatch headquarters is located.

You can also download this as a template: Swatch Internet Time.zw

authorized_keys must be 600.

Tue, 20 Oct 2015 15:09:11 +0000

authorized_keys must be 600.

Super blood moon

Mon, 28 Sep 2015 05:52:25 +0000

The long awaited lunar eclipse finally happened. So I got up at 4:00 and went out and snapped some photos.

Saturdays test photos were useless. It took completely different settings to capture the eclipse.

The weather was perfect. The night was crystal clear so even if the annoying farmers and their stupid light machines were driving around the fields no light was back scattered by mist.

This was my second time trying to photograph a lunar eclipse. The first time was in 2011 when I just got the camera and was over lake Geneva.

Lunar eclipse over Lake Geneva

Full Moon

Mon, 28 Sep 2015 05:31:26 +0000

In preparation for Mondays lunar eclipse I went out on Saturday and did some photos of the full moon. Here's the best one.

The cat just ate a huge spider. I guess they just earned their share of cat food for the month.

Thu, 10 Sep 2015 18:00:57 +0000

The cat just ate a huge spider. I guess they just earned their share of cat food for the month.

Phuket

Sat, 25 Jul 2015 07:24:59 +0000