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setting up Syncthing on Ubuntu – Part 1

October 10, 2018 / abhijit

Syncthing is an application to sync files across devices. Supports Windows and Linux. Also has an Android App. Since my server is Linux and I work across Windows desktops, this seemed ideal to use.

Setting up syncthing wasn’t too difficult. Lots of tutorials abound. The basic commands involve installing using apt-get.

setting up Fossil on Ubuntu – Part 3

September 30, 2018 / abhijit

Once fossil is set up, I wanted it to start automatically on system reboot, so that I needn’t worry about it in the future.

After trying many different ways of doing this and failing, I ended up with a configuration which included a shell script and supervisor to start it.

Those who know, do
ARISTOTLE

setting up Fossil on Ubuntu – Part 2

September 17, 2018 / abhijit

Setting up Nginx with fossil is also not too much of a problem.

Essentially, nginx has to be redirected to the /repos path to be able to work with fossil server command correctly.

setting up Fossil on Ubuntu – Part 1

September 16, 2018 / abhijit

I’ve always been a fan of Fossil which has been my go-to version management system since ages.

I wanted to set up fossil for all the code that I write. Fossil being a single binary file which I can put anywhere (and add that to the path) has always been a breeze to use.

Install MySQL on Ubuntu

April 15, 2018 / abhijit

Many applications require MySQL as a database.

Installing it requires just a few steps.

First update the system using

sudo apt-get update

change default sudo editor in visudo

March 15, 2018 / abhijit

For whatever reason, the default editor to change sudo permissions, which pops up when visudo is entered, is set to nano. I don’t have a clue why an option can’t be given on first use to change the editor.

The way to change it is to run the update-alternatives command

$> sudo update-alternatives --config editor

Which gives us these options.

Select 3 for vim.basic and we’re back to sanity.

ruby – ‘rvm not found’ when running cron or ssh command

February 14, 2018 / abhijit

rvm or the Ruby Version Manager, works perfectly fine when there is a single version of Ruby to be run on the system (among multiple versions installed, of course) around the entire system. In a production scenario, updating ruby itself is a task which is not taken lightly!

This worked perfectly until I encountered two quite different situations –

One scenario was where I wanted to execute a command via ssh into the server. So something like –

ssh user1@server1 'ruby ~/program.rb'

The other being when I wanted to run a ruby program via cron

In both these cases, I kept getting the error rvm not found. Initially, I couldn’t understand this at all, because every time I logged in and ran the program or the command it would run prefectly.

And then I learnt about the difference between a login and a non-login shell.

linux – user, group configuration

February 1, 2018 / abhijit

When I’m setting up a linux system, since it’s not very often, I have to keep looking up the basic commands for user setup.

I had started putting them in a text file and now it’s reached here!

set default cron editor

January 28, 2018 / abhijit

By default when crontab-e is run for the first time, we get the choice to set the editor.

The selected editor is stored in a file ~/.selected_editor

However, if the selected editor needs to be changed later, the command is –

select-editor

To reset or unset the selected-editor completely, we can remove the ~/.selected_editor file completely.

Ref: https://www.howtogeek.com/410995/how-to-change-the-default-crontab-editor/