Mosh is a remote terminal application that aims to overcome the issues that many other protocols face.
For me, Mosh addresses the lack of roaming support and intermittent network connectivity that I would face when trying to connect to servers whilst on the train or anywhere on the go.

(semi)technicalities

Mosh connects to the server machine over SSH, meaning that there is no concern of a new avenue of vulnerability. Rather we get the same security as we would if SSH’ing into the server ourselves.
Once the connection has been established, a port is opened and Mosh communicates with that port.

Installation

On Debian/Ubuntu, Mosh is available in the mainstream repository, so a simple sudo apt install mosh is all that’s needed.

If you want to set up Mosh on a device where you don’t have root privileges, you ca

Client Support

The SSH client I used (PuTTY) doesn’t support Mosh connections - meaning that I can’t use it anymore. But hey - here’s to progression.

MobaXterm

Well, uh not gonna lie but because of the UI I don’t even want to try this one out.

Termius (Formerly Server Auditor)

See related post here: Termius - My new SSH client

A bit big (108MB!) for a terminal client… Maybe I should’ve tried MobaXterm..
EDIT: It uses Electron. Well no wonder it’s so large.

Anyhow, the free version of Termius was more than enough for me. You get an ad-free experience with SSH, Telnet and Mosh support, as well as port forwarding capabilities.

Experience

The first thing I got trying to connect to my server was a nice little error message telling me that I didn’t have the UTF-8 locales.

The locale requested by LANG=en_US.UTF-8 isn't available here.
Running `locale-gen en_US.UTF-8' may be necessary.

mosh-server needs a UTF-8 native locale to run..

Unfortunately, the local environment ([no charset variables]) specifies the character set "US-ASCII",
The client-supplied environment (LANG=en_US.UTF-8) specifies the character set "US-ASCII".

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory

blah blah blah fix that like this:

apt-get update
apt-get install -y locales
locale-gen "en_US.UTF-8"
update-locale LC_ALL="en_US.UTF-8"

aaand we’re in!