gwpl

I used to think that

ssh -X me@some.box

"just bloody worked". However this might not work - ssh must play ball on both sides of the link. On the remote (ssh server, X client) sshd must sit behind some port, tell Xlib to send X11 requests to it and then forward them back to you the X server (where the ssh client is). If the remote box is locked down to prevent this, you will get:

X11 forwarding request failed on channel 0

as part of an otherwise working login. As it happens, I am the admin of the remote box in question, so I followed the ArchWiki and went to /etc/ssh/sshd_config and uncommented

gwpl

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.

In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit

gwpl

#!/bin/bash

LOGFILE=/home/"${USER?}"/.ssh_last_wrapper_invocation_error.log
SSHHISTORY=/home/"${USER?}"/.ssh_commands_history
ALLOWED_COMMANDS=/etc/ssh/users_configs/"${USER?}"/allowed_commands

if [ "$1" == 'make_files_for_user' ]; then
if [ -z "$2" -o -z "$3" ]; then
  echo Usage: $0 make_files_for_user Username Groupname
  exit 1

gwpl

#include <unistd.h>
// compile with: gcc only_exec_command.c -static -o only_exec_command
// It is "pseudo-shell" that will only execute provided -c command.
// Usage : ./only_exec_command -c /bin/echo This is test

// Please note that this is far from perfect. It should actually parse and split string
// provided in argv[2], like shlex.Split in python. However, it's enought for my application
// of running one binary specified in ForceCommand sshd_config option.

int main(int argc, char **argv){

gwpl

\documentclass[fontsize=8.5pt]{scrartcl}

% set page size
\usepackage{geometry}
\geometry{
   paperwidth = 3.5in,
   paperheight = 2in,
   margin = 0.15in,
}

gwpl

#/etc/fstab
# remote on remoteY ( remoteY has to be defined in /root/.ssh/config,/home/userX/.ssh/config )
userX@remoteY:/mnt/remoteY/ext4/userX/mount /mnt/remoteY_mount fuse.sshfs noauto,x-systemd.automount,x-systemd.device-timeout=10,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/gwpl/.ssh/id_ecdsa521_sftplenovox230,allow_other,default_permissions,uid=123456789,gid=100,reconnect 0 0              
# assuming 123456789 is UID and 100 GID desired of mount

gwpl

% Following standalone configuration: http://tex.stackexchange.com/a/94395/7128
\documentclass[varwidth=\maxdimen]{standalone}
% Usage: pdflatex '\def\txtfile{input.txt} \input{this_document_template.tex}'
% Example pdflatex '\def\txtfile{penguin.txt} \input{standalone_verbatim.tex}'
\usepackage{verbatim}
\begin{document}
% following http://tex.stackexchange.com/a/1495/7128
\ifdefined\txtfile
%
%Specified file: \txtfile

gwpl

[color]
	branch = auto
	diff = auto
	interactive = auto
	status = auto
	grep = auto
[alias]
	st = status
	ci = commit
	br = branch

gwpl

wget -A pdf -c -r -l 1 -nd https://www.raspberrypi.org/magpi-issues/

gwpl

# type "My\nmultiline\nlabel" and see it printed on 32x57 mm Dymo 450 via network ;)
# based on http://unix.stackexchange.com/a/298020/9689
cd /tmp
read -r -p 'Label:' label && convert -background white -fill black -density 600x600 -size 1346x756 -font 'DejaVu-Sans' -gravity center label:"${label}" label.pdf && xpdf label.pdf && lpr -P DYMO_LabelWriter_450_RPi2_B_1st -o raw -o scaling=100 label.pdf