Tag Archives: firewall

Too good to #0008

rinetd-style circuit level gateway in systemd

This accepts port 465/tcp and forwards all connections to a service running somewhere else on 1194/tcp.

The socket unit accepts the connection on port 465:

# /etc/systemd/system/tcp465-to-tcp1194.socket
[Unit]
Description="openvpn 465/tcp to 1194/tcp (socket)"

[Socket]
ListenStream=465

[Install]
WantedBy=sockets.target

systemd-socket-proxyd connects to the backend:

# /etc/systemd/system/tcp465-to-tcp1194.service
[Unit]
Description="openvpn 465/tcp to 1194/tcp (service)"

[Service]
ExecStart=/lib/systemd/systemd-socket-proxyd 10.12.13.14:1194
User=proxy

(Anyone old enough to remember that this was called a plug-gateway in the TIS Firewall Toolkit?)


Python pip/virtualenv/pipenv micro-HOWTO

Clone project with wacky dependencies:

git clone https://github.com/example/project.git

Install dependencies (from requirements.txt):

pipenv install (-r requirements.txt)

Run:

pipenv run ./script

Template for git commit message

Create the template, I prefer it outside the repository:

(blank line)
(blank line)
foo#1234 is the neverending story I'm constantly working on

Configure the path, relative to the repository root:

git config commit.template ../commit-template-for-foo.txt