n1snt

Note

I’ve written a newer optimized 2026 version of this guide with a faster setup using Zinit + Starship and improved plugin loading.

This version avoids slow shell startups and works better with modern Zsh setups.

Updated guide: https://gist.github.com/n1snt/2cccc8aa5f7b645a7628d3512c70deb6

Oh my zsh.

Francesco149

on linux 4.19, I get

error creating new backup file '/var/lib/dpkg/status-old': Invalid cross-device link

when trying to install stuff on a ubuntu docker container. this seems to be an issue with metacopy https://www.spinics.net/lists/linux-unionfs/msg06109.html

issue can be worked around by running

mohanpedala

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

muety

Script that will trigger a local to remote sync when any changes below your local Google Drive folder occur - but at max. every 10 minutes - and a remote to local sync every x (e.g. 30 minutes) via a cron job.

0. Install rclone and configure it for Google Drive
1. Create files listed below
2. Configure rclone_watch_local.sh to be run on startup (e.g. using a systemd service unit)
3. Add a cron job that runs rclone_remote2local.sh every x (e.g. 30) minutes

----------------------
rclone_local2remote.sh
----------------------

sanchezzzhak

SELECT table,
    formatReadableSize(sum(bytes)) as size,
    min(min_date) as min_date,
    max(max_date) as max_date
    FROM system.parts
    WHERE active
GROUP BY table

mcastelino

The netfilter hooks in the kernel and where they hook in the packet flow

The figure below calls out

• The netfilter hooks
• The order of table traversal

mayli

Squid

Squid is a HTTP(S) caching proxy to reduce bandwidth and improves response times.

data compression proxy

Data compression proxy is a http proxy by google aimming to reduce cellular data usage by gzip and webp (Yes, it will compress jpg, png and gif to webp).

Squid + data compression proxy

andrewmilson

package main

import (
  "net/http"
  "os"
  "bytes"
  "path"
  "path/filepath"
  "mime/multipart"
  "io"

tomasinouk

Some examples of SNAT, DNAT with iptables with comments

mainly used in start-up script

How to test 'safely'

When we play with iptables aka firewall we might end up in situation, where we execute rule, which has unforseen impact - lock yourself out. Recovering from this situation is necessity.

How to:

• Enable reboot via SMS.
• Test all commands in shell first before putting them into Start-up script. This way the command will be wiped out, when unit is rebooted.

masquarade all outgoing packets to be WLAN0 IP

jordimarinvalle

Setting Up OSX For Python Developments

This gist has been created using OSX Mavericks, but it sould work with any OSX 64-bits system – Mountain Lion, Mavericks and for sure Yosemite ;) In case that you are using a OSX 32-bits system OSX Lion or Snow Leopard (OSX Leopard is not supported by XCode) just include the 32-bits System? section.

Bash profile setup

64-bits System

OS X Mountain Lion, Mavericks & Yosemite are full 64-bit systems so lets configure them to ensure that incoming user's package installations (e.g., Homebrew package installations) will be on a 64 bits system and taking precedence over OSX packaged binaries.