magnetikonline

Install VirtualBox guest additions onto Ubuntu server guests

Have tested these steps successfully with Ubuntu guest of:

• 22.04LTS
• 18.04LTS
• 16.04LTS

using VirtualBox editions of 6.1, 6.0, 5.2 and 5.1 as host.

mosquito

Docker compose as a systemd unit

Create file /etc/systemd/system/docker-compose@.service. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
PartOf=docker.service
After=docker.service

evanwill

How to add more to Git Bash on Windows

Git for Windows comes bundled with the "Git Bash" terminal which is incredibly handy for unix-like commands on a windows machine. It is missing a few standard linux utilities, but it is easy to add ones that have a windows binary available.

The basic idea is that C:\Program Files\Git\mingw64\ is your / directory according to Git Bash (note: depending on how you installed it, the directory might be different. from the start menu, right click on the Git Bash icon and open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git, the mingw64 in this directory is your root. Find it by using pwd -W). If you go to that directory, you will find the typical linux root folder structure (bin, etc, lib and so on).

If you are missing a utility, such as wget, track down a binary for windows and copy the files to the corresponding directories. Sometimes the windows binary have funny prefixes, so

ourmaninamsterdam

The MIT License (MIT)

Copyright (c) 2015 Justin Perry

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

marcelom

#!/usr/bin/env python

## Tiny Syslog Server in Python.
##
## This is a tiny syslog server that is able to receive UDP based syslog
## entries on a specified port and save them to a file.
## That's it... it does nothing else...
## There are a few configuration parameters.

LOG_FILE = 'youlogfile.log'

scottstanfield

# Sensible, short .zshrc
# Gist page: git.io/vSBRk  
# Raw file:  curl -L git.io/sensible-zshrc

# GNU and BSD (macOS) ls flags aren't compatible
ls --version &>/dev/null
if [ $? -eq 0 ]; then
  lsflags="--color --group-directories-first -F"
else
  lsflags="-GF"

ianmariano

Make sure libxml2-devel, libxslt-devel and libiconv-devel are installed:

$ gem install nokogiri -- --use-system-libraries --with-xml2-include=/usr/include/libxml2 --with-xml2-lib=/usr/lib --with-xslt-dir=/usr/include/libxslt --with-iconv-include=/usr/include --with-iconv-lib=/usr/lib

vongosling

LInux

Three system configuration parameters must be set to support a large number of open files and TCP connections with large bursts of messages. Changes can be made using the /etc/rc.d/rc.local or /etc/sysctl.conf script to preserve changes after reboot.

1. /proc/sys/fs/file-max: The maximum number of concurrently open files.

fs.file-max = 1000000

2. /proc/sys/net/ipv4/tcp_max_syn_backlog: Maximum number of remembered connection requests, which are still did not receive an acknowledgment from connecting client. The default value is 1024 for systems with more than 128Mb of memory, and 128 for low memory machines.

net.ipv4.tcp_max_syn_backlog = 3240000

3. /proc/sys/net/core/somaxconn: Limit of socket listen() backlog, known in userspace as SOMAXCONN. Defaults to 128.

net.core.somaxconn = 3240000

zserge

autoload -U compinit colors vcs_info
colors
compinit

REPORTTIME=3
HISTFILE=~/.zhistory
HISTSIZE=5000
SAVEHIST=5000
setopt INC_APPEND_HISTORY
setopt EXTENDED_HISTORY

Luzifer

Running docker-compose as a systemd service

Files

File	Purpose
/etc/compose/docker-compose.yml	Compose file describing what to deploy
/etc/systemd/system/docker-compose-reload.service	Executing unit to trigger reload on docker-compose.service
/etc/systemd/system/docker-compose-reload.timer	Timer unit to plan the reloads
/etc/systemd/system/docker-compose.service	Service unit to start and manage docker compose