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@sigio
sigio / play-snmpd.yml
Last active January 11, 2020 22:56
Ansible play to install snmpd on centos (5/6)
# Install and configure snmpd
---
- hosts: centos5:centos6
gather_facts: yes
vars:
tasks:
- name: Install snmpd package
@simlun
simlun / raspi-monitor
Last active June 9, 2024 15:15
Script to enable and disable the HDMI signal of the Raspberry PI
#!/bin/bash -e
# /usr/local/sbin/raspi-monitor
# Script to enable and disable the HDMI signal of the Raspberry PI
# Inspiration: http://www.raspberrypi.org/forums/viewtopic.php?t=16472&p=176258
CMD="$1"
function on {
/opt/vc/bin/tvservice --preferred
@Khoulaiz
Khoulaiz / gist:41b387883a208d6e914b
Last active August 30, 2024 01:05
Checking ports without telnet

Here are several different ways to test a TCP port without telnet.

BASH (man page)

$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C

$ cat &lt; /dev/tcp/127.0.0.1/23
@mbrzusto
mbrzusto / fix_bad_quote_json.py
Created November 9, 2015 20:21
convert single quote json data file to double quote json data file (without mangling inner quotes)
__author__ = 'mbrzustowicz'
# metadata.json has single quotes like this
# {'asin': 'B00M0AEPXG', 'imUrl': 'http://ecx.images-amazon.com/images/I/51hcXTUeHLL._BO2,204,203,200_ ..... }
# so the strategy is to read each line as a string, and dump into a REAL json file
import json
import ast
fr=open("/Users/mbrzustowicz/Downloads/metadata.json")
@rafaeltuelho
rafaeltuelho / openshift-cheatsheet.md
Last active April 2, 2025 15:57
My Openshift Cheatsheet

My Openshift Cheatsheet

Project Quotes, Limits and Templates

  • Cluster Quota
oc create clusterquota env-qa \
    --project-label-selector environment=qa \
    --hard pods=10,services=5
    
oc create clusterquota user-qa \
@andreicristianpetcu
andreicristianpetcu / ansible-summary.md
Created May 30, 2016 19:25
This is an ANSIBLE Cheat Sheet from Jon Warbrick

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

@efrecon
efrecon / run.tpl
Last active April 17, 2025 07:01
`docker inspect` template to regenerate the `docker run` command that created a container
docker run \
--name {{printf "%q" .Name}} \
{{- with .HostConfig}}
{{- if .Privileged}}
--privileged \
{{- end}}
{{- if .AutoRemove}}
--rm \
{{- end}}
{{- if .Runtime}}
@RafPe
RafPe / vyos-optimisations
Last active October 30, 2024 21:54
vyos throughput optimizations
Server 2 sockets,6 cores each, 2.4ghz
# Set ixgbe options
# Limit RSS queues to the number of physical cores per cpu
# Disable offload
# When you change this, you need to run the command and reboot for it to take.
echo "options ixgbe LRO=0,0 MQ=1,1 RSS=6,6 VMDQ=0,0 vxlan_rx=0,0" > /etc/modprobe.d/ixgbe.conf
# Shut down HT cores
for i in $(seq 1 2 23); do
@onnimonni
onnimonni / validate_sha256sum
Last active May 8, 2024 11:53
Shell script to validate file sha256 hashes. I use this to check if downloaded binaries are correct in Dockerfiles. This might make updating harder but at least it you see which parts have been updated since the last run.
#!/bin/sh
##
# This script contains helper for sha256 validating your downloads
#
# Source: https://gist.github.com/onnimonni/b49779ebc96216771a6be3de46449fa1
# Author: Onni Hakala
# License: MIT
##
# Stop program and give error message
@genadipost
genadipost / foreman_ad_sso.md
Last active December 12, 2019 09:27
Foreman and Active Directory integration (Kerberos Single Sign-On)

This script installs and configures Foreman with Active Directory integration

What the script does:

  • Configures Active Directory as its name resolver
  • Using sssd and realmd the rhel server joins the AD domain (DNS record, computer account, host SPN created in the AD)
  • Using samba, HTTP spn is created in AD and a keytab that contains the HTTP principal
  • Foreman is installed with IPA/AD support, SSO is configured

Sources