ygorth’s gists

ygorth / centos_python_dev_env_setup

Last active July 24, 2022 13:26 — forked from iDevPy/centos_python_env_setup

CentOS 7: Install Python 3.6.1, pip, virtualenv, and virtualenvwrapper

	#!/bin/bash
	#####################################################################
	## IMPORTANT ##
	# Run this script with root (sudo su -), wont work if run as sudo.
	# Change the variables as needed.
	######################################################################
	USER=youruser # User that will have ownership (chown) to /usr/local/bin and /usr/local/lib
	USERHOME=/home/${USER} # The path to the users home, in this case /home/youruser
	PYSHORT=3.6 # The Python short version, e.g. easy_install-${PYSHORT} = easy_install-3.6
	PYTHONVER=3.6.1 # The actual version of python that you want to download from python.org

ygorth / pedantically_commented_playbook.yml

Created January 8, 2016 18:21 — forked from marktheunissen/pedantically_commented_playbook.yml

Insanely complete Ansible playbook, showing off all the options

	---
	# ^^^ YAML documents must begin with the document separator "---"
	#
	#### Example docblock, I like to put a descriptive comment at the top of my
	#### playbooks.
	#
	# Overview: Playbook to bootstrap a new host for configuration management.
	# Applies to: production
	# Description:
	# Ensures that a host is configured for management with Ansible.

ygorth / troubleshooting-ansible-tower-cors-socket-io.txt

Last active February 21, 2017 10:31

Troubleshooting: Ansible Tower - Cross-Origin Request Blocked (CentOS 7.2.1511 - Python 2.7.5)

	# CentOS Linux release 7.2.1511 (Core)
	# Python 2.7.5
	# Ansible Version
	# 1.9.4
	# Ansible Installation Method
	# yum
	# Tower Version
	# 2.4.3
	# Troubleshooting: Ansible Tower - Cross-Origin Request Blocked (CentOS 7.2.1511 - Python 2.7.5)
	# Error messages: "Live events: error connecting to the Tower server." OR "Socket error: connection refused by host"

ygorth / troubleshooting-ansible-project-externalscm-http_proxy.txt

Last active August 21, 2017 01:09

Troubleshooting: Ansible Tower - Project - External SCM vs HTTP_PROXY

	# CentOS Linux release 7.2.1511 (Core)
	# Python 2.7.5
	# Ansible Version
	# 1.9.4
	# Ansible Installation Method
	# yum
	# Tower Version
	# 2.4.3
	# Troubleshooting: Ansible Tower - Project - External SCM vs HTTP_PROXY
	# Error messages: "unable to access 'https://github.com/ansible/tower-example.git/': Failed connect to github.com:443; Connection timed out"

ygorth / troubleshooting-stornext-client-rhel7-kernel-panic.txt

Last active January 11, 2017 15:32

Troubleshooting: StorNext File System Client 5.3.2.1 - CVFS - RHEL 7 - Kernel PANIC

	# Red Hat Enterprise Linux Server release 7.2 (Maipo) - Linux 3.10.0-327.el7.x86_64
	# StorNext File System Client:
	## Client Revision 5.3.2.1 Build 64849 Branch branches_5.3.2.1 BuildId A \| Built for Linux 3.10.0-121.el7.x86_64 x86_64
	## File: snfs_client_RedHat7_x86_64.bin \| MD5: 74a80625170e85089b39c351fb4fe246
	# Troubleshooting: StorNext File System Client 5.3.2.1 - Kernel PANIC
	# kdump \| vmcore-dmesg.txt:
	[ 675.569471] CVFS: Linux Interface Verification
	[ 675.569476] CVFS: Build kernel level = "3.10.0-121.el7.x86_64"
	[ 675.569477] CVFS: Install kernel level = "3.10.0-327.el7.x86_64"
	[ 675.569479] CVFS: Linux Interface Verification Complete, 12 items.

ygorth / test_9000mtu_jumbo_frames

Created March 3, 2017 13:41

How to test if 9000 MTU/Jumbo Frames

	OSX (that I run) it’s:
	ping -D -s 8184 [destinationIP]

	On Linux it’s:
	ping -M do -s 8972 [destinationIP]

	On Windows it’s:
	ping -f -l 9000 [destinationIP]

	If you’ve forgotten to enable jumbo frames/9k MTU on your client device you’re sending the ping from you’ll see:

ygorth / git-clearHistory

Last active July 13, 2018 20:55 — forked from stephenhardy/git-clearHistory

Steps to clear out the history of a git/github repository

	-- Remove the history from
	rm -rf .git

	-- recreate the repos from the current content only
	git init && git add . && git status
	git commit -m "Initial commit"

	-- push to the github remote repos ensuring you overwrite history
	git remote add origin [email protected]:<YOUR ACCOUNT>/<YOUR REPOS>.git
	git push -u --force origin master

ygorth / netping.sh

Last active November 9, 2017 05:03

Simple network tools

	#!/bin/bash
	if [ "$1" == "" ]
	then
	echo "Usage: ./ping .sh 192.168.1"
	else
	for x in `seq 1 254`; do
	ping -c 1 $1.$x \| grep "64 bytes" \| cut -d " " -f 4 \| sed 's/.$//'
	done
	fi

ygorth / restore-git-submodules.sh

Created November 28, 2017 20:32 — forked from aroemen/restore-git-submodules.sh

Restore git submodules from .gitmodules. Since git submodule init only considers submodules that already are in the index (i.e. "staged") for initialization this short script parses .gitmodules, and each url and path pair.

	#!/bin/sh

	set -e

	git config -f .gitmodules --get-regexp '^submodule\..*\.path$' \|
	while read path_key path
	do
	url_key=$(echo $path_key \| sed 's/\.path/.url/')
	url=$(git config -f .gitmodules --get "$url_key")
	git submodule add $url $path

ygorth / troubleshooting-centos-7-postfix-amazon-ses.txt

Last active December 6, 2017 06:21

troubleshooting-centos-7-postfix-amazon-ses

	# Error message
	$ tail -f /var/log/maillog
	Dec 6 06:06:16 prdmgtjmp01 postfix/smtp[17822]: 0B11CC41153: to=<[email protected]>, relay=email-smtp.us-west2.amazonaws.com[35.162.44.160]:587, delay=4.2, delays=0.03/0.04/4.2/0, dsn=4.7.0, status=deferred (SASL authentication failed; cannot authenticate to server email-smtp.us-west-2.amazonaws.com[35.162.44.160]: no mechanism available)
	Dec 6 06:11:04 prdmgtjmp01 postfix/qmgr[17814]: 9CA16C43607: from=<root@>, size=466, nrcpt=1 (queue active)
	Dec 6 06:11:05 prdmgtjmp01 postfix/smtp[17830]: 78F56C41157: SASL authentication failed; cannot authenticate to server email-smtp.us-west-2.amazonaws.com[52.10.113.69]: no mechanism available
	Dec 6 06:11:05 prdmgtjmp01 postfix/smtp[17829]: warning: SASL authentication failure: No worthy mechs found

	# Solution:
	$ yum install cyrus-sasl{,-plain}
	# Try again:

Ygor Almeida ygorth