Ygor Almeida ygorth

## centos_python_dev_env_setup
#!/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

## pedantically_commented_playbook.yml
---
# ^^^ 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.

## troubleshooting-ansible-tower-cors-socket-io.txt
# 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"

## troubleshooting-ansible-project-externalscm-http_proxy.txt
# 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"

## troubleshooting-stornext-client-rhel7-kernel-panic.txt
# 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.

## test_9000mtu_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:

## git-clearHistory
-- 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 git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git
git push -u --force origin master

## netping.sh
#!/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

## restore-git-submodules.sh
#!/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

## troubleshooting-centos-7-postfix-amazon-ses.txt
# Error message
$ tail -f /var/log/maillog
Dec  6 06:06:16 prdmgtjmp01 postfix/smtp[17822]: 0B11CC41153: to=<x@gmail.com>, 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:
	#!/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
	---
	# ^^^ 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.
	# 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"
	# 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.
	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:
	-- 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 git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git
	git push -u --force origin master
	#!/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
	#!/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
	# Error message
	$ tail -f /var/log/maillog
	Dec 6 06:06:16 prdmgtjmp01 postfix/smtp[17822]: 0B11CC41153: to=<x@gmail.com>, 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: