Chad Mayfield chadmayfield

Just an Engineer writing and maintaining code and doing things with Linux, ansible, Kubernetes, containers and security.

chadmayfield / gist:8726b90c29fe75576cf2

Created May 26, 2015 20:40

keybase.md

	### Keybase proof

	I hereby claim:

	* I am chadmayfield on github.
	* I am crm (https://keybase.io/crm) on keybase.
	* I have a public key whose fingerprint is A22C 343E 104B B7A4 A257 30B3 E854 9105 B0B8 DBFB

	To claim this, I am signing this object:

chadmayfield / print_env.py

Created June 14, 2016 03:28

Print env in python

	#!/usr/bin/python

	import os

	for param in os.environ.keys():
	print "%20s %s" % (param,os.environ[param])

chadmayfield / find_large_files.sh

Last active June 15, 2016 17:31

	#!/bin/bash

	find / -path /proc -prune -o -path /dev -prune -o -type f -size +50M -exec ls -lh {} \; \| awk '{ print $5 "\t: " $NF}' \| sort --human-numeric-sort -r

chadmayfield / view_conns.sh

Last active June 16, 2016 19:15

View established connections with hostnames

	#!/bin/bash

	netstat -tunlap \| awk '{print $5}' \| grep [0-9] \| egrep -v '(127\|0).0.0.*\|::1'\| awk -F ':' '{print $1}' \| sort -u \| xargs -n 1 host

chadmayfield / PhoneCodes.txt

Created November 30, 2016 17:38

	Phone shortcuts
	------------------------
	1. *#06# – IMEI number
	2. #0# – Service menu on devices like the Galaxy S III
	3. ##4636## – Information about device, user statistics and battery
	4. ##34971539## – Details on camera
	5. ##273282255663282##* –Instant backup media files
	6. ##197328640## – Activating test mode devices
	7. ##232339## – Test for Wireless LAN
	8. ##0842## – Test for vibration and backlight

chadmayfield / FunWithCurl.txt

Created November 30, 2016 17:40

	Dump headers
	curl -I https://google.com

	Dump headers with content
	curl -i https://google.com

	Dump headers to a file
	curl -sD headers2.txt -o /dev/null https://kyln.io

	Be verbose in query

chadmayfield / ExampleOutput.txt

Last active November 30, 2016 18:20

	user@localhost:~$ ./fun_with_curl.sh
	content_type text/html;charset=utf-8
	filename_effective /dev/null
	ftp_entry_path
	http_code 200
	http_connect 000
	local_ip 192.168.15.38
	local_port 50257
	num_connects 1
	num_redirects 0

chadmayfield / mylogfile.log

Created November 30, 2016 18:17

	Oct 24 13:10:56.111039 2016] [core:notice] [pid 13] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
	[Mon Oct 24 13:59:21.008651 2016] [core:notice] [pid 18] SELinux policy enabled; httpd running as context system_u:system_r:svirt_lxc_net_t:s0:c664,c840
	[Mon Oct 24 13:59:21.009400 2016] [suexec:notice] [pid 18] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
	[Mon Oct 24 13:59:21.043636 2016] [ssl:notice] [pid 18] AH01884: Operating in SSL FIPS mode
	[Mon Oct 24 13:59:21.044086 2016] [ssl:warn] [pid 18] AH01902: Host 10.10.10.7:443: X.509 CRL storage locations configured, but CRL checking (SSLCARevocationCheck) is not enabled

chadmayfield / GetStatusCode.sh

Created November 30, 2016 18:19

	#!/bin/bash

	# get http status code using curl
	curl -Iso /dev/null -w '%{http_code}\n' http://kyln.io/keybase.txt

chadmayfield / rhel2centos.txt

Last active July 4, 2022 11:00

RHEL7 to CentOS7 conversion output

	(0) [chad@macbookpro:~] $ ssh -l root 192.168.1.56
	[email protected]'s password:
	Last login: Thu Apr 20 11:30:29 2017
	[root@localhost ~]# ./convert_rhel2centos.sh
	Removing with RPM: redhat-release-server
	Removing with yum: redhat-support-lib-python
	Loaded plugins: product-id, search-disabled-repos, subscription-manager
	This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
	Resolving Dependencies
	--> Running transaction check

	Phone shortcuts
	------------------------
	1. *#06# – IMEI number
	2. #0# – Service menu on devices like the Galaxy S III
	3. ##4636## – Information about device, user statistics and battery
	4. ##34971539## – Details on camera
	5. ##273282255663282##* –Instant backup media files
	6. ##197328640## – Activating test mode devices
	7. ##232339## – Test for Wireless LAN
	8. ##0842## – Test for vibration and backlight