Ming Fang mingfang

## pgcalc.sh
#!/bin/bash

#Computes the suggested PG count similar to this http://ceph.com/pgcalc/

#Reguirements:
#  - must run on ceph admin
#  - depends on awk, wc and bc commands

#Limitations:
#  - Assumes same OSD# for all pools

## gulpfile.js
// DO NOT CHANGE //

const gulp = require('gulp');
const webpack = require('webpack');
const WebpackDevServer = require('webpack-dev-server');
const gwebpack = require('webpack-stream');
const browserSync = require('browser-sync');
const runSequence = require('run-sequence');
const debug = require('gulp-debug');
const cache = require('gulp-cached');

## show vm ip
virt-cat -d vm1 /var/lib/dhcp/dhclient.eth0.leases

## gist:dcc5203c78775b9f4f8f
lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL

## public ip
curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//'

## gist:d7668c6a54079d613f89
iptables -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -m recent --set --name SSH --rsource
iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --hitcount 4 --rttl --name SSH --rsource -j REJECT --reject-with tcp-reset
iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --hitcount 3 --rttl --name SSH --rsource -j LOG --log-prefix "SSH brute force "
iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --update --seconds 30 --hitcount 3 --rttl --name SSH --rsource -j REJECT --reject-with tcp-reset
iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT

#based on https://rudd-o.com/linux-and-free-software/a-better-way-to-block-brute-force-attacks-on-your-ssh-server

## convert id_rsa to pem
openssl rsa -in ~/.ssh/id_rsa -outform pem > id_rsa.pem
chmod 600 id_rsa.pem

## docker registry search
curl https://build.learnvest.net:5000/v1/search | python -m json.tool

## boot2docker time sync
boot2docker ssh sudo date --set \"$(env TZ=UTC date '+%F %H:%M:%S')\"

## recursive git pull
for dir in */; do echo $dir && pushd $dir && git submodule foreach git pull && popd; done
	#!/bin/bash

	#Computes the suggested PG count similar to this http://ceph.com/pgcalc/

	#Reguirements:
	# - must run on ceph admin
	# - depends on awk, wc and bc commands

	#Limitations:
	# - Assumes same OSD# for all pools
	// DO NOT CHANGE //

	const gulp = require('gulp');
	const webpack = require('webpack');
	const WebpackDevServer = require('webpack-dev-server');
	const gwebpack = require('webpack-stream');
	const browserSync = require('browser-sync');
	const runSequence = require('run-sequence');
	const debug = require('gulp-debug');
	const cache = require('gulp-cached');
	iptables -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -m recent --set --name SSH --rsource
	iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --hitcount 4 --rttl --name SSH --rsource -j REJECT --reject-with tcp-reset
	iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --hitcount 3 --rttl --name SSH --rsource -j LOG --log-prefix "SSH brute force "
	iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --update --seconds 30 --hitcount 3 --rttl --name SSH --rsource -j REJECT --reject-with tcp-reset
	iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT

	#based on https://rudd-o.com/linux-and-free-software/a-better-way-to-block-brute-force-attacks-on-your-ssh-server
	openssl rsa -in ~/.ssh/id_rsa -outform pem > id_rsa.pem
	chmod 600 id_rsa.pem