guiwuff guiwuff

1. Configure server: Nginx

Create the certificate:

$ sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/nginx-selfsigned.key -out /etc/ssl/certs/nginx-selfsigned.crt

Create a strong Diffie-Hellman group:

$ sudo openssl dhparam -out /etc/ssl/certs/dhparam.pem 2048

Some examples of SNAT, DNAT with iptables with comments

mainly used in start-up script

How to test 'safely'

When we play with iptables aka firewall we might end up in situation, where we execute rule, which has unforseen impact - lock yourself out. Recovering from this situation is necessity.

How to:

Enable reboot via SMS.

Test all commands in shell first before putting them into Start-up script. This way the command will be wiped out, when unit is rebooted.

masquarade all outgoing packets to be WLAN0 IP

:%s/\<foo\>/bar/gc
Change only whole words exactly matching 'foo' to 'bar'; ask for confirmation.

http://vim.wikia.com/wiki/Search_and_replace

Maximum Upload Size in Wordpress

Put or modify php.ini in your root wordpress installation directory (eg. public_html/)

upload_max_filesize = 64M
post_max_size = 64M
max_execution_time = 300

Common regex pattern for URL Redirection in Wordpress

all : (.*)
- eg: /category/category-name/(.*).html => /category/category-name/$1/
- redirect /category/category-name/all-kind-of-name.html into /category/category-name/all-kind-of-name/
2 digit month (01-12) and 4 digit year : ((0[1-9])|(1[0-2])) and (\d{4}) eg:/category-name/article-title-(\d{4})-((0[1-9])|(1[0-2]))/ => /category-name/article-title-$2-$1/

Create Custom Docker Images for php-fpm with additional Modules

Make sure you have docker up and running.

Base Image php:5.6.30-fpm

Pull the official php-fpm 5.6 from docker registry, it will pull all of the neccessary files from docker and ready to be used by a container.

Image reference in the docker hub : https://hub.docker.com/_/php/, the latest one would be php version 7, in this build I want to specifically use php 5.6.x since that is the version used in the production server currently.

Open iTerm2 App from Finder context menu

Run iTerm2 Here listed in the context menu of the current Finder's directory, installed as a Service and can have global Keyboard shortcut

Create Service using Automator

Reference : https://gist.github.com/pdanford/158d74e2026f393e953ed43ff8168ec1 Run Automator > New Service > Action > Run Apple Script Service Received Selected Folders in Finder

	# Reference : https://gist.github.com/pdanford/158d74e2026f393e953ed43ff8168ec1
	# Open Automator -> Application -> Action -> Run Apple Script

	on run {input, parameters}
	tell application "Finder"
	set dir_path to quoted form of (POSIX path of (folder of the front window as alias))
	end tell
	CD_to(dir_path)
	end run

	# put this file inside the directory to be ignored in git commit
	# the folder itself will be included in the commit
	*
	!.gitignore