Generate a Gravatar URL with Ruby
To get a Gravatar you need to hash an email address with the MD5 algorithm.
MD5 is a part of the Ruby standard library. Rails loads it by default, but otherwise you will have to require it yourself.
This is a simple implementation.
Gravatar su...
Written by Sean Behan on 04/11/2014
Reshape an Array of Form Inputs for Flask with getlist()
This is how to reshape an array using Python without Numpy.
This is a fairly simple task but it can be a little confusing to wrap your head around. I ran into this problem while working with Flask, working with array from form fields.
I wanted to us...
Written by Sean Behan on 03/07/2017
Change default ssh port number on Ubuntu
Login as the root user or as a user that can execute sudo commands.
#open this file for editing...
vim /etc/ssh/sshd_config
Find the line that reads
Port 22
Change this to an different and an available port number...
Port 8000
Next reload ssh
/etc/...
Written by Sean Behan on 06/17/2012
Listing Files and Directories with PHP
Listing all files and directories using PHP 5.
<?php
$files = array(); $dir = dir(".");
while(false!==($file=$dir->read())):
if(($file{0}!=".") && ($file{0}!="~") && (substr($file, -3)!="LCK")
&& ($file!=basename($_SERVER["PHP_SELF"]))):
...
Written by Sean Behan on 06/17/2012
Fun with Apache2 - httpd not running, trying to start (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down
Have you ever gotten this error message when trying to (re)start Apache
httpd not running, trying to start
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
If you are running with ...
Written by Sean Behan on 06/17/2012
