Web and Network

OWASP Joomla! Security Scanner is a great security tool to check your Joomla! website for known vulnerabilities and other security issues and be one step ahead of hackers. This tool uses Perl so you need to have it installed on your machine. Most of Linux distributions have it preinstalled.

Download Joomscan from sourceforge.net (recommended for latest version) or here.
Extract files and upload to your Linux box.
Navigate to joomscan-latest
run ./joomscan.pl update to update local vulnerabilities database
run ./joomscan.pl -u www.yoursite.com -ot
This will run vulnerabilities scan and save report in joomscan-latest/report folder
For other options and commands run ./joomscan.pl

Apache

Following rule will replace old-directory with new-directory in your website's URL. Add this to .htaccess file.


Options +FollowSymLinks
RewriteEngine On
RewriteRule ^old-directory(.*)$ http://www.yourdomain.com/new-directory$1 [l,r=301,nc]

Syntax:

rewriterule - defines rewrite rule
^ - start matching
(.*) - match and remember everything
$ - end matching
$1 - append original URL part captured in (.*)
l - last rule (only omit in linked rules)
r=301 - redirect using 301 response (permanent redirect)
[nc] - non case sensitive

Following rewrite rule will add www to all URL's on your website in case a visitor didn't type www or followed a link without www. Add this to your .htaccess file:


Options +FollowSymLinks
RewriteEngine On
rewritecond %{HTTP_HOST} ^yourdomain.com$ [nc]
rewriterule ^(.*)$ http://www.yourdomain.com/$1 [l,r=301,nc]

Spacing between lines separated by Paragraph tag <p></p> is much wider in Internet Explorer (comparing to Firefox, Chrome or Safari).

Resolved by adding following code to .css file:


p {
     margin:  0 0 1em 0;
     padding:  0;
}

Check your Joomla site for vulnerabilities

Replace directory using mod_rewrite redirect in .htaccess

Add www to all URL's on Apach website (.htaccess mod_rewrite)

HTML paragraph double spacing in Internet Explorer