Web

Web

2023-10-24 2006-04-04
HTTP
2023-10-18 2004-08-19
HTML
2023-10-03 2013-07-03
Certificates, SSL / TLS, & al.
CSR, self-signed, SNI
2023-09-11 2005-12-06
Encoding special characters in URL
urlencode
2023-07-28 2007-09-10
CSS
column icon select
2022-01-16
/etc/hosts/ is ignored by my web browser
2020-05-03 2018-10-01
AWStats
2020-04-08 2019-06-12
Varnish HowTo's
Guru Meditation
2020-01-29 2019-10-14
Let's Encrypt TLS certificates
2019-09-26
Javascript : How to conditionally include a file ?
2019-08-28 2013-11-14
Lighttpd
2019-06-26 2014-03-20
Varnish
2018-12-26
What's the difference between Basic and Digest authentication ?
2018-05-24 2014-07-07
Piwik
2017-12-18
Log analysis with GoAccess
2017-09-22
Squid
2017-06-29
Should I cache linked images or embed base64 images ?
2015-12-07 2014-02-07
How to disable the server signature ?
Apache, Lighttpd, PHP, Varnish
2014-09-17 2014-09-15
Google's mod_pagespeed
2014-09-15
What is X-Content-Type-Options=nosniff ?
2014-03-20 2012-04-19
Debug/decode Akamai cache headers
cacheable, tiered
2013-12-10 2013-12-09
How to put a website under maintenance ?
302, 503, .htaccess, RewriteRule
2013-12-02
Syntax of Netscape cookie files
2013-11-28
load / reload / force-reload / refresh in Firefox vs Cache-Control
If-Modified-Since
2013-04-29
Detect whether a website is served by Akamai
2008-11-24
How to fight SQL injections ?

AWStats

2020-05-03 2018-10-01
AWStats
2019-10-10
How to import old logs into AWStats ?

Certificates, SSL / TLS, & al.

2023-10-03 2018-05-18
Glossary of certificates
2022-09-05 2017-03-20
How to read metadata of a certificate (Common Names, Subject Alternative Names, dates, ) ?
2019-08-02 2015-01-21
SSL / TLS certificates : format, file types, metadata
-bundle.pem, .crt, .key, .pem, common name
2019-08-02 2013-07-03
Theory of SSL / TLS
2019-04-03 2016-10-20
How to create a self-signed certificate ?
openssl
2017-05-18
SNI
2017-03-10
How to create a CSR ?
certificate signing request

CSS

2023-07-28 2019-06-14
CSS selectors
:first-child
2021-06-09
How to make text not selectable ?
2020-12-20 2010-08-20
2 columns in CSS
2018-03-30 2007-12-19
How to size text using em's ?
2017-10-10
3 columns in CSS, filled top to bottom
2015-11-11 2015-10-04
How to manually minify a CSS ?
2014-10-09
CSS : how to add some text and an icon to an HTML element ?
:after, :before, pseudo-class
2007-09-10
The CSS box model

HTML

2023-10-18 2004-06-18
HTML special characters
2023-05-23 2014-12-30
HTML5
2023-04-07
Minimal HTML document
2019-01-17 2012-04-14
How to embed base64-encoded images in HTML or CSS ?
favicon
2018-10-16
HTML : how to display images in a row ?
2018-10-05
How to specify the character encoding of an HTML document ?
meta charset
2014-05-14
HTML color names
2004-08-19
HTML anchors and a:link, a:visited, a:hover, a:active and a:focus CSS pseudo-classes

Let'sEncrypt TLS certificates

2020-01-29
Redirect HTTP traffic to HTTPS
2020-01-14
Revoke / renew Let's Encrypt certificates with certbot
2020-01-14 2019-10-14
Let's Encrypt : setup