XML and HTML sitemap file in SEO
The sitemap's a file place on your website that will enable Google and other search engines to crawl better and understand the structure of the site. Sitemaps also tell search engines which pages on your site are most important. It's a binder of your website's content.
Robots.txt File in SEO
A robots.txt file tells search engine crawlers which pages or files the crawler can or can't request from your site.
This is used mainly to avoid overloading your site with requests; it is not a mechanism for keeping a web page out
of Google. To keep a web page out of Google, you should use noindex directives, or to password-protect
your page.
How to change the hostname in Ubuntu
How to change hostname in Ubuntu. There are three options: temporary until the first restart and permanent by changing the hostname file or using command hostnamectl
How to change Tomcat default port
How to change Tomcat default port 8080 to any other port. Three steps: locate server.xml file, edit and restart the Tomcat service.
Tomcat default administrator password
How to activate the default tomcat manager application administrator password. This setting is for Tomcat 7 and newer.
How to fix briefly unavailable for scheduled maintenance in Wordpress
How to fix briefly unavailable for scheduled maintenance in Wordpress: by removing the .maintenance file from the installation root folder.
