SECURING IFRAME CONTENT

Generally speaking the iframe tags are supposed to sandbox and lockdown the contents. Recently this was breached by Microsoft Live who broke out of the <iframe> sandbox and redirected the site to live.com Microsoft used at least 2 frame busting techniques to break out of the sandbox. Both of which show that browser security is …

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HTTP 301 REDIRECT

Ordinarily when a web site URL changes HTTP 301 permanent redirect is used tell a search engine where to look, HTTP 404 errors can be categorically sent to the home page. There is a full search capability with any SQL driven system and WordPress supports it with all themes. Given some URL errors we estimate …

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HTML 5.1

HTML 5.1 is now published, it adds a few more tags for images etc to make it easier for search engines to find an image for mobile phones etc. Among the more interesting new bits, the <picture> and srcset attributes .The <menuitem> and “context” can change menus which might affect dome dynamic site designs. WordPress …

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CONVERTING COBOL TO WEB

Cobol is still used with many legacy shops. The system is standardized around the 80×25 character terminal which is typical for 1970s period systems, The database is usually DB2. IBM has moved DB2 to the cloud so it’s possible to leverage existing databases directly. Conversion from database vendors can be done as well. SQL is …

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CRIMINALIZING A LINUX SITE?

This site has numerous records in the database. Some of the articles contain embedded spreadsheet images such as pie graphs or line charts. We have dozens of posts with embedded dynamic images. All of the game benchmarks are Excel spreadsheets. We use OneDrive which allows us to embed worksheets and graphics. For some reason Microsoft …

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ADVERTISEMENTS Q4 2016

Most websites are funded with advertisements. Income is needed to feed the author etc. For many years some sites used paid for click ads. These are no longer widely used. We have used Amazon for a long time who are a commissioned ad. We only earn if somebody actually buys. CPM ads have slowly recovered but valuations …

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SHOP FOCUS

Linux server is fairly arcane which is why we established this site. The server variant is a command line based platform. We use Azure so we use Putty to connect to our servers. Among the skills developed with LInux server is the BASH shell language. Generally its a text file with assorted commands. It’s possible …

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INSTALL WORDPRESS ON LINUX SERVER

If you are using a self hosted WordPress setup it easy to install a new site with Linux. wget https://wordpress.org/latest.tar.gz then you can unpack it and open the site for configuration with a browser. tar -xvf latest.tar.gz generally a database will need to be created for the wordpress setup so its not a bad idea …

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NEW SEAGATE HARD DISK DRIVES

Hard disk drives in the 3½: format are still sticking with the standard form factor. The changes in the industry are with 2½” drives like the ones in laptop machines. Historically 2½”: drives were 9.5 mm thick. It was standardized many years ago. SSD drives have been made in thinner 7 mm thick form factors. …

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WEBMIN

Unfortunately Ubuntu liNUX does not offer web based administration directly, instead users have to manually add the Debian repository. This is inconvenient and its a fair amount of work involved to add this to the system. Now you need to install webmin from APT repository sudo gedit /etc/apt/sources.list then add to the bottom deb http://download.webmin.com/download/repository/ sarge …

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