full of … these

Save ‘less’ buffer to file

Posted: May 23rd, 2013 | Author: | Filed under: howto, linux | Tags: , | 1 Comment »

The site that originally hosted this useful trick is not accessible any more.

The original was at: http://kerneltrap.org/node/17043

Source of the text below is http://webcache.googleusercontent.com/search?q=cache:http://kerneltrap.org/node/17043&strip=1

 

to save the buffer that is being displayed by a session of `less’, use its pipe-to-shell-command capability by scrolling to the top of the file and press `|’ followed by `$’ as well as entering `tee DESTINATION_FILE’ when prompted for the shell command.

 


Redirect http to https behind varnish for php services

Posted: July 21st, 2011 | Author: | Filed under: howto | Tags: , , | 1 Comment »

It may happen to want to redirect a site from http to https behind a varnish cache system.

Is known the fact that varnish has a lack of redirect procedures, mostly from http to https.

A redirect on varnish from http to https looks like this:

if (req.http.host ~ "^(www\.)?site\.com$" && req.url ~ "\/checkout\/cart") {
       error 750 "https://www.site.com/checkout/cart";
sub vcl_error {
 #redirect to https
 if (obj.status == 750) {
 set obj.http.Location = obj.response;
 set obj.status = 302;
 return(deliver);
 }
 }

That will not work!

Varnish is not aware if the request was made from http (request directly sent to varnish) or https (request sent to pound).

So, I have found another page suggesting that the redirect can be added to php like this:

if (($_SERVER['REQUEST_URI'] == '/admin' || $_SERVER['REQUEST_URI'] ==  '/checkout/cart/') && !$_SERVER['HTTP_X_FORWARDED_PROTO']){
  header("Location: https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']);
}elseif (($_SERVER['REQUEST_URI'] != '/admin' && $_SERVER['REQUEST_URI'] != '/checkout/cart/') && $_SERVER['HTTP_X_FORWARDED_PROTO']) {
  header("Location: http://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']);
}

This code fixes https redirection.
Any comments are welcome. I am new to varnish.