Showing posts with label tcpdump. Show all posts
Showing posts with label tcpdump. Show all posts

Thursday, July 15, 2010

tcpdump to debug the an encoding problem

This is kind of over kill but the HTTP headers plugin for firefox wasn't telling me the truth. I dev web apps using a locale apache2 server. And in this case I needed to deal out an sjis page, of course rails is utf-8 inside and somewhere/somehow the encoding is getting forced to utf8. So to get the truth tcpdump it.

sudo tcpdump -i lo  -Xx -s1500

After this I refreshed the page in question and read the log. Its was clear that rails is always writing utf-8 into the HTTP header which overrode the weaker meta tag setting I was trying to us.