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duncan.britton

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  1. Trolling
    duncan.britton reacted to uudruid74 for a blog entry, Mobile Detection on Tengine / Nginx   
    If you use a content management system for your site, it probably already deals with mobile systems. But, what if you have parts of your site that aren't in a CMS, or you do your site by hand?
     
    Well, it would be nice to either redirect from www.example.com to m.example.com, or (my preference), to redirect to a subdirectory. I like the subdirectory approach because I can easily share content with the main site via symlinks (such as the content management system). Normally, this isn't a nice thing to do to your caches since any caches along the way won't know that the symlinked files aren't the same, but if you can solve that, let me know.
     
    The following method redirects the user if they are on a mobile browser, but still allows them to use the "Request Desktop Site" feature. Just include the file in your tengine or nginx server configuration. The actual rewrite is done at the end. Scroll to the bottom and you'll see the line to edit. I tried to attach the file, but it said I'm not permitted to upload files of that type. Cut-Paste or email me and I'll send it to you.
    >#- This file for doing redirects based on mobile detectionset $mobile_rewrite do_not_perform;#- chi http_user_agent for mobile / smart phonesif ($http_user_agent ~* "(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino") {set $mobile_rewrite perform;}if ($http_user_agent ~* "^(1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-)") {set $mobile_rewrite perform;}set $force_dt_cookie "";if ($args ~ 'desktop=true') {set $mobile_rewrite do_not_perform;set $force_dt_cookie "desktop=true";}add_header Set-Cookie $force_dt_cookie;if ($http_cookie ~ 'desktop=true') {set $mobile_rewrite do_not_perform;}location /m {error_page 404 /m/error/404.html;}#- redirect to /m except /m, /mail, /joomlaif ($mobile_rewrite = perform ) {rewrite ^(?!(/m|/joomla)+) /m$request_uri? break;break;}#- To redirect to m.example.com, change above rewrite to# rewrite ^ https://m.example.com$request_uri? break;
    That's it! I just put my mobile files in the /m directory of the server.
  2. Trolling
    duncan.britton reacted to uudruid74 for a blog entry, Adding SSL to Tengine / Nginx   
    OK, you've got your SSL certificate and you have tengine or nginx setup, but you need it secure. After all, you've heard of all the recent DH attacks, BEAST, CRIME, FREAK, Heartbleed and others, right? Is your system already secure? Test it! Check out The SSL Labs Test Site. I'm getting an A+ rating! The following assumes tengine, but nginx is exactly the same, just s/tengine/nginx/g;
     
    Need a certificate? OK - I highly recommend StartSSL. It's FREE! These guys will step you through the process by following the instructions on their site. If you have problems, the tech support via email is instantaneous and incredibly professional. My cert was the free variety, but if I ever upgrade, I will go to them because the support (to a non-paying customer no less) was so good.
     
    OK ... Make a file /etc/tengine/ssl.conf (or equiv for nginx):
    >#- Ports to listen on, all addresses, IPv6 and IPv4listen [::]:443 ssl;listen 443 ssl;#- Support current SSL standards and options onlyssl_session_cache shared:SSL:10m;ssl_session_timeout 10m;ssl_protocols TLSv1 TLSv1.1 TLSv1.2;ssl_prefer_server_ciphers on;ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";ssl_session_tickets off;ssl_stapling on;ssl_stapling_verify on;#- And some security related headersadd_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";add_header X-Frame-Options DENY;add_header X-Content-Type-Options nosniff;
    Now, go into your sites-available and in the server{} configuration for the site you want to include SSL, add these lines:
    >include /etc/tengine/ssl.conf;ssl_dhparam /etc/ssl/tengine/dhparam4096;ssl_trusted_certificate /etc/ssl/tengine/startssl_trust_chain.crt;ssl_certificate /etc/ssl/tengine/ssl-unified.crt;ssl_certificate_key /etc/ssl/tengine/ssl.key;
    Now, there are 4 files here for SSL in addition to the one we just included. Let's look at where they come from. First, you should have a certificate file (ssl.crt in the following), and a key for that file (private_ssl.key). The CRT begins with "-----BEGIN CERTIFICATE-----", but you will need to view this in vi, not less (less will try to decode many of these files). Your private key is password protected (the key is "-----BEGIN RSA PRIVATE KEY-----" followed by a line that says ENCRYPTED). Since you probably don't want to issue a password every time you start your server, let's fix that first.
    >openssl rsa -in private_ssl.key -out /etc/ssl/tengine/ssl.key
    Easy enough? And we have one of our lines done. 3 to go!
     
    The next is to create a chain of certificates back to the root. For StartSSL, you download their cert:
    >wget https://www.startssl.com/certs/class1/sha2/pem/sub.class1.server.sha2.ca.pem
    Then make the file you need with your cert and theirs. Here's your next 2 files!
    >cat ssl.crt sub.class1.server.sha2.ca.pem > /etc/ssl/tengine/ssl-unified.crtcp sub.class1.server.sha2.ca.pem /etc/ssl/tengine/startssl_trust_chain.crt
    Now, the final command for the final file:
    >openssl dhparam -out /etc/ssl/tengine/dhparam4096 4096
    4096 might be overkill, but 1024 is the minimum and you might as well go all out just in case 1024 gets broken next month!
     
    Be sure all these files are secure!
    >chmod 0600 /etc/ssl/tengine/*
    Delete originals, clean up, then restart tengine.
     
    Next I'll cover gzip compression, detecting mobile client, and joomla configuration. Any particular one anyone wants to see first?
  3. Trolling
    duncan.britton reacted to 666threesixes666 for a blog entry, winter is coming   
    sorry drobbins, winters coming, and this -23 Celsius shit drives me crazy, i have alot of time to think about things.
     
    my quest is to wake from recurring dreams, to the collective recurring dream people call reality.
     
    ok personal philosophy... im a pantheist, meaning i see nature as god, and science as the quest to know god. i am a very small part of nature therefore i am small part of god. my parents are my creator, and they are of nature. im observing what's right in front of me.....
     
    personal meaning of life.... the meaning of life to me is to create a better world than i was given for my children, and their childrens children. my work ethic is next to insane. ill work to the bone for zero pay to these ends. im a how and why kind of person, "because" is not a sufficient answer. i do acknowledge i do not know everything, and sometimes i have to accept "i dont know how it works but it does" as an answer.
     
    programmatic unbalanced equations with fractal recursion, of infinite loops, and applied mathematics.... just as a computer program can feed back in on its self and perpetually load my dreams consist of using applied mathematics to make this problem a real world problem. i want to harness the power of the infinite loop, that leads back to its starting point to give another power cycle.
     
    how this works, the chain on the right side is longer, and heavier than on the left. the equation is unbalanced, and feeds back into its self. its a natural fractal.
     
    https://www.youtube.com/watch?v=2QRKzwgG_-U
     
    this one is like swinging on a swing set, you pump, and relax at specific times... you accumulate more energy than you put into it. only a robot is doing the pumping...
     

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