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meta:playground [2013/10/16 22:24] (current)
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 +===== Introduction =====
 +
 +In this scenario a big area must be covered with Wi-Fi access and no Access Point alone can provide that kind of reachability. Three different wifi networks will be provided for diferent access levels. Traffic from these networks will be isolated and controlled by a central Linux box running Shorewall. A wired Ethernet backbone will carry traffic from the Access Points (in our example three AP are used, but can be more if necessary. Beware of air channel starvation). The encapsulation protocol will be OpenVPN with no cypher and that means the processing power for traffic encapsulation will be low (encryption can be enabled if required). The author has succesfully done a similar setup using 802.1q (VLANS) encapsulation. L2tp is a another reasonable alternative to try for encapsulation.
 +
 +The following is a diagram of the solution:
 +
 +
 +PICTURE HERE
 +
 +
 +==== Acess Point Configuration ====
 +
 +  * Flash OpenWRT Attitude Adjustment on your router(i've used the venerable tp-link 1043nd)
 +  * Connect it to internet and do "opkg install openvpn" from console
 +  * Setup date, timezone and password as you wish
 +  * Configure Networks (/etc/config/network) (Plan your addressing based on the previous diagram) <code>
 +config interface 'loopback'                                                   
 +        option ifname 'lo'                                                     
 +        option proto 'static'                                                 
 +        option ipaddr '127.0.0.1'                                             
 +        option netmask '255.0.0.0'                                             
 +                                                                               
 +config interface 'lan'                                                         
 +        option ifname 'eth0.1'                                                 
 +        option type 'bridge'                                                   
 +        option proto 'static'                                                 
 +        option netmask '255.255.255.0'                                         
 +        option ipaddr '192.168.1.3'                                           
 +        option dns '192.168.1.2'                                               
 +        option gateway '192.168.1.2'                                           
 +                                                                               
 +config switch                                                                 
 +        option name 'rtl8366rb'                                               
 +        option reset '1'                                                       
 +        option enable_vlan '1'                                                 
 +        option enable_vlan4k '1'                                               
 +                                                                               
 +config switch_vlan                                                             
 +        option device 'rtl8366rb'                                             
 +        option vlan '1'                                                       
 +        option ports '0 1 2 3 4 5t'                                           
 +                                                                               
 +config interface 'workers'                                                     
 +        option type 'bridge'                                                   
 +        option ifname 'tapWorkers'                                             
 +        option _orig_ifname 'tapWorkers wlan0-1'                               
 +        option _orig_bridge 'true'                                             
 +        option proto 'static'                                                 
 +        option ipaddr '192.168.2.2'                                           
 +        option netmask '255.255.255.0'                                         
 +                                                                               
 +                                                                               
 +config interface 'loopback'                                                   
 +        option ifname 'lo'                                                     
 +        option proto 'static'                                                 
 +        option ipaddr '127.0.0.1'                                             
 +        option netmask '255.0.0.0'                                             
 +                                                                               
 +config interface 'lan'                                                         
 +        option ifname 'eth0.1'                                                 
 +        option type 'bridge'                                                   
 +        option proto 'static'                                                 
 +        option netmask '255.255.255.0'                                         
 +        option ipaddr '192.168.1.3'                                           
 +        option dns '192.168.1.2'                                               
 +        option gateway '192.168.1.2'                                           
 +                                                                               
 +config switch                                                                 
 +        option name 'rtl8366rb'                                               
 +        option reset '1'                                                       
 +        option enable_vlan '1'                                                 
 +        option enable_vlan4k '1'                                               
 +                                                                               
 +config switch_vlan                                                             
 +        option device 'rtl8366rb'                                             
 +        option vlan '1'                                                       
 +        option ports '0 1 2 3 4 5t'                                           
 +                                                                               
 +config interface 'workers'                                                     
 +        option type 'bridge'                                                   
 +        option ifname 'tapWorkers'                                             
 +        option _orig_ifname 'tapWorkers wlan0-1'                               
 +        option _orig_bridge 'true'                                             
 +        option proto 'static'                                                 
 +        option ipaddr '192.168.2.2'                                           
 +        option netmask '255.255.255.0' 
 +
 +config interface 'guests'                                                     
 +        option type 'bridge'                                                   
 +        option proto 'static'                                                 
 +        option ifname 'tapGuests'                                             
 +        option ipaddr '192.168.3.2'                                           
 +        option netmask '255.255.255.0'
 +</code>
 +
 +  * Configure wireless (/etc/config/wireless). Access network is not tunneled, 'guests' goes to the unsecure zone and 'workers' to the secure zone. **Put your own SSID, MAC Address and PSK **<code>
 +config wifi-device 'radio0'
 +        option type 'mac80211'
 +        option macaddr '54:e6:fc:fb:a7:10'
 +        option hwmode '11ng'
 +        option htmode 'HT20'
 +        list ht_capab 'SHORT-GI-40'
 +        list ht_capab 'DSSS_CCK-40'
 +        option channel '6'
 +        option txpower '27'
 +        option country 'US'
 +        option distance '15'
 +
 +config wifi-iface
 +        option device 'radio0'
 +        option network 'lan'
 +        option mode 'ap'
 +        option encryption 'psk2'
 +        option key 'secretisssimo'
 +        option ssid 'SuperCompany (Access)'
 +
 +config wifi-iface
 +        option device 'radio0'
 +        option mode 'ap'
 +        option encryption 'psk2'
 +        option network 'workers'
 +        option key '123supersecret'
 +        option ssid 'SuperCompany (Workers)'
 +
 +config wifi-iface
 +        option device 'radio0'
 +        option mode 'ap'
 +        option encryption 'psk2'
 +        option ssid 'SuperCompany (Guests)'
 +        option network 'guests'
 +        option key 'welcomeguests'
 +
 +
 +</code>
 + 
 +  * Disable DHCP (/etc/config/dhcp). The linux box is the global DHCP server here.<code>
 +config dnsmasq
 +        option domainneeded '1'
 +        option boguspriv '1'
 +        option filterwin2k '0'
 +        option localise_queries '1'
 +        option rebind_protection '1'
 +        option rebind_localhost '1'
 +        option local '/lan/'
 +        option domain 'lan'
 +        option expandhosts '1'
 +        option nonegcache '0'
 +        option authoritative '1'
 +        option readethers '1'
 +        option leasefile '/tmp/dhcp.leases'
 +        option resolvfile '/tmp/resolv.conf.auto'
 +
 +config dhcp 'lan'
 +        option interface 'lan'
 +        option ignore '1'
 +</code>
 +
 +  * Disable Firewall (config/firewall). There isn't any reason to filter traffic in the Access Point <code>
 +config defaults
 +        option input 'ACCEPT'
 +        option output 'ACCEPT'
 +        option forward 'ACCEPT'
 +
 +config include
 +        option path '/etc/firewall.user'
 +</code>
 +
 +  * Configure OpenVPN (config/openvpn) y setup claves y cosas en /etc/openvpn
 +
 +===== Basic text formatting =====
 +
 +DokuWiki supports **bold**, //italic//, __underlined__ and ''monospaced'' texts. Of course you can **__//''combine''//__** all these.
 +
 +  DokuWiki supports **bold**, //italic//, __underlined__ and ''monospaced'' texts.
 +  Of course you can **__//''combine''//__** all these.
 +
 +You can use <sub>subscript</sub> and <sup>superscript</sup>, too.
 +
 +  You can use <sub>subscript</sub> and <sup>superscript</sup>, too.
 +
 +You can mark something as <del>deleted</del> as well.
 +
 +  You can mark something as <del>deleted</del> as well.
 +
 +**Paragraphs** are created from blank lines. If you want to **force a newline** without a paragraph, you can use two backslashes followed by a whitespace or the end of line.
 +
 +This is some text with some linebreaks\\ Note that the
 +two backslashes are only recognized at the end of a line\\
 +or followed by\\ a whitespace \\this happens without it.
 +
 +  This is some text with some linebreaks\\ Note that the
 +  two backslashes are only recognized at the end of a line\\
 +  or followed by\\ a whitespace \\this happens without it.
 +
 +You should use forced newlines only if really needed.
 +
 +===== Links =====
 +
 +DokuWiki supports multiple ways of creating links.
 +
 +==== External ====
 +
 +External links are recognized automagically: http://www.google.com or simply www.google.com - You can set the link text as well: [[http://www.google.com|This Link points to google]]. Email addresses like this one: <andi@splitbrain.org> are recognized, too.
 +
 +  DokuWiki supports multiple ways of creating links. External links are recognized
 +  automagically: http://www.google.com or simply www.google.com - You can set
 +  link text as well: [[http://www.google.com|This Link points to google]]. Email
 +  addresses like this one: <andi@splitbrain.org> are recognized, too.
 +
 +==== Internal ====
 +
 +Internal links are created by using square brackets. You can either just give a [[wiki:pagename]] or use an additional [[wiki:pagename|link text]].
 +
 +  Internal links are created by using square brackets. You can either just give
 +  a [[wiki:pagename]] or use an additional [[wiki:pagename|link text]].
 +
 +[[doku>pagename|Wiki pagenames]] are converted to lowercase automatically, special characters are not allowed.
 +
 +You can use [[some:namespaces]] by using a colon in the pagename.
 +
 +  You can use [[some:namespaces]] by using a colon in the pagename.
 +
 +For details about namespaces see [[doku>namespaces]].
 +
 +Linking to a specific section is possible, too. Just add the section name behind a hash character as known from HTML. This links to [[wiki:syntax#internal|this Section]].
 +
 +  This links to [[wiki:syntax#internal|this Section]].
 +
 +Notes:
 +
 +  * Links to [[meta:syntax|existing pages]] are shown in a different style from [[wiki:nonexisting]] ones.
 +  * DokuWiki does not use [[wp>CamelCase]] to automatically create links by default, but this behavior can be enabled in the [[doku>config]] file. Hint: If DokuWiki is a link, then it's enabled.
 +  * When a section's heading is changed, its bookmark changes, too. So don't rely on section linking too much.
 +
 +==== Interwiki ====
 +
 +DokuWiki supports [[doku>Interwiki]] links. These are quick links to other Wikis. For example this is a link to Wikipedia's page about Wikis: [[wp>Wiki]].
 +
 +  DokuWiki supports [[doku>Interwiki]] links. These are quick links to other Wikis.
 +  For example this is a link to Wikipedia's page about Wikis: [[wp>Wiki]].
 +
 +
 +==== Windows Shares ====
 +
 +Windows shares like [[\\server\share|this]] are recognized, too. Please note that these only make sense in a homogeneous user group like a corporate [[wp>Intranet]].
 +
 +  Windows Shares like [[\\server\share|this]] are recognized, too.
 +
 +Notes:
 +
 +  * For security reasons direct browsing of windows shares only works in Microsoft Internet Explorer per default (and only in the "local zone").
 +  * For Mozilla and Firefox it can be enabled through the config option [[http://www.mozilla.org/quality/networking/docs/netprefs.html#file|security.checkloaduri]] but this is not recommended.
 +  * See [[dokubug>151]] for more info.
 +
 +==== Image Links ====
 +
 +You can also use an image to link to another internal or external page by combining the syntax for links and [[:wiki#images_and_other_files|images]] (see below) like this:
 +
 +  [[http://www.php.net|{{wiki:dokuwiki-128.png}}]]
 +
 +[[http://www.php.net|{{wiki:dokuwiki-128.png}}]]
 +
 +Please note: The image formatting is the only formatting syntax accepted in link names.
 +
 +The whole [[:wiki#images_and_other_files|image]] and [[:wiki#links|link]] syntax is supported (including image resizing, internal and external images and URLs and interwiki links).
 +
 +===== Footnotes =====
 +
 +You can add footnotes ((This is a footnote)) by using double parentheses.
 +
 +  You can add footnotes ((This is a footnote)) by using double parentheses.
 +
 +===== Sectioning =====
 +
 +You can use up to five different levels of headlines to structure your content. If you have more than three headlines, a table of contents is generated automatically -- this can be disabled by including the string ''<nowiki>~~NOTOC~~</nowiki>'' in the document.
 +
 +
 +
 +
 +==== Headline Level 3 ====
 +=== Headline Level 4 ===
 +== Headline Level 5 ==
 +
 +  ==== Headline Level 3 ====
 +  === Headline Level 4 ===
 +  == Headline Level 5 ==
 +
 +By using four or more dashes, you can make a horizontal line:
 +
 +----
 +
 +===== Images and other files =====
 +
 +You can include external and internal [[doku>images]] with curly brackets. Optionally you can specify the size of them.
 +
 +Real size:                        {{wiki:dokuwiki-128.png}}
 +
 +Resize to given width:            {{wiki:dokuwiki-128.png?50}}
 +
 +Resize to given width and height((when the aspect ratio of the given width and height doesn't match that of the image, it will be cropped to the new ratio before resizing)): {{wiki:dokuwiki-128.png?200x50}}
 +
 +Resized external image:          {{http://de3.php.net/images/php.gif?200x50}}
 +
 +  Real size:                        {{wiki:dokuwiki-128.png}}
 +  Resize to given width:            {{wiki:dokuwiki-128.png?50}}
 +  Resize to given width and height: {{wiki:dokuwiki-128.png?200x50}}
 +  Resized external image:          {{http://de3.php.net/images/php.gif?200x50}}
 +
 +
 +By using left or right whitespaces you can choose the alignment.
 +
 +{{ wiki:dokuwiki-128.png}}
 +
 +{{wiki:dokuwiki-128.png }}
 +
 +{{ wiki:dokuwiki-128.png }}
 +
 +  {{ wiki:dokuwiki-128.png}}
 +  {{wiki:dokuwiki-128.png }}
 +  {{ wiki:dokuwiki-128.png }}
 +
 +Of course, you can add a title (displayed as a tooltip by most browsers), too.
 +
 +{{ wiki:dokuwiki-128.png |This is the caption}}
 +
 +  {{ wiki:dokuwiki-128.png |This is the caption}}
 +
 +If you specify a filename (external or internal) that is not an image (''gif, jpeg, png''), then it will be displayed as a link instead.
 +
 +For linking an image to another page see [[:wiki#Image Links]] above.
 +
 +===== Lists =====
 +
 +Dokuwiki supports ordered and unordered lists. To create a list item, indent your text by two spaces and use a ''*'' for unordered lists or a ''-'' for ordered ones.
 +
 +  * This is a list
 +  * The second item
 +    * You may have different levels (using 4 spaces instead of 2)
 +  * Another item
 +
 +  - The same list but ordered
 +  - Another item
 +    - Just use indention for deeper levels
 +  - That's it
 +
 +<code>
 +  * This is a list
 +  * The second item
 +    * You may have different levels
 +  * Another item
 +
 +  - The same list but ordered
 +  - Another item
 +    - Just use indention for deeper levels
 +  - That's it
 +</code>
 +
 +===== Smileys =====
 +
 +DokuWiki converts commonly used [[wp>emoticon]]s to their graphical equivalents. More smileys can be placed in the ''smiley'' directory and configured in the ''conf/smileys.conf'' file. Here is an overview of Smileys included in DokuWiki.
 +
 +  * 8-) %%  8-)  %%
 +  * 8-O %%  8-O  %%
 +  * :-( %%  :-(  %%
 +  * :-) %%  :-)  %%
 +
 +  * =)  %%  =)  %%
 +  * :-/ %%  :-/  %%
 +  * :-\ %%  :-\  %%
 +  * :-? %%  :-?  %%
 +  * :-D %%  :-D  %%
 +  * :-P %%  :-P  %%
 +  * :-O %%  :-O  %%
 +  * :-X %%  :-X  %%
 +  * :-| %%  :-|  %%
 +  * ;-) %%  ;-)  %%
 +  * ^_^ %%  ^_^  %%
 +  * :?: %%  :?:  %%
 +  * :!: %%  :!:  %%
 +  * LOL %%  LOL  %%
 +  * FIXME %%  FIXME %%
 +  * DELETEME %% DELETEME %%
 +
 +===== Icons =====
 +[[meta:icons:tango:start|Here]] are some icons that can be used in the wiki.
 +
 +===== Typography =====
 +
 +[[wiki:dokuwiki]] can convert simple text characters to their typographically correct entities. Here is an example of recognized characters.
 +
 +-> <- <-> => <= <=> >> << -- --- 640x480 (c) (tm) (r)
 +"He thought 'It's a man's world'..."
 +
 +<code>
 +-> <- <-> => <= <=> >> << -- --- 640x480 (c) (tm) (r)
 +"He thought 'It's a man's world'..."
 +</code>
 +
 +Please note: These conversions can be turned off through a [[doku>config:typography|config option]] and a [[doku>entities|pattern file]].
 +
 +===== Quoting =====
 +
 +Some times you want to mark some text to show it's a reply or comment. You can use the following syntax:
 +
 +  I think we should do it
 + 
 +  > No we shouldn't
 + 
 +  >> Well, I say we should
 + 
 +  > Really?
 + 
 +  >> Yes!
 + 
 +  >>> Then lets do it!
 +
 +I think we should do it
 +
 +> No we shouldn't
 +
 +>> Well, I say we should
 +
 +> Really?
 +
 +>> Yes!
 +
 +>>> Then lets do it!
 +FIXME
 +
 +===== Tables =====
 +
 +DokuWiki supports a simple syntax to create tables.
 +
 +^ Heading 1      ^ Heading 2      ^ Heading 3          ^
 +| Row 1 Col 1    | Row 1 Col 2    | Row 1 Col 3        |
 +| Row 2 Col 1    | some colspan (note the double pipe) ||
 +| Row 3 Col 1    | Row 2 Col 2    | Row 2 Col 3        |
 +
 +Table rows have to start and end with a ''|'' for normal rows or a ''^'' for headers.
 +
 +  ^ Heading 1      ^ Heading 2      ^ Heading 3          ^
 +  | Row 1 Col 1    | Row 1 Col 2    | Row 1 Col 3        |
 +  | Row 2 Col 1    | some colspan (note the double pipe) ||
 +  | Row 3 Col 1    | Row 2 Col 2    | Row 2 Col 3        |
 +
 +To connect cells horizontally, just make the next cell completely empty as shown above. Be sure to have always the same amount of cell separators!
 +
 +Vertical tableheaders are possible, too.
 +
 +|              ^ Heading 1            ^ Heading 2          ^
 +^ Heading 3    | Row 1 Col 2          | Row 1 Col 3        |
 +^ Heading 4    | no colspan this time |                    |
 +^ Heading 5    | Row 2 Col 2          | Row 2 Col 3        |
 +
 +As you can see, it's the cell separator before a cell which decides about the formatting:
 +
 +  |              ^ Heading 1            ^ Heading 2          ^
 +  ^ Heading 3    | Row 1 Col 2          | Row 1 Col 3        |
 +  ^ Heading 4    | no colspan this time |                    |
 +  ^ Heading 5    | Row 2 Col 2          | Row 2 Col 3        |
 +
 +Note: Vertical spans (rowspan) are not possible.
 +
 +You can align the table contents, too. Just add at least two whitespaces at the opposite end of your text: Add two spaces on the left to align right, two spaces on the right to align left and two spaces at least at both ends for centered text.
 +
 +^          Table with alignment          ^^^
 +|        right|    center    |left          |
 +|left          |        right|    center    |
 +| xxxxxxxxxxxx | xxxxxxxxxxxx | xxxxxxxxxxxx |
 +
 +This is how it looks in the source:
 +
 +  ^          Table with alignment          ^^^
 +  |        right|    center    |left          |
 +  |left          |        right|    center    |
 +  | xxxxxxxxxxxx | xxxxxxxxxxxx | xxxxxxxxxxxx |
 +
 +===== Non-parsed Blocks =====
 +
 +You can include non-parsed blocks into your documents by either indenting them by at least two spaces (like used for the previous examples) or by using the tags ''code'' or ''file''.
 +
 +<code>
 +This is preformatted code all spaces are preserved: like              <-this
 +</code>
 +
 +<file>
 +This is pretty much the same, but you could use it to show that you quoted a file. 
 +</file>
 +
 +To let the parser ignore an area completely (ie. do no formatting on it), enclose the area either with ''nowiki'' tags or even simpler, with double percent signs ''<nowiki>%%</nowiki>''.
 +
 +<nowiki>
 +This is some text which contains addresses like this: http://www.splitbrain.org and **formatting**, but nothing is done with it.
 +</nowiki>
 +
 +See the source of this page to see how to use these blocks.
 +
 +===== Syntax Highlighting =====
 +
 +[[wiki:dokuwiki]] can highlight sourcecode, which makes it easier to read. It uses the [[http://qbnz.com/highlighter/|GeSHi]] Generic Syntax Highlighter -- so any language supported by GeSHi is supported. The syntax is the same like in the code block in the previous section, but this time the name of the used language is inserted inside the tag. Eg. ''<nowiki><code java></nowiki>''.
 +
 +<code java>
 +/**
 + * The HelloWorldApp class implements an application that
 + * simply displays "Hello World!" to the standard output.
 + */
 +class HelloWorldApp {
 +    public static void main(String[] args) {
 +        System.out.println("Hello World!"); //Display the string.
 +    }
 +}
 +</code>
 +
 +The following language strings are currently recognized: //abap, actionscript-french, actionscript, actionscript3, ada, apache, applescript, asm, asp, autoit, avisynth, bash, basic4gl, bf, blitzbasic, bnf, boo, c, c_mac, caddcl, cadlisp, cfdg, cfm, cil, cobol, cpp, cpp-qt, csharp, css, d, dcs, delphi, diff, div, dos, dot, eiffel, email, fortran, freebasic, genero, glsl, gml, gnuplot, groovy, gettext, haskell, hq9plus, html, idl, ini, inno, intercal, io, java5, java, javascript, kixtart, klonec, klonecpp, latex, lisp, locobasic, lolcode, lotusformulas, lotusscript, lscript, lsl2, lua, m68k, make, matlab, mirc, modula3, mpasm, mxml, mysql, nsis, oberon2, objc, ocaml-brief, ocaml, oobas, oracle8, oracle11, pascal, perl, per, php-brief, php, pic16, pixelbender, plsql, povray, powershell, progress, prolog, providex, python, qbasic, rails, rebol, reg, robots, ruby, sas, scala, scheme, scilab, sdlbasic, smalltalk, smarty, sql, tcl, teraterm, text, thinbasic, tsql, typoscript, vbnet, vb, verilog, vhdl, vim, visualfoxpro, visualprolog, whitespace, winbatch, xml, xorg_conf, xpp, z80//
 +
 +
 +===== RSS/ATOM Feed Aggregation =====
 +[[wiki:dokuwiki]] can integrate data from external XML feeds. For parsing the XML feeds, [[http://simplepie.org/|SimplePie]] is used. All formats understood by SimplePie can be used in DokuWiki as well. You can influence the rendering by multiple additional space separated parameters:
 +
 +^ Parameter  ^ Description ^
 +| any number | will be used as maximum number items to show, defaults to 8 |
 +| reverse    | display the last items in the feed first |
 +| author    | show item authors names |
 +| date      | show item dates |
 +| description| show the item description. If [[doku>config:htmlok|HTML]] is disabled all tags will be stripped |
 +| //n//[dhm] | refresh period, where d=days, h=hours, m=minutes. (e.g. 12h = 12 hours). |
 +
 +The refresh period defaults to 4 hours. Any value below 10 minutes will be treated as 10 minutes. [[wiki:dokuwiki]] will generally try to supply a cached version of a page, obviously this is inappropriate when the page contains dynamic external content. The parameter tells [[wiki:dokuwiki]] to re-render the page if it is more than //refresh period// since the page was last rendered.
 +
 +**Example:**
 +
 +  {{rss>http://slashdot.org/index.rss 5 author date 1h }}
 +
 +{{rss>http://slashdot.org/index.rss 5 author date 1h }}
 +
 +
 +===== Embedding HTML and PHP =====
 +
 +You can embed raw HTML or PHP code into your documents by using the ''html'' or ''php'' tags like this:
 +<code>
 +<html>
 +This is some <span style="color:red;font-size:150%;">inline HTML</span>
 +</html>
 +<HTML>
 +<p style="border:2px dashed red;">And this is some block HTML</p>
 +</HTML>
 +</code>
 +
 +<html>
 +This is some <span style="color:red;font-size:150%;">inline HTML</span>
 +</html>
 +<HTML>
 +<p style="border:2px dashed red;">And this is some block HTML</p>
 +</HTML>
 +
 +<code>
 +<php>
 +echo 'A logo generated by PHP:';
 +echo '<img src="' . $_SERVER['PHP_SELF'] . '?=' . php_logo_guid() . '" alt="PHP Logo !" />';
 +echo '(generated inline HTML)';
 +</php>
 +<PHP>
 +echo '<table class="inline"><tr><td>The same, but inside a block level element:</td>';
 +echo '<td><img src="' . $_SERVER['PHP_SELF'] . '?=' . php_logo_guid() . '" alt="PHP Logo !" /></td>';
 +echo '</tr></table>';
 +</PHP>
 +</code>
 +
 +<php>
 +echo 'A logo generated by PHP:';
 +echo '<img src="' . $_SERVER['PHP_SELF'] . '?=' . php_logo_guid() . '" alt="PHP Logo !" />';
 +echo '(inline HTML)';
 +</php>
 +<PHP>
 +echo '<table class="inline"><tr><td>The same, but inside a block level element:</td>';
 +echo '<td><img src="' . $_SERVER['PHP_SELF'] . '?=' . php_logo_guid() . '" alt="PHP Logo !" /></td>';
 +echo '</tr></table>';
 +</PHP>
 +
 +**Please Note**: HTML and PHP embedding is disabled by default in the configuration. If disabled, the code is displayed instead of executed.
 +
 +===== Control Macros =====
 +
 +Some syntax influences how DokuWiki renders a page without creating any output it self. The following control macros are availble:
 +
 +^ Macro          ^ Description |
 +| %%~~NOTOC~~%%  | If this macro is found on the page, no table of contents will be created |
 +| %%~~NOCACHE~~%% | DokuWiki caches all output by default. Sometimes this might not be wanted (eg. when the %%<php>%% syntax above is used), adding this macro will force DokuWiki to rerender a page on every call |
 +
 +===== Syntax Plugins =====
 +
 +DokuWiki's syntax can be extended by [[doku>plugins|Plugins]]. How the installed plugins are used is described on their appropriate description pages. The following syntax plugins are available in this particular DokuWiki installation:
 +
 +~~INFO:syntaxplugins~~
 +
 +{{page>about}}
 +

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meta/playground.txt · Last modified: 2013/10/16 22:24 (external edit)