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Created by voodoo on September 30, 2011 08:22:39    Last update: February 18, 2012 16:17:36
This iptables rule redirects all port 80 traffic from subnet 192.168.0.0/24 to 192.168.0.1 running HTTP proxy (say squid): /usr/sbin/iptables -t nat -A PREROUTING -s 192.168... Make any packets destined to port 3256 on firewall be NAT'ed to internal system server on port 80: iptables -t nat -I PREROUTING -s ! 192.168.2.0/24 ... To make internal web server work for clients from the internet, LAN and the firewall itself: Make all packets from the Internet going to port 80 on the firewall ( $INET_IP ) to be redirected (or DNAT'ed) to the internal HTTP server ( $HTTP_IP ): iptables -t nat -A PREROUTING --dst $INET_IP -p tc... SNAT the packets entering the firewall that are destined for $HTTP_IP (internal HTTP server) port 80 so that they...
Created by Fang on August 24, 2010 18:44:24    Last update: August 24, 2010 18:44:24
The tags XML transform tags apply XSLT to XML documents. The XML document may be specified as the doc attribute or enclosed as the body of the <x:transform> tag. Optional <x:param> tags may be used to specify parameters for the XSLT. <x:transform> Syntax: <x:transform doc="XMLDocument" xslt="XSLTStyle... or, include the XML document in the body: <x:transform xslt="XSLTStylesheet" [docSystem... Attributes: Name Dynamic? Type Description doc true String , Reader , javax.xml.transform.Source , org.w3c.dom.Document , or object exported by <x:parse> , <x:set> . Source XML document to be transformed. (If exported by <x:set> , it must correspond to a well-formed XML document, not a partial document.) xslt true String , Reader or javax.xml.transform.Source Transformation stylesheet as a String , Reader , or Source object. docSystemId true...
Created by Fang on August 19, 2010 18:32:28    Last update: August 19, 2010 18:32:28
The tags <x:parse> Parses an XML document. The document to be parsed can be specified by the doc attribute or enclosed as the body of the tag. The parsed document is exposed as the var attribute or the varDom attribute. When exposed as var , the type of the exposed object is implementation dependent; when exposed as varDom , the type of the exposed object is org.w3c.dom.Document . Objects exposed by var and varDom can both be used to set the context of an XPath expression. Syntax: <x:parse doc="XMLDocument" {var="var" [sco... or, put the XML document in the element body: <x:parse {var="var" [scope="page|request|s... Attributes: Name Dynamic? Type Description doc true String , Reader Source XML document to be parsed. systemId true String The...
Created by Fang on August 16, 2010 22:00:05    Last update: August 16, 2010 22:12:25
The tags <sql:update> Executes SQL INSERT , UPDATE , DELETE statements, or SQL DDL statements. Syntax: <sql:update sql="sqlUpdate" [dataSource="d... or, put the SQL within the element body: <sql:update [dataSource="dataSource"] [v... Attributes: Name Dynamic? Type Description sql true String SQL update statement. dataSource true javax.sql.DataSource or String Data source associated with the database to update. A String value represents a relative path to a JNDI resource or the parameters for the JDBC DriverManager class. var false String Name of the exported scoped variable for the result of the database update. The type of the scoped variable is java.lang.Integer . scope false String Scope of var. Defaults to "page". <sql:transaction> Establishes a transaction context for <sql:query> and <sql:update> subtags. Syntax: <sql:transaction [dataSource="dataSource"] ... where...
Created by Fang on August 16, 2010 21:44:41    Last update: August 16, 2010 22:01:46
The tags <sql:query> Queries a database. Syntax: <sql:query sql="sqlQuery" var="varName" [scope... or, put the query within the element body: <sql:query var="varName" [scope="{page|req... Attributes: Name Dynamic? Type Description sql true String SQL query statement. dataSource true javax.sql.DataSource or String Data source associated with the database to query. A String value represents a relative path to a JNDI resource or the JDBC parameters for the DriverManager class. maxRows true int The maximum number of rows to be included in the query result. If not specified, or set to -1, no limit on the maximum number of rows is enforced. startRow true int The returned Result object includes the rows starting at the specified index. The first row of the original query result set is at index...
Created by voodoo on July 11, 2009 15:14:55    Last update: July 29, 2010 22:45:48
cURL is a command line tool for transferring files with URL syntax. The main purpose and use for cURL is to automate unattended file transfers or sequences of operations. It's really easy to see HTTP headers with curl: C:\>curl --head http://www.google.com HTTP/1.0 ... or, headers and page together (dump headers to stdout): $ curl --dump-header - http://www.google.com HTTP/... Download openssl from openssl.org: curl http://www.openssl.org/source/openssl-0.9.6m.... C:\>curl --help Usage: curl [options...] <url> ...