Big Qmail Clusters

Udgivet den november 8, 2005 af mike

http://sourceforge.net/docman/display_doc.php?docid=18802&group_id=85937

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Linux Autodetect Software Raid

Udgivet den oktober 30, 2005 af Brian Lund Klint 
gamle howto deprecated, min nye forklarer meget mere:
http://wiki.kaspersandberg.com/doku.php?id=howtos:softwareraid
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mod_proxy config

Udgivet den oktober 22, 2005 af black

<VirtualHost thor.btworld.dk>
ServerName thor.btworld.dk
DocumentRoot /var/www/thor_redirect/htdocs
ProxyPass /samurize/ http://thor.btworld.dk/samurize/
ProxyRequests Off
</VirtualHost>

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Billedredigering med imagemagick

Udgivet den oktober 12, 2005 af mike

Rotate pictures?

mogrify -rotate 90/180 */001.jpg

Resizing picture
mogrify -size 120×120 -resize 120×120 +profile “*” *.jpg

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putty tunnels from system tray

Udgivet den oktober 9, 2005 af black

This is how to connect some ssh forwarded ports without having any unused putty windows in the taskbar.

First download and install putty and configure pageant to start with windows.
(use the installer package, not the standalone putty.exe)
Make som keyfiles for authentication.

Now, the tunnel can be established by using plink, that comes with putty.
plink.exe -ssh -batch -l black -L 2401:10.0.3.129:2401 -L 25:10.0.3.129:25 -L 143:10.0.3.129:143 -N munin.btworld.dk

Now this nice little program, will send all output from the ssh session to stdout, which we can catch with our own little C# program, that minimizes to tray.

(code for C# program will be uploaded when I’m done)

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C# write XML to stream with XmlDocument

Udgivet den september 8, 2005 af black 
Stream outputStream = new MemoryStream();
XmlDocument doc = new XmlDocument();

XmlElement root = doc.CreateElement("packet");
XmlElement type = doc.CreateAttribute("type");
if (this.request)
  type.Value = "request";
else
  type.Value = "response";

root.AppendChild(type);

XmlElement callElement = doc.CreateElement("call");
XmlAttribute funcAttr = doc.CreateAttribute("func");
funcAttr.Value = this.func;
callElement.AppendChild(funcAttr);
root.AppendChild(call);

XmlElement errElement = doc.CreateElement("error");
XmlAttribute noAttr = doc.CreateAttribute("no");
noAttr.Value = this.errorNumber;
XmlAttribute msgAttr = doc.CreateAttribute("msg");
msgAttr.Value = this.errorMessage;
errElement.AppendChild(noAttr);
errElement.AppendChild(msgAttr);
root.AppendChild(errElement);

XmlElement[] parameterList = new XmlElement[parameterNames.Count];
for (int i = 0; i < this.parameterNames.Count; i++)
{
  parameterList[i] = doc.CreateElement("parameter");
  XmlAttribute nameAttr = doc.CreateAttribute("name");
  nameAttr.Value = parameterNames[i];
  XmlAttribute valueAttr = doc.CreateAttribute("value");
  valueAttr.Value = parameterValues[i];
  parameterList[i].AppendChild(nameAttr);
  parameterList[i].AppendChild(valueAttr);
  root.AppendChild(parameterList[i]);
}

doc.AppendChild(root);
XmlWriter writer = new System.Xml.XmlTextWriter(outputStream, System.Text.Encoding.UTF8);
doc.WriteTo(writer);

 

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how to edit strings with mysql

Udgivet den september 4, 2005 af black

Mysql replace is nice

UPDATE `users` SET homedir = REPLACE(homedir, ‘/home/daemons’, ‘/home/vmail/’), maildir = REPLACE(maildir, ‘/home/daemons’, ‘/home/vmail/’);

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how to add a user to a group

Udgivet den september 4, 2005 af black

This is a nice way to add a user to a new group,
from any script or other non-interactive metod:

usermod -G $(id -nG root | sed -e “s/ /,/g”),vmail root

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proftpd bandwith limit

Udgivet den juni 30, 2005 af black 
<Directory />
  AllowOverwrite                on
  TransferRate                  APPE,RETR,STOR,STOU 25:1024 user !black
</Directory>

limits to 25KB/s with a 1024KB fullspeed limit, excludes the user black

 

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PHP XML Parsing

Udgivet den juni 26, 2005 af mike 
<pre>

<?php
$file = "artikel.xml";
$depth = array();

function startElement($parser, $name, $attrs)
{
   global $depth;
   for ($i = 0; $i < $depth[$parser]; $i++) {
       echo "  ";
   }
   echo "$name ";

        if (sizeof($attrs))
        {
                while (list($k,$v) = each($attrs))
                {
//                      print "$k -> $v  --";
                }
                print $attrs['AUTHOR'];
        }

   echo "\n";
   $depth[$parser]++;
}

function endElement($parser, $name)
{
   global $depth;
   $depth[$parser]--;
}

$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
if (!($fp = fopen($file, "r"))) {
   die("could not open XML input");
}

while ($data = fread($fp, 4096)) {
   if (!xml_parse($xml_parser, $data, feof($fp))) {
       die(sprintf("XML error: %s at line %d",
                   xml_error_string(xml_get_error_code($xml_parser)),
                   xml_get_current_line_number($xml_parser)));
   }
}
xml_parser_free($xml_parser);
?>

</pre>
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