nutch - Alexander Dick

Recrawl script for nutch

Note: The information contained in this post may be outdated! Here’s a small shell script for doing the recrawl process in nutch. You might have to change certain lines because I did some customizations, but it should work for you too 🙂

Blocking web crawlers on lighttpd

Note: The information contained in this post may be outdated! Nutch did ignore my robots.txt (for whatever reason, I was unable to figure out why), so I had to find another way to forbid those directories for the crawler. I finally came up with this neat piece of config for lighty:

$HTTP["useragent"] =~ "(Nutch|Google|FooBar)" {
    $HTTP["url"] =~ "^(/one/|/two/|/three/)" {
        url.access-deny = ( "" )
    }
}

$HTTP["useragent"] =~ "(Nutch|Google|FooBar)" {

$HTTP["url"] =~ "^(/one/|/two/|/three/)" {

url.access-deny = ( "" )

}

– throws an […]

Nutch – meta description in search results

In order to get our meta descriptions displayed in the results we need to write a plugin that extends 2 different extension points.

Nutch – prevent sections of a website from being indexed

I thought an ideal solution would be telling nutch to ignore specific sections. A good and common practice doing this kind of stuff is creating HTML comment tags.