Anatoliy Belsky - Web

Trick your blog to act like a Wordpress one

nospam@example.com (Anatoliy Belsky) — Mon, 07 May 2012 19:37:23 +0200

Blogging is my little hobbyhorse, however not big enough to excite me. Nevertheless sometimes you feel challenged when some social networks linking professionals in (yes, I'm pointing the finger ) give a syndication possibility for wordpress only. Just as the real thing is going on in the background is an RSS feed exchange, not more and not less.

Why would one do that obviously half baked thing limiting the RSS syndication to Wordpress only? I don't know, probably it's just politics and therefore the answer isn't really interesting. A more interesting approach would be a possibility to not to play by that rules. And here it is - after a couple of hours playing around I wrote a simple wordpress gateway for my blog.

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Serendipity meets Varnish

nospam@example.com (Anatoliy Belsky) — Thu, 13 Oct 2011 22:24:30 +0200

I've been using Serendipity for a couple of years and really love it now. But sometimes I wish it could be faster. Different servers tell a difference, but an average generation time for example for one category listing with 15 entries takes about 5 seconds or more. So I couldn't wait any longer, since I've learned Varnish Cache, to toggle it between Serendipity and the end user. Of course, Varnish would limit some blogging features, but the benefits will be worth of that. Sounds interesting? So this article is for you.

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SquirrelMail Change Password Plugin

nospam@example.com (Anatoliy Belsky) — Sun, 02 Oct 2011 12:17:38 +0200

A couple of years ago I've shared my expierience about how to setup virtual mail hosting with Postfix and Dovecot. Some time ago I needed to make that accessible via Web. So, a webmail.

After trying a couple of engines I've decided in favour of SquirrelMail. This worked like a charm with SSL, etc. so the full mailing functionality was available just out of the box. The one thing I was still missing was a possibility to change password. There are already several plugins to achieve the goal, for instance when logging in over LDAP, but nothing could really fit for me. That's because the maildir setup I'm using is non standard. Luckily, the SquirrelMail API is simple and just well documented, so I was able to write a custom change password plugin very fast.

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Varnish Cache now for PHP and from PHP

nospam@example.com (Anatoliy Belsky) — Tue, 23 Aug 2011 22:34:58 +0200

There is a new PHP extension I've written to work with Varnish. The extension allows interaction from within a PHP script with a running Varnish instance. For now there is a basic useful functionality such as ban URLs or set/get Varnish configuration. There will be more with the time. For now I would give a couple of examples for the extension usage, as there is not really any docs for the extension here.
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Using great Geonames database for geographical data handling

nospam@example.com (Anatoliy Belsky) — Thu, 03 Jun 2010 13:57:19 +0200

This time I needed some geographical data evaluation for one of my current projects. The data used to be opensource and as possible qualitative and complete. After spending some time in front of the famous search engine window there was a solution:

http://www.geonames.org/

That's the first sentence from the site:

The GeoNames geographical database covers all countries and contains over eight million placenames that are available for download free of charge.

Geonames is used by number of sites. Besides data it has also web services and code libraries in many programming languages to access them.
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Making server side playlist with PHP

nospam@example.com (Anatoliy Belsky) — Thu, 02 Oct 2008 19:36:35 +0200

Hi again,

whole last week I was mad about hearing music. I've heared tons of mp3's and radio stations over the internet. After a couple of days hearing music at work and at home I was really bored with creating and syncronizing playlists/files. Based on this, I came to the idea to make an online playlist which I would must update only one time and in one place and it would be accessible from anywhere. The idea was easy brougth out with PHP. So just a light reading for you:

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Domains avaliability checker

nospam@example.com (Anatoliy Belsky) — Wed, 12 Mar 2008 22:44:06 +0100

About a month ago I've written a simple domain checker, which is using whois.net to get the domains availiable. The main goal was to find free 3-symbols domains.

BASH:

#!/bin/sh 
 
if [ $# -lt 1 ]
then
    echo "usage: `basename $0` extension
Check domains avaliability
 
examples:
`basename $0` com
";
    exit 2;
fi
 
EXT=$1;
LAST_FILENAME=/tmp/dc_$USER$EXT.last
 
if [ -f "$LAST_FILENAME" ]; then LAST_DOMAIN=`cat $LAST_FILENAME`; fi 
 
for DOMAIN in {{0..9},{a..z},-}{{0..9},{a..z},-}{{0..9},{a..z},-}
do
    if [ "$DOMAIN" \< "$LAST_DOMAIN" ]; then continue; fi
 
    trap "echo $DOMAIN > $LAST_FILENAME;exit;" SIGHUP SIGINT SIGTERM
 
    STATUS_STRING=`wget -qO - http://www.whois.net/whois_new.cgi\?d\=$DOMAIN\&tld\=$EXT | grep 'Status'`
 
    echo "$STATUS_STRING" | grep 'free' && 
    echo "$DOMAIN.$EXT" >> ~/domains_found_$EXT.txt && 
    echo "the domain is free: $DOMAIN.$EXT" | mail -c my@mail.com -s "free domain" other@mail.com
 
    sleep 7
 
done

The thing is very simple and the results can be kept on. Additionally it sends mail messages about each found domain. Lets see, what it brought for the .de domains ( about 9000 free domains was found )
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I know the future weather

nospam@example.com (Anatoliy Belsky) — Sun, 23 Dec 2007 23:16:11 +0100

A simply and cool script for the weather forecast. May be even correct

.. thanks to Weather::Underground perl module

PERL:

#!/usr/bin/perl
use Weather::Underground;

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Stop image hotlinking with Perl

nospam@example.com (Anatoliy Belsky) — Sun, 23 Dec 2007 21:04:48 +0100

Sometimes there are things, which can bring everyone to the rage accumulation. For example if traffic of the server is exceeded because of hotlinking and it's measured at least in hundreds of megabytes. | So, for me this is only a story about someone else because I'm always using the following script, if the traffic of the server is not unlimited. I've used Perl to convert or resize images, because according my measurements Perl was doing this at least twice as fast as PHP and more qualitatively as PHP (this concerns anyhow PHP4). Only the one weakness can prevent you from using this script - it works with HTTP_REFERER server variable and since some browsers, firewalls or proxies for any reasons don't sending this field to the webserver, you can punish innocent people, who want only to see your images. But the advantages are evident - you can place your images out of the web space and show them only if they has been called from your web site. Lets go on.
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