Just in addition to my recent post:
telnet localhost 2812
HTTP/1.0 408 Request Timeout
Date: Thu, 30 Dec 2010 11:51:43 GMT
Server: monit 5.2.3
Content-Type: text/html
Connection: close
<html><head><title>Request Timeout</title></head><body bgcolor=#FFFFFF>
<h2>Request Timeout</h2>Time out when handling the Request
<p><hr><a href="" href="http://mmonit.com/monit/">http://mmonit.com/monit/'><font size=-1>monit 5.2.3</font></a></body></html>
Connection closed by foreign host
netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
...
ls -l /etc/monitrc
-rw------- 1 root root 10714 Dec 30 03:06 /etc/monitrc
ls -l /usr/bin/monit
-rwx------ 1 root root 433604 Dec 30 03:26 /usr/bin/monit
May be it'll bring some more light on the problem.
Thank you again, Alexander.