HTTP Check Port 80 with the Telnet
You can check your webserver on HTTP port 80 with the
following telnet command:
Open a command line and type
If your server is online a test connection will be established on port 80
(HTTP). Now you can type a GET command. The server will answer with
an output like this:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<H1>Method Not Implemented</H1>
get to /index
.html not supported.<P>
Invalid method in request get<P>
Connection to host lost.
The better way to Check Port 80 (free
you would like to check your Webserver at regular intervals, you can
use SLCheck. SLCheck is a command line
utility that connects to the Webserver
and checks the answer. Batch files can be executed in dependance of
the result. Try the following command:
-p 80 -a www.your-server.com
-r "HTTP/1.1 200 OK"
In dependence of the returned answer string you can execute a batch
file for further actions, e.g. to send an alarm notification. All the
results are logged in a logfile.
You can monitor your webserver by running SLCheck as a scheduled
task, e.g. once a minute.