"Connection closed by foreign host." Tomcat5 doesn't answer (Fedora Core 5, yum install)

[David Iglesias Teixeira <da...@gdtic.es>]

Hi all,

I've been trying to setup a FC5 box with tomcat5. I followed a couple of 
tutorials around, and made it quite effortlessly with YUM in my test 
environment.

When I tried to do the same in my production server, I can't seem to be 
able to make tomcat "listen" in the 8080 port. When connecting from the 
outside of the machine, I keep getting "Firefox no puede establecer una 
conexión con el servidor en X.Y.Z.T:8080." (Something like: Firefox 
couldn't stablish a connection with the server XYZT:8080). IE also 
fails, so I'm afraid it's a server-side issue (that's why I'm posting here).

After a port-scan in both machines, I can see that "test" is listening 
on port 8080, but "prod" is not, but I don't know if it's a matter of 
firewalls (SELinux disabled) or misconfiguration on my tomcat5 install.

If I connect locally with telnet, have a look at what I get (the lines 
with >> are the ones that I wrote, the rest is server output)

# telnet localhost 8080
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
 >> get /
<html><head><title>Apache Tomcat/5.5.15 - Error 
report</title><style><!--H1 
{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} 
H2 
{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} 
H3 
{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} 
BODY 
{font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} 
B 
{font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} 
P 
{font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A 
{color : black;}A.name {color : black;}HR {color : #525D76;}--></style> 
</head><body><h1>HTTP Status 501 - Method get is not defined in RFC 2068 
and is not supported by the Servlet API </h1><HR size="1" 
noshade="noshade"><p><b>type</b> Status report</p><p><b>message</b> 
<u>Method get is not defined in RFC 2068 and is not supported by the 
Servlet API </u></p><p><b>description</b> <u>The server does not support 
the functionality needed to fulfill this request (Method get is not 
defined in RFC 2068 and is not supported by the Servlet API 
).</u></p><HR size="1" noshade="noshade"><h3>Apache 
Tomcat/5.5.15</h3></body></html>Connection closed by foreign host.

And back to prompt. I googled a bit and noticed that "get" is not a cool 
command, so I went for GET... And well, tomcat5 then doesn't give an 
error, but closes connections inmediately :)

# telnet localhost 8080
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
 >> GET /
Connection closed by foreign host.

So, _apparently_ tomcat is listening and doing something, but it dies in 
some ways I don't understand. Nothing is logged to "catalina.out", only 
when it starts/stops so I don't even know where to start to troubleshoot 
it :(

Any previous_experiences / suggestions / docs / helps ??

Thanks!!

Re: "Connection closed by foreign host." Tomcat5 doesn't answer (Fedora Core 5, yum install)

[David Iglesias Teixeira <da...@gdtic.es>]

Peter Crowther escribió:
>> From: David Iglesias Teixeira [mailto:david@gdtic.es] 
>> After a port-scan in both machines, I can see that "test" is 
>> listening on port 8080, but "prod" is not
>>     
>
> On "prod":
>
> netstat -an | grep 8080
>
> Is port 8080 listed?  My guess is "yes" based on you being able to
> telnet to it locally, in which case this is a firewall issue, not a
> Tomcat issue.
>   
It is listed, so I'll have to check the hardware firewall that the 
provider has set up.

Thanks for the über-fast response!

Re: "Connection closed by foreign host." Tomcat5 doesn't answer (Fedora Core 5, yum install)

[Christopher Schultz <ch...@christopherschultz.net>]

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Peter,

Peter Crowther wrote:
>> From: David Iglesias Teixeira [mailto:david@gdtic.es] 
>> After a port-scan in both machines, I can see that "test" is 
>> listening on port 8080, but "prod" is not
>
> Is port 8080 listed?  My guess is "yes" based on you being able to
> telnet to it locally, in which case this is a firewall issue, not a
> Tomcat issue.

I'm not so sure. The telnet tests shown suggest that Tomcat will return
an error for an invalid request (method='get') but that a legit request
gets hung up on.

The firewall still might be an issue from another machine, but local
communication seems to work. GET / returns nothing? That's odd... not
even a 500 Server Error.

David, can you check your log files like catalina.out or others in the
'logs' directory? I wonder if whatever is supposed to be responding to
requests for "GET /" is bombing and that's why the connection is closing.

- -chris
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RE: "Connection closed by foreign host." Tomcat5 doesn't answer (Fedora Core 5, yum install)

[Peter Crowther <Pe...@melandra.com>]

> From: David Iglesias Teixeira [mailto:david@gdtic.es] 
> After a port-scan in both machines, I can see that "test" is 
> listening on port 8080, but "prod" is not

On "prod":

netstat -an | grep 8080

Is port 8080 listed?  My guess is "yes" based on you being able to
telnet to it locally, in which case this is a firewall issue, not a
Tomcat issue.

		- Peter

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