Disconnected unexpectedly from Content Security Server

[Guido Langenbach]

Hello,

We often get the error message "Disconnected unexpectedly from Content
Security Server".

We use "FW1 4.1 on Windows 2000 Server" together with "eSafe Gateway
for CVP".

I added these changes to the objects.C

:http_disable_content_enc (true)
:http_disable_content_type (true)
:http_use_host_h_as_dst (true)
:http_force_down_to_10 (true)
:http_sup_continue (true)
:http_avoid_keep_alive (true)
:http_max_header_length (8000)
:http_max_url_length (8000)
:http_check_request_validity (false)
:http_check_response_validity (false)
:mdq_timeout_to_cvp (300)
:http_cvp_allow_chunked (true)
:http_weeding_allow_chunked (true)
:http_block_java_allow_chunked (true)
:http_allow_ranges (true)
:http_buffers_size (32768)
:http_allow_content_disposition (true)
:http_enable_uri_queries (false)

But it doesn't help.

Any suggestions?

Guido

[Guido Langenbach]

I found the solution:

The problem is an option in the FW1-configuration:

"Return data after content is approved:
Data is sent to the CVP server for approval. Only after all the data
has been received and scanned is it sent back from the CVP server. The
problem with this option is that with large files on slow links, this
can cause the client connection with the server to take a very long
time before any data is returned. The client may time out in this
case."
<http://www.awprofessional.com/articles/article.asp?p=170451&seqNum=2>

In FW1 NG you can change this option to "Return data before content is
approved" to solve the problem.

In FW1 4.1 you have to add an entry to the :props attribut in the
objects.C file.
:http_use_cvp_reply_safe (true)


I could also solve the problem by changing the value of syncscan in
the esafe.ini file from 1 to 0. This worked without changing the
FW1-configuration.