That file is not present in my efw-box and I don't know if it is a temporary file or so other. Look at file permission of /var/efw/proxy/viewersettings; if is not present try to create the file (touch /var/efw/proxy/viewersettings) and set permission to rw for root (chmod 644 /var/efw/proxy/viewersettings);
Davide.
Hello thank's fro the quick reply. the thing this is clean install, I just enable the proxy and when I try to see the logs in the option : LOGS /PROXY I got the error that I mention.
After checking the error_log log i found this
Unable to write file /var/efw/proxy/viewersettings at /var/efw/header.pl line 2394.
[Fri Sep 24 08:48:04 2010] [error] [client ip client ] Premature end of script headers: /home/httpd/cgi-bin/logs_proxy.cgi