[SOLVED] Squid proxy blocking transmission's web interface

[blnl]

I have Fedora 12 behind squid proxy, which is running locally on my PC. On my NAS i have installed Transmission bit-torrent that can be accessed via its web interface.
Normally when I connect to the transmission's web interface the pop-up window appears asking for credentials. However when squid proxy is activated the following error message appears:

The requested URL could not be retrieved
Read Error
The system returned: (107) Transport endpoint is not connected

Transmission daemon is functioning normally (I can use it from Windows, or when I bypass the squid proxy). Therefore I assume that squid configuration should be changed, but I'm not 100% sure because transmission configuration contains some security settings as well.

Can someone help me to identify which squid/transmission configuration parameters are responsible for this behavior?

[blnl]

Solution:

change SELinux policy for transmission port

semanage port -a -t http_port_t -p tcp #PORT

See 165586-solved-help-squid-transmission-selinux.html