To use squid as a transparent proxy accellerator reverse and etc. the httpd_accel_port has to be 80 , if i redirect traffic with the iptables it can be any port i want expecially with squid on the gateway ant the www server on an internal machine,if i redirect from 80 to 3128 it has to be httpd_accel_port 3128 ... .... .....

ummm, what exactly is your question??

For sure i'haven'got clear the function of a reverse proxy,i have the guide from the squid-cache.org but there is still some obscurity.So,when i use squid as reverse,transparent for clients connecting to my webserver from the internet untrusted httpd_accel_port has to be 80,acting like this as a firewall proxy(i have a web server but it is just on 443,actually),i'm using an ACL also for ftp.
It's not going to be a firewall and i don't want it to be for my trusted clients in my lan to connect to my webserver and for my trusted browsers i want it to do caching and speeding up things while they browse the internet,is this an httpd_accell?
At the end i want squid to be a protection plus the iptables for the servers in DMZ against clients connecting from internet.(http.https,ftp,smtp,pop3-ssl,ircd),anyclient(also considering i have https and pop3-ssl,and ssl dosn't handle to be proxied,right?).For my trusted clients it should help for privacy(tor) and for caching.
It's complicated also for the iptables,for the trusted clients,because of tor, i don't know where to redirect what ???And for untrusted internet that port 80 when i have only https:443!Chaos!!!!!!!!!!!!!!!!!!

please tell me exactly what should make in squid.conf?and what should iptable return?i use squid 2.5 with ubuntu 6.06
i really need help!