Hello! I'm having trouble figuring out how to do solve this. Right now i'm using squid 3.1.9 as reverse proxy with these configurations left by the old administrator: This is working for what we want but now i need to do this for a second website (webmail.server1.pt) and can't seem to get it working. I can get the target server working with https only(not allowing http traffic) but when i add the reverse proxy (squid3) in the middle, it stops working. thanks in advance! squid.conf visible_hostname www.server1.pt acl purge method PURGE acl CONNECT method CONNECT acl SSL method CONNECT acl CP_HTTP proto HTTP acl CP_HTTPS proto HTTPS cache_peer_access dc2_64 deny !CP_HTTP cache_peer_access dc2_64_ssl deny !CP_HTTPS acl all src all acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 acl server1 dstdomain www.server1.pt http_access allow all acl https port 443 http_access allow https acl SSL_ports port 443 acl Safe_ports port 80 acl Safe_ports port 21 acl Safe_ports port 443 http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_access deny all http_port 80 protocol=http defaultsite=www.server1.pt vhost acl regular_acl port 80 acl http proto http https_port 443 sslBump protocol=https accel defaultsite=server1.pt cert=/etc/squid3/ssl/server1.crt key=/etc/squid3/ssl/server1.key cafile=/etc/squid3/ssl/CACHAIN.crt acl secure_acl port 443 http_access allow secure_acl cache_peer 1.1.1.1 parent 80 0 no-query originserver forceddomain= name=www round-robin cache_peer_domain www www.server1.pt server1.pt cache_peer_access www allow regular_acl cache_peer 1.1.1.1 parent 443 0 no-query originserver name=wwws originserver ssl sslflags=DONT_VERIFY_PEER cache_peer_domain wwws www.server1.pt server1.pt cache_peer_access wwws allow secure_acl cache_dir ufs /var/spool/squid3 100 16 256 logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh access_log /var/log/squid3/access_server1.log combined server1 logfile_rotate 15 emulate_httpd_log on coredump_dir /var/spool/squid3 refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880 refresh_pattern . 0 20% 4320 cache_effective_user proxy httpd_suppress_version_string on cache_effective_group proxy