# Squid
net-proxy/squid caps pam ldap samba sasl kerberos radius ssl snmp logrotate ecap ssl-crtd perl tproxy
net-proxy/squidguard ldap

# Apache
www-servers/apache apache2_modules_proxy apache2_modules_proxy_ajp apache2_modules_proxy_connect apache2_modules_proxy_http apache2_modules_proxy_wstunnel

# Nginx
www-servers/nginx nginx_modules_stream_map nginx_modules_stream_ssl_preread