# $OpenBSD: relayd.conf,v 1.6 2007/02/26 20:43:32 reyk Exp $ # # Macros # ext_addr="192.168.1.1" webhost1="10.0.0.1" webhost2="10.0.0.2" # # Global Options # # interval 10 # timeout 200 # prefork 5 # # Each table will be mapped to a pf table. # table webhosts { real port http check http "/" code 200 host $webhost1 host $webhost2 } table fallback { real port http check icmp host 127.0.0.1 } # # Services will be mapped to a rdr rule. # service www { virtual host $ext_addr port http interface trunk0 # tag every packet that goes thru the rdr rule with HOSTSTATED tag HOSTSTATED table webhosts backup table fallback } # # Relays and protocols are used for Layer 7 loadbalancing # protocol httpssl { protocol http header append "$REMOTE_ADDR" to "X-Forwarded-For" header append "$SERVER_ADDR:$SERVER_PORT" to "X-Forwarded-By" header change "Connection" to "close" # Various TCP performance options tcp { nodelay, sack, socket buffer 65536, backlog 128 } # ssl { no sslv2, sslv3, tlsv1, ciphers HIGH } # ssl session cache disable } relay wwwssl { # Run as a SSL accelerator listen on $ext_addr port 443 ssl protocol httpssl # Forward to hosts in the webhosts table using a src/dst hash table webhosts loadbalance }