http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#fcgidiotimeout
надо делать через source routing. пример:
#eth0
ip route add default via $Pgw_eth0} table 101
ip rule add from ${ip_eth0} table 101
#eth1
ip route add default via ${gw_eth1} table 102
ip rule add from ${ip_eth1} table 102
или через конфиги:
cat /etc/sysconfig/network-scripts/rule-ethX
from ${ip_ethX} table 101
cat /etc/sysconfig/network-scripts/route-ethX
default via ${gw_ethX} table 101
