multiple gateway multiple virtual eth

storing this for my reference

http://crimsonshift.com/linux-centos-multiple-default-gateway-for-virtual-nic-interface/

one machine multiple gateway

i have 2 NIC and they can access multiple gateway.

i search (google) then found this article

http://kindlund.wordpress.com/2007/11/19/configuring-multiple-default-routes-in-linux/

then found great explaination:

http://www.linuxhorizon.ro/iproute2.html

thanks ;)

configuring squid access control list (ACL)

this will explain and giving some example how to configure squid ACL.

http://www.linuxmail.info/squid-acl-elements/

to allow only www.google.com or *.google.com add:

acl www_google dstdomain www.google.com acl www_google dstdomain google.com  # matches exactly google.com acl google_dom dstdomain .google.com # all subdomains of google.com

httpd.conf location on cpanel

http://forums.cpanel.net/f34/where-httpd-conf-117485.html

it is on /usr/local/apache/conf

also can be viewed using this

httpd -V

configuring ipv6 tunnel under linux

Legend of variables:
$ipv4a = tunnel server's IPv4 IP
$ipv4b = user's IPv4 IP
$ipv6a = tunnel server's side of point-to-point /64 allocation
$ipv6b = user's side of point-to-point /64 allocation

Using ifconfig:

ifconfig sit0 up
ifconfig sit0 inet6 tunnel ::$ipv4a
ifconfig sit1 up
ifconfig sit1 inet6 add $ipv6b
route -A inet6 add ::/0 dev sit1

Using ip:

ip tunnel add he-ipv6 mode sit remote $ipv4a local $ipv4b ttl 255
ip link set he-ipv6 up
ip addr add $ipv6b dev he-ipv6
ip route add ::/0 dev he-ipv6

reference: http://www.tunnelbroker.net/forums/index.php?topic=18.0