hi, i have a scenario where i am hosting many virtual server on one host
machine. i would like to block the virtual servers from seeing the host
server (and possibly all other virtual servers using their local ip). btw i
am quite new to packet filtering and found that i couldnt answer this
question by reading the faq

i created a chain called protection and added a rule as follows (where
10.1.5.0/24 is the network the virtual servers are, and 10.1.4.1 is where
the host server is):

iptables -A protection -s 10.1.5.0/24 -d 10.1.4.1 -j DROP

but when i try to ssh, i can still make a connection. am i doing something
wrong? i did specifiy -p icmp for another rule, which worked - so do i have
to specify a rule for each protocol or should the general rule worked?

below is the state of iptables if it helps at all:

[root@xko-hs01-01 root]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
protection  all  --  anywhere             anywhere

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
protection  all  --  anywhere             anywhere

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain protection (2 references)
target     prot opt source               destination
DROP       icmp --  anywhere             xko-hs01-01.group.xko.net
DROP       icmp --  10.1.5.0/24          anywhere
DROP       all  --  10.1.5.0/24          xko-hs01-01.group.xko.net
[root@xko-hs01-01 root]#

regards

Warwick Brown

Technical Assistant
[EMAIL PROTECTED]

XKO Group
t  01455 554794
f  01455 556681
http://www.xko.co.uk

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