1 - I have made three rules for the INPUT chain of the filter table using iptables command. But when I do iptables –L, it takes some time to list the first and second rule for the network. Can some one please tell why is that so? It even takes time to login to the system because of this. Does that mean that there is some thing wrong with the firewall rules I set? Note that if I turn the interface to the network down, the problem is solved.
The target rules doesn't have a PTR record in DNS and/or you have a DNS problem. Try iptables -Ln to avoid dns lookups.
2 – When I do ifup eth1 or reboot that system, it brings up my interface but also sets unwanted/undesirable routing paths in the routing table. I have to manually delete them and then set the appropriate routing tables manually.
If you refers to route 169.254/16, simply add NOZERCONF=yes to /etc/sysconfig/network. If not, please be verbose.
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