Daily Archives: 19/05/2012
IPTables Firewall Configuration in RHEL5
Firewall are two types hardware firewall and software firewall. The important work of firewall is to monitor and control the incoming and outgoing packets.
IPtables is an important firewall in linux. TCP wrapper and SELinux is also a firewall.
Package: iptables
Service: iptables
Operations
There are 3 operations iptables can do
Accept
Allow the packet
Drop
Drop the packet and don't send error message to sender.
Reject
Drop the packet and send error message to sender.
Options
i - incoming interface
O - outgoing interface
A - append (e
