O

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z]

Oakley
object persistence
oldconfig option (make command)
open ports, checking for 2nd
     fuser
     netstat 2nd 3rd
     nmap
     strobe 2nd
Open System Interconnection model [See OSI model]
Openswan
optimization
     goal of 2nd
     optimized iptables firewall (code listing) 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th
     rule organization 2nd
         heavily used services
         multiport module
         state module for ESTABLISHED and RELATED matches
         traffic flow to determine rule placement
         transport protocols 2nd
         where to begin
     user-defined chains 2nd 3rd
         branching
         characteristics of
         connection-tracking 2nd 3rd
         destination-address-check 2nd
         EXT-icmp-in
         EXT-icmp-out
         EXT-input 2nd 3rd 4th 5th 6th 7th 8th 9th
         EXT-log-in
         EXT-log-out
         EXT-output 2nd 3rd 4th 5th 6th 7th 8th 9th
         firewall initialization 2nd 3rd
         installing 2nd 3rd 4th
         local_dhcp_client_query
         local_dhcp_client_request 2nd
         local_dns_client_request
         local_dns_server_query
         local_tcp_server_response
         local_udp_client_request
         log-tcp-state
         logging dropped packets 2nd 3rd
         remote_dhcp_server_response 2nd 3rd
         remote_dns_server_response
         remote_tcp_client_request
         remote_udp_server_response
         source-address-check 2nd 3rd
         tcp-state-flags 2nd 3rd
organizing rules 2nd
     heavily used services
     multiport module
     state module for ESTABLISHED and RELATED matches
     traffic flow to determine rule placement
     transport protocols 2nd
     where to begin
OSI (Open System Interconnection) model
     connectionless versus connection-oriented protocols 2nd
     Datalink layer
     Network layer
     Physical layer
     Presentation layer
     Session layer
     Transport layer
outgoing Destination Unreachable messages
outgoing packets, filtering
     local source address filtering
     local source port filtering
     outgoing TCP connection-state filtering
     remote destination address filtering 2nd
     remote destination port filtering
OUTPUT chain
     mangle table
     nat table
output reporting conventions (netstat)
output rules, checking 2nd 3rd
owner filter table match extensions 2nd