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  Network Security in Linux培訓(xùn)

Turn off unnecessary services
Flood Ping
Sniffing
Sniffit
Ettercap
Tcpdump
Network monitoring
Scanning ports (nmap, nessus)
LAN traffic monitor (iptraf)
Monitoring changes in Ethernet network interface cards, and IP number by users (arpwatch)
Dump traffic on a network (tcpdump)
Logging packets
Log packets from the use of mechanisms NetFilters and iptables
IP Protocols Logger (ippl)
Firewall (based on NetFilters and iptables)
Packet path through the filters
Create your own chains
Proxies
WWW Proxy (Squid)
Cryptography
SSLwrap
SSH and SCP
SSH Tunnelling
Spoofing
Obtaining information about the owner of the IP address and domain
Alert the authorities of a breach of the law