A.Xmas Scan

B.Zero Scan

C.FIN Scan

D.IP Scan

E.UDP SYN Scan

A.useradd usera --directory ipa --gecos "User A"

B.idap- useradd -H Idaps://ipa-server CN=UserA --attribs
"Firstname: User: Lastname: A"

C.ipa-admin create user --account usera --fname User --iname A

D.ipa user-add usera --first User --last A

E.ipa-user- add usera --name "User A"

A.Kerberos authentication

B.SSH hostkey authentication

C.Winbind authentication

D.SSL certificate authentication

A.iptables ~t nat -A POSTROUTING ~o eth0 -j SNAT -to-source 192.0.2.11

B.iptables ~t nat -A PREROUT1NG -\ eth0 -j SNAT -to-source 192.0.2.11

C.iptables -t nat -A POSTROUTING H eth0 -j DNAT -to-source 192.0.2.11

D.iptables -t mangle -A POSTROUTING -i eth0 -j SNAT -to-source 192.0.2.11

E.iptables -t mangle -A POSTROUTING -0 eth0 -j SNAT -to-source 192.0.2.11

A.Private keys should have a sufficient length for the algorithm used for key generation.

B.Private keys should be created on the systems where they will be used and should never leave them.

C.Private keys should be included in X509 certificates.

D.private keys should be uploaded to public key servers.

E.Private keys should always be stored as plain text files without any encryption.