07 Flashcards
in what file is the banner stored?
/etc/issue.net
Where is the message of the day stored? (motd)
/etc/motd
How do I make it so the ssh login displays a banner?
go too /etc/ssh/sshd_config
/ Banner
replace #Banner with /etc/issue.net
Hpw do I access the sendmail banner? how do I edit it?
telnet 192.168.0.80 25
Go too the vi /etc/mail/sendmail.cif
/ Smtp
change
SmtoGreetingMessage-$j Sendmail $v$z; $b
too
SmtpGreetingMessage= Mail Server Ready
A ___________________________ monitors system internals for changes made to files, directories, user accounts, and other system properties.
Host-based intrusion detection system (HIDS)
___________________ is a HIDS technology used to scan, analyze, and report on unexpected changes to specified files
File integrity moniteriung FIM
What are the three main hashes?
_______ Secure one-way Hash used to create digital signatures
_________ A cryptographic hash function that produces hashes in different lengths, varying from from 128 to 256 bits
_______ Widely used 128-bit hash value, expressed as a 32-digit hexadecimal number commonly used to check file integrity
________ an error-detecting code that checks chunks of raw data for error and accidental changes
Haval
SHA
MD5
CRC-32
what tool do I use to verify a files hash, and how do I use it?
md5sum
/bin/ls
_______ is a Linux, host-based IDS used to monitor and send alerts on identified file system changes
tripwire
What are the key files for tripwire?
/etc/tripwire (config)
/var/lib/tripwire
What is the name of the encoded policy tripwire file
What is the name of the encoded configuration tripwire config file?
tw.pol
tw.cfg
What is the policy rule format for a tripwre config?
object_name > property_mask
_________ is a user module accessed via CLI to enter firewall rules into predefined tables
IPtables
__________ is a kernel module that filters, and is considered a first match engine
Netfilter
What are the three iptables table types?
Filter, NAT, Mangling
