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41 Cards in this Set

  • Front
  • Back
What is used to replace rlogin? Why?
Ssh- better security
What is Samba used for?
sharing files with Windows
What two daemons make up Samba?
smbd and nmbd
In Samba, what does smbd do?
file sharing
In Samba, what does nmbd do?
name resolution
What file is used to configure Samba?
smb.conf
What interface is best for configuring Samba?
SWAT (Samba Web Administration Tool)
What port does Samba run on?
901
Why is it considered best practice to put TFTP on a dedicated directory?
the TFTP daemon can't access files outside of its root directory
What security feature prevents unauthorized users from creating files with TFTP?
by default, files must exist before they can be written to
What security feature prevents unauthorized users from creating files with TFTP?
by default, files must exist before they can be written to
What is the lpd daemon responsible for?
listening to print requests and spooling them
What program is used to submit print jobs?
lpr
What is the Linux web proxy?
Squid
What is Linux's file server?
Samba
What is the most widely-used Mail Transfer Agent (MTA)?
Sendmail
What are two alternatives to Sendmail?
Qmail and PostFix
What is the most widely used name server?
BIND
In what two forms is software usually distributed in?
Binary and source code
What three forms do binary distributions usually come in?
tarball; RPM (RedHat Package Manager); and DEB (Debian)
What three limitations do tarballs have?
can't carry dependency information; can't execute instructions; difficult to figure out what package a file came from
What two partitions are always needed?
root and swap
What is the minimum recommended size of the swap partition?
128Mb
What is the recommended minimum size for the / (root) partition?
250Mb
What is the recommended minimum size for the /var partition?
250Mb
What is the /var partition used for?
files that change frequently
On what partition are most applications installed?
/usr
What is the recommended minimum size of the /usr partition?
500Mb+
What partition are kernels stored in?
/boot
What is the recommended minimum size for the /boot partition?
16Mb
On what partition are users' home directories stored?
/home
On what partition are users' home directories stored?
/home
What is the recommended minimum size of the /home directory?
500Mb+
What is the standard filesystem for Linux?
ext2
What is the biggest weakness of the ext2 filesystem?
doesn't handle unexpected shutdowns well
What is the biggest weakness of the ext2 filesystem?
doesn't handle unexpected shutdowns well
How does UNIX store passwords?
as a hash (one-way encrypted)
What does shadowing do?
makes it more difficult to decrypt hashes
What does MD5 do?
makes hashing much stronger
What method is normally used to centrally store passwords?
NIS (Network Information Service)
What are two alternatives to NIS?
LDAP and Kerberos