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Chpt 11
How many bytes are in a standard ethernet frame? |
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| Time to Live Varies between 0 and ___ |
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Chpt 11
What is the flag to start a new connection? |
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Chpt 11
What command is used to view the TCP header of a packet? |
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Chpt 11
What protocol is used to find a MAC address given an IP address? |
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Chpt 11
A netmask of 255.255.255.252 allows how many ip hosts? |
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Chpt 11
An ipv6 address contains how many bits |
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| Chpt 12 What does echo `uname -r` return? |
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Definition
| displays version of linux kernel installed - but you really only need to enter "$ uname -r", leave off the echo, it's unecessary |
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Term
Chpt 12
What is the purpose of the following command?
$ ifconfig eth0:0 10.0.0.4 netmask 255.255.255.0 |
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Definition
| configures a subinterface on ethernet 0 |
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Term
Chpt 12
What does this command do?
$ route add -host 178.12.123.0 netmask 255.255.255.255 dev eth2 |
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Definition
| adds a static route to a network using eth2 as an exit int |
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Term
Chpt 12
In a routing table in linux, the metric = ? |
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| Chpt 12 What must be written to /proc/sys/net/ipv4/ip_forward to allow IP forwarding between interfaces? |
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Chpt 12
The routing table uses what protocol? |
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Chpt 12
What does the Zebra software pkg do? |
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Definition
| graphical interface for configuring routing on a Linux dev |
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Chpt 13
A table consists of______ |
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| To add a chain to a table iptables must use $ iptable ___ |
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| Chpt 13 What option is used to view the entire iptable? $ iptable ____ |
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Chpt 13
What does the following line do?:
$ iptables -A INPUT -p tcp -m state --state NEW -DROP |
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Definition
| This will drop packets that originate from outside the firewall as opposed to sessions that originate from within |
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Chpt 13
What does -j REJECT do? |
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Chpt 13
What does the following line in the filter tables do? iptables -A syn-flood -j DROP |
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Definition
| if a syn-flood attack occurs, packets will be automatically dropped. |
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| Chpt14 What is the command to SetUID so the owner can read, write and execute and everyone else just read? |
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Chpt 14
What does the following cmd do?
$ find / -perm +2000 -ls |
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Definition
| search for all files that have permission levels greater than 2000, or the GUID level |
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Chpt 14
In the inittab file, what number goes in the blank to allow me to boot into the GUI?
id:__:initdefault |
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Chpt 14
Accounts with names like ftp, apache, are called? |
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Chpt 14
A program can be isolated in "jail" using what command? |
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Chpt 14
A set of security scripts developed by Novell is called |
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Chpt 14
What is the purpose of logrotate? |
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Definition
| archives old files to keep disk usage down |
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Term
Chpt 14
What does "chatter -i filename" do? |
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Definition
| changes attributes for 'filename' |
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Term
Chpt 15
Well known ports are ports below? |
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| Chpt 15 The best tool for tracking network connections is |
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| Chpt 15 To have two networks pass traffic "ip_forward" must be set to ___? |
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Chpt 15
Which configuration does Fedora use?
inetd or xinetd |
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Chpt 15
What does the following command do?
chkconfig -level 35 portmap off |
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Definition
| shuts down the portmap service on runlevels 3 and 5 |
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Chpt 15
/dev/ttyS1 would be called what on the Windows OS |
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Chpt 15
Which of the following would be classified primarily as an IDS? all that apply:
snort nessus wireshark nmap tcpdump tripwire |
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Chpt 15
To kill a process you need its ___ or name |
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Chpt 15
What does the command "netstat -natu" do? |
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Definition
-n disables hostnames
-a all connections
-t TCP
-u UDP |
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Term
Chpt 17-18
What two ports are used by FTP? |
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Chpt 17-18
Which mode of FTP is the most common?
active or passive |
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Chpt 17-18
What is the login ID on an anonymous FTP server? |
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Chpt 17-18
to quit FTP you must type? |
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Chpt 17-18
What is teh default port for apache? |
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Chpt 17-18
The apache program daemon is called ___ in Fedora. |
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Chpt 17-18
What two files are needed to password protect a directory? |
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Chpt 17-18
When a single host supports multiple websites, each host is called a _____ host. |
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Chpt 22
Which is the most widely used version of NFS? |
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Chpt 22
What code handles the requests between the client and server? |
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| Chpt 22 NFS should be started with _____ to keep the client from having root permissions on the server. |
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| Chpt 22 What file on the server lists the partitions that are shareable with NFS? |
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Chpt 22
What command shows what file systems are being shared on the server? |
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Chpt 22
What command does the client use to mount a file system? |
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Chpt 22
If a "hard" mount is attempted, when does the client stop trying after failing the first time? |
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Definition
| never, or until the remote server responds |
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