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分类：系统运维

2011-07-06 16:59:33

14. You are logged on as rootand issue the command:
#snoop a
Which two statements about the output results from this command are true? (Choose two.)
A. Network traffic is displayed.
B. Only the MAC addresses are displayed.
C. All outgoing packets have the snoopflag appended..
D. Listen to packets on /dev/audio
E. All Network traffic is sent to the default log file.

Answer: AD

bash-3.00# snoop -a
snoop: Audio device /dev/audio: No such file or directory
bash-3.00# snoop -a
snoop: Audio device /dev/audio: No such file or directory
bash-3.00#
bash-3.00# who -r
   .       run-level 3 Jun 29 00:32     3      0 S
bash-3.00# who
root       pts/1        Jul 6 16:09    (10.127.244.120)
bash-3.00#
bash-3.00# snoop -a
snoop: Audio device /dev/audio: No such file or directory
bash-3.00# cd /dev
bash-3.00# cd /dev/aud
bash: cd: /dev/aud: No such file or directory
bash-3.00# mkdir -p /dev/audio
bash-3.00# snoop -a
snoop: Audio device /dev/audio: Is a directory
bash-3.00# rm -r /dev/audio/
bash-3.00# touch /dev/audio
bash-3.00# s
bash: s: command not found
bash-3.00# snoop -a
Using device /dev/eri (promiscuous mode)
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 a\r\nUsing device /dev
10.40.64.3 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.66.247 -> 10.40.67.255 NBT Datagram Service Type=17 Source=SUZ-U328867D0
[20]
10.40.64.9 -> (broadcast) ARP C Who is 10.40.64.9, 10.40.64.9 ?
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.40.64.2 -> (broadcast) ARP C Who is 10.40.67.236, 10.40.67.236 ?
10.40.64.13 -> 10.40.67.255 UDP D=1947 S=1025 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443   10.40.64.3 -> 224.
10.40.64.11 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.40.64.13 -> 10.4
10.40.64.2 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.64.17 -> BROADCAST    UDP D=1947 S=1025 LEN=48
192.168.0.200 -> BROADCAST    UDP D=1947 S=1026 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.64.3 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.40.64.17 -> BROA
192.168.0.200 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443   10.40.64.3 -> 224.
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.64.2 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
           ? -> (broadcast) ETHER Type=886F (Unknown), size = 106 bytes
10.40.64.20 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.40.64.2 -> (broadcast) ARP C Who is 10.40.67.216, 10.40.67.216 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443            ? -> (mul
10.40.64.3 -> (broadcast) ARP C Who is 10.40.67.102, 10.40.67.102 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443   10.40.64.3 -> (bro
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.64.3 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443   10.40.64.3 -> 224.
10.40.64.2 -> (broadcast) ARP C Who is 10.40.67.236, 10.40.67.236 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443            ? -> (mul
10.40.64.2 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.40.64.2 -> (broadcast) ARP C Who is 10.40.67.216, 10.40.67.216 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
fe80::996e:7908:8d28:ad45 -> ff02::1:2    DHCPv6 Solicit xid=7b1e7 IAs=1
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.65.229 -> 10.40.67.255 UDP D=1947 S=1025 LEN=48
           ? -> *            ETHER Type=9000 (Loopback), size = 60 bytes
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
172.16.0.200 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
172.17.0.200 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.40.64.15 -> BROADCAST    UDP D=1947 S=1026 LEN=48
10.40.64.3 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443            ? -> (mul
10.40.64.2 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[0], Success
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[20], Success
192.168.0.200 -> BROADCAST    UDP D=1947 S=1034 LEN=48
10.40.64.61 -> (broadcast) ARP C Who is 10.40.64.1, 10.40.64.1 ?
10.40.64.216 -> 10.40.67.255 NBT Datagram Service Type=17 Source=SUZ-U452282D0
[20]
           ? -> (multicast) ETHER Type=0000 (LLC/802.3), size = 52 bytes
10.40.64.18 -> BROADCAST    UDP D=1947 S=1025 LEN=48
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[0], Success
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[20], Success
192.168.0.200 -> BROADCAST    UDP D=1947 S=1025 LEN=48
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443   10.40.64.2 -> 224.
10.40.64.3 -> (broadcast) ARP C Who is 10.40.67.102, 10.40.67.102 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[0], Success
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[20], Success
10.40.64.2 -> *            ARP C Who is 10.40.66.191, 10.40.66.191 ?
10.127.244.120 -> sun10        TELNET C port=2443
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su
10.40.64.3 -> 224.0.0.2    UDP D=1985 S=1985 LEN=28
10.40.65.96 -> 10.40.67.255 NBT NS Query Request for SGAAP8C1[0], Success
       sun10 -> 10.127.244.120 TELNET R port=2443 10.127.244.120 -> su

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