linux认证辅导：LPI认证考试介绍（六）

会计考友

　OBJECTIVE: 1.12.1 TYPE: mc 　　Your logfile shows repeated connections to TCP port 143. Which named service is being accessed?
　　imap
　　smbd
　　nmbd
　　pop2
$ E& ^0 }% o  }" i: [　　smtp
( a7 q2 K! r0 [# a　　OBJECTIVE: 1.12.1 TYPE: fitb
% z( b/ \  ]7 _　　What type of packet does an IP ping use (provide acronym)?
　　ICMP
* D. t/ j$ H7 m( d　　OBJECTIVE: 1.12.2 TYPE: mc
, V/ ?8 M, a' m# M" ?, j　　To learn more about the management of an internet site the best utility to use would be:
1 x' ?9 P' Q( H/ L1 [4 |- h8 a% Y! \　　whois
# N& L+ a$ J/ \2 j　　traceroute
4 {/ W8 |& B# m" |8 U" @! }- H　　ping
6 D- @% N- e, M$ M1 ?& m; v　　telnet
. G. Q; |* g2 B8 @5 B9 Y4 P' m　　rpcdump

　　OBJECTIVE: 1.12.3 TYPE: mc

会计考友

</p>　　If you had a Linux system routing 3 different Networks through 3 NICs and you were having trouble with your IP-Forwarding. Where would you look to ensure that IP-Forwarding is actually enabled?
　　cat /proc/sys/net/ipv4/ip_forward
2 [0 Y" I( P4 l& ~6 O& @5 i6 ?1 X　　netstat
$ F* K) H) q8 Q　　cat /proc/net/tcp
; \# q% p, q$ e3 E　　iptraf -d eth0
- N6 z, t8 {4 n8 P　　tail -f /var/log/messages
　　OBJECTIVE: 1.13.1 TYPE: mc
" p! M$ R7 |9 n) c% L; W　　What file is used for associating port numbers to port names.
3 W* ]4 c1 h' U) y; `& q* m0 F　　/etc/services
　　/etc/hosts
4 u4 J9 i( }' R　　/etc/inetd.conf
　　/etc/securetty
/ [* o+ w( z' P( a2 r　　/etc/ports
　　OBJECTIVE: 1.13.4 TYPE: mc
% Q. R/ P! G4 v' T　　You want to make the directory /local available via NFS. All users on your local network should be allowed to read and write files. Which of the following is correct, assuming that your local network is 192.168.1.0, and your machine is part of the DNS domain foobar.com?
　　/local 192.168.1.0/255.255.255.0(rw)
" K& S9 u1 F2 _, f0 K' u　　/local *.com(rw)
* Y& p7 L5 K% N5 @5 U" S# I9 G* M　　192.168.1.0 /local
% q8 H3 J8 Z; V2 b4 \　　/local 192.168.1.0(rw)
　　OBJECTIVE: 1.14.1 TYPE: fitb
　　Which file can you create to prevent non-root users from logging into the system? (specify path and filename)
2 R: `. w" L+ F4 ?* G& X2 V　　/etc/nologin
　　OBJECTIVE: 1.14.2 TYPE: fitb
( v8 o$ m; j$ Y; K# @$ ?# b　　What command can be used to display a formatted output of the wtmp file? (no arguments)
4 ^% P7 y- z  K# v0 P　　last
- l: Z7 w% L$ t　　OBJECTIVE: 1.14.3 TYPE: fitb
9 U. X( ^/ _4 v  m) g* j# v# X　　Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters)
　　su
　　OBJECTIVE: 1.7.2 TYPE: mc