Title: ??????????
1????
??????
2???? ??????
13.1 ?????? 13.1.1 TCP/IP???? 13.1.2 ??TCP/IP?? 13.1.3 ?????? 13.2 ?????? 13.2.1 ?????? 13.2.2 ?????? 13.2.3 ???? 13.2.4 ???
3???? ??????(2)
????
??TCP/IP???????? ??TCP/IP??????? ??TCP/IP??????? ?
?TCP/IP?????????
413.1.1 TCP/IP????
5TCP/IP????
?????? ??
syslogd portmap inetd named lpd routed or gated sendmail snmpd, dpid2 dhcpcd, dhcprd, dhrcpsd ?????? RPC?????? ?????????? ???? ???? ???? ???? ?????? DHCP????IP??
6??TCP/IP????
- ????TCP/IP?????
- startsrc g tcpip
- ????TCP/IP?????,??inetd ??
- startsrc s inetd
- ????TCP/IP?????
- stopsrc g tcpip???/etc/tcp.clean??
7????
??????? ???? ??
entx entx tokx atmx fddix Sx25a sax sax enx etx trx atx fix xsx slx ppx ??????? IEEE 802.3????? ????? ???????? ????????? X.25???? ?????? ???????
8inet0
- Aix?TCP/IP???,????????????,???????? inet0
- Inet0 ????????ODM??,????
- ? chdev ?????inet0???,?????ODM??
- ????????server3
- chdev -l inet0 -a hostnameserver3
- inet0 changed
913.1.2 ??TCP/IP??
10Minimum??
smit mktcpip
???????????
11Further??
12??????
1313.1.3 ??????
- ?????????
- ?smit tcpip???????
- ?mkdev?chdev???????
- ?ifconfig???????
- ?chdev?mkdev???ODM??????,???????
- ifconfig??????,?????,?????????.
14?????????
- Up??,????????????
- Down??,?????????,????????????????
- Detach??,????????
- ?????????????,???????,???????????detach??
15?smit??????
16?chdev??????
?chdev???????????(permanent),??????????ODM
- ??
- ?en0????ip?9.3.240.58,?????255.255.255.0
- chdev -l en0 -a netaddr'9.3.240.58' -a
netmask255.255.255.0 - en0 changed
17?ifconfig??????
????down??
189.2.1 ??????
ping
traceroute
netstat
ifconfig
lsdev
19ping
- ???????ICMP????????????,????????????????,????????
??????,????ping??? - ?????????????,??ping??????????
20traceroute
- ?????????????????????
- ???????????,????,?????????????
21netstat
??????????
22netstat(2)
?????????
23ifconfig
??en0????
?en0???????IP
en0?????????IP
24ifconfig
- ?ifconfig,??ipconfig
- ????????????????IP??,???ifconfig a
- ??????????(available)????,???ifconfig l
- ???????mtu ??,no??????
25lsdev
??????????
269.2.2 ??????
/etc/hosts
/etc/resolv.conf
/etc/inetd.conf
/etc/services
27/etc/hosts
??????IP?????,??????
28/etc/resolv.conf
????????????
????????
29/etc/inetd.conf
??????????
30/etc/services
????????(port)??? ftp
21/tcp telnet 23/tcp ..
- ??
- telnet???????7777/tcp,??????????????,??telnet
202.115.48.141 7777??
319.2.3 ????
telnet
ftp
rcp?rsh?rlogin
rexec
sendmail
32ftp?telnet
telnet ??????????,???Internet?????????????,??????
???????????????,?????????????????
ftp ??TCP/IP?????????????,?????????????????
33rexec
rexec ?????????????,????????rexec?????,?????/et
c/inetd.conf???? HOME/.netrc??????rexec
?ftp????????????,????rexec ?ftp??,??????????????,?
???,??.netrc????????,??????????600,??.netrc???
34rexec(2)
- ??
- HOME/.netrc??????
- Machine p610 login limhai password 123456
- ????ftp p610?rexec p610 command??????,??.netrc???
???????limhai ????p610??????123456 - ??????????????????rexec??,????,?????????????.netr
c ??????
35rsh?rcp?rlogin
???? ftp rcp ?????? rexec
rsh ???? telnet rlogin
rsh?rcp?rlogin ?Berkeley????UNIX???????
36rsh?rcp?rlogin(2)
- ???????daemon(????)?????(nontrusted),?????????/et
c/hosts.equiv ?HOME/.rhosts???????????,??????????
???? - ??rcp?rlogin? rsh? tftp
- ????rlogind?rshd?tftpd
37rsh?rcp?rlogin???
??
/etc/hosts.equiv ?????? ????
?????? /etc/passwd?
??? root?
?????? ?????? ????
N
Y
N
Y
Y
N
Y
HOME/.rhosts ??????? ?????
N
Y
??
N
Y
Y
?? rlogin?
N
???????
??
N
38rsh?rcp?rlogin???(2)
- /etc/hosts.equiv
- ?????????
- HOME/.rhosts
- ????????????
- ??????limhai??????
- rcp limhai_at_p610file2 file3
- ?p610????file2???????,?????file3
39sendmail
- ????sendmail??????/etc/sendmail.cf
- ???sendmail.cf ?,?????,????
- refresh s sendmail
- ?/etc/aliases?????sendmail???(alias)
- ??/etc/aliases???,????sendmail bi?newaliases
??????
409.2.4 ???(1)
1?????????IP,?????????
- smitty chgenet
- smitty add_interface
- ifconfig en0 newipaddress netmask netmask alias
- ????????
41???(2)
2???????????stop and restart TCP/IP??????
- Use netstat command
- Use the SRC utility to stop and restart
- Use the netconfig utility menu
- Issue the rmdev command on the appropriate
network adapter
42???(3)
?? 1?C 2?B