Shulou(Shulou.com)06/01 Report--

Ifconfig command

Show all network interfaces ifconfig-a

-bash-3.2$ ifconfig-a

En0: flags=1e080863480

Inet 99.99.99.35 netmask 0xffffff00 broadcast 99.99.99.255

Tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

En1: flags=1e080863480

Inet 99.99.99.89 netmask 0xffffff00 broadcast 99.99.99.255

Tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

Lo0: flags=e08084b

Inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255

Inet6:: 1/0

Tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

Only the network interface is displayed with no other information. Ifconfig-l

-bash-3.2# ifconfig-l

En0 en1 lo0

Shutting down and starting the network interface ifconfig en1 up/down

-bash-3.2# ifconfig en1 down

-bash-3.2# ifconfig en1 up

View network interfaces that have been started

-bash-3.2# ifconfig-au

En0: flags=1e080863480

Inet 99.99.99.35 netmask 0xffffff00 broadcast 99.99.99.255

Tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

Lo0: flags=e08084b

Inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255

Inet6:: 1/0

Tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

-bash-3.2# ifconfig-lu

En0 lo0

View network interfaces that are down

-bash-3.2# ifconfig-ad

En1: flags=1e080862480

Inet 99.99.99.89 netmask 0xffffff00 broadcast 99.99.99.255

Tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1

-bash-3.2# ifconfig-ld

En1

-bash-3.2# netstat-in # the network interface marked with * is shown as down. This command can check the IP address of this machine.

Name Mtu Network Address ZoneID Ipkts Ierrs Opkts Oerrs Coll

En0 1500 link#2 ee.cb.f0.2.30.2-477369 0 24513 00

En0 1500 99.99.99 99.99.35-477369 0 24513 00

En1* 1500 link#3 ee.cb.f0.2.30.3-2539 0 84 00

En1* 1500 99.99.99 99.99.89-2539 084 00

Lo0 16896 link#1-93601 0 93608 0 0

Lo0 16896 127.0.0.1-93601 0 93608 0 0

Lo0 16896:: 1 0 93601 0 93608 0 0

You can use the ping command to test network connectivity

Ping-c 5 99.99.99.35

Netstat command

Displays the format of the network interface and whether there are multiple incorrect packets.

-bash-3.2$ netstat-I

Name Mtu Network Address ZoneID Ipkts Ierrs Opkts Oerrs Coll

En0 1500 link#2 ee.cb.f0.2.30.2-478409 0 24611 00

En0 1500 99.99.99 peng2012-478409 0 24611 00

En1* 1500 link#3 ee.cb.f0.2.30.3-2539 0 84 00

En1* 1500 99.99.99 99.99.89-2539 084 00

Lo0 16896 link#1-93767 0 93774 0 0

Lo0 16896 loopback-93767 0 93774 0 0

Lo0 16896:: 1 0 93767 0 93774 0 0

Display the routing table of this machine

-bash-3.2$ netstat-rn

Routing tables

Destination Gateway Flags Refs Use If Exp Groups

Route Tree for Protocol Family 2 (Internet):

99.99.99.0 99.99.99.35 UHSb 0 0 en0-- = >

99.99.99.0 99.99.99.89 UHSb 0 0 en1-- = >

99.99.99.99.35 U 1 20417 en0-- = >

99.99.99 take 24 99.99.99.89 U 0 53 en1--

99.99.99.35 127.0.0.1 UGHS 1,509 lo0-

99.99.99.89 127.0.0.1 UGHS 0 17 lo0--

99.99.99.255 99.99.99.35 UHSb 0 4 en0-- = >

99.99.99.255 99.99.99.89 UHSb 0 en1--

127Accord 8 127.0.0.1 U 13 93148 lo0--

Displays the service netstat-an enabled by this machine (displays sockets, does not show port number)

Netstat-a

Active Internet connections (including servers)

Proto Recv-Q Send-Q Local Address Foreign Address (state)

Tcp 0 0 *. * CLOSED

Tcp 0 0 *. * CLOSED

Tcp4 0 0 *. * CLOSED

Tcp4 0 0 * .daytime *. * LISTEN

Tcp 0 0 * .ftp *. * LISTEN

Tcp4 0 0 * .ssh *. * LISTEN

Tcp 0 0 * .telnet *. * LISTEN

Tcp4 0 0 * .smtp *. * LISTEN

Tcp4 0 0 * .time *. * LISTEN

Tcp4 0 0 * .sunrpc *. * LISTEN

Tcp 0 0 * .smux *. * LISTEN

Tcp 0 0 * .exec *. * LISTEN

Tcp 0 0 * .login *. * LISTEN

Tcp 0 0 * .shell *. * LISTEN

Tcp 0 0 * .rmc *. * LISTEN

Tcp4 0 0 * .writesrv *. * LISTEN

Tcp 0 0 * .5335 *. * LISTEN

Tcp 0 0 * .5336 *. * LISTEN

Tcp 0 0 * .wbem-htt *. * LISTEN

Tcp 0 0 * .wbem-htt *. * LISTEN

Tcp 0 0 * .6988 *. * LISTEN

.

Display the service enabled by this machine (display port number) netstat-an

Netstat-an

Active Internet connections (including servers)

Proto Recv-Q Send-Q Local Address Foreign Address (state)

Tcp 0 0 *. * CLOSED

Tcp 0 0 *. * CLOSED

Tcp4 0 0 *. * CLOSED

Tcp4 0 0 * .13 *. * LISTEN

Tcp 0 0 * .21 *. * LISTEN

Tcp4 0 0 * .22 *. * LISTEN

Tcp 0 0 * .23 *. * LISTEN

Tcp4 0 0 * .25 *. * LISTEN

Tcp4 0 0 * .37 *. * LISTEN

Tcp4 0 0 * .111 *. * LISTEN

Tcp 0 0 * .199 *. * LISTEN

Tcp 0 0 * .512 *. * LISTEN

Tcp 0 0 * .513 *. * LISTEN

Tcp 0 0 * .514 *. * LISTEN

Tcp 0 0 * .657 *. * LISTEN

Tcp4 0 0 * .1334 *. * LISTEN

Tcp 0 0 * .5335 *. * LISTEN

Tcp 0 0 * .5336 *. * LISTEN

Tcp 0 0 * .5988 *. * LISTEN

Tcp 0 0 * .5989 *. * LISTEN

Tcp 0 0 * .6988 *. * LISTEN

.

Displays whether the port number 21 of this machine is enabled.

Netstat-an | grep 21.

Set the host IP address smit mktcpip (smit tcpip further select)

Minimum Configuration & Startup

To Delete existing configuration data, please use Further Configuration menus

Type or select values in entry fields.

Press Enter AFTER making all desired changes.

[TOP] [Entry Fields]

* HOSTNAME [peng2012]

* Internet ADDRESS (dotted decimal) [99.99.99.35]

Network MASK (dotted decimal) [255.255.255.0]

* Network INTERFACE en0

NAMESERVER

Internet ADDRESS (dotted decimal) []

DOMAIN Name []

Default Gateway

Address (dotted decimal or symbolic name) []

Cost [] #

Do Active Dead Gateway Detection? No +

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F1=Help F2=Refresh F3=Cancel F4=List

F5=Reset F6=Command F7=Edit F8=Image

F9=Shell F10=Exit Enter=Do

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