1 确认网卡工作
在Linux 系统中使用常见的lsmod 命令单看当前的网卡是否工作
[root@cait-linux sysconfig]# lsmod
Module Size Used by
nls_utf8 2113 0
parport_pc 24577 1
lp 12077 0
parport 37129 2 parport_pc,lp
autofs4 24773 0
i2c_dev 11329 0
i2c_core 22081 1 i2c_dev
sunrpc 162725 1
ipt_REJECT 6593 0
ipt_state 1857 0
ip_conntrack 40565 1 ipt_state
iptable_filter 2753 1
ip_tables 16705 3 ipt_REJECT,ipt_state,iptable_filter
button 6481 0
battery 8901 0
ac 4805 0
md5 4033 1
ipv6 235137 6
uhci_hcd 31065 0
shpchp 82373 0
snd_ens1371 24937 2
snd_rawmidi 26597 1 snd_ens1371
snd_seq_device 8137 1 snd_rawmidi
snd_pcm_oss 49017 0
snd_mixer_oss 17985 2 snd_pcm_oss
snd_pcm 96841 2 snd_ens1371,snd_pcm_oss
snd_timer 29893 1 snd_pcm
snd_page_alloc 9673 1 snd_pcm
snd_ac97_codec 63889 1 snd_ens1371
snd 55461 10 snd_ens1371,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_ac97_codec
soundcore 9889 2 snd
pcnet32 30153 0
mii 5185 1 pcnet32
floppy 58481 0
dm_snapshot 17029 0
dm_zero 2369 0
dm_mirror 27825 0
ext3 116809 2
jbd 71385 1 ext3
dm_mod 57557 6 dm_snapshot,dm_zero,dm_mirror
mptscsih 1601 0
mptsas 10061 1 mptscsih
mptspi 9805 3 mptscsih
mptfc 9033 1 mptscsih
mptscsi 44173 3 mptsas,mptspi,mptfc
mptbase 56929 4 mptsas,mptspi,mptfc,mptscsi
sd_mod 17217 3
scsi_mod 121933 5 mptsas,mptspi,mptfc,mptscsi,sd_mod
[root@cait-linux sysconfig]#
使用 看看是否有网络卡的运作
[root@cait-linux sysconfig]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:3D:A3:E9
inet addr:10.10.81.136 Bcast:10.10.81.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe3d:a3e9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:241487 errors:0 dropped:0 overruns:0 frame:0
TX packets:1733 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19337378 (18.4 MiB) TX bytes:177187 (173.0 KiB)
Interrupt:10 Base address:0x1400
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:7767 errors:0 dropped:0 overruns:0 frame:0
TX packets:7767 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:10676226 (10.1 MiB) TX bytes:10676226 (10.1 MiB)
[root@cait-linux sysconfig]# ping -c 5 10.10.81.1
PING 10.10.81.1 (10.10.81.1) 56(84) bytes of data.
64 bytes from 10.10.81.1: icmp_seq=0 ttl=255 time=6.82 ms
64 bytes from 10.10.81.1: icmp_seq=1 ttl=255 time=1.76 ms
64 bytes from 10.10.81.1: icmp_seq=2 ttl=255 time=0.433 ms
64 bytes from 10.10.81.1: icmp_seq=3 ttl=255 time=0.724 ms
64 bytes from 10.10.81.1: icmp_seq=4 ttl=255 time=1.43 ms
--- 10.10.81.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4002ms
rtt min/avg/max/mdev = 0.433/2.235/6.826/2.344 ms, pipe 2
[root@cait-linux sysconfig]#
[root@cait-linux sysconfig]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.10.81.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 10.10.81.1 0.0.0.0 UG 0 0 0 eth0
[root@cait-linux sysconfig]#
[root@cait-linux sysconfig]# vi /etc/xinetd.d/telnet
# default: on
# description: The telnet server serves telnet sessions; it uses \
# unencrypted username/password pairs for authentication.
service telnet
{
flags = REUSE
socket_type = stream
wait = no
user = root
server = /usr/sbin/in.telnetd
log_on_failure += USERID
disable = no
}
~
[root@cait-linux sysconfig]# tail -n 10 /etc/serices
tail: cannot open `/etc/serices' for reading: No such file or directory
[root@cait-linux sysconfig]# tail -n 10 /etc/services
binkp 24554/udp # Binkley
asp 27374/tcp # Address Search Protocol
asp 27374/udp # Address Search Protocol
tfido 60177/tcp # Ifmail
tfido 60177/udp # Ifmail
fido 60179/tcp # Ifmail
fido 60179/udp # Ifmail
# Local services
[root@cait-linux sysconfig]#
[root@cait-linux sysconfig]# netstat
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 136 10.10.81.136:ssh 10.10.81.131:12380 ESTABLISHED
Active UNIX domain sockets (w/o servers)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ] DGRAM 7134 @/var/run/hal/hotplug_socket
unix 10 [ ] DGRAM 4777 /dev/log
unix 2 [ ] DGRAM 2759 @udevd
unix 2 [ ] DGRAM 60052
unix 3 [ ] STREAM CONNECTED 42292 /var/run/dbus/system_bus_socket
unix 3 [ ] STREAM CONNECTED 42291
unix 2 [ ] DGRAM 14713
unix 3 [ ] STREAM CONNECTED 13383
unix 3 [ ] STREAM CONNECTED 13382
unix 3 [ ] STREAM CONNECTED 13380 /tmp/orbit-root/linc-14ed-0-73f05d418f551
unix 3 [ ] STREAM CONNECTED 13379
unix 3 [ ] STREAM CONNECTED 13378 /tmp/orbit-root/linc-c4c-0-4faf4dc1bfdf2
unix 3 [ ] STREAM CONNECTED 13377
unix 3 [ ] STREAM CONNECTED 13376 /tmp/orbit-root/linc-14ed-0-73f05d418f551
unix 3 [ ] STREAM CONNECTED 13375
unix 3 [ ] STREAM CONNECTED 13372 /tmp/orbit-root/linc-951-0-4a3050b63486e
unix 3 [ ] STREAM CONNECTED 13371
unix 3 [ ] STREAM CONNECTED 13368 /tmp/.ICE-unix/3076
unix 3 [ ] STREAM CONNECTED 13367
unix 3 [ ] STREAM CONNECTED 13362 /tmp/.X11-unix/X0
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