network config

======================================== interfaces ===========================
peter@server:/etc/network$ more interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto em1
iface em1 inet static
address 192.168.1.4
netmask 255.255.255.0
dns-nameservers 192.168.1.1
gateway 192.168.1.1

auto wlan0
iface wlan0 inet static
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
address 192.168.1.3
netmask 255.255.255.0


======================================== ifconfig ===========================
peter@server:/etc/network$ ifconfig
em1       Link encap:Ethernet  HWaddr e0:69:95:91:62:50
          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::e269:95ff:fe91:6250/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24773439 errors:0 dropped:30 overruns:0 frame:0
          TX packets:16513569 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:29205558971 (29.2 GB)  TX bytes:2034278599 (2.0 GB)
          Interrupt:20 Memory:fe500000-fe520000

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:65536  Metric:1
          RX packets:787 errors:0 dropped:0 overruns:0 frame:0
          TX packets:787 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:64525 (64.5 KB)  TX bytes:64525 (64.5 KB)

wlan0     Link encap:Ethernet  HWaddr 00:21:2f:3b:36:c8
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::221:2fff:fe3b:36c8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:54293 errors:0 dropped:30700 overruns:0 frame:0
          TX packets:18 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:6366898 (6.3 MB)  TX bytes:2329 (2.3 KB)


======================================== iwconfig ===========================
peter@server:/etc/network$ iwconfig
lo        no wireless extensions.

em1       no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"CARLSON"  Nickname:"rtl_wifi"
          Mode:Managed  Frequency:2.412 GHz  Access Point: 60:A4:4C:DD:5D:88
          Bit Rate:150 Mb/s   Sensitivity:0/0
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=100/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


======================================== arp on desktop =====================
peter@OFFICE ~/.ssh arp -a
? (192.168.1.2) at 00:19:5b:ed:5b:2a [ether] on eth1
? (192.168.1.1) at 60:a4:4c:dd:5d:88 [ether] on eth1
? (192.168.1.3) at e0:69:95:91:62:50 [ether] on eth1
? (192.168.1.4) at e0:69:95:91:62:50 [ether] on eth1